NPORT-P: Filer Information

Filer CIK
0000742212 
Filer CCC
********  
Filer Investment Company Type
 
Is this a LIVE or TEST Filing? live is not checked LIVE test is not checked TEST
Would you like a Return Copy? return copy flag is not checked
Is this an electronic copy of an official filing submitted in paper format? Confirm flag is not checked

Submission Contact Information

Name
 
Phone
 
E-Mail Address
 

Notification Information

Notify via Filing Website only?Override internet flag is not checked
Series ID
S000000044 
Class (Contract) ID
C000000079 

NPORT-P: Part A: General Information

Item A.1. Information about the Registrant.

a. Name of Registrant
NORTHWESTERN MUTUAL SERIES FUND INC 
b. Investment Company Act file number for Registrant: (e.g., 811-______)
811-03990 
c. CIK number of Registrant
0000742212 
d. LEI of Registrant
549300T1UBX7MDSNZA55 

e. Address and telephone number of Registrant.
Street Address 1
720 E WISCONSIN AVE 
Street Address 2
 
City
MILWAUKEE 
State, if applicable
WISCONSIN  
Foreign country, if applicable
UNITED STATES OF AMERICA  
Zip / Postal Code
53202 
Telephone number
414-271-1444 

Item A.2. Information about the Series.

a. Name of Series.
Asset Allocation Portfolio 
b. EDGAR series identifier (if any).
S000000044 
c. LEI of Series.
5DD2LVSRPBY8KFA02K39 

Item A.3. Reporting period.

a. Date of fiscal year-end.
2023-12-31 
b. Date as of which information is reported.
2023-12-31 

Item A.4. Final filing

Does the Fund anticipate that this will be its final filing on Form N PORT?Yes is not checked Yes No is checked No

NPORT-P: Part B: Information About the Fund

Report the following information for the Fund and its consolidated subsidiaries.

Item B.1. Assets and liabilities. Report amounts in U.S. dollars.

a. Total assets, including assets attributable to miscellaneous securities reported in Part D.
274013203.82 
b. Total liabilities.
37698.99 
c. Net assets.
273975504.83 

Item B.2. Certain assets and liabilities. Report amounts in U.S. dollars.

a. Assets attributable to miscellaneous securities reported in Part D.
0.00000000 
b. Assets invested in a Controlled Foreign Corporation for the purpose of investing in certain types of instruments such as, but not limited to, commodities.
0.00000000 

c. Borrowings attributable to amounts payable for notes payable, bonds, and similar debt, as reported pursuant to rule 6-04(13)(a) of Regulation S-X [17 CFR 210.6-04(13)(a)].

Amounts payable within one year.
Banks or other financial institutions for borrowings.
0.00000000 
Controlled companies.
0.00000000 
Other affiliates.
0.00000000 
Others.
0.00000000 
Amounts payable after one year.
Banks or other financial institutions for borrowings.
0.00000000 
Controlled companies.
0.00000000 
Other affiliates.
0.00000000 
Others.
0.00000000 

d. Payables for investments purchased either (i) on a delayed delivery, when-issued, or other firm commitment basis, or (ii) on a standby commitment basis.

(i) On a delayed delivery, when-issued, or other firm commitment basis:
0.00000000 
(ii) On a standby commitment basis:
0.00000000 
e. Liquidation preference of outstanding preferred stock issued by the Fund.
0.00000000 
f. Cash and cash equivalents not reported in Parts C and D.
2102313.95000000 

Item B.3. Portfolio level risk metrics.

If the average value of the Fund's debt securities positions for the previous three months, in the aggregate, exceeds 25% or more of the Fund's net asset value, provide:

c. Credit Spread Risk (SDV01, CR01 or CS01). Provide the change in value of the portfolio resulting from a 1 basis point change in credit spreads where the shift is applied to the option adjusted spread, aggregated by investment grade and non-investment grade exposures, for each of the following maturities: 3 month, 1 year, 5 years, 10 years, and 30 years.

Investment grade.
Maturity period.
3 month.
 
1 year.
 
5 years.
 
10 years.
 
30 years.
 
Non-Investment grade.
Maturity period.
3 month.
 
1 year.
 
5 years.
 
10 years.
 
30 years.
 

For purposes of Item B.3., calculate value as the sum of the absolute values of:
(i) the value of each debt security,
(ii) the notional value of each swap, including, but not limited to, total return swaps, interest rate swaps, and credit default swaps, for which the underlying reference asset or assets are debt securities or an interest rate;
(iii) the notional value of each futures contract for which the underlying reference asset or assets are debt securities or an interest rate; and
(iv) the delta-adjusted notional value of any option for which the underlying reference asset is an asset described in clause (i),(ii), or (iii).

Report zero for maturities to which the Fund has no exposure. For exposures that fall between any of the listed maturities in (a) and (b), use linear interpolation to approximate exposure to each maturity listed above. For exposures outside of the range of maturities listed above, include those exposures in the nearest maturity.


Item B.4. Securities lending.

a. For each borrower in any securities lending transaction, provide the following information:

b. Did any securities lending counterparty provide any non-cash collateral? Radio button not checked Yes Radio button checked No

Item B.5. Return information.

a. Monthly total returns of the Fund for each of the preceding three months. If the Fund is a Multiple Class Fund, report returns for each class. Such returns shall be calculated in accordance with the methodologies outlined in Item 26(b) (1) of Form N-1A, Instruction 13 to sub-Item 1 of Item 4 of Form N-2, or Item 26(b) (i) of Form N-3, as applicable.

Monthly Total Return Record: 1
Monthly total returns of the Fund for each of the preceding three months – Month 1.
-2.45000000 
Monthly total returns of the Fund for each of the preceding three months – Month 2.
7.11000000 
Monthly total returns of the Fund for each of the preceding three months – Month 3.
4.98000000 
b. Class identification number(s) (if any) of the Class(es) for which returns are reported.
C000000079 

c. For each of the preceding three months, monthly net realized gain (loss) and net change in unrealized appreciation (or depreciation) attributable to derivatives for each of the following categories: commodity contracts, credit contracts, equity contracts, foreign exchange contracts, interest rate contracts, and other contracts. Within each such asset category, further report the same information for each of the following types of derivatives instrument: forward, future, option, swaption, swap, warrant, and other. Report in U.S. dollars. Losses and depreciation shall be reported as negative numbers.

Asset category.
Equity Contracts
Monthly net realized gain(loss) – Month 1
0.00000000 
Monthly net change in unrealized appreciation (or depreciation) – Month 1
0.00000000 
Monthly net realized gain(loss) – Month 2
0.00000000 
Monthly net change in unrealized appreciation (or depreciation) – Month 2
0.00000000 
Monthly net realized gain(loss) – Month 3
0.00000000 
Monthly net change in unrealized appreciation (or depreciation) – Month 3
0.00000000 
Instrument type.
Future
Monthly net realized gain(loss) – Month 1
0.00000000 
Monthly net change in unrealized appreciation (or depreciation) – Month 1
0.00000000 
Monthly net realized gain(loss) – Month 2
0.00000000 
Monthly net change in unrealized appreciation (or depreciation) – Month 2
0.00000000 
Monthly net realized gain(loss) – Month 3
0.00000000 
Monthly net change in unrealized appreciation (or depreciation) – Month 3
0.00000000 

d. For each of the preceding three months, monthly net realized gain (loss) and net change in unrealized appreciation (or depreciation) attributable to investment other than derivatives. Report in U.S. dollars. Losses and depreciation shall be reported as negative numbers.
Month 1


Monthly net realized gain(loss) – Month 1
-87221.10000000 
Monthly net change in unrealized appreciation (or depreciation) – Month 1
-6128933.21000000 
Month 2
Monthly net realized gain(loss) – Month 2
-159644.60000000 
Monthly net change in unrealized appreciation (or depreciation) – Month 2
17703396.99000000 
Month 3
Monthly net realized gain(loss) – Month 3
-37718.34000000 
Monthly net change in unrealized appreciation (or depreciation) – Month 3
12645246.59000000 

Item B.6. Flow information.

Provide the aggregate dollar amounts for sales and redemptions/repurchases of Fund shares during each of the preceding three months. If shares of the Fund are held in omnibus accounts, for purposes of calculating the Fund's sales, redemptions, and repurchases, use net sales or redemptions/repurchases from such omnibus accounts. The amounts to be reported under this Item should be after any front-end sales load has been deducted and before any deferred or contingent deferred sales load or charge has been deducted. Shares sold shall include shares sold by the Fund to a registered unit investment trust. For mergers and other acquisitions, include in the value of shares sold any transaction in which the Fund acquired the assets of another investment company or of a personal holding company in exchange for its own shares. For liquidations, include in the value of shares redeemed any transaction in which the Fund liquidated all or part of its assets. Exchanges are defined as the redemption or repurchase of shares of one Fund or series and the investment of all or part of the proceeds in shares of another Fund or series in the same family of investment companies.
Month 1
a. Total net asset value of shares sold (including exchanges but excluding reinvestment of dividends and distributions).
891132.37000000 
b. Total net asset value of shares sold in connection with reinvestments of dividends and distributions.
0.00000000 
c. Total net asset value of shares redeemed or repurchased, including exchanges.
3285729.26000000 
Month 2
a. Total net asset value of shares sold (including exchanges but excluding reinvestment of dividends and distributions).
830987.04000000 
b. Total net asset value of shares sold in connection with reinvestments of dividends and distributions.
0.00000000 
c. Total net asset value of shares redeemed or repurchased, including exchanges.
2610010.23000000 
Month 3
a. Total net asset value of shares sold (including exchanges but excluding reinvestment of dividends and distributions).
822679.58000000 
b. Total net asset value of shares sold in connection with reinvestments of dividends and distributions.
0.00000000 
c. Total net asset value of shares redeemed or repurchased, including exchanges.
3188030.46000000 

Item B.7. Highly Liquid Investment Minimum information.

a. If applicable, provide the Fund's current Highly Liquid Investment Minimum.
 
b. If applicable, provide the number of days that the Fund's holdings in Highly Liquid Investments fell below the Fund's Highly Liquid Investment Minimum during the reporting period.
 
c. Did the Fund's Highly Liquid Investment Minimum change during the reporting period? Yes is not checked Yes No is not checked No N/A is not checked N/A

Item B.8. Derivatives Transactions.

For portfolio investments of open-end management investment companies, provide the percentage of the Fund's Highly Liquid Investments that it has pledged as margin or collateral in connection with derivatives transactions that are classified among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]:

(1) Moderately Liquid Investments
(2) Less Liquid Investments
(3) Illiquid Investments

For purposes of Item B.8, when computing the required percentage, the denominator should only include assets (and exclude liabilities) that are categorized by the Fund as Highly Liquid Investments.

Classification
 

Item B.9. Derivatives Exposure for limited derivatives users.

If the Fund is excepted from the rule 18f-4 [17 CFR 270.18f-4] program requirement and limit on fund leverage risk under rule 18f-4(c)(4) [17 CFR 270.18f-4(c)(4)], provide the following information:

a. Derivatives exposure (as defined in rule 18f-4(a) [17 CFR 270.18f-4(a)]), reported as a percentage of the Fund’s net asset value.
 
b. Exposure from currency derivatives that hedge currency risks, as provided in rule 18f-4(c)(4)(i)(B) [17 CFR 270.18f-4(c)(4)(i)(B)], reported as a percentage of the Fund's net asset value.
 
c. Exposure from interest rate derivatives that hedge interest rate risks, as provided in rule 18f-4(c)(4)(i)(B) [17 CFR 270.18f-4(c)(4)(i)(B)], reported as a percentage of the Fund's net asset value.
 
d. The number of business days, if any, in excess of the five-business-day period described in rule 18f-4(c)(4)(ii) [17 CFR 270.18f-4(c)(4)(ii)], that the Fund’s derivatives exposure exceeded 10 percent of its net assets during the reporting period.
 

Item B.10. VaR information.

For Funds subject to the limit on fund leverage risk described in rule 18f-4(c)(2) [17 CFR 270.18f-4(c)(2)], provide the following information, as determined in accordance with the requirement under rule 18f-4(c)(2)(ii) to determine the fund’s compliance with the applicable VaR test at least once each business day:

a. Median daily VaR during the reporting period, reported as a percentage of the Fund's net asset value.
 
b. For Funds that were subject to the Relative VaR Test during the reporting period, provide:
i. As applicable, the name of the Fund’s Designated Index, or a statement that the Fund's Designated Reference Portfolio is the Fund’s Securities Portfolio.
 
ii. As applicable, the index identifier for the Fund’s Designated Index.
 
iii. Median VaR Ratio during the reporting period, reported as a percentage of the VaRof the Fund's Designated Reference Portfolio.
 
c. Backtesting Results. Number of exceptions that the Fund identified as a result of its backtesting of its VaR calculation model (as described in rule 18f-4(c)(1)(iv) [17 CFR 270.18f-4(c)(1)(iv)] during the reporting period.
 

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
JPMorgan Ultra-Short Income ETF 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
549300VN24B8TQAGGX74 
c. Title of the issue or description of the investment.
JPMorgan Ultra-Short Income ETF 
d. CUSIP (if any).
46641Q837 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US46641Q8371 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
40300.00000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
2024269.00000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
0.738850358631 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - International Growth Portfolio 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
A7EFFZCFPQNSS1P3HZ68 
c. Title of the issue or description of the investment.
International Growth Portfolio 
d. CUSIP (if any).
668140684 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681406848 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
7554454.78000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
14383681.90000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
5.249988282319 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - Domestic Equity Portfolio 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
5493004TKKI7X6F71K84 
c. Title of the issue or description of the investment.
DOMESTIC EQUITY PORTFOLIO 
d. CUSIP (if any).
668140791 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681407911 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
10709538.49000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
16931780.35000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
6.180034364935 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - Focused Appreciation Portfolio 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
5493007QO6Z6UMWHLZ04 
c. Title of the issue or description of the investment.
FOCUSED APPRECIATION PORTFOLIO 
d. CUSIP (if any).
668140775 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681407754 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
4341132.70000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
16782819.01000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
6.125664051760 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
iShares Core U.S. Aggregate Bond ETF 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
549300F7VSXTKBGHJE47 
c. Title of the issue or description of the investment.
iShares Core U.S. Aggregate Bond ETF 
d. CUSIP (if any).
464287226 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US4642872265 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
144000.00000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
14292000.00000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
5.216524743286 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - Select Bond Portfolio 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
03DZ35VFRGD62UKLL347 
c. Title of the issue or description of the investment.
Select Bond Portfolio 
d. CUSIP (if any).
668140759 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681407598 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
41173283.39000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
45455304.86000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
16.59101053147 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - Multi-Sector Bond Portfolio 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
P0C14V6IL3O47L1ZG636 
c. Title of the issue or description of the investment.
PIMCO MULTI SECTOR BD PORT MUTUAL FUND 
d. CUSIP (if any).
668140882 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681408828 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
15285761.63000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
14888331.82000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
5.434183552006 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - International Equity Portfolio 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
5493009J2EF7GK480170 
c. Title of the issue or description of the investment.
International Equity Portfolio 
d. CUSIP (if any).
668140692 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681406921 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
9036199.20000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
14259122.33000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
5.204524520850 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
PIMCO Enhanced Short Maturity Active Exchange-Traded Fund 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
VOYE9Z80GB9431LFS645 
c. Title of the issue or description of the investment.
PIMCO Enhanced Short Maturity Active Exchange-Traded Fund 
d. CUSIP (if any).
72201R833 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US72201R8337 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
20100.00000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
2005779.00000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
0.732101580119 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
iShares Core S&P Small-Cap ETF 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
549300BZQ17QYN750B25 
c. Title of the issue or description of the investment.
iShares Core S&P Small-Cap ETF 
d. CUSIP (if any).
464287804 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US4642878049 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
27200.00000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
2944400.00000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
1.074694616158 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - High Yield Bond Portfolio 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
KUVC5M5XHVXDKYES4T32 
c. Title of the issue or description of the investment.
HIGH YIELD BD PORTFOLIO 
d. CUSIP (if any).
668140742 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681407424 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
19151403.10000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
12831440.08000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
4.683426019403 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - Short-Term Bond Portfolio. 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
BEEDB5U9NNUVQYFFEL15 
c. Title of the issue or description of the investment.
Short Term Bond Portolio 
d. CUSIP (if any).
668140601 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681406012 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
3216199.34000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
3283739.52000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
1.198552228980 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - Mid Cap Value Portfolio 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
8TRVIGMWHSWZVXP7PI34 
c. Title of the issue or description of the investment.
MID CAP VALUE PORTFOLIO 
d. CUSIP (if any).
668140783 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681407838 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
9996658.82000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
14795055.05000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
5.400137891590 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - Emerging Markets Equity Portfolio 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
549300B2SFS01R9MCJ10 
c. Title of the issue or description of the investment.
MFS EMERGING MKTS PORT 
d. CUSIP (if any).
668140502 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681405022 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
2939848.67000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
2748758.50000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
1.003286225060 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
iShares Core MSCI EAFE ETF 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
5493009FT582MI7Y3I36 
c. Title of the issue or description of the investment.
iShares Core MSCI EAFE ETF 
d. CUSIP (if any).
46432F842 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US46432F8427 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
139600.00000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
9820860.00000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
3.584575929915 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
iShares Core S&P Mid-Cap ETF 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
549300ODQWH5PC0IUZ78 
c. Title of the issue or description of the investment.
iShares Core S&P Mid-Cap ETF 
d. CUSIP (if any).
464287507 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US4642875078 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
7750.00000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
2147912.50000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
0.783979758092 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
iShares Core S&P 500 ETF 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
5493007M4YMN8XL48C14 
c. Title of the issue or description of the investment.
iShares Core S&P 500 ETF 
d. CUSIP (if any).
464287200 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US4642872000 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
80850.00000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
38616385.50000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
14.09483140617 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - Small Cap Value Portfolio 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
5493006BEZYY47A02J59 
c. Title of the issue or description of the investment.
SMALL CAP VALUE PORTFOLIO 
d. CUSIP (if any).
668140817 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681408174 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
3500570.39000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
6689590.01000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
2.441674489896 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - Small Cap Growth Stock Portfolio 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
YTR2S467AP5XPLF6CQ13 
c. Title of the issue or description of the investment.
SMALL CAP GROWTH STK PORTFOLIO 
d. CUSIP (if any).
668140825 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681408257 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
2656344.67000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
5952868.40000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
2.172773950610 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - Large Cap Blend Portfolio 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
549300J8IDGQV6XROU84 
c. Title of the issue or description of the investment.
LARGE CAP BLEND PORT 
d. CUSIP (if any).
668140205 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681402052 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
13555613.13000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
16090512.78000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
5.872974954452 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part C: Schedule of Portfolio Investments

For each investment held by the Fund and its consolidated subsidiaries, disclose the information requested in Part C. A Fund may report information for securities in an aggregate amount not exceeding five percent of its total assets as miscellaneous securities in Part D in lieu of reporting those securities in Part C, provided that the securities so listed are not restricted, have been held for not more than one year prior to the end of the reporting period covered by this report, and have not been previously reported by name to the shareholders of the Fund or to any exchange, or set forth in any registration statement, application, or report to shareholders or otherwise made available to the public.

Item C.1. Identification of investment.

a. Name of issuer (if any).
Northwestern Mutual Series Fund, Inc. - Mid Cap Growth Stock Portfolio 
b. LEI (if any) of issuer. In the case of a holding in a fund that is a series of a series trust, report the LEI of the series.
LIP0ME8UWTR611J45283 
c. Title of the issue or description of the investment.
MID CAP GROWTH PORTFOLIO 
d. CUSIP (if any).
668140866 

At least one of the following other identifiers:

Identifier.
ISIN
ISIN
US6681408661 

Item C.2. Amount of each investment.

Balance. Indicate whether amount is expressed in number of shares, principal amount, or other units. For derivatives contracts, as applicable, provide the number of contracts.

Balance
4805551.03000000 
Units
Number of shares  
Description of other units.
 
Currency. Indicate the currency in which the investment is denominated.
United States Dollar  
Value. Report values in U.S. dollars. If currency of investment is not denominated in U.S. dollars, provide the exchange rate used to calculate value.
14945263.71000000 
Exchange rate.
 
Percentage value compared to net assets of the Fund.
5.454963471743 

Item C.3. Indicate payoff profile among the following categories (long, short, N/A). For derivatives, respond N/A to this Item and respond to the relevant payoff profile question in Item C.11.

Payoff profile. Long is checked Long Short is not checked Short N/A is not checked N/A

Item C.4. Asset and issuer type. Select the category that most closely identifies the instrument among each of the following:

Asset type (short-term investment vehicle (e.g., money market fund, liquidity pool, or other cash management vehicle), repurchase agreement, equity-common, equity-preferred, debt, derivative-commodity, derivative-credit, derivative-equity, derivative-foreign exchange, derivative-interest rate, derivatives-other, structured note, loan, ABS-mortgage backed security, ABS-asset backed commercial paper, ABS-collateralized bond/debt obligation, ABS-other, commodity, real estate, other). If “other,” provide a brief description.
Equity-common  
Issuer type (corporate, U.S. Treasury, U.S. government agency, U.S. government sponsored entity, municipal, non-U.S. sovereign, private fund, registered fund, other). If “other”, provide a brief description.
Registered fund  

Item C.5. Country of investment or issuer.

Report the ISO country code that corresponds to the country where the issuer is organized.
UNITED STATES OF AMERICA  
If different from the country where the issuer is organized, also report the ISO country code that corresponds to the country of investment or issuer based on the concentrations of the risk and economic exposure of the investments.
 

Item C.6. Is the investment a Restricted Security?

Is the investment a Restricted Security? Yes is not checked Yes No is checked No

Item C.7.

a. Liquidity classification information. For portfolio investments of open-end management investment companies, provide the liquidity classification(s) for each portfolio investment among the following categories as specified in rule 22e-4 [17 CFR 270.22e-4]. For portfolio investments with multiple liquidity classifications, indicate the percentage amount attributable to each classification.

i. Highly Liquid Investments
ii. Moderately Liquid Investments
iii. Less Liquid Investments
iv. Illiquid Investments
Category.
N/A  

b. If attributing multiple classification categories to the holding, indicate which of the three circumstances listed in the Instructions to Item C.7 is applicable.

Instructions to Item C.7 Funds may choose to indicate the percentage amount of a holding attributable to multiple classification categories only in the following circumstances: (1) if portions of the position have differing liquidity features that justify treating the portions separately; (2) if a fund has multiple sub-advisers with differing liquidity views; or (3) if the fund chooses to classify the position through evaluation of how long it would take to liquidate the entire position (rather than basing it on the sizes it would reasonably anticipated trading). In (1) and (2), a fund would classify using the reasonably anticipated trade size for each portion of the position.

Item C.8. Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles (ASC 820, Fair Value Measurement). [1/2/3] Report “N/A” if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient).

Indicate the level within the fair value hierarchy in which the fair value measurements fall pursuant to U.S. Generally Accepted Accounting Principles 7(ASC 820, Fair Value Measurement). [1/2/3] Report "N/A" if the investment does not have a level associated with it (i.e., net asset value used as the practical expedient). 1 is checked 1 2 is not checked 2 3 is not checked 3 N/A is not checked N/A

Item C.9. For debt securities

For debt securities, also provide:

a. Maturity date.
 

b. Coupon.

i. Select the category that most closely reflects the coupon type among the following (fixed, floating, variable, none).
 
ii. Annualized rate.
 
c. Currently in default? [Y/N]Yes is not checked Yes No is not checked No
d. Are there any interest payments in arrears or have any coupon payments been legally deferred by the issuer? [Y/N] Yes is not checked Yes No is not checked No
e. Is any portion of the interest paid in kind? [Y/N] Enter "N" if the interest may be paid in kind but is not actually paid in kind or if the Fund has the option of electing in-kind payment and has elected to be paid in-kind. Yes is not checked Yes No is not checked No

f. For convertible securities, also provide:

i. Mandatory convertible? [Y/N] Yes is not checked Yes No is not checked No
ii. Contingent convertible? [Y/N] Yes is not checked Yes No is not checked No

iii. Description of the reference instrument, including the name of issuer, title of issue, and currency in which denominated, as well as CUSIP of reference instrument, ISIN (if CUSIP is not available), ticker (if CUSIP and ISIN are not available), or other identifier (if CUSIP, ISIN, and ticker are not available).
If other identifier provided, indicate the type of identifier used.

v. Delta (if applicable).
 

Item C.10. For repurchase and reverse repurchase agreements, also provide:

a. Select the category that reflects the transaction (repurchase, reverse repurchase). Select "repurchase agreement" if the Fund is the cash lender and receives collateral. Select "reverse repurchase agreement" if the Fund is the cash borrower and posts collateral. Repurchase is not checked Repurchase Reverse repurchase is not checked Reverse repurchase

b. Counterparty.

i. Cleared by central counterparty? [Y/N] If Y, provide the name of the central counterparty. Yes is not checked Yes No is not checked No

ii. If N, provide the name and LEI (if any) of counterparty.

c. Tri-party? Yes is not checked Yes No is not checked No
d. Repurchase rate.
 
e. Maturity date.
 

f. Provide the following information concerning the securities subject to the repurchase agreement (i.e., collateral). If multiple securities of an issuer are subject to the repurchase agreement, those securities may be aggregated in responding to Items C.10.f.i-iii.

Item C.11. For derivatives, also provide:

Item C.12. Securities lending.

a. Does any amount of this investment represent reinvestment of cash collateral received for loaned securities? Yes is not checked Yes No is checked No
b. Does any portion of this investment represent that is treated as a Fund asset and received for loaned securities? Yes is not checked Yes No is checked No
c. Is any portion of this investment on loan by the Fund? Yes is not checked Yes No is checked No

NPORT-P: Part E: Explanatory Notes (if any)

The Fund may provide any information it believes would be helpful in understanding the information reported in response to any Item of this Form. The Fund may also explain any assumptions that it made in responding to any Item of this Form. To the extent responses relate to a particular Item, provide the Item number(s), as applicable.
Note Item
B.5.a 
Explanatory Notes
Monthly returns presented in Item B.5(a) have been calculated without deducting any applicable sales loads or redemption fees. 

NPORT-P: Signatures

The Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Registrant:
NORTHWESTERN MUTUAL SERIES FUND INC 
By(Signature):
Phillip Rinzel 
Name:
Phillip Rinzel 
Title:
Controller and Chief Accounting Officer 
Date:
2024-01-16