Portfolio

of

Investments

Lifecycle

Index

Retirement

Income

Fund

August

31,

2023

1

See

Notes

to

Portfolios

of

Investments

(Unaudited)

SHARES

DESCRIPTION

VALUE

AFFILIATED

INVESTMENT

COMPANIES—100.0%(a)

FIXED

INCOME—40.1%

27,450,167

TIAA-CREF

Bond

Index

Fund

$

258,306,067‌

TOTAL

FIXED

INCOME

258,306,067‌

INFLATION-PROTECTED

ASSETS—10.0%

6,193,033

TIAA-CREF

Inflation-Linked

Bond

Fund

64,655,268‌

TOTAL

INFLATION-PROTECTED

ASSETS

64,655,268‌

INTERNATIONAL

EQUITY—13.8%

2,630,041

TIAA-CREF

Emerging

Markets

Equity

Index

Fund

27,010,518‌

2,935,015

TIAA-CREF

International

Equity

Index

Fund

62,046,211‌

TOTAL

INTERNATIONAL

EQUITY

89,056,729‌

SHORT-TERM

FIXED

INCOME—10.1%

6,830,448

TIAA-CREF

Short-Term

Bond

Index

Fund

64,820,948‌

TOTAL

SHORT-TERM

FIXED

INCOME

64,820,948‌

U.S.

EQUITY—26.0%

5,214,552

TIAA-CREF

Equity

Index

Fund

167,074,242‌

TOTAL

U.S.

EQUITY

167,074,242‌

TOTAL

AFFILIATED

INVESTMENT

COMPANIES

643,913,254‌

(Cost

$589,201,018)

PRINCIPAL

RATE

MATURITY

DATE

SHORT-TERM

INVESTMENTS—0.1%

REPURCHASE

AGREEMENT—0.1%

$765,000

(b)

Fixed

Income

Clearing

Corp

(FICC)

5

.300

%

09/01/23

765,000‌

TOTAL

REPURCHASE

AGREEMENT

765,000‌

TOTAL

SHORT-TERM

INVESTMENTS

765,000‌

(Cost

$765,000)

TOTAL

INVESTMENTS—100.1%

644,678,254‌

(Cost

$589,966,018)

OTHER

ASSETS

&

LIABILITIES,

NET—(0.1)%

(

355,853‌

)

NET

ASSETS—100.0%

$

644,322,401‌

(a)

The

Fund

invests

its

assets

in

Class

W

shares

of

the

affiliated

TIAA-CREF

Funds.

(b)

Agreement

with

Fixed

Income

Clearing

Corp

(FICC),

5.300%

dated

8/31/23

to

be

repurchased

at

$765,000

on

9/1/23,

collateralized

by

Government

Agency

Securities,

with

coupon

rate

0.875%

and

maturity

date

6/30/26,

valued

at

$780,364.

Lifecycle

Index

2010

Fund

August

31,

2023

Portfolio

of

Investments

2

See

Notes

to

Portfolios

of

Investments

(Unaudited)

SHARES

DESCRIPTION

VALUE

AFFILIATED

INVESTMENT

COMPANIES—99.9%(a)

FIXED

INCOME—40.1%

27,024,699

TIAA-CREF

Bond

Index

Fund

$

254,302,422‌

TOTAL

FIXED

INCOME

254,302,422‌

INFLATION-PROTECTED

ASSETS—10.1%

6,097,174

TIAA-CREF

Inflation-Linked

Bond

Fund

63,654,497‌

TOTAL

INFLATION-PROTECTED

ASSETS

63,654,497‌

INTERNATIONAL

EQUITY—12.6%

2,366,271

TIAA-CREF

Emerging

Markets

Equity

Index

Fund

24,301,600‌

2,646,700

TIAA-CREF

International

Equity

Index

Fund

55,951,243‌

TOTAL

INTERNATIONAL

EQUITY

80,252,843‌

SHORT-TERM

FIXED

INCOME—13.2%

8,825,515

TIAA-CREF

Short-Term

Bond

Index

Fund

83,754,137‌

TOTAL

SHORT-TERM

FIXED

INCOME

83,754,137‌

U.S.

EQUITY—23.9%

4,721,527

TIAA-CREF

Equity

Index

Fund

151,277,723‌

TOTAL

U.S.

EQUITY

151,277,723‌

TOTAL

AFFILIATED

INVESTMENT

COMPANIES

633,241,622‌

(Cost

$553,959,617)

PRINCIPAL

RATE

MATURITY

DATE

SHORT-TERM

INVESTMENTS—0.0%

REPURCHASE

AGREEMENT—0.0%

$300,000

(b)

Fixed

Income

Clearing

Corp

(FICC)

5

.300

%

09/01/23

300,000‌

TOTAL

REPURCHASE

AGREEMENT

300,000‌

TOTAL

SHORT-TERM

INVESTMENTS

300,000‌

(Cost

$300,000)

TOTAL

INVESTMENTS—99.9%

633,541,622‌

(Cost

$554,259,617)

OTHER

ASSETS

&

LIABILITIES,

NET—0.1%

433,272‌

NET

ASSETS—100.0%

$

633,974,894‌

(a)

The

Fund

invests

its

assets

in

Class

W

shares

of

the

affiliated

TIAA-CREF

Funds.

(b)

Agreement

with

Fixed

Income

Clearing

Corp

(FICC),

5.300%

dated

8/31/23

to

be

repurchased

at

$300,000

on

9/1/23,

collateralized

by

Government

Agency

Securities,

with

coupon

rate

1.875%

and

maturity

date

2/28/27,

valued

at

$306,080.

Portfolio

of

Investments

Lifecycle

Index

2015

Fund

August

31,

2023

3

See

Notes

to

Portfolios

of

Investments

(Unaudited)

SHARES

DESCRIPTION

VALUE

AFFILIATED

INVESTMENT

COMPANIES—99.9%(a)

FIXED

INCOME—39.8%

44,665,591

TIAA-CREF

Bond

Index

Fund

$

420,303,211‌

TOTAL

FIXED

INCOME

420,303,211‌

INFLATION-PROTECTED

ASSETS—9.3%

9,410,594

TIAA-CREF

Inflation-Linked

Bond

Fund

98,246,601‌

TOTAL

INFLATION-PROTECTED

ASSETS

98,246,601‌

INTERNATIONAL

EQUITY—14.4%

4,480,436

TIAA-CREF

Emerging

Markets

Equity

Index

Fund

46,014,081‌

5,014,906

TIAA-CREF

International

Equity

Index

Fund

106,015,117‌

TOTAL

INTERNATIONAL

EQUITY

152,029,198‌

SHORT-TERM

FIXED

INCOME—9.3%

10,378,551

TIAA-CREF

Short-Term

Bond

Index

Fund

98,492,452‌

TOTAL

SHORT-TERM

FIXED

INCOME

98,492,452‌

U.S.

EQUITY—27.1%

8,944,871

TIAA-CREF

Equity

Index

Fund

286,593,672‌

TOTAL

U.S.

EQUITY

286,593,672‌

TOTAL

AFFILIATED

INVESTMENT

COMPANIES

1,055,665,134‌

(Cost

$897,046,036)

PRINCIPAL

RATE

MATURITY

DATE

SHORT-TERM

INVESTMENTS—0.1%

REPURCHASE

AGREEMENT—0.1%

$655,000

(b)

Fixed

Income

Clearing

Corp

(FICC)

5

.300

%

09/01/23

655,000‌

TOTAL

REPURCHASE

AGREEMENT

655,000‌

TOTAL

SHORT-TERM

INVESTMENTS

655,000‌

(Cost

$655,000)

TOTAL

INVESTMENTS—100.0%

1,056,320,134‌

(Cost

$897,701,036)

OTHER

ASSETS

&

LIABILITIES,

NET—0.0%

155,533‌

NET

ASSETS—100.0%

$

1,056,475,667‌

(a)

The

Fund

invests

its

assets

in

Class

W

shares

of

the

affiliated

TIAA-CREF

Funds.

(b)

Agreement

with

Fixed

Income

Clearing

Corp

(FICC),

5.300%

dated

8/31/23

to

be

repurchased

at

$655,000

on

9/1/23,

collateralized

by

Government

Agency

Securities,

with

coupon

rate

1.875%

and

maturity

date

2/28/27,

valued

at

$668,152.

Lifecycle

Index

2020

Fund

August

31,

2023

Portfolio

of

Investments

4

See

Notes

to

Portfolios

of

Investments

(Unaudited)

SHARES

DESCRIPTION

VALUE

AFFILIATED

INVESTMENT

COMPANIES—99.8%(a)

FIXED

INCOME—38.7%

126,443,007

TIAA-CREF

Bond

Index

Fund

$

1,189,828,697‌

TOTAL

FIXED

INCOME

1,189,828,697‌

INFLATION-PROTECTED

ASSETS—7.3%

21,418,333

TIAA-CREF

Inflation-Linked

Bond

Fund

223,607,394‌

TOTAL

INFLATION-PROTECTED

ASSETS

223,607,394‌

INTERNATIONAL

EQUITY—16.1%

14,600,000

TIAA-CREF

Emerging

Markets

Equity

Index

Fund

149,942,001‌

16,326,989

TIAA-CREF

International

Equity

Index

Fund

345,152,543‌

TOTAL

INTERNATIONAL

EQUITY

495,094,544‌

SHORT-TERM

FIXED

INCOME—7.3%

23,621,413

TIAA-CREF

Short-Term

Bond

Index

Fund

224,167,208‌

TOTAL

SHORT-TERM

FIXED

INCOME

224,167,208‌

U.S.

EQUITY—30.4%

29,083,690

TIAA-CREF

Equity

Index

Fund

931,841,436‌

TOTAL

U.S.

EQUITY

931,841,436‌

TOTAL

AFFILIATED

INVESTMENT

COMPANIES

3,064,539,279‌

(Cost

$2,627,847,858)

PRINCIPAL

RATE

MATURITY

DATE

SHORT-TERM

INVESTMENTS—0.1%

REPURCHASE

AGREEMENT—0.1%

$2,105,000

(b)

Fixed

Income

Clearing

Corp

(FICC)

5

.300

%

09/01/23

2,105,000‌

TOTAL

REPURCHASE

AGREEMENT

2,105,000‌

TOTAL

SHORT-TERM

INVESTMENTS

2,105,000‌

(Cost

$2,105,000)

TOTAL

INVESTMENTS—99.9%

3,066,644,279‌

(Cost

$2,629,952,858)

OTHER

ASSETS

&

LIABILITIES,

NET—0.1%

1,856,815‌

NET

ASSETS—100.0%

$

3,068,501,094‌

(a)

The

Fund

invests

its

assets

in

Class

W

shares

of

the

affiliated

TIAA-CREF

Funds.

(b)

Agreement

with

Fixed

Income

Clearing

Corp

(FICC),

5.300%

dated

8/31/23

to

be

repurchased

at

$2,105,000

on

9/1/23,

collateralized

by

Government

Agency

Securities,

with

coupon

rate

1.875%

and

maturity

date

2/28/27,

valued

at

$2,147,140.

Portfolio

of

Investments

Lifecycle

Index

2025

Fund

August

31,

2023

5

See

Notes

to

Portfolios

of

Investments

(Unaudited)

SHARES

DESCRIPTION

VALUE

AFFILIATED

INVESTMENT

COMPANIES—99.9%(a)

FIXED

INCOME—36.7%

218,382,198

TIAA-CREF

Bond

Index

Fund

$

2,054,976,488‌

TOTAL

FIXED

INCOME

2,054,976,488‌

INFLATION-PROTECTED

ASSETS—5.3%

28,346,746

TIAA-CREF

Inflation-Linked

Bond

Fund

295,940,030‌

TOTAL

INFLATION-PROTECTED

ASSETS

295,940,030‌

INTERNATIONAL

EQUITY—18.2%

30,105,159

TIAA-CREF

Emerging

Markets

Equity

Index

Fund

309,179,978‌

33,688,085

TIAA-CREF

International

Equity

Index

Fund

712,166,110‌

TOTAL

INTERNATIONAL

EQUITY

1,021,346,088‌

SHORT-TERM

FIXED

INCOME—5.3%

31,262,493

TIAA-CREF

Short-Term

Bond

Index

Fund

296,681,061‌

TOTAL

SHORT-TERM

FIXED

INCOME

296,681,061‌

U.S.

EQUITY—34.4%

60,071,809

TIAA-CREF

Equity

Index

Fund

1,924,700,757‌

TOTAL

U.S.

EQUITY

1,924,700,757‌

TOTAL

AFFILIATED

INVESTMENT

COMPANIES

5,593,644,424‌

(Cost

$4,820,253,788)

PRINCIPAL

RATE

MATURITY

DATE

SHORT-TERM

INVESTMENTS—0.1%

REPURCHASE

AGREEMENT—0.1%

$4,980,000

(b)

Fixed

Income

Clearing

Corp

(FICC)

5

.300

%

09/01/23

4,980,000‌

TOTAL

REPURCHASE

AGREEMENT

4,980,000‌

TOTAL

SHORT-TERM

INVESTMENTS

4,980,000‌

(Cost

$4,980,000)

TOTAL

INVESTMENTS—100.0%

5,598,624,424‌

(Cost

$4,825,233,788)

OTHER

ASSETS

&

LIABILITIES,

NET—0.0%

1,874,835‌

NET

ASSETS—100.0%

$

5,600,499,259‌

(a)

The

Fund

invests

its

assets

in

Class

W

shares

of

the

affiliated

TIAA-CREF

Funds.

(b)

Agreement

with

Fixed

Income

Clearing

Corp

(FICC),

5.300%

dated

8/31/23

to

be

repurchased

at

$4,980,000

on

9/1/23,

collateralized

by

Government

Agency

Securities,

with

coupon

rate

1.875%

and

maturity

date

2/28/27,

valued

at

$5,079,640.

Lifecycle

Index

2030

Fund

August

31,

2023

Portfolio

of

Investments

6

See

Notes

to

Portfolios

of

Investments

(Unaudited)

SHARES

DESCRIPTION

VALUE

AFFILIATED

INVESTMENT

COMPANIES—99.8%(a)

FIXED

INCOME—32.7%

248,284,385

TIAA-CREF

Bond

Index

Fund

$

2,336,356,063‌

TOTAL

FIXED

INCOME

2,336,356,063‌

INFLATION-PROTECTED

ASSETS—3.2%

22,415,290

TIAA-CREF

Inflation-Linked

Bond

Fund

234,015,624‌

TOTAL

INFLATION-PROTECTED

ASSETS

234,015,624‌

INTERNATIONAL

EQUITY—21.0%

44,228,532

TIAA-CREF

Emerging

Markets

Equity

Index

Fund

454,227,024‌

49,494,327

TIAA-CREF

International

Equity

Index

Fund

1,046,310,068‌

TOTAL

INTERNATIONAL

EQUITY

1,500,537,092‌

SHORT-TERM

FIXED

INCOME—3.3%

24,719,223

TIAA-CREF

Short-Term

Bond

Index

Fund

234,585,428‌

TOTAL

SHORT-TERM

FIXED

INCOME

234,585,428‌

U.S.

EQUITY—39.6%

88,284,800

TIAA-CREF

Equity

Index

Fund

2,828,644,981‌

TOTAL

U.S.

EQUITY

2,828,644,981‌

TOTAL

AFFILIATED

INVESTMENT

COMPANIES

7,134,139,188‌

(Cost

$6,052,390,822)

PRINCIPAL

RATE

MATURITY

DATE

SHORT-TERM

INVESTMENTS—0.1%

REPURCHASE

AGREEMENT—0.1%

$5,510,000

(b)

Fixed

Income

Clearing

Corp

(FICC)

5

.300

%

09/01/23

5,510,000‌

TOTAL

REPURCHASE

AGREEMENT

5,510,000‌

TOTAL

SHORT-TERM

INVESTMENTS

5,510,000‌

(Cost

$5,510,000)

TOTAL

INVESTMENTS—99.9%

7,139,649,188‌

(Cost

$6,057,900,822)

OTHER

ASSETS

&

LIABILITIES,

NET—0.1%

4,994,038‌

NET

ASSETS—100.0%

$

7,144,643,226‌

(a)

The

Fund

invests

its

assets

in

Class

W

shares

of

the

affiliated

TIAA-CREF

Funds.

(b)

Agreement

with

Fixed

Income

Clearing

Corp

(FICC),

5.300%

dated

8/31/23

to

be

repurchased

at

$5,510,000

on

9/1/23,

collateralized

by

Government

Agency

Securities,

with

coupon

rates

0.875%–4.125%

and

maturity

dates

6/15/26–6/30/26,

valued

at

$5,620,236.

Portfolio

of

Investments

Lifecycle

Index

2035

Fund

August

31,

2023

7

See

Notes

to

Portfolios

of

Investments

(Unaudited)

SHARES

DESCRIPTION

VALUE

AFFILIATED

INVESTMENT

COMPANIES—99.9%(a)

FIXED

INCOME—27.2%

210,183,694

TIAA-CREF

Bond

Index

Fund

$

1,977,828,557‌

TOTAL

FIXED

INCOME

1,977,828,557‌

INFLATION-PROTECTED

ASSETS—1.3%

8,797,205

TIAA-CREF

Inflation-Linked

Bond

Fund

91,842,823‌

TOTAL

INFLATION-PROTECTED

ASSETS

91,842,823‌

INTERNATIONAL

EQUITY—24.3%

52,090,378

TIAA-CREF

Emerging

Markets

Equity

Index

Fund

534,968,183‌

58,265,224

TIAA-CREF

International

Equity

Index

Fund

1,231,726,832‌

TOTAL

INTERNATIONAL

EQUITY

1,766,695,015‌

SHORT-TERM

FIXED

INCOME—1.3%

9,693,853

TIAA-CREF

Short-Term

Bond

Index

Fund

91,994,667‌

TOTAL

SHORT-TERM

FIXED

INCOME

91,994,667‌

U.S.

EQUITY—45.8%

103,985,037

TIAA-CREF

Equity

Index

Fund

3,331,680,576‌

TOTAL

U.S.

EQUITY

3,331,680,576‌

TOTAL

AFFILIATED

INVESTMENT

COMPANIES

7,260,041,638‌

(Cost

$5,972,421,984)

PRINCIPAL

RATE

MATURITY

DATE

SHORT-TERM

INVESTMENTS—0.1%

REPURCHASE

AGREEMENT—0.1%

$9,050,000

(b)

Fixed

Income

Clearing

Corp

(FICC)

5

.300

%

09/01/23

9,050,000‌

TOTAL

REPURCHASE

AGREEMENT

9,050,000‌

TOTAL

SHORT-TERM

INVESTMENTS

9,050,000‌

(Cost

$9,050,000)

TOTAL

INVESTMENTS—100.0%

7,269,091,638‌

(Cost

$5,981,471,984)

OTHER

ASSETS

&

LIABILITIES,

NET—0.0%

2,948,942‌

NET

ASSETS—100.0%

$

7,272,040,580‌

(a)

The

Fund

invests

its

assets

in

Class

W

shares

of

the

affiliated

TIAA-CREF

Funds.

(b)

Agreement

with

Fixed

Income

Clearing

Corp

(FICC),

5.300%

dated

8/31/23

to

be

repurchased

at

$9,050,000

on

9/1/23,

collateralized

by

Government

Agency

Securities,

with

coupon

rate

0.875%

and

maturity

date

6/30/26,

valued

at

$9,231,036.

Lifecycle

Index

2040

Fund

August

31,

2023

Portfolio

of

Investments

8

See

Notes

to

Portfolios

of

Investments

(Unaudited)

SHARES

DESCRIPTION

VALUE

AFFILIATED

INVESTMENT

COMPANIES—99.9%(a)

FIXED

INCOME—19.2%

153,561,586

TIAA-CREF

Bond

Index

Fund

$

1,445,014,522‌

TOTAL

FIXED

INCOME

1,445,014,522‌

INTERNATIONAL

EQUITY—28.0%

62,092,186

TIAA-CREF

Emerging

Markets

Equity

Index

Fund

637,686,751‌

69,474,787

TIAA-CREF

International

Equity

Index

Fund

1,468,696,991‌

TOTAL

INTERNATIONAL

EQUITY

2,106,383,742‌

U.S.

EQUITY—52.7%

124,064,641

TIAA-CREF

Equity

Index

Fund

3,975,031,112‌

TOTAL

U.S.

EQUITY

3,975,031,112‌

TOTAL

AFFILIATED

INVESTMENT

COMPANIES

7,526,429,376‌

(Cost

$5,911,618,498)

PRINCIPAL

RATE

MATURITY

DATE

SHORT-TERM

INVESTMENTS—0.1%

REPURCHASE

AGREEMENT—0.1%

$7,915,000

(b)

Fixed

Income

Clearing

Corp

(FICC)

5

.300

%

09/01/23

7,915,000‌

TOTAL

REPURCHASE

AGREEMENT

7,915,000‌

TOTAL

SHORT-TERM

INVESTMENTS

7,915,000‌

(Cost

$7,915,000)

TOTAL

INVESTMENTS—100.0%

7,534,344,376‌

(Cost

$5,919,533,498)

OTHER

ASSETS

&

LIABILITIES,

NET—0.0%

3,410,591‌

NET

ASSETS—100.0%

$

7,537,754,967‌

(a)

The

Fund

invests

its

assets

in

Class

W

shares

of

the

affiliated

TIAA-CREF

Funds.

(b)

Agreement

with

Fixed

Income

Clearing

Corp

(FICC),

5.300%

dated

8/31/23

to

be

repurchased

at

$7,915,000

on

9/1/23,

collateralized

by

Government

Agency

Securities,

with

coupon

rate

0.875%

and

maturity

date

6/30/26,

valued

at

$8,073,380.

Portfolio

of

Investments

Lifecycle

Index

2045

Fund

August

31,

2023

9

See

Notes

to

Portfolios

of

Investments

(Unaudited)

SHARES

DESCRIPTION

VALUE

AFFILIATED

INVESTMENT

COMPANIES—99.8%(a)

FIXED

INCOME—12.6%

81,589,720

TIAA-CREF

Bond

Index

Fund

$

767,759,267‌

TOTAL

FIXED

INCOME

767,759,267‌

INTERNATIONAL

EQUITY—30.2%

54,164,583

TIAA-CREF

Emerging

Markets

Equity

Index

Fund

556,270,266‌

60,611,233

TIAA-CREF

International

Equity

Index

Fund

1,281,321,469‌

TOTAL

INTERNATIONAL

EQUITY

1,837,591,735‌

U.S.

EQUITY—57.0%

108,256,436

TIAA-CREF

Equity

Index

Fund

3,468,536,211‌

TOTAL

U.S.

EQUITY

3,468,536,211‌

TOTAL

AFFILIATED

INVESTMENT

COMPANIES

6,073,887,213‌

(Cost

$4,847,035,127)

PRINCIPAL

RATE

MATURITY

DATE

SHORT-TERM

INVESTMENTS—0.2%

REPURCHASE

AGREEMENT—0.2%

$7,810,000

(b)

Fixed

Income

Clearing

Corp

(FICC)

5

.300

%

09/01/23

7,810,000‌

TOTAL

REPURCHASE

AGREEMENT

7,810,000‌

TOTAL

SHORT-TERM

INVESTMENTS

7,810,000‌

(Cost

$7,810,000)

TOTAL

INVESTMENTS—100.0%

6,081,697,213‌

(Cost

$4,854,845,127)

OTHER

ASSETS

&

LIABILITIES,

NET—0.0%

1,841,431‌

NET

ASSETS—100.0%

$

6,083,538,644‌

(a)

The

Fund

invests

its

assets

in

Class

W

shares

of

the

affiliated

TIAA-CREF

Funds.

(b)

Agreement

with

Fixed

Income

Clearing

Corp

(FICC),

5.300%

dated

8/31/23

to

be

repurchased

at

$7,810,000

on

9/1/23,

collateralized

by

Government

Agency

Securities,

with

coupon

rate

1.875%

and

maturity

date

2/28/27,

valued

at

$7,966,228.

Lifecycle

Index

2050

Fund

August

31,

2023

Portfolio

of

Investments

10

See

Notes

to

Portfolios

of

Investments

(Unaudited)

SHARES

DESCRIPTION

VALUE

AFFILIATED

INVESTMENT

COMPANIES—99.8%(a)

FIXED

INCOME—9.6%

52,196,398

TIAA-CREF

Bond

Index

Fund

$

491,168,107‌

TOTAL

FIXED

INCOME

491,168,107‌

INTERNATIONAL

EQUITY—31.2%

47,012,798

TIAA-CREF

Emerging

Markets

Equity

Index

Fund

482,821,433‌

52,596,879

TIAA-CREF

International

Equity

Index

Fund

1,111,898,018‌

TOTAL

INTERNATIONAL

EQUITY

1,594,719,451‌

U.S.

EQUITY—59.0%

93,911,529

TIAA-CREF

Equity

Index

Fund

3,008,925,379‌

TOTAL

U.S.

EQUITY

3,008,925,379‌

TOTAL

AFFILIATED

INVESTMENT

COMPANIES

5,094,812,937‌

(Cost

$4,097,676,097)

PRINCIPAL

RATE

MATURITY

DATE

SHORT-TERM

INVESTMENTS—0.1%

REPURCHASE

AGREEMENT—0.1%

$5,920,000

(b)

Fixed

Income

Clearing

Corp

(FICC)

5

.300

%

09/01/23

5,920,000‌

TOTAL

REPURCHASE

AGREEMENT

5,920,000‌

TOTAL

SHORT-TERM

INVESTMENTS

5,920,000‌

(Cost

$5,920,000)

TOTAL

INVESTMENTS—99.9%

5,100,732,937‌

(Cost

$4,103,596,097)

OTHER

ASSETS

&

LIABILITIES,

NET—0.1%

3,772,083‌

NET

ASSETS—100.0%

$

5,104,505,020‌

(a)

The

Fund

invests

its

assets

in

Class

W

shares

of

the

affiliated

TIAA-CREF

Funds.

(b)

Agreement

with

Fixed

Income

Clearing

Corp

(FICC),

5.300%

dated

8/31/23

to

be

repurchased

at

$5,920,000

on

9/1/23,

collateralized

by

Government

Agency

Securities,

with

coupon

rate

0.875%

and

maturity

date

6/30/26,

valued

at

$6,038,482.

Portfolio

of

Investments

Lifecycle

Index

2055

Fund

August

31,

2023

11

See

Notes

to

Portfolios

of

Investments

(Unaudited)

SHARES

DESCRIPTION

VALUE

AFFILIATED

INVESTMENT

COMPANIES—99.8%(a)

FIXED

INCOME—8.4%

26,239,898

TIAA-CREF

Bond

Index

Fund

$

246,917,437‌

TOTAL

FIXED

INCOME

246,917,437‌

INTERNATIONAL

EQUITY—31.7%

27,548,826

TIAA-CREF

Emerging

Markets

Equity

Index

Fund

282,926,439‌

30,820,191

TIAA-CREF

International

Equity

Index

Fund

651,538,844‌

TOTAL

INTERNATIONAL

EQUITY

934,465,283‌

U.S.

EQUITY—59.7%

55,055,425

TIAA-CREF

Equity

Index

Fund

1,763,975,804‌

TOTAL

U.S.

EQUITY

1,763,975,804‌

TOTAL

AFFILIATED

INVESTMENT

COMPANIES

2,945,358,524‌

(Cost

$2,474,944,562)

PRINCIPAL

RATE

MATURITY

DATE

SHORT-TERM

INVESTMENTS—0.1%

REPURCHASE

AGREEMENT—0.1%

$3,890,000

(b)

Fixed

Income

Clearing

Corp

(FICC)

5

.300

%

09/01/23

3,890,000‌

TOTAL

REPURCHASE

AGREEMENT

3,890,000‌

TOTAL

SHORT-TERM

INVESTMENTS

3,890,000‌

(Cost

$3,890,000)

TOTAL

INVESTMENTS—99.9%

2,949,248,524‌

(Cost

$2,478,834,562)

OTHER

ASSETS

&

LIABILITIES,

NET—0.1%

3,557,704‌

NET

ASSETS—100.0%

$

2,952,806,228‌

(a)

The

Fund

invests

its

assets

in

Class

W

shares

of

the

affiliated

TIAA-CREF

Funds.

(b)

Agreement

with

Fixed

Income

Clearing

Corp

(FICC),

5.300%

dated

8/31/23

to

be

repurchased

at

$3,890,000

on

9/1/23,

collateralized

by

Government

Agency

Securities,

with

coupon

rate

4.000%

and

maturity

date

2/29/28,

valued

at

$3,967,881.

Lifecycle

Index

2060

Fund

August

31,

2023

Portfolio

of

Investments

12

See

Notes

to

Portfolios

of

Investments

(Unaudited)

SHARES

DESCRIPTION

VALUE

AFFILIATED

INVESTMENT

COMPANIES—99.7%(a)

FIXED

INCOME—7.1%

11,676,608

TIAA-CREF

Bond

Index

Fund

$

109,876,885‌

TOTAL

FIXED

INCOME

109,876,885‌

INTERNATIONAL

EQUITY—32.1%

14,639,793

TIAA-CREF

Emerging

Markets

Equity

Index

Fund

150,350,676‌

16,375,496

TIAA-CREF

International

Equity

Index

Fund

346,177,992‌

TOTAL

INTERNATIONAL

EQUITY

496,528,668‌

U.S.

EQUITY—60.5%

29,247,493

TIAA-CREF

Equity

Index

Fund

937,089,671‌

TOTAL

U.S.

EQUITY

937,089,671‌

TOTAL

AFFILIATED

INVESTMENT

COMPANIES

1,543,495,224‌

(Cost

$1,364,455,978)

PRINCIPAL

RATE

MATURITY

DATE

SHORT-TERM

INVESTMENTS—0.2%

REPURCHASE

AGREEMENT—0.2%

$2,430,000

(b)

Fixed

Income

Clearing

Corp

(FICC)

5

.300

%

09/01/23

2,430,000‌

TOTAL

REPURCHASE

AGREEMENT

2,430,000‌

TOTAL

SHORT-TERM

INVESTMENTS

2,430,000‌

(Cost

$2,430,000)

TOTAL

INVESTMENTS—99.9%

1,545,925,224‌

(Cost

$1,366,885,978)

OTHER

ASSETS

&

LIABILITIES,

NET—0.1%

2,297,761‌

NET

ASSETS—100.0%

$

1,548,222,985‌

(a)

The

Fund

invests

its

assets

in

Class

W

shares

of

the

affiliated

TIAA-CREF

Funds.

(b)

Agreement

with

Fixed

Income

Clearing

Corp

(FICC),

5.300%

dated

8/31/23

to

be

repurchased

at

$2,430,000

on

9/1/23,

collateralized

by

Government

Agency

Securities,

with

coupon

rate

0.875%

and

maturity

date

6/30/26,

valued

at

$2,478,676.

Portfolio

of

Investments

Lifecycle

Index

2065

Fund

August

31,

2023

13

See

Notes

to

Portfolios

of

Investments

(Unaudited)

SHARES

DESCRIPTION

VALUE

AFFILIATED

INVESTMENT

COMPANIES—99.3%(a)

FIXED

INCOME—5.8%

1,109,032

TIAA-CREF

Bond

Index

Fund

$

10,435,994‌

TOTAL

FIXED

INCOME

10,435,994‌

INTERNATIONAL

EQUITY—32.5%

1,722,469

TIAA-CREF

Emerging

Markets

Equity

Index

Fund

17,689,758‌

1,923,554

TIAA-CREF

International

Equity

Index

Fund

40,663,939‌

TOTAL

INTERNATIONAL

EQUITY

58,353,697‌

U.S.

EQUITY—61.0%

3,423,872

TIAA-CREF

Equity

Index

Fund

109,700,862‌

TOTAL

U.S.

EQUITY

109,700,862‌

TOTAL

AFFILIATED

INVESTMENT

COMPANIES

178,490,553‌

(Cost

$169,401,843)

PRINCIPAL

RATE

MATURITY

DATE

SHORT-TERM

INVESTMENTS—0.4%

REPURCHASE

AGREEMENT—0.4%

$740,000

(b)

Fixed

Income

Clearing

Corp

(FICC)

5

.300

%

09/01/23

740,000‌

TOTAL

REPURCHASE

AGREEMENT

740,000‌

TOTAL

SHORT-TERM

INVESTMENTS

740,000‌

(Cost

$740,000)

TOTAL

INVESTMENTS—99.7%

179,230,553‌

(Cost

$170,141,843)

OTHER

ASSETS

&

LIABILITIES,

NET—0.3%

465,136‌

NET

ASSETS—100.0%

$

179,695,689‌

(a)

The

Fund

invests

its

assets

in

Class

W

shares

of

the

affiliated

TIAA-CREF

Funds.

(b)

Agreement

with

Fixed

Income

Clearing

Corp

(FICC),

5.300%

dated

8/31/23

to

be

repurchased

at

$740,000

on

9/1/23,

collateralized

by

Government

Agency

Securities,

with

coupon

rate

0.875%

and

maturity

date

6/30/26,

valued

at

$754,855.

14

Notes

to

Portfolios

of

Investments

(Unaudited)

Organization

and

Significant

Accounting

Policies

Part

F

of

Form

N-PORT

was

prepared in

accordance

with

accounting

principles

generally

accepted

in

the

United

States

of

America

(“U.S.

GAAP”)

and

in

conformity

with

the

applicable

rules

and

regulations

of

the

U.S.

Securities

and

Exchange

Commission related

to

interim

filings. Part

F

of

Form

N-PORT

does

not

include

all

information

and

footnotes

required

by

U.S.

GAAP

for

complete

financial

statements.

Certain

footnote

disclosures

normally

included

in

financial

statements

prepared

in

accordance

with

U.S.

GAAP

have

been

condensed

or

omitted

from

this

report.

For

a

full

set

of

financial

statement

notes,

please

refer

to

the

most

recently

filed

annual

or

semiannual

report.

Valuation

of

Investments

The

Funds’

investments

in

securities

are

recorded

at

their

estimated

fair

value

utilizing

valuation

methods

approved

by

the

Adviser,

subject

to

the

review

and

oversight

of

the

Board.

Fair

value

is

defined

as

the

price

that

would

be

received

upon

selling

an

investment

or

transferring

a

liability

in

an

orderly

transaction

to

an

independent

buyer

in

the

principal

or

most

advantageous

market

for

the

investment.

U.S.

GAAP

establishes

the

three-tier

hierarchy

that

is

used

to

maximize

the

use

of

observable

market

data

and

minimize

the

use

of

unobservable

inputs

and

to

establish

classification

of

fair

value

measurements

for

disclosure

purposes.

Observable

inputs

reflect

the

assumptions

market

participants

would

use

in

pricing

the

asset

or

liability.

Observable

inputs

are

based

on

market

data

obtained

from

sources

independent

of

the

reporting

entity.

Unobservable

inputs

reflect

management’s

assumptions

about

the

assumptions

market

participants

would

use

in

pricing

the

asset

or

liability.

Unobservable

inputs

are

based

on

the

best

information

available

in

the

circumstances.

The

following

is

a

summary

of

the

three-tiered

hierarchy

of

valuation

input

levels.

Level

1

–

Inputs

are

unadjusted

and

prices

are

determined

using

quoted

prices

in

active

markets

for

identical

securities.

Level

2

–

Prices

are

determined

using

other

significant

observable

inputs

(including

quoted

prices

for

similar

securities,

interest

rates,

credit

spreads,

etc.).

Level

3

–

Prices

are

determined

using

significant

unobservable

inputs

(including

management’s

assumptions

in

determining

the

fair

value

of

investments).

The

following

table

summarizes

the

market

value

of

the Funds’

investments

as

of

the

end

of

the

current

fiscal

period, based

on

the

inputs

used

to

value

them:

Fund

Level

1

Level

2

Level

3

Total

Lifecycle

Index

Retirement

Income

Registered

investment

companies

$643,913,254

$—

$—

$643,913,254

Short-term

investments

—

765,000

—

765,000

Total

$643,913,254

$765,000

$—

$644,678,254

1

1

1

1

1

Lifecycle

Index

2010

Registered

investment

companies

$633,241,622

$—

$—

$633,241,622

Short-term

investments

—

300,000

—

300,000

Total

$633,241,622

$300,000

$—

$633,541,622

1

1

1

1

1

Lifecycle

Index

2015

Registered

investment

companies

$1,055,665,134

$—

$—

$1,055,665,134

Short-term

investments

—

655,000

—

655,000

Total

$1,055,665,134

$655,000

$—

$1,056,320,134

1

1

1

1

1

Lifecycle

Index

2020

Registered

investment

companies

$3,064,539,279

$—

$—

$3,064,539,279

Short-term

investments

—

2,105,000

—

2,105,000

Total

$3,064,539,279

$2,105,000

$—

$3,066,644,279

1

1

1

1

1

Lifecycle

Index

2025

Registered

investment

companies

$5,593,644,424

$—

$—

$5,593,644,424

Short-term

investments

—

4,980,000

—

4,980,000

Total

$5,593,644,424

$4,980,000

$—

$5,598,624,424

1

1

1

1

1

Lifecycle

Index

2030

Registered

investment

companies

$7,134,139,188

$—

$—

$7,134,139,188

Short-term

investments

—

5,510,000

—

5,510,000

Total

$7,134,139,188

$5,510,000

$—

$7,139,649,188

1

1

1

1

1

15

Fund

Level

1

Level

2

Level

3

Total

Lifecycle

Index

2035

Registered

investment

companies

$7,260,041,638

$—

$—

$7,260,041,638

Short-term

investments

—

9,050,000

—

9,050,000

Total

$7,260,041,638

$9,050,000

$—

$7,269,091,638

1

1

1

1

1

Lifecycle

Index

2040

Registered

investment

companies

$7,526,429,376

$—

$—

$7,526,429,376

Short-term

investments

—

7,915,000

—

7,915,000

Total

$7,526,429,376

$7,915,000

$—

$7,534,344,376

1

1

1

1

1

Lifecycle

Index

2045

Registered

investment

companies

$6,073,887,213

$—

$—

$6,073,887,213

Short-term

investments

—

7,810,000

—

7,810,000

Total

$6,073,887,213

$7,810,000

$—

$6,081,697,213

1

1

1

1

1

Lifecycle

Index

2050

Registered

investment

companies

$5,094,812,937

$—

$—

$5,094,812,937

Short-term

investments

—

5,920,000

—

5,920,000

Total

$5,094,812,937

$5,920,000

$—

$5,100,732,937

1

1

1

1

1

Lifecycle

Index

2055

Registered

investment

companies

$2,945,358,524

$—

$—

$2,945,358,524

Short-term

investments

—

3,890,000

—

3,890,000

Total

$2,945,358,524

$3,890,000

$—

$2,949,248,524

1

1

1

1

1

Lifecycle

Index

2060

Registered

investment

companies

$1,543,495,224

$—

$—

$1,543,495,224

Short-term

investments

—

2,430,000

—

2,430,000

Total

$1,543,495,224

$2,430,000

$—

$1,545,925,224

1

1

1

1

1

Lifecycle

Index

2065

Registered

investment

companies

$178,490,553

$—

$—

$178,490,553

Short-term

investments

—

740,000

—

740,000

Total

$178,490,553

$740,000

$—

$179,230,553

1

1

1

1

1

A12147-D

(10/23)