UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Schedule 13G

Under the Securities Exchange Act of 1934

(Amendment No. 1)*

SolarWinds Corporation

(Name of Issuer)

Common stock, par value $0.001

(Title of Class of Securities)

83417Q105

(CUSIP Number)

December 31, 2019

(Date of Event which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

☐ Rule 13d-1(b)

☐ Rule 13d-1(c)

☒ Rule 13d-1(d)

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No. 83417Q105 13G Page 2 of 18 Pages

1	NAMES OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY): Thoma Bravo Fund XI, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☒        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 34,570,393 (See Item 4)
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 34,570,393 (See Item 4)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 34,570,393 (See Item 4)
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.1% (See Item 4)
12	TYPE OF REPORTING PERSON (See Instructions) PN

All percentages calculated in this Schedule 13G are based upon an aggregate of 311,180,888 shares of common stock outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q as filed with the Securities and Exchange Commission (the “Commission”) on November 7, 2019.

CUSIP No. 83417Q105 13G Page 3 of 18 Pages

1	NAMES OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY): Thoma Bravo Fund XI-A, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☒        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 17,362,105 (See Item 4)
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 17,362,105 (See Item 4)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 17,362,105 (See Item 4)
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.6% (See Item 4)
12	TYPE OF REPORTING PERSON (See Instructions) PN

All percentages calculated in this Schedule 13G are based upon an aggregate of 311,180,888 shares of common stock outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q as filed with the Commission on November 7, 2019.

CUSIP No. 83417Q105 13G Page 4 of 18 Pages

1	NAMES OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY): Thoma Bravo Executive Fund XI, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☒        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 762,656 (See Item 4)
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 762,656 (See Item 4)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 762,656 (See Item 4)
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.2% (See Item 4)
12	TYPE OF REPORTING PERSON (See Instructions) PN

All percentages calculated in this Schedule 13G are based upon an aggregate of 311,180,888 shares of common stock outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q as filed with the Commission on November 7, 2019.

CUSIP No. 83417Q105 13G Page 5 of 18 Pages

1	NAMES OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY): Thoma Bravo Fund XII, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☒        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 17,101,107 (See Item 4)
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 17,101,107 (See Item 4)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 17,101,107 (See Item 4)
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.5% (See Item 4)
12	TYPE OF REPORTING PERSON (See Instructions) PN

All percentages calculated in this Schedule 13G are based upon an aggregate of 311,180,888 shares of common stock outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q as filed with the Commission on November 7, 2019.

CUSIP No. 83417Q105 13G Page 6 of 18 Pages

1	NAMES OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY): Thoma Bravo Fund XII-A, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☒        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 15,123,756 (See Item 4)
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 15,123,756 (See Item 4)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 15,123,756 (See Item 4)
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 4.9% (See Item 4)
12	TYPE OF REPORTING PERSON (See Instructions) PN

All percentages calculated in this Schedule 13G are based upon an aggregate of 311,180,888 shares of common stock outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q as filed with the Commission on November 7, 2019.

CUSIP No. 83417Q105 13G Page 7 of 18 Pages

1	NAMES OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY): Thoma Bravo Executive Fund XII, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☒        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 167,358 (See Item 4)
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 167,358 (See Item 4)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 167,358 (See Item 4)
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.1% (See Item 4)
12	TYPE OF REPORTING PERSON (See Instructions) PN

All percentages calculated in this Schedule 13G are based upon an aggregate of 311,180,888 shares of common stock outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q as filed with the Commission on November 7, 2019.

CUSIP No. 83417Q105 13G Page 8 of 18 Pages

1	NAMES OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY): Thoma Bravo Executive Fund XII-A, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☒        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 148,711 (See Item 4)
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 148,711 (See Item 4)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 148,711 (See Item 4)
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.0% (See Item 4)
12	TYPE OF REPORTING PERSON (See Instructions) PN

All percentages calculated in this Schedule 13G are based upon an aggregate of 311,180,888 shares of common stock outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q as filed with the Commission on November 7, 2019.

CUSIP No. 83417Q105 13G Page 9 of 18 Pages

1	NAMES OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY): Thoma Bravo Special Opportunities Fund II, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☒        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 13,991,825 (See Item 4)
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 13,991,825 (See Item 4)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 13,991,825 (See Item 4)
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 4.5% (See Item 4)
12	TYPE OF REPORTING PERSON (See Instructions) PN

All percentages calculated in this Schedule 13G are based upon an aggregate of 311,180,888 shares of common stock outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q as filed with the Commission on November 7, 2019.

CUSIP No. 83417Q105 13G Page 10 of 18 Pages

1	NAMES OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY): Thoma Bravo Special Opportunities Fund II-A, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☒        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 6,792,537 (See Item 4)
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 6,792,537 (See Item 4)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,792,537 (See Item 4)
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 2.2% (See Item 4)
12	TYPE OF REPORTING PERSON (See Instructions) PN

All percentages calculated in this Schedule 13G are based upon an aggregate of 311,180,888 shares of common stock outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q as filed with the Commission on November 7, 2019.

CUSIP No. 83417Q105 13G Page 11 of 18 Pages

1	NAMES OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY): Thoma Bravo Partners XI, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☒        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 73,479,516 (See Item 4)
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 73,479,516 (See Item 4)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 73,479,516 (See Item 4)
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 23.6% (See Item 4)
12	TYPE OF REPORTING PERSON (See Instructions) PN

All percentages calculated in this Schedule 13G are based upon an aggregate of 311,180,888 shares of common stock outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q as filed with the Commission on November 7, 2019.

CUSIP No. 83417Q105 13G Page 12 of 18 Pages

1	NAMES OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY): Thoma Bravo Partners XII, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☒        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 32,540,932 (See Item 4)
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 32,540,932 (See Item 4)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 32,540,932 (See Item 4)
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 10.5% (See Item 4)
12	TYPE OF REPORTING PERSON (See Instructions) PN

All percentages calculated in this Schedule 13G are based upon an aggregate of 311,180,888 shares of common stock outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q as filed with the Commission on November 7, 2019.

CUSIP No. 83417Q105 13G Page 13 of 18 Pages

1	NAMES OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY): Thoma Bravo, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a)  ☒        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0
	6	SHARED VOTING POWER 106,020,448 (See Item 4)
	7	SOLE DISPOSITIVE POWER 0
	8	SHARED DISPOSITIVE POWER 106,020,448 (See Item 4)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 106,020,448 (See Item 4)
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 34.1% (See Item 4)
12	TYPE OF REPORTING PERSON (See Instructions) OO

All percentages calculated in this Schedule 13G are based upon an aggregate of 311,180,888 shares of common stock outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q as filed with the Commission on November 7, 2019.

CUSIP No. 83417Q105 13G Page 14 of 18 Pages

Item 1(a) Name of Issuer:

SolarWinds Corporation (the “Company”)

Item 1(b) Address of Issuer’s Principal Executive Offices:

The Company’s principal executive offices are at 7171 Southwest Parkway, Building 400, Austin, Texas 78735.

Item 2(a) Name of Person Filing:

This Schedule 13G is being jointly filed by each of the following persons pursuant to Rule 13d-1(k) promulgated by the Commission pursuant to Section 13 of the Act: Thoma Bravo Fund XI, L.P. (“TB Fund XI”), Thoma Bravo Fund XI-A, L.P. (“TB Fund XI-A”), Thoma Bravo Executive Fund XI, L.P. (“TB Exec Fund XI”), Thoma Bravo Fund XII, L.P. (“TB Fund XII”), Thoma Bravo Fund XII-A, L.P. (“TB Fund XII-A”), Thoma Bravo Executive Fund XII, L.P. (“TB Exec Fund XII”), Thoma Bravo Executive Fund XII-A, L.P. (“TB Exec Fund XII-A”), Thoma Bravo Special Opportunities Fund II, L.P. (“TB SOF II”), Thoma Bravo Special Opportunities Fund II-A, L.P. (“TB SOF II-A”), Thoma Bravo Partners XI, L.P. (“TB Partners XI”), Thoma Bravo Partners XII, L.P. (“TB Partners XII”) and Thoma Bravo, LLC (“TB, LLC” and, collectively, the “Reporting Persons”)

The Reporting Persons have entered into a Joint Filing Agreement, dated February 13, 2019, a copy of which is attached as Exhibit A to the Statement on Schedule 13G filed by the Reporting Persons on February 13, 2019, pursuant to which the Reporting Persons agreed to file this Schedule 13G and any amendments thereto jointly in accordance with the provisions of Rule 13d-1(k)(1) under the Act.

Item 2(b) Address of Principal Business Office or, if none, Residence:

The address of the principal business office of each of the Reporting Persons is c/o Thoma Bravo, LLC, 150 N. Riverside Plaza, Suite 2800, Chicago, Illinois 60606.

Item 2(c) Citizenship:

Each of the Reporting Persons were organized under the laws of the State of Delaware.

Item 2(d) Title of Class of Securities:

Common stock, par value $0.001 per share (the “Common Stock”)

Item 2(e) CUSIP Number:

83417Q105

Item 3 If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

(a)	☐	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).
(b)	☐	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
(c)	☐	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).
(d)	☐	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).
(e)	☐	An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E).
(f)	☐	An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F).
(g)	☐	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G).
(h)	☐	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813).

CUSIP No. 83417Q105 13G Page 15 of 18 Pages

(i)	☐	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3).
(j)	☐	Non-U.S. institution in accordance with Rule 13d-1(b)(1)(ii)(J).
(k)	☐	Group, in accordance with §240.13d-1(b)(1)(ii)(K).

Not applicable.

Item 4 Ownership:

(a) Amount beneficially owned: In the aggregate, the Reporting Persons beneficially own 106,020,448 shares of Common Stock, consisting of 34,570,393 shares held directly by TB Fund XI, 17,362,105 shares held directly by TB Fund XI-A, 762,656 shares held directly by TB Exec Fund XI, 17,101,107 shares held directly by TB Fund XII, 15,123,756 shares held directly by TB Fund XII-A, 167,358 shares held directly by TB Exec Fund XII, 148,711 shares held directly by TB Exec Fund XII-A, 13,991,825 shares held directly by TB SOF II and 6,792,537 shares held directly by TB SOF II-A.

TB Partners XI is the general partner of each of TB Fund XI, TB Fund XI-A, TB Exec Fund XI, TB SOF II and TB SOF II-A. TB Partners XII is the general partner of each of TB Fund XII, TB Fund XII-A, TB Exec Fund XII and TB Exec Fund XII-A. TB, LLC is the general partner of each of TB Partners XI and TB Partners XII. In those capacities, TB Partners XI, TB Partners XII and TB, LLC may be deemed to share voting and dispositive power with respect to the Common Stock directly held by the other Reporting Persons. An investment committee, acting by majority vote, shares voting and dispositive power with respect to the Common Stock beneficially held by TB, LLC. Each of TB Partners XI, TB Partners XII and TB, LLC disclaims beneficial ownership of the shares of Common Stock owned by the Reporting Persons except to the extent of its pecuniary interest therein.

Certain of the Reporting Persons, affiliates of Silver Lake Group, L.L.C. and certain other stockholders listed on Annex A hereto (collectively, the “Stockholders”) are parties to a Stockholders’ Agreement (the “Stockholders’ Agreement”), which contains, among other things, certain provisions relating to transfer of, and coordination of the voting of, securities of the Issuer by the parties thereto.

By virtue of the Stockholders’ Agreement and the obligations and rights thereunder, the Reporting Persons acknowledge and agree that they are acting as a “group” with the other Stockholders within the meaning of Section 13(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Based in part on information provided by or on behalf of the other Stockholders, as of December 31, 2019, such a “group” would be deemed to beneficially own an aggregate of 260,280,312 shares of Common Stock, or 83.6% of the total number of shares outstanding. The Stockholders’ Agreement also provides the Reporting Persons with the right to require the disposition of the Common Shares held by the stockholders listed on Annex A hereto (other than affiliates of Silver Lake Group, L.L.C.). Based in part on information provided by the Issuer, as of December 31, 2019, an aggregate of 24,143,528 shares of Common Stock were subject to such right. The Reporting Persons expressly disclaim beneficial ownership over any shares of Common Stock that they may be deemed to beneficially own solely by reason of the Stockholder Agreement. Certain entities affiliated with Silver Lake Group, L.L.C. and the other stockholders listed on Annex A attached hereto are separately making Schedule 13G filings reporting their beneficial ownership of shares of Common Stock.

(b) Percent of class: In the aggregate, the Reporting Persons beneficially own 106,020,448 shares of Common Stock, or 34.1% of the total number of shares outstanding.

All percentages calculated in this Schedule 13G are based upon an aggregate of 311,180,888 shares of common stock outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q as filed with the Commission on November 7, 2019.

(c) Number of shares as to which such person has:

(i) sole power to vote or to direct the vote: See Item 5 on the cover pages hereto.

(ii) shared power to vote or to direct the vote: See Item 6 on the cover pages hereto.

(iii) sole power to dispose or to direct the disposition of: See Item 7 on the cover pages hereto.

(iv) shared power to dispose or to direct the disposition of: See Item 8 on the cover pages hereto.

CUSIP No. 83417Q105 13G Page 16 of 18 Pages

Pursuant to Rule 13d-4 of the Act, the Reporting Persons expressly declare that the filing of this statement shall not be construed as an admission that any such person is, for the purposes of Section 13(d) and/or Section 13(g) of the Act or otherwise, the beneficial owner of any securities covered by this statement held by any other person. The Reporting Persons expressly disclaim that they have agreed to act as a group other than as described in this Schedule 13G.

Item 5 Ownership of Five Percent or Less of a Class:

Not Applicable.

Item 6 Ownership of More Than Five Percent on Behalf of Another Person:

Not Applicable.

Item 7 Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company:

Not Applicable.

Item 8 Identification and Classification of Members of the Group:

See Items 2(a) - 2(c).

Item 9 Notice of Dissolution of Group:

Not Applicable.

Item 10 Certification:

Not Applicable.

CUSIP No. 83417Q105 13G Page 17 of 18 Pages

Exhibit Index

Exhibit 1 Agreement of Joint Filing as required by Rule 13d-1(k)(1) under the Act (incorporated herein by reference to Exhibit 1 of the Schedule 13G filed by the Reporting Persons on February 13, 2019).

CUSIP No. 83417Q105 13G Page 18 of 18 Pages

Annex A

List of Other Stockholders Party to the Stockholder Agreement

AlpInvest GA Co C.V.

AlpInvest Partners Co-Investments 2014 I C.V.

AlpInvest Partners Co-Investments 2014 II C.V.

AM 2014 Co C.V.

HarbourVest 2015 Global Fund L.P.

HarbourVest Global Annual Private Equity Fund L.P.

HarbourVest Partners IX Buyout Fund L.P.

HarbourVest Partners X AIF Buyout L.P.

HarbourVest Partners X Buyout Fund L.P.

Hermes USA Investors Venture II LP

Howard Hughes Medical Institute

Lexington Co-Investment Holdings III L.P.

Meranti Fund L.P.

NB—Iowa’s Public Universities LP

NB Crossroads XX—MC Holdings LP

NB Crossroads XXI—MC Holdings LP

NB PEP Holdings Limited

NB RP Co-Investment & Secondary Fund LLC

NB Sonoran Fund Limited Partnership

NB Strategic Co-Investment Partners II Holdings LP

NB Wildcats Fund LP

Neuberger Berman Insurance Fund Series of the SALI Multi-Series Fund L.P.

NPS Co-Investment (A) Fund L.P.

The Prudential Insurance Corporation of America

The Prudential Legacy Insurance Corporation of New Jersey

Silver Lake Partners IV, L.P.

Silver Lake Technology Investors IV, L.P.

Silver Lake Technology Associates IV, L.P.

SLP Aurora Co-Invest, L.P.

SMRS-TOPE LLC

TFL Trustee Company Limited as Trustee of the TFL Pension Fund

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: February 13, 2020

THOMA BRAVO FUND XI, L.P.
By:	Thoma Bravo Partners XI, L.P.
Its:	General Partner
By:	Thoma Bravo, LLC
Its:	General Partner
By:	/s/ Seth Boro
Name:	Seth Boro
Title:	Authorized Signatory
THOMA BRAVO FUND XI-A, L.P.
By:	Thoma Bravo Partners XI, L.P.
Its:	General Partner
By:	Thoma Bravo, LLC
Its:	General Partner
By:	/s/ Seth Boro
Name:	Seth Boro
Title:	Authorized Signatory
THOMA BRAVO EXECUTIVE FUND XI, L.P.
By:	Thoma Bravo Partners XI, L.P.
Its:	General Partner
By:	Thoma Bravo, LLC
Its:	General Partner
By:	/s/ Seth Boro
Name:	Seth Boro
Title:	Authorized Signatory

THOMA BRAVO FUND XII, L.P.
By:	Thoma Bravo Partners XII, L.P.
Its:	General Partner
By:	Thoma Bravo, LLC
Its:	General Partner
By:	/s/ Seth Boro
Name:	Seth Boro
Title:	Authorized Signatory
THOMA BRAVO FUND XII-A, L.P.
By:	Thoma Bravo Partners XII, L.P.
Its:	General Partner
By:	Thoma Bravo, LLC
Its:	General Partner
By:	/s/ Seth Boro
Name:	Seth Boro
Title:	Authorized Signatory
THOMA BRAVO EXECUTIVE FUND XII, L.P.
By:	Thoma Bravo Partners XII, L.P.
Its:	General Partner
By:	Thoma Bravo, LLC
Its:	General Partner
By:	/s/ Seth Boro
Name:	Seth Boro
Title:	Authorized Signatory
THOMA BRAVO EXECUTIVE FUND XII-A, L.P.
By:	Thoma Bravo Partners XII, L.P.
Its:	General Partner
By:	Thoma Bravo, LLC
Its:	General Partner
By:	/s/ Seth Boro
Name:	Seth Boro
Title:	Authorized Signatory

THOMA BRAVO SPECIAL OPPORTUNITIES FUND II, L.P.
By:	Thoma Bravo Partners XI, L.P.
Its:	General Partner
By:	Thoma Bravo, LLC
Its:	General Partner
By:	/s/ Seth Boro
Name:	Seth Boro
Title:	Authorized Signatory
THOMA BRAVO SPECIAL OPPORTUNITIES FUND II-A, L.P.
By:	Thoma Bravo Partners XI, L.P.
Its:	General Partner
By:	Thoma Bravo, LLC
Its:	General Partner
By:	/s/ Seth Boro
Name:	Seth Boro
Title:	Authorized Signatory
THOMA BRAVO PARTNERS XI, L.P.
By:	Thoma Bravo, LLC
Its:	General Partner
By:	/s/ Seth Boro
Name:	Seth Boro
Title:	Authorized Signatory
THOMA BRAVO PARTNERS XII, L.P.
By:	Thoma Bravo, LLC
Its:	General Partner
By:	/s/ Seth Boro
Name:	Seth Boro
Title:	Authorized Signatory
THOMA BRAVO, LLC
By:	/s/ Seth Boro
Name:	Seth Boro
Title:	Authorized Signatory