CUSIP No: 704551100

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO § 240.13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED

PURSUANT TO § 240.13d-2.

(Amendment No. 4)*

Peabody Energy Corporation

(Name of Issuer)

Common Stock, $0.01 par value per share

(Title of Class of Securities)

704551100

(CUSIP Number)

December 31, 2020

(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)

x   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 purposes 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: 704551100

(1) Susquehanna Securities, LLC and G1 Execution Services, LLC are affiliated independent broker-dealers which, together with Capital Ventures International, CVI Opportunities Fund I, LLLP, CVI Opportunities Fund II, LLLP, Susquehanna Advisors Group, Inc. and Susquehanna Fundamental Investments, LLC may be deemed a group.  For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons.  Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

(2) Susquehanna Advisors Group, Inc. is the investment manager to Capital Ventures International, CVI Opportunities Fund I, LLLP and CVI Opportunities Fund II, LLLP and, as such, may exercise voting and dispositive power over the shares owned by Capital Ventures International, CVI Opportunities Fund I, LLLP and CVI Opportunities Fund II, LLLP, respectively.

CUSIP No: 704551100

(1) Susquehanna Securities, LLC and G1 Execution Services, LLC are affiliated independent broker-dealers which, together with Capital Ventures International, CVI Opportunities Fund I, LLLP, CVI Opportunities Fund II, LLLP, Susquehanna Advisors Group, Inc. and Susquehanna Fundamental Investments, LLC may be deemed a group.  For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons.  Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

(2) Susquehanna Advisors Group, Inc. is the investment manager to Capital Ventures International, CVI Opportunities Fund I, LLLP and CVI Opportunities Fund II, LLLP and, as such, may exercise voting and dispositive power over the shares owned by Capital Ventures International, CVI Opportunities Fund I, LLLP and CVI Opportunities Fund II, LLLP, respectively.

CUSIP No: 704551100

(1) Susquehanna Securities, LLC and G1 Execution Services, LLC are affiliated independent broker-dealers which, together with Capital Ventures International, CVI Opportunities Fund I, LLLP, CVI Opportunities Fund II, LLLP, Susquehanna Advisors Group, Inc. and Susquehanna Fundamental Investments, LLC may be deemed a group.  For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons.  Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

(2) Susquehanna Advisors Group, Inc. is the investment manager to Capital Ventures International, CVI Opportunities Fund I, LLLP and CVI Opportunities Fund II, LLLP and, as such, may exercise voting and dispositive power over the shares owned by Capital Ventures International, CVI Opportunities Fund I, LLLP and CVI Opportunities Fund II, LLLP, respectively.

CUSIP No: 704551100

(1) Susquehanna Securities, LLC and G1 Execution Services, LLC are affiliated independent broker-dealers which, together with Capital Ventures International, CVI Opportunities Fund I, LLLP, CVI Opportunities Fund II, LLLP, Susquehanna Advisors Group, Inc. and Susquehanna Fundamental Investments, LLC may be deemed a group.  For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons.  Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

CUSIP No: 704551100

(1) Susquehanna Securities, LLC and G1 Execution Services, LLC are affiliated independent broker-dealers which, together with Capital Ventures International, CVI Opportunities Fund I, LLLP, CVI Opportunities Fund II, LLLP, Susquehanna Advisors Group, Inc. and Susquehanna Fundamental Investments, LLC may be deemed a group.  For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons.  Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

(2) Susquehanna Advisors Group, Inc. is the investment manager to Capital Ventures International, CVI Opportunities Fund I, LLLP and CVI Opportunities Fund II, LLLP and, as such, may exercise voting and dispositive power over the shares owned by Capital Ventures International, CVI Opportunities Fund I, LLLP and CVI Opportunities Fund II, LLLP, respectively.

CUSIP No: 704551100

(1) Susquehanna Securities, LLC and G1 Execution Services, LLC are affiliated independent broker-dealers which, together with Capital Ventures International, CVI Opportunities Fund I, LLLP, CVI Opportunities Fund II, LLLP, Susquehanna Advisors Group, Inc. and Susquehanna Fundamental Investments, LLC may be deemed a group.  For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons.  Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

CUSIP No: 704551100

(1) Susquehanna Securities, LLC and G1 Execution Services, LLC are affiliated independent broker-dealers which, together with Capital Ventures International, CVI Opportunities Fund I, LLLP, CVI Opportunities Fund II, LLLP, Susquehanna Advisors Group, Inc. and Susquehanna Fundamental Investments, LLC may be deemed a group.  For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons.  Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

CUSIP No: 704551100

Item 1.

Peabody Energy Corporation (the “Company”)

701 Market Street, St. Louis, Missouri 63101

This statement is filed by the entities listed below, who are collectively referred to herein as “Reporting Persons,” with respect to the shares of common stock of the Company, $0.01 par value per share (the “Shares”).

The address of the principal business office of Capital Ventures International is:

P.O. Box 897

Windward 1, Regatta Office Park

West Bay Road

Grand Cayman, KY1-1103

Cayman Islands

The address of the principal business offices of each of CVI Opportunities Fund I, LLLP and CVI Opportunities Fund II, LLLP is:

251 Little Falls Drive

Wilmington, DE 19808

The address of the principal business office of G1 Execution Services, LLC is:

175 W. Jackson Blvd.

Suite 1700

Chicago, IL 60604

The address of the principal business office of each of Susquehanna Advisors Group, Inc., Susquehanna Fundamental Investments, LLC and Susquehanna Securities, LLC is:

401 E. City Avenue

Suite 220

Bala Cynwyd, PA 19004

Citizenship is set forth in Row 4 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.

CUSIP No: 704551100

Common stock, $0.01 par value per share

704551100

(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 association as defined in Section 3(b) of the Federal

Deposit Insurance Act (12 U.S.C. 1813);

(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) ¨ A non-U.S. institution in accordance with §240.13d-1(b)(1)(ii)(J);

(k) ¨ Group, in accordance with Rule 13d-1(b)(1)(ii)(K).

If filing as a non-U.S. institution in accordance with §240.13d-1(b)(1)(ii)(J), please specify the type of institution: _________

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

The information required by Items 4(a) – (c) is set forth in Rows 5 – 11 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.

The number of Shares reported as beneficially owned by Susquehanna Securities, LLC includes options to buy 287,400 Shares.

The Company’s Quarterly Report on Form 10-Q, filed with the United States Securities and Exchange Commission on November 9, 2020, indicates that there were 97,800,000 Shares outstanding as of November 2, 2020.

Susquehanna Advisors Group, Inc., which serves as the investment manager to Capital Ventures International, CVI Opportunities Fund I, LLLP and CVI Opportunities Fund II, LLLP, may be deemed to be the beneficial owner of all Shares owned by Capital Ventures International, CVI Opportunities Fund I, LLLP and CVI Opportunities Fund II, LLLP, respectively. Each of the Reporting Persons hereby disclaims any beneficial ownership of any such Shares, except for their pecuniary interest therein.

CUSIP No: 704551100

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following: ¨

Not applicable.

the Security Being Reported on by the Parent Holding Company or Control Person

Not applicable.

Not applicable.

Not applicable.

By signing below each of the undersigned certifies that, to the best of its knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

CUSIP No: 704551100

SIGNATURES

After reasonable inquiry and to the best of its knowledge and belief, each of the undersigned certifies that the information with respect to it set forth in this statement is true, complete, and correct.

Dated: February 10, 2021

CUSIP No: 704551100

EXHIBIT INDEX

*Previously Filed