Troendle August J. SC 13D/A Medpace / Troendle August J. ownership change

Troendle August J. SC 13D/AMedpace / Troendle August J. ownership change

United States

Securities and Exchange Commission

Washington, D.C. 20549

SCHEDULE 13D

(Rule 13d-101)

Information to be Included in Statements Filed Pursuant to § 240.13d-1(a) and Amendments Thereto Filed Pursuant to § 240.13d-2(a)

Under the Securities Exchange Act of 1934

(Amendment No. 19)*

Medpace Holdings, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

58506Q109

(CUSIP Number)

August J. Troendle

c/o Medpace Holdings, Inc.

5375 Medpace Way

Cincinnati, OH 45227

Tel: (513) 579-9911

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

December 1, 2023

(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. ☐

*	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 disclosures provided in a prior cover page.

The information required on 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).


1		NAMES OF REPORTING PERSONS August J. Troendle
2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ☐ (b) ☒
3		SEC USE ONLY
4		SOURCE OF FUNDS PF
5		Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e) ☐
6		CITIZENSHIP OR PLACE OF ORGANIZATION United States


1		NAMES OF REPORTING PERSONS Medpace Investors, LLC
2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ☐ (b) ☒
3		SEC USE ONLY
4		SOURCE OF FUNDS OO
5		Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e) ☐
6		CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

This Amendment No. 19 to the Schedule 13D (this “Amendment No. 19”) amends and supplements the Statement on Schedule 13D filed with the United States Securities and Exchange Commission on August 26, 2016, as amended by Amendment No. 1 filed on August 8, 2018, Amendment No. 2 filed on October 2, 2018, Amendment No. 3 filed on February 6, 2019, Amendment No. 4 filed on August 5, 2019, Amendment No. 5 filed on August 7, 2019, Amendment No. 6 filed on August 15, 2019, Amendment No. 7 filed on September 17, 2019, Amendment No. 8 filed on May 8, 2020, Amendment No. 9 filed on July 31, 2020, Amendment No. 10 filed on August 14, 2020, Amendment No. 11 filed on December 21, 2020, Amendment No. 12 filed on April 21, 2021, Amendment No. 13 filed on September 1, 2021, Amendment No. 14 filed on December 23, 2021, Amendment No. 15 filed on July 6, 2022, Amendment No. 16 filed on September 13, 2022, Amendment No. 17 filed September 21, 2022, and Amendment No. 18 filed September 22, 2023 (collectively, the “Statement”), relating to the common stock (the “Common Stock”), of Medpace Holdings, Inc., a Delaware corporation (the “Issuer”). Capitalized terms used herein without definition shall have the meaning set forth in the Statement.

Item 5. Interest in Securities of the Issuer

Items 5(a) - (b) of the Statement are amended and restated in their entirety as follows:

(a) - (b): See Items 7 – 13 of the cover pages above.

Item 5(c) of the Statement is amended and supplemented by inserting the following information:

(c): Medpace Investors, LLC (“MPI”) has sold shares in open market transactions executed pursuant to limit orders between November 14, 2023 and the date of this filing as follows:


Trade Date	Shares Sold		Price Per Share
11/14/2023		4,108	$	281.75	⁽¹⁾
11/14/2023		13,808	$	282.87	⁽²⁾
11/14/2023		4,191	$	283.60	⁽³⁾
11/14/2023		1,220	$	284.77	⁽⁴⁾
11/14/2023		1,133	$	285.70	⁽⁵⁾
11/14/2023		540	$	286.51	⁽⁶⁾
11/15/2023		11,907	$	282.63	⁽⁷⁾
11/15/2023		15,127	$	283.32	⁽⁸⁾
11/15/2023		2,382	$	284.54	⁽⁹⁾
11/15/2023		2,579	$	285.50	⁽¹⁰⁾
11/15/2023		1,005	$	286.23	⁽¹¹⁾
11/16/2023		4,529	$	280.55	⁽¹²⁾
11/16/2023		8,097	$	281.60	⁽¹³⁾
11/16/2023		3,666	$	282.58	⁽¹⁴⁾
11/16/2023		707	$	283.43	⁽¹⁵⁾
11/16/2023		1	$	284.11
11/17/2023		10,376	$	272.74	⁽¹⁶⁾
11/17/2023		23,249	$	273.49	⁽¹⁷⁾
11/17/2023		8,888	$	274.53	⁽¹⁸⁾
11/17/2023		5,395	$	275.35	⁽¹⁹⁾
11/17/2023		477	$	276.22	⁽²⁰⁾


11/17/2023	303	$	277.56	⁽²¹⁾
11/17/2023	1,051	$	278.51	⁽²²⁾
11/17/2023	261	$	279.26	⁽²³⁾
11/20/2023	4,148	$	272.52	⁽²⁴⁾
11/20/2023	4,705	$	273.52	⁽²⁵⁾
11/20/2023	9,250	$	274.53	⁽²⁶⁾
11/20/2023	8,083	$	275.52	⁽²⁷⁾
11/20/2023	18,362	$	276.52	⁽²⁸⁾
11/20/2023	5,452	$	277.17	⁽²⁹⁾
11/21/2023	5,360	$	276.39	⁽³⁰⁾
11/21/2023	11,410	$	277.22	⁽³¹⁾
11/21/2023	7,434	$	278.13	⁽³²⁾
11/21/2023	796	$	278.97	⁽³³⁾
11/22/2023	4,191	$	276.29	⁽³⁴⁾
11/22/2023	6,267	$	277.10	⁽³⁵⁾
11/22/2023	6,997	$	278.09	⁽³⁶⁾
11/22/2023	7,545	$	278.99	⁽³⁷⁾
11/27/2023	5,598	$	275.00	⁽³⁸⁾
11/27/2023	10,400	$	275.67	⁽³⁹⁾
11/27/2023	4,856	$	276.75	⁽⁴⁰⁾
11/27/2023	3,354	$	277.59	⁽⁴¹⁾
11/27/2023	428	$	278.80	⁽⁴²⁾
11/27/2023	364	$	279.43	⁽⁴³⁾
11/28/2023	6,897	$	272.28	⁽⁴⁴⁾
11/28/2023	4,456	$	273.49	⁽⁴⁵⁾
11/28/2023	7,386	$	274.42	⁽⁴⁶⁾
11/28/2023	3,094	$	275.16	⁽⁴⁷⁾
11/29/2023	2,507	$	272.71	⁽⁴⁸⁾
11/29/2023	660	$	273.49	⁽⁴⁹⁾
11/29/2023	13,674	$	272.33	⁽⁵⁰⁾
11/29/2023	3,373	$	273.28	⁽⁵¹⁾
11/29/2023	1,043	$	274.27	⁽⁵²⁾
11/30/2023	7,479	$	272.12	⁽⁵³⁾
11/30/2023	392	$	273.37	⁽⁵⁴⁾
12/1/2023	7,521	$	272.37	⁽⁵⁵⁾
12/1/2023	10,524	$	273.36	⁽⁵⁶⁾
12/1/2023	5,994	$	274.19	⁽⁵⁷⁾

(1)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $281.20 to $282.19. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(2)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $282.26 to $283.18. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(3)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $283.20 to $284.15. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(4)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $284.30 to $285.185. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(5)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $285.28 to $286.13. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(6)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $286.38 to $286.67. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(7)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $282.00 to $282.99. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(8)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $283.00 to $283.91. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(9)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $284.085 to $284.83. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(10)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $285.05 to $285.87. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(11)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $286.06 to $286.53. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(12)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $280.10 to $281.06. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(13)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $281.11 to $282.07. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(14)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $282.12 to $283.10. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(15)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $283.35 to $283.53. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(16)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $272.00 to $272.99. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(17)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $273.00 to $273.995. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(18)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $274.00 to $274.99. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(19)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $275.00 to $275.99. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(20)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $276.00 to $276.57. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(21)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $277.45 to $277.78. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(22)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $278.20 to $278.76. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(23)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $279.09 to $279.85. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(24)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $272.00 to $272.98. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(25)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $273.09 to $273.95. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(26)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $274.02 to $274.92. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(27)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $275.005 to $275.98. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(28)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $276.00 to $276.97. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(29)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $277.00 to $277.805. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(30)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $275.67 to $276.615. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(31)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $276.69 to $277.66. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(32)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $277.725 to $278.66. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(33)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $278.68 to $279.49. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(34)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $275.59 to $276.57. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(35)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $276.61 to $277.575. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(36)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $277.59 to $278.57. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(37)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $278.63 to $279.52. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(38)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $274.26 to $275.25. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(39)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $275.27 to $276.25. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(40)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $276.30 to $277.25. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(41)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $277.26 to $278.05. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(42)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $278.055 to $279.20. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(43)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $279.35 to $279.50. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(44)

(45)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $273.00 to $273.95. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(46)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $274.01 to $274.96. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(47)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $275.00 to $275.91. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(48)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $272.06 to $273.02. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(49)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $273.18 to $273.955. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(50)

(51)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $273.00 to $273.98. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(52)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $274.06 to $274.415. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(53)

(54)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $273.08 to $273.75. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(55)

(56)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $273.00 to $273.97. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

(57)

The reported price is a weighted average price. These shares were sold in multiple transactions ranging from $274.01 to $274.565. The Reporting Person undertakes to provide full pricing information to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission upon request.

Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer

Item 6 of the Statement is amended and supplemented as follows:

Except as set forth herein and in the Statement, none of the Reporting Persons has any contracts, arrangements, understandings or relationships (legal or otherwise) with any person with respect to any securities of the Issuer, including, but not limited to, any contracts, arrangements, understandings or relationships concerning the transfer or voting of such securities, finder’s fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or losses, or the giving or withholding of proxies.

Item 7. Materials to be Filed as Exhibits


Exhibit Number		Description

1		Joint Filing Agreement*

2		Registration Rights Agreement*

*	Filed in the Statement.

SIGNATURES

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: December 5, 2023

/s/ August J. Troendle

August J. Troendle

Medpace Investors, LLC

/s/ August J. Troendle

Name: August J. Troendle

Title: Sole Manager

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH

SOLE VOTING POWER

806,643

SHARED VOTING POWER

5,589,947

SOLE DISPOSITIVE POWER

806,643

SHARED DISPOSITIVE POWER

5,589,947