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Insider Trading Arrangements | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 shares | Dec. 31, 2023 shares
Trading Arrangements, by Individual |  |
Material Terms of Trading Arrangement |  | During the three months ended December 31, 2023, no director or officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K, except as described in the table below:
| Action | Date | Trading Arrangement | Total Shares to be Purchased or Sold | Duration/Expiration Date
Rule 10b5-1* | Non-Rule 10b5-1**
Medpace Investors, LLC [1] | Adopt | November 14, 2023 [2] |  | X | Up to 25,000 shares to be sold | Good until cancelled
Medpace Investors, LLC [1] | Adopt | November 15, 2023 [3] |  | X | Up to 50,000 shares to be sold | Good until cancelled
Medpace Investors, LLC [1] | Adopt | November 17, 2023 [4] |  | X | Up to 50,000 shares to be sold | Good until cancelled
Medpace Investors, LLC [1] | Adopt | November 20, 2023 [5] |  | X | Up to 50,000 shares to be sold | Good until cancelled
Medpace Investors, LLC [1] | Adopt | November 21, 2023 [6] |  | X | Up to 50,000 shares to be sold | Good until cancelled
Medpace Investors, LLC [1] | Adopt | November 27, 2023 [7] |  | X | Up to 50,000 shares to be sold | Good until cancelled
Medpace Investors, LLC [1] | Adopt | November 29, 2023 [8] |  | X | Up to 50,000 shares to be sold | Good until cancelled
Susan E. Burwig, Executive Vice President, Operations | Adopt | December 14, 2023 [9] |  | X | Up to 12,400 shares to be sold | The earlier of until cancelled or 180 days from the placement of the limit order
* Intended to satisfy the affirmative defense of Rule 10b5-1(c). ** Not intended to satisfy the affirmative defense of Rule 10b5-1(c). [1] August J. Troendle, Chief Executive Officer and Chairman of the Board of the Company, is the sole manager and controlling unit holder of Medpace Investors, LLC (“MPI”) and has sole voting and investment control with respect to the securities held by MPI. Mr. Troendle may be deemed to indirectly beneficially own the securities of the Company held by MPI but disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein. [2] On November 14, 2023, MPI placed a limit order to sell up to 25,000 shares that were previously acquired through open market purchases. [3] On November 15, 2023, MPI placed a limit order to sell up to 50,000 shares that were previously acquired through open market purchases. [4] On November 17, 2023, MPI placed a limit order to sell up to 50,000 shares that were previously acquired through open market purchases. [5] On November 20, 2023, MPI placed a limit order to sell up to 50,000 shares that were previously acquired through open market purchases. [6] On November 21, 2023, MPI placed a limit order to sell up to 50,000 shares that were previously acquired through open market purchases. [7] On November 27, 2023, MPI placed a limit order to sell up to 50,000 shares that were previously acquired through open market purchases. [8] On November 29, 2023, MPI placed a limit order to sell up to 50,000 shares that were previously acquired through open market purchases. [9] On December 14, 2023, Ms. Burwig placed a limit order to sell up to 12,400 shares that were previously acquired through an exercise of stock options.
Rule 10b5-1 Arrangement Adopted | false |
Rule 10b5-1 Arrangement Terminated | false |
Non-Rule 10b5-1 Arrangement Terminated | false |
August J. Troendle [Member] |  |
Trading Arrangements, by Individual |  |
Name | August J. Troendle |
Title | Chief Executive Officer and Chairman of the Board of the Company |
Susan E. Burwig [Member] |  |
Trading Arrangements, by Individual |  |
Name | Susan E. Burwig |
Title | Executive Vice President, Operations |
Non-Rule 10b5-1 Arrangement Adopted | true |
Adoption Date | December 14, 2023 |
Aggregate Available | 12,400 | 12,400
Trading Arrangement With MPI Adopted On Nov 14, 2023 [Member] | August J. Troendle [Member] |  |
Trading Arrangements, by Individual |  |
Non-Rule 10b5-1 Arrangement Adopted | true |
Adoption Date | November 14, 2023 |
Aggregate Available | 25,000 | 25,000
Trading Arrangement With MPI Adopted On Nov 15, 2023 [Member] | August J. Troendle [Member] |  |
Trading Arrangements, by Individual |  |
Non-Rule 10b5-1 Arrangement Adopted | true |
Adoption Date | November 15, 2023 |
Aggregate Available | 50,000 | 50,000
Trading Arrangement With MPI Adopted On Nov 17, 2023 [Member] | August J. Troendle [Member] |  |
Trading Arrangements, by Individual |  |
Non-Rule 10b5-1 Arrangement Adopted | true |
Adoption Date | November 17, 2023 |
Aggregate Available | 50,000 | 50,000
Trading Arrangement With MPI Adopted On Nov 20, 2023 [Member] | August J. Troendle [Member] |  |
Trading Arrangements, by Individual |  |
Non-Rule 10b5-1 Arrangement Adopted | true |
Adoption Date | November 20, 2023 |
Aggregate Available | 50,000 | 50,000
Trading Arrangement With MPI Adopted On Nov 21, 2023 [Member] | August J. Troendle [Member] |  |
Trading Arrangements, by Individual |  |
Non-Rule 10b5-1 Arrangement Adopted | true |
Adoption Date | November 21, 2023 |
Aggregate Available | 50,000 | 50,000
Trading Arrangement With MPI Adopted On Nov 27, 2023 [Member] | August J. Troendle [Member] |  |
Trading Arrangements, by Individual |  |
Non-Rule 10b5-1 Arrangement Adopted | true |
Adoption Date | November 27, 2023 |
Aggregate Available | 50,000 | 50,000
Trading Arrangement With MPI Adopted On Nov 29, 2023 [Member] | August J. Troendle [Member] |  |
Trading Arrangements, by Individual |  |
Non-Rule 10b5-1 Arrangement Adopted | true |
Adoption Date | November 29, 2023 |
Aggregate Available | 50,000 | 50,000

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