Catalyst Pharmaceuticals, Inc. (CPRX) Insider Ownership

Historic Insider Ownership Trends

As of April 17, 2026, Catalyst Pharmaceuticals's top three insider holders are Steve Miller (Chief Op. Scientific Officer, 1.09Mn shares), Steve Miller (Chief Operating Officer, 761.72K shares), Charles B O'Keeffe (Director, 732.47K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Steve Miller Chief Op. Scientific Officer 1,093,803 0 30 Dec, 2025
Steve Miller Chief Operating Officer 761,724 0 19 Aug, 2022
Charles B O'Keeffe - 732,470 0 19 Feb, 2025
Charles B O'Keeffe - 616,391 0 27 Jan, 2023
Richard J Daly President And Ceo 271,266 0 06 Jan, 2026
Brian Elsbernd Chief Compliance/Legal Officer 242,501 0 30 Dec, 2025
Philip H Coelho - 239,553 0 06 Dec, 2021
Richard J Daly President And Ceo 226,794 0 28 Aug, 2025
Philip H Coelho - 204,887 0 05 May, 2023
Brian Elsbernd Chief Compliance/Legal Officer 124,433 0 28 Mar, 2024
Alicia Grande Vp, Treasurer And Cfo 90,557 0 12 Dec, 2023
Alicia Grande Vp, Treasurer And Cfo 55,813 0 29 Dec, 2023
Preethi Sundaram Chief Strategy Officer 54,804 0 30 Dec, 2025
Carmen Jeffrey Del Chief Commercial Officer 14,337 0 30 Dec, 2025
Michael Wayne Kalb Executive Vice President Cfo 13,665 0 06 Jan, 2026
Tamar Thompson - 3,773 0 10 Dec, 2025
Molly Harper - 3,694 0 30 Dec, 2025
Molly Harper - 2,360 0 16 Dec, 2025
Gregg Russo Chief Hr Officer 476 0 19 Feb, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
17 Feb, 2026 Gregg Russo Common Stock, par value $0.001 per share A 687 - 687 D M
17 Feb, 2026 Gregg Russo Common Stock, par value $0.001 per share D 211 - 476 D F
17 Feb, 2026 Gregg Russo Restricted Stock Units D 687 $0.00 71,786 D M
05 Jan, 2026 Michael Wayne Kalb Common Stock, par value $0.001 per share A 7,139 - 15,745 D M
05 Jan, 2026 Richard J Daly Common Stock, par value $0.001 per share A 42,105 - 281,843 D M
05 Jan, 2026 Michael Wayne Kalb Common Stock, par value $0.001 per share D 2,080 - 13,665 D F
05 Jan, 2026 Richard J Daly Common Stock, par value $0.001 per share D 10,577 - 271,266 D F
05 Jan, 2026 Richard J Daly Restricted Stock Units D 42,105 $0.00 2,618,539 D M
05 Jan, 2026 Michael Wayne Kalb Restricted Stock Units D 7,139 $0.00 632,903 D M
29 Dec, 2025 Preethi Sundaram Common Stock, par value $0.001 per share A 6,667 - 57,173 D M
29 Dec, 2025 Steve Miller Common stock, par value $0.001 per share A 14,000 - 1,093,803 D M
29 Dec, 2025 Brian Elsbernd Common Stock, par value $0.001 per share A 6,667 - 245,124 D M
29 Dec, 2025 Carmen Jeffrey Del Common Stock, par value $0.001 per share A 8,667 - 18,176 D M
29 Dec, 2025 Richard J Daly Common Stock, par value $0.001 per share A 1,334 - 240,262 D M
29 Dec, 2025 Molly Harper Common Stock, par value $0.001 per share A 1,334 - 3,694 D M
29 Dec, 2025 Richard J Daly Common Stock, par value $0.001 per share D 524 - 239,738 D F
29 Dec, 2025 Carmen Jeffrey Del Common Stock, par value $0.001 per share D 3,839 - 14,337 D F
29 Dec, 2025 Molly Harper Restricted Stock Units D 1,334 $0.00 127,163 D M
29 Dec, 2025 Preethi Sundaram Common Stock, par value $0.001 per share D 2,369 - 54,804 D F
29 Dec, 2025 Brian Elsbernd Common Stock, par value $0.001 per share D 2,623 - 242,501 D F