CPRX · Insider Trading

Catalyst Pharmaceutical Inc.

Every open-market purchase and sale reported by CPRX officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
0
code P
Sales
0
code S
Reporting Insiders
3
current holders
CPRX — Recent Form 4 Transactions (latest 2026-07-17)
FiledInsiderRole TypeSharesValue
2026-07-17 Molly Harper Director D −3,694 −$116.36K
2026-07-17 Richard J Daly President and CEO D −271,266 −$8.54M
2026-07-17 William T. Andrews Chief Medical Officer D −2,309 −$72.73K
2026-07-17 Donald A Denkhaus Director D −498,773 −$15.71M
2026-07-17 Steve Miller Chief Op. & Scientific Officer D −1,093,803 −$34.45M
2026-07-17 Gregg Russo Chief HR Officer D −476 −$14.99K
2026-07-17 David S Tierney Director D −383,314 −$12.07M
2026-07-17 Preethi Sundaram Chief Strategy Officer D −54,804 −$1.73M
2026-07-17 Jeffrey Del Carmen Chief Commercial Officer D −14,337 −$451.62K
2026-07-17 Michael Wayne Kalb Chief Financial Officer D −13,665 −$430.45K
2026-07-17 Tamar Thompson Director D −3,773 −$118.85K
2026-07-17 Daniel J. Curran Director D −63,583 deriv. —
2026-07-17 Patrick J McEnany Director D −4,171,559 −$131.40M
2026-07-17 Brian Elsbernd Chief Legal Officer D −242,501 −$7.64M
2026-06-05 William T. Andrews Chief Medical Officer MIXED +2,309 —
2026-02-19 Gregg Russo Chief HR Officer MIXED +476 —
2026-01-06 Richard J Daly President and CEO MIXED +31,528 —
2026-01-06 Michael Wayne Kalb Executive Vice President & CFO MIXED +5,059 —
2025-12-30 Steve Miller Chief Op. & Scientific Officer M +14,000 —
2025-12-30 Patrick J McEnany Director MIXED +19,548 —
2025-12-30 Donald A Denkhaus Director M +1,334 —
2025-12-30 Molly Harper Director M +1,334 —
2025-12-30 David S Tierney Director M +1,334 —
2025-12-30 Preethi Sundaram Chief Strategy Officer MIXED +4,298 —
2025-12-30 Brian Elsbernd Chief Compliance/Legal Officer MIXED +4,044 —
2025-12-30 Richard J Daly President and CEO MIXED +810 —
2025-12-30 Jeffrey Del Carmen Chief Commercial Officer MIXED +4,828 —
2025-12-16 Molly Harper Director MIXED −6,746 −$506.32K
2025-12-10 Steve Miller Chief Op. & Scientific Officer M +11,873 —
2025-12-10 David S Tierney Director M +1,413 —
2025-12-10 Tamar Thompson Director M +1,413 —
2025-12-10 Brian Elsbernd Chief Compliance/Legal Officer MIXED +4,287 —
2025-12-10 Donald A Denkhaus Director M +1,413 —
2025-12-10 Molly Harper Director M +1,413 —
2025-12-10 Preethi Sundaram Chief Strategy Officer MIXED +5,186 —
2025-12-10 Jeffrey Del Carmen Chief Commercial Officer MIXED +5,547 —
2025-12-10 Patrick J McEnany Director M +3,534 —
2025-12-03 Patrick J McEnany Director G −135,000 —
2025-11-28 Jeffrey Del Carmen Chief Commercial Officer MIXED — −$210.01K
2025-11-24 William T. Andrews Chief Medical Officer A +128,428 deriv. —
2025-11-24 Daniel J. Curran Director A +23,583 deriv. —
2025-11-24 Molly Harper Director M +947 —
2025-11-24 Michael Wayne Kalb Executive Vice President & CFO MIXED +4,409 —
2025-11-24 Gregg Russo Chief HR Officer A +26,728 deriv. —
2025-11-24 David S Tierney Director M +947 —
2025-11-24 Brian Elsbernd Chief Compliance/Legal Officer MIXED +3,131 —
2025-11-24 Tamar Thompson Director M +947 —
2025-11-24 Preethi Sundaram Chief Strategy Officer MIXED +4,239 —
2025-11-24 Steve Miller Chief Op. & Scientific Officer M +8,267 —
2025-11-24 Donald A Denkhaus Director M +947 —
CPRX — Current Insider Holders
InsiderRole Shares HeldValue
Charles B O'Keeffe Director 732,470 $23.07M
Patrick J McEnany Director 145,922 $4.60M
Gary Ingenito Chief Med. & Reg. Officer 68,873 $2.17M
CPRX Insider Trading FAQ
Who are the insiders at CPRX?
3 officers, directors and 10%+ beneficial owners currently report holdings in CPRX via SEC Form 4.
Are CPRX insiders buying or selling?
Across the 50 most recent Form 4 filings for CPRX, 0 were open-market purchases (code P) and 0 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is CPRX insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent CPRX filing is dated 2026-07-17.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the CPRX quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.