SEC Insider Transactions from Tierney David S.

Last updated: 2026-03-14 11:42 UTC | Total transactions: 44

Director Tierney David S, a Catalyst Pharmaceuticals ($CPRX) insider, sold shares once on the open market in the last year for a total of $525 thousand, with the most recent sale on August 27, 2025. This ranks him 6,322nd out of 11,678 insiders by sales value, well below the average of $8.6 million across about 6.4 transactions per insider. He made no open market purchases in the period.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Dec. 29, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common Stock, par value $0.001 per share 1334 $0.00 383,314.0000 127,201,954 0.35% 0.00%
Dec. 29, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Restricted Stock Units 1334 $0.00 178,163.0000 127,201,954 0.74% 0.00%
Dec. 8, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Restricted Stock Units 1413 $0.00 179,497.0000 127,201,954 0.78% 0.00%
Dec. 8, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common Stock, par value $0.001 per share 1413 $0.00 381,980.0000 127,201,954 0.37% 0.00%
Nov. 21, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Restricted Stock Units 947 $0.00 180,910.0000 127,201,954 0.52% 0.00%
Nov. 21, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common Stock, par value $0.001 per share 947 $0.00 380,567.0000 127,201,954 0.25% 0.00%
Nov. 20, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director A Options to purchase common stock 18115 $0.00 176,389.0000 127,201,954 11.45% 0.01%
Nov. 20, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director A Restricted Stock Units 5468 $0.00 181,857.0000 127,201,954 3.10% 0.00%
Aug. 27, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common Stock, par value $0.001 per share 50000 $2.24 405,620.0000 124,943,603 14.06% 0.04%
Aug. 27, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Options to purchase common stock 50000 $0.00 158,274.0000 124,943,603 24.01% 0.04%
Aug. 27, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director S Common Stock, par value $0.001 per share 26000 $20.20 379,620.0000 124,943,603 6.41% 0.02%
Feb. 14, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Restricted Stock Units 4000 $0.00 208,274.0000 124,943,603 1.88% 0.00%
Feb. 14, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common Stock, par value $0.001 per share 4000 $0.00 355,620.0000 124,943,603 1.14% 0.00%
Dec. 27, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Restricted Stock Units 1333 $0.00 212,274.0000 125,407,279 0.62% 0.00%
Dec. 27, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common Stock, par value $0.001 per share 1333 $0.00 351,620.0000 125,407,279 0.38% 0.00%
Dec. 9, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common Stock, par value $0.001 per share 1413 $0.00 350,287.0000 125,407,279 0.41% 0.00%
Dec. 9, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Restricted Stock Units 1413 $0.00 213,607.0000 125,407,279 0.66% 0.00%
Nov. 21, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director A Restricted Stock Units 2841 $0.00 215,020.0000 125,407,279 1.34% 0.00%
Nov. 21, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director A Options to purchase common stock 23248 $0.00 212,179.0000 125,407,279 12.31% 0.02%
Aug. 22, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Options to purchase common stock 15000 $0.00 188,931.0000 113,753,154 8.62% 0.01%
Aug. 21, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director S Common stock, par value $0.001 per share 15000 $20.10 348,874.0000 113,753,154 4.12% 0.01%
Aug. 21, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common stock, par value $0.001 per share 15000 $4.01 363,874.0000 113,753,154 4.30% 0.01%
April 8, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Options to purchase common stock 25000 $0.00 203,931.0000 113,753,154 13.97% 0.02%
April 8, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director S Common stock, par value $0.001 per share 25000 $15.68 348,874.0000 113,753,154 6.69% 0.02%
April 8, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common stock, par value $0.001 per share 25000 $4.01 373,874.0000 113,753,154 7.17% 0.02%
Feb. 15, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Restricted Stock Units 4000 $0.00 228,931.0000 113,753,154 1.72% 0.00%
Feb. 15, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common Stock, Par Value $0.001 per share 4000 $0.00 348,874.0000 113,753,154 1.16% 0.00%
Jan. 2, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Options to purchase common stock 10000 $0.00 232,931.0000 113,753,154 4.12% 0.01%
Jan. 2, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common Stock, Par Value $0.001 per share 10000 $1.13 344,874.0000 113,753,154 2.99% 0.01%
Dec. 27, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Restricted Stock Units 1333 $0.00 242,931.0000 111,375,631 0.55% 0.00%
Dec. 27, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common Stock, Par Value $0.001 per share 1333 $0.00 334,874.0000 111,375,631 0.40% 0.00%
Dec. 12, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director S Common stock, par value $0.001 per share 50000 $13.33 333,541.0000 111,375,631 13.04% 0.04%
Dec. 12, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Options to purchase common stock 50000 $0.00 244,264.0000 111,375,631 25.74% 0.04%
Dec. 12, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common stock, par value $0.001 per share 50000 $1.13 383,541.0000 111,375,631 14.99% 0.04%
Dec. 8, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director A Options to purchase common stock 29524 $0.00 290,024.0000 111,375,631 11.33% 0.03%
Dec. 8, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director A Restricted Stock Units 4240 $0.00 294,264.0000 111,375,631 1.46% 0.00%
May 11, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Options to purchase common stock 20000 $0.00 260,500.0000 111,375,631 7.13% 0.02%
May 11, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common stock, par value $0.001 per share 20000 $0.79 333,541.0000 111,375,631 6.38% 0.02%
April 5, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director S Common stock, par value $0.001 per share 30000 $16.83 313,541.0000 111,375,631 8.73% 0.03%
April 5, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common stock, par value $0.001 per share 30000 $0.79 343,541.0000 111,375,631 9.57% 0.03%
April 5, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Options to purchase common stock 30000 $0.00 280,500.0000 111,375,631 9.66% 0.03%
March 9, 2023 ZEVRA THERAPEUTICS, INC. $ZVRA Tierney David S Director P Common Stock 5000 $4.15 10,835.0000 0 85.69% 0.00%
Feb. 15, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Restricted Stock Units 4000 $0.00 310,500.0000 111,375,631 1.27% 0.00%
Feb. 15, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Tierney David S Director M Common Stock, Par Value $0.001 per share 4000 $0.00 313,541.0000 111,375,631 1.29% 0.00%