SEC Insider Transactions from Thompson Tamar.

Last updated: 2026-03-14 11:53 UTC | Total transactions: 24

Thompson Tamar has filed 24 insider transactions across 2 companies since June 2023.

Most recent transaction: a disposition of 13489 shares of Avidity Biosciences, Inc. ($RNAM) on February 27, 2026.

Activity breakdown: 0 open-market purchases and 1 sale.

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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
Feb. 27, 2026 Avidity Biosciences, Inc. $RNAM Thompson Tamar Not found D Stock Option (Right to Buy) 13489 $0.00 0.0000 150,675,742 100.00% 0.01%
Feb. 27, 2026 Avidity Biosciences, Inc. $RNAM Thompson Tamar Not found D Stock Option (Right to Buy) 22000 $0.00 0.0000 150,675,742 100.00% 0.01%
Feb. 27, 2026 Avidity Biosciences, Inc. $RNAM Thompson Tamar Not found D Stock Option (Right to Buy) 22000 $0.00 0.0000 150,675,742 100.00% 0.01%
Feb. 27, 2026 Avidity Biosciences, Inc. $RNAM Thompson Tamar Not found D Stock Option (Right to Buy) 10034 $0.00 0.0000 150,675,742 100.00% 0.01%
Feb. 27, 2026 Avidity Biosciences, Inc. $RNAM Thompson Tamar Not found D Common Stock 6692 $0.00 0.0000 150,675,742 100.00% 0.00%
Dec. 8, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Thompson Tamar Director M Common Stock, par value $0.001 per share 1413 $0.00 3,773.0000 127,201,954 59.87% 0.00%
Dec. 8, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Thompson Tamar Director M Restricted Stock Units 1413 $0.00 119,663.0000 127,201,954 1.17% 0.00%
Nov. 20, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Thompson Tamar Director A Restricted Stock Units 5468 $0.00 122,023.0000 127,201,954 4.69% 0.00%
Nov. 21, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Thompson Tamar Director M Common Stock, par value $0.001 per share 947 $0.00 2,360.0000 127,201,954 67.02% 0.00%
Nov. 20, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Thompson Tamar Director A Options to purchase common stock 18115 $0.00 116,555.0000 127,201,954 18.40% 0.01%
Nov. 21, 2025 CATALYST PHARMACEUTICALS, INC. $CPRX Thompson Tamar Director M Restricted Stock Units 947 $0.00 121,076.0000 127,201,954 0.78% 0.00%
June 10, 2025 Avidity Biosciences, Inc. $RNAM Thompson Tamar Director A Stock Option (Right to Buy) 10034 $0.00 10,034.0000 120,212,301 9999.99% 0.01%
June 10, 2025 Avidity Biosciences, Inc. $RNAM Thompson Tamar Director A Common Stock 6692 $0.00 6,692.0000 120,212,301 9999.99% 0.01%
Dec. 9, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Thompson Tamar Director M Common Stock, par value $0.001 per share 1413 $0.00 1,413.0000 125,407,279 9999.99% 0.00%
Dec. 9, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Thompson Tamar Director M Restricted Stock Units 1413 $0.00 98,440.0000 125,407,279 1.42% 0.00%
Nov. 21, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Thompson Tamar Director A Options to purchase common stock 23248 $0.00 97,012.0000 125,407,279 31.52% 0.02%
Nov. 21, 2024 CATALYST PHARMACEUTICALS, INC. $CPRX Thompson Tamar Director A Restricted Stock Units 2841 $0.00 99,853.0000 125,407,279 2.93% 0.00%
Oct. 7, 2024 Avidity Biosciences, Inc. $RNAM Thompson Tamar Director M Stock Option (Right to Buy) 30000 $0.00 0.0000 0 100.00% 0.00%
Oct. 7, 2024 Avidity Biosciences, Inc. $RNAM Thompson Tamar Director M Common Stock 30000 $27.63 30,000.0000 0 9999.99% 0.00%
Oct. 7, 2024 Avidity Biosciences, Inc. $RNAM Thompson Tamar Director S Common Stock 30000 $44.98 0.0000 0 100.00% 0.00%
June 13, 2024 Avidity Biosciences, Inc. $RNAM Thompson Tamar Director A Stock Option (Right to Buy) 13489 $0.00 13,490.0000 0 9999.99% 0.00%
Dec. 8, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Thompson Tamar Director A Options to purchase common stock 29524 $0.00 69,524.0000 111,375,631 73.81% 0.03%
Dec. 8, 2023 CATALYST PHARMACEUTICALS, INC. $CPRX Thompson Tamar Director A Restricted Stock Units 4240 $0.00 73,764.0000 111,375,631 6.10% 0.00%
June 15, 2023 Avidity Biosciences, Inc. $RNAM Thompson Tamar Director A Stock Option (Right to Buy) 22000 $0.00 22,000.0000 0 9999.99% 0.00%