Tierney David S (CIK 0001292636)

Latest company ownership

Shares held
381,514
Last filed at
Nov 24, 2025
Confidence Score
44.3
2025Q4
Confidence Score History
2012Q2 2025Q4
Shares held
10,835
Last filed at
Mar 13, 2023
Confidence Score
50.0
2025Q4
Confidence Score History
2015Q2 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Aug 27, 2025 Aug 28, 2025 CATALYST PHARMACEUTICALS, INC. Director Sell 20.0 -26,000 -6.41% ✗ $525.2K
Aug 21, 2024 Aug 23, 2024 CATALYST PHARMACEUTICALS, INC. Director Sell 20.0 -15,000 -4.12% ✗ $301.5K
Apr 8, 2024 Apr 10, 2024 CATALYST PHARMACEUTICALS, INC. Director Sell 20.0 -25,000 -6.69% ✗ $392K
Dec 12, 2023 Dec 14, 2023 CATALYST PHARMACEUTICALS, INC. Director Sell 20.0 -50,000 -13.04% ✗ $666.3K
Apr 5, 2023 Apr 7, 2023 CATALYST PHARMACEUTICALS, INC. Director Sell 20.0 -30,000 -8.73% ✗ $504.9K
Mar 9, 2023 Mar 13, 2023 ZEVRA THERAPEUTICS, INC. Director Buy 91.3 +5,000 85.69% ✗ $20.7K
Aug 22, 2022 Aug 23, 2022 CATALYST PHARMACEUTICALS, INC. Director Sell 20.0 -20,000 -6.09% ✗ $283.2K
May 25, 2022 May 26, 2022 ZEVRA THERAPEUTICS, INC. Director Buy 90.0 +2,000 52.15% ✗ $8.8K
Nov 30, 2021 Nov 30, 2021 ZEVRA THERAPEUTICS, INC. Director Buy 91.3 +2,000 108.99% ✗ $15.6K
Aug 13, 2021 Aug 17, 2021 CATALYST PHARMACEUTICALS, INC. Director Sell 20.0 -50,000 -14.01% ✗ $303.9K
Aug 18, 2020 Aug 18, 2020 ZEVRA THERAPEUTICS, INC. Director Buy 90.0 +10,000 51.62% ✗ $6.5K
Mar 20, 2017 Mar 21, 2017 ZEVRA THERAPEUTICS, INC. Director Buy 90.0 +1,000 20.00% ✗ $4.2K
Apr 21, 2015 May 12, 2015 ZEVRA THERAPEUTICS, INC. Director Buy 95.0 +5,000 100.00% ✗ $55K
Oct 23, 2013 Oct 25, 2013 CATALYST PHARMACEUTICALS, INC. Director Buy 83.8 +8,000 3.89% ✗ $16.2K
May 29, 2012 May 31, 2012 CATALYST PHARMACEUTICALS, INC. Director Buy 91.3 +20,000 10.79% ✗ $11.7K