David S Tierney

David S Tierney serves as Director at Catalyst Pharmaceuticals, Inc. (CPRX). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

3 trades

$45.1K

Total Sells

7 trades

$2.98M

Net Position

Net Seller

$2.93M

Companies Traded

2

CPRX, ZVRA

Active Period

Aug 2021 – Aug 2025

10 total trades

Most Recent

Sell CPRX

Aug 27, 2025 · $525.2K

David S Tierney's Insider Trading at Catalyst Pharmaceuticals, Inc. (CPRX)

Buys

0 · $0.00

Sells

7 · $2.98M

Total Shares Bought

0

Total Shares Sold

216,000

CPRX Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Aug 27, 2025	Sell	26,000	$20.20	$525.2K	0
Aug 21, 2024	Sell	15,000	$20.10	$301.5K	0
Apr 8, 2024	Sell	25,000	$15.68	$392.0K	0
Dec 12, 2023	Sell	50,000	$13.33	$666.3K	0
Apr 5, 2023	Sell	30,000	$16.83	$504.9K	0
Aug 22, 2022	Sell	20,000	$14.16	$283.2K	0
Aug 13, 2021	Sell	50,000	$6.08	$303.9K	0

David S Tierney's Insider Trading at Zevra Therapeutics, Inc. (ZVRA)

Buys

3 · $45.1K

Sells

0 · $0.00

Total Shares Bought

9,000

Total Shares Sold

0

ZVRA Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Mar 13, 2023	Buy	5,000	$4.15	$20.7K	10,835
May 26, 2022	Buy	2,000	$4.39	$8.8K	5,835
Nov 30, 2021	Buy	2,000	$7.79	$15.6K	3,835

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