David S. Tierney

Insider Reports History

Location: South Plainfield, NJ
Signature: /s/ David S. Tierney
All insider transactions: Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by David S. Tierney:

Form 4 holding Director

CATALYST PHARMACEUTICALS, INC.

Security class: Common Stock, par value $0.001 per share
Shares / value: 383,314
Estimated value: $9,042,377
Report date: 29 Dec 2025
Price: $23.59
Ownership: Direct

Form 4 holding Director

CATALYST PHARMACEUTICALS, INC.

Security class: Restricted Stock Units
Shares / value: 178,163
Estimated value: $466,534
Report date: 29 Dec 2025
Price: $2.24
Ownership: Direct
Underlying class: Common Stock
Underlying amount

Form 4 holding Director

ZEVRA THERAPEUTICS, INC.

Security class: Common Stock
Shares / value: 10,835
Estimated value: $53,732
Report date: 09 Mar 2023
Price: $4.96
Ownership: Direct

Form 4 holding Director

CATALYST PHARMACEUTICALS, INC.

Security class: Options to purchase common stock
Shares / value: 176,389
Estimated value
Report date: 20 Nov 2025
Price
Ownership: Direct
Underlying class: Common Stock
Underlying amount

Insider Reports Filed by David S. Tierney

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 29 Dec 2025
Transactions: 2
Transaction value: $0
Filing time: 30 Dec 2025, 17:00
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 08 Dec 2025
Transactions: 2
Transaction value: $0
Filing time: 10 Dec 2025, 17:00
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 20 Nov 2025
Transactions: 4
Transaction value: $0
Filing time: 24 Nov 2025, 20:08
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 27 Aug 2025
Transactions: 3
Transaction value: -$413,200
Filing time: 28 Aug 2025, 17:00
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 14 Feb 2025
Transactions: 2
Transaction value: $0
Filing time: 19 Feb 2025, 17:00
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 27 Dec 2024
Transactions: 2
Transaction value: $0
Filing time: 31 Dec 2024, 16:30
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 09 Dec 2024
Transactions: 2
Transaction value: $0
Filing time: 11 Dec 2024, 17:00
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 21 Nov 2024
Transactions: 2
Transaction value: $0
Filing time: 25 Nov 2024, 17:01
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 21 Aug 2024
Transactions: 3
Transaction value: -$241,305
Filing time: 23 Aug 2024, 17:00
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 08 Apr 2024
Transactions: 3
Transaction value: -$291,750
Filing time: 10 Apr 2024, 17:15
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 15 Feb 2024
Transactions: 2
Transaction value: $0
Filing time: 16 Feb 2024, 17:01
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 02 Jan 2024
Transactions: 2
Transaction value: +$11,300
Filing time: 03 Jan 2024, 17:19
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 27 Dec 2023
Transactions: 2
Transaction value: $0
Filing time: 29 Dec 2023, 17:00
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 12 Dec 2023
Transactions: 3
Transaction value: -$609,750
Filing time: 14 Dec 2023, 17:00
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 08 Dec 2023
Transactions: 2
Transaction value: $0
Filing time: 12 Dec 2023, 17:00
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 11 May 2023
Transactions: 2
Transaction value: +$15,800
Filing time: 12 May 2023, 17:01
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 05 Apr 2023
Transactions: 3
Transaction value: -$481,200
Filing time: 07 Apr 2023, 17:00
Role: Director
Next action: Open filing details

4 ZVRA

ZEVRA THERAPEUTICS, INC.

Report period: 09 Mar 2023
Transactions: 1
Transaction value: +$20,732
Filing time: 13 Mar 2023, 07:54
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 15 Feb 2023
Transactions: 2
Transaction value: $0
Filing time: 17 Feb 2023, 16:00
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 27 Dec 2022
Transactions: 2
Transaction value: $0
Filing time: 29 Dec 2022, 15:50
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 06 Dec 2022
Transactions: 2
Transaction value: $0
Filing time: 08 Dec 2022, 16:05
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 22 Aug 2022
Transactions: 3
Transaction value: -$232,580
Filing time: 23 Aug 2022, 17:01
Role: Director
Next action: Open filing details

4 ZVRA

KEMPHARM, INC

Report period: 28 Jun 2022
Transactions: 1
Transaction value: $0
Filing time: 30 Jun 2022, 17:20
Role: Director
Next action: Open filing details

4 ZVRA

KEMPHARM, INC

Report period: 25 May 2022
Transactions: 1
Transaction value: +$8,780
Filing time: 26 May 2022, 20:30
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 20 May 2022
Transactions: 3
Transaction value: +$50,600
Filing time: 24 May 2022, 16:30
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 14 Feb 2022
Transactions: 1
Transaction value: $0
Filing time: 16 Feb 2022, 16:05
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 28 Dec 2021
Transactions: 1
Transaction value: $0
Filing time: 30 Dec 2021, 15:50
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 03 Dec 2021
Transactions: 2
Transaction value: $0
Filing time: 06 Dec 2021, 16:13
Role: Director
Next action: Open filing details

4 ZVRA

KEMPHARM, INC

Report period: 30 Nov 2021
Transactions: 1
Transaction value: +$15,578
Filing time: 30 Nov 2021, 15:10
Role: Director
Next action: Open filing details

4 CPRX

CATALYST PHARMACEUTICALS, INC.

Report period: 13 Aug 2021
Transactions: 3
Transaction value: -$147,895
Filing time: 17 Aug 2021, 16:48
Role: Director
Next action: Open filing details

4 ZVRA

KEMPHARM, INC

Report period: 17 Jun 2021
Transactions: 1
Transaction value: $0
Filing time: 21 Jun 2021, 08:36
Role: Director
Next action: Open filing details

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