David S Tierney

CIK 1292636 · Pres and CEO · last filed 2025-12-30

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$12.82M

Companies

7

Total Filings

91

Lifetime Open-Market Net

-$2.81M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
CPRX Director 383,314 $31.36 $12.02M -$2.94M 48 2025-12-30
ZVRA Director 10,835 $12.65 $137.1K $20.7K 1 2023-03-13
ZEVRA THERAPEUTICS, INC. (KMPH) Delisted Director 5,835 $5.81 $33.9K $90.1K 15 2022-06-30
Timber Pharmaceuticals, Inc. (BPMX) Delisted Pres and CEO 7,500,000 $20.2K 3 2019-06-14
NEXM Director 267,948 $2.49 $667.2K $0 12 2009-10-19
BIOJECT MEDICAL TECHNOLOGIES INC (BJCT) Delisted Director 6,000 $0 6 2008-06-16
Valera Pharmaceuticals Inc (VLRX) Delisted President and CEO 0 $0 2 2007-04-18

Recent Filings · Page 3 of 10

91 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2022-12-08 CPRX Exer (M) +1,334 $0 EDGAR
2022-08-23 CPRX Mixed -$232.6K EDGAR
2022-06-30 ZEVRA THERAPEUTICS, INC. (KMPH) Delisted Grant (A) $0 EDGAR
2022-05-26 ZEVRA THERAPEUTICS, INC. (KMPH) Delisted Buy (P) +2,000 $8.8K EDGAR
2022-05-24 CPRX Mixed $50.6K EDGAR
2022-02-16 CPRX Grant (A) $0 EDGAR
2021-12-30 CPRX Grant (A) $0 EDGAR
2021-12-06 CPRX Exer (M) +1,333 $0 EDGAR
2021-11-30 ZEVRA THERAPEUTICS, INC. (KMPH) Delisted Buy (P) +2,000 $15.6K EDGAR
2021-08-17 CPRX Mixed -$147.9K EDGAR
Showing 2130 of 91
Page 3 of 10
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.