David S Tierney
CIK 1292636 · Pres and CEO · last filed 2026-07-17
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
CPRX price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
6 HOLLYWOOD COURT, CN 1013
SOUTH PLAINFIELD, NJ 07080
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CATALYST PHARMACEUTICALS, INC. (CPRX) Delisted | Director | 0 | $31.49 | $0 | -$2.94M | 49 | 2026-07-17 |
| ZVRA | Director | 10,835 | $10.23 | $110.8K | $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 | 625,000 | — | — | $20.2K | 3 | 2019-06-14 |
| NEXM | Director | 17,863 | $1.64 | $29.3K | $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 2 of 10
96 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-08-23 | CATALYST PHARMACEUTICALS, INC. (CPRX) Delisted | Mixed | — | -$241.3K | EDGAR |
| 2024-08-21 | CATALYST PHARMACEUTICALS, INC. (CPRX) Delisted | Notice (144) | −15,000 | -$301.4K | EDGAR |
| 2024-04-10 | CATALYST PHARMACEUTICALS, INC. (CPRX) Delisted | Mixed | — | -$291.8K | EDGAR |
| 2024-04-08 | CATALYST PHARMACEUTICALS, INC. (CPRX) Delisted | Notice (144) | −25,000 | -$391.8K | EDGAR |
| 2024-02-16 | CATALYST PHARMACEUTICALS, INC. (CPRX) Delisted | Exer (M) | +4,000 | $0 | EDGAR |
| 2024-01-03 | CATALYST PHARMACEUTICALS, INC. (CPRX) Delisted | Exer (M) | +10,000 | $11.3K | EDGAR |
| 2023-12-29 | CATALYST PHARMACEUTICALS, INC. (CPRX) Delisted | Exer (M) | +1,333 | $0 | EDGAR |
| 2023-12-14 | CATALYST PHARMACEUTICALS, INC. (CPRX) Delisted | Mixed | — | -$609.8K | EDGAR |
| 2023-12-12 | CATALYST PHARMACEUTICALS, INC. (CPRX) Delisted | Notice (144) | −50,000 | -$666.3K | EDGAR |
| 2023-12-12 | CATALYST PHARMACEUTICALS, INC. (CPRX) Delisted | Grant (A) | — | $0 | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.