MARK L FIRST
CIK 1256578 · Non-Employee Director · last filed 2026-06-11
MARK L FIRST is a Non-Employee Director who has filed 44 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing, for ADUS, was dated Jun 11, 2026. Across all open-market trades the lifetime net is −$421.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.4M across reported positions.
"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.
$1.41M
3
44
-$421.04M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ADUS | Director | 15,070 | $93.28 | $1.41M | -$296.13M | 27 | 2026-06-11 |
| PetIQ, Inc. (PETQ) Delisted | Director | 0 | $30.98 | $0 | -$121.09M | 15 | 2024-10-28 |
| VERASUN ENERGY CORP (VSE) Delisted | Director | 4,635,620 | — | — | -$3.81M | 2 | 2007-05-25 |
Recent Filings
44 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-11 | ADUS | Grant (A) | +1,449 | $0 | EDGAR |
| 2025-06-20 | ADUS | Grant (A) | +1,172 | $0 | EDGAR |
| 2024-10-28 | PetIQ, Inc. (PETQ) Delisted | Disp (D) | −1,991,234 | $0 | EDGAR |
| 2024-09-09 | ADUS | Gift (G) | −7,942 | $0 | EDGAR |
| 2024-06-25 | PetIQ, Inc. (PETQ) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-06-24 | PetIQ, Inc. (PETQ) Delisted | Exer (M) | +6,077 | $0 | EDGAR |
| 2024-06-13 | ADUS | Grant (A) | +1,013 | $0 | EDGAR |
| 2023-06-26 | PetIQ, Inc. (PETQ) Delisted | Exer (M) | +5,364 | $0 | EDGAR |
| 2023-06-23 | PetIQ, Inc. (PETQ) Delisted | Grant (A) | — | $0 | EDGAR |
| 2023-06-16 | ADUS | Grant (A) | +1,289 | $0 | EDGAR |