MICHAEL G GREY
CIK 1240122 · Executive Chairman · last filed 2026-06-17
MICHAEL G GREY is an Executive Chairman who has filed 111 SEC Form 4 insider transactions across 11 companies since 2007. The most recent filing, for MIRM, was dated Jun 17, 2026. Across all open-market trades the lifetime net is −$24.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $12.6M 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.
$12.62M
11
111
-$24.67M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MIRM | Director | 93,750 | $98.82 | $9.26M | -$12.40M | 16 | 2026-06-17 |
| OKUR | Director | — | $3.95 | — | $0 | 3 | 2026-06-08 |
| SPRB | Executive Chairman | — | $46.52 | — | $0 | 8 | 2026-05-26 |
| Horizon Therapeutics Public Ltd Co (HZNP) Delisted | Director | 0 | $116.30 | $0 | -$2.60M | 25 | 2023-10-06 |
| OnKure Therapeutics, Inc. (RPHM) Delisted | Executive Chairman | 49,476 | $18.20 | $900.5K | $0 | 6 | 2023-07-27 |
| BMRN | Director | 47,840 | $70.08 | $3.35M | -$6.02M | 24 | 2021-03-09 |
| Mirati Therapeutics, Inc. (MRTX) Delisted | Director | 5,731 | $58.70 | $336.4K | -$3.64M | 12 | 2021-01-20 |
| ACHILLION PHARMACEUTICALS INC (ACHN) Delisted | Director | — | — | — | $0 | 1 | 2009-12-22 |
| ACHILLION PHARMACEUTICALS INC (TPTX) Delisted | Director | — | $76.01 | — | $0 | 3 | 2008-12-17 |
| IDM PHARMA, INC. (IDMI) Delisted | Director | — | — | — | $0 | 4 | 2008-12-12 |
| SGX PHARMACEUTICALS, INC. (SGXP) Delisted | President & CEO | 0 | — | — | $0 | 3 | 2008-08-21 |
Recent Filings
111 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-17 | MIRM | Grant (A) | — | $0 | EDGAR |
| 2026-06-08 | OKUR | Grant (A) | — | $0 | EDGAR |
| 2026-05-26 | SPRB | Grant (A) | — | $0 | EDGAR |
| 2025-12-23 | MIRM | Mixed | — | -$3.75M | EDGAR |
| 2025-12-19 | MIRM | Notice (144) | −50,000 | -$3.90M | EDGAR |
| 2025-12-15 | SPRB | Mixed | — | $0 | EDGAR |
| 2025-12-02 | MIRM | Mixed | — | -$3.55M | EDGAR |
| 2025-12-01 | MIRM | Notice (144) | −50,000 | -$3.70M | EDGAR |
| 2025-11-25 | MIRM | Mixed | — | -$3.35M | EDGAR |
| 2025-11-21 | MIRM | Notice (144) | −50,000 | -$3.50M | 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.