Michael G Grey
CIK 1240122 · Executive Chairman · last filed 2026-08-11
"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.
MIRM 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
10505 ROSELLE STREET
SAN DIEGO, CA 92121
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| OKUR | Director | — | $3.19 | — | $0 | 4 | 2026-08-11 |
| MIRM | Director | 93,750 | $93.18 | $8.74M | -$12.40M | 16 | 2026-06-17 |
| SPRB | Executive Chairman | — | $49.34 | — | $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 | $57.18 | $2.74M | -$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 · Page 10 of 12
112 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2012-02-24 | BMRN | Mixed | +60,000 | $1.57M | EDGAR |
| 2011-10-03 | Horizon Therapeutics Public Ltd Co (HZNP) Delisted | Grant (A) | — | $0 | EDGAR |
| 2011-05-16 | BMRN | Grant (A) | +2,500 | $0 | EDGAR |
| 2010-05-14 | BMRN | Grant (A) | +2,500 | $0 | EDGAR |
| 2009-12-22 | ACHILLION PHARMACEUTICALS INC (ACHN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2009-05-27 | BMRN | Grant (A) | +2,500 | $0 | EDGAR |
| 2009-05-14 | BMRN | Grant (A) | +2,500 | $0 | EDGAR |
| 2008-12-17 | ACHILLION PHARMACEUTICALS INC (TPTX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2008-12-12 | IDM PHARMA, INC. (IDMI) Delisted | Grant (A) | — | $0 | EDGAR |
| 2008-08-21 | SGX PHARMACEUTICALS, INC. (SGXP) Delisted | Disp (D) | −100,000 | -$300.0K | 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.