Stone Adam Leo — SEC Form 4 filings
SEC reporting owner CIK 1727440. 9 Form 4 filings on record with FilingPulse; latest filed 2026-07-22.
Transaction summary — filings shown
Covers all 9 filings on record, filed 2024-02-20 to 2026-07-22. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 14.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| ARYA Sciences Acquisition Corp IV (ARYD) | Chief Executive Officer, Director, 10% owner | 1 | — | — | 3 |
| Freenome, Inc. (FRNM) | — | 2 | — | — | 3 |
| LianBio (LIAN) | Interim CEO, Director | 1 | — | — | 3 |
| Solid Biosciences Inc. (SLDB) | Director | 3 | — | — | 3 |
| Adagio Medical Holdings, Inc. (ADGM) | 10% owner | 1 | — | — | 1 |
| Immatics N.V. (IMTX) | Director | 1 | — | — | 1 |
Form 4 filings — Stone Adam Leo
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-07-22 | 4 | Freenome, Inc. (FRNM) | Conversion (C): 2,066,250 · Conversion (C): 2,066,250 (derivative) | EDGAR |
| 2026-06-18 | 4 | Immatics N.V. (IMTX) | Grant/award (A): 48,000 (derivative) @ $0 | EDGAR |
| 2026-06-11 | 4 | Solid Biosciences Inc. (SLDB) | Grant/award (A): 77,500 (derivative) @ $0 | EDGAR |
| 2025-06-13 | 4 | Solid Biosciences Inc. (SLDB) | Grant/award (A): 77,500 (derivative) @ $0 | EDGAR |
| 2024-11-19 | 4 | Solid Biosciences Inc. (SLDB) | Grant/award (A): 34,400 (derivative) @ $0 | EDGAR |
| 2024-10-01 | 4 | Adagio Medical Holdings, Inc. (ADGM) jointly with ARYA Sciences Holdings IV, ALTMAN MICHAEL SETH | Other (J): 3,501,600 | EDGAR |
| 2024-07-31 | 4 | ARYA Sciences Acquisition Corp IV (ARYD) | Disposition to issuer (D): 499,000 · Disposition to issuer (D): 1,000,000 (derivative) · Disposition to issuer (D): 2,647,500 (derivative) | EDGAR |
| 2024-06-13 | 4 | Perceptive Capital Solutions Corp (PCSC) | Grant/award (A): 286,250 @ $10 | EDGAR |
| 2024-02-20 | 4 | LianBio (LIAN) | Option exercise (M): 36,300 @ $2.52 · Tax withholding (F): 19,218 @ $4.76 · Option exercise (M): 36,300 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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