Turner Michael S. — SEC Form 4 filings
SEC reporting owner CIK 1836524. 6 Form 4 filings on record with FilingPulse; latest filed 2026-09-17.
Transaction summary — filings shown
Covers all 6 filings on record, filed 2024-02-02 to 2026-09-17. 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): 10 legs across 4 filings — 66,013 shares, $674,648 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 14.
- Largest priced transaction: sale of 18,256 shares @ $16.24 ($296,419) in HawkEye 360, Inc., filed 2026-09-17.
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 |
|---|---|---|---|---|---|
| HawkEye 360, Inc. (HAWK) | Chief Legal Officer | 1 | — | 2 legs · 26,506 sh · $430,802 | — |
| 908 Devices Inc. (MASS) | Chief Legal & Admin Officer | 5 | — | 8 legs · 39,507 sh · $243,847 | 14 |
Form 4 filings — Turner Michael S.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-17 | 4 | HawkEye 360, Inc. (HAWK) | Sale (S): 8,250 @ $16.29 · Sale (S): 18,256 @ $16.24 | EDGAR |
| 2025-06-18 | 4 | 908 Devices Inc. (MASS) | Sale (S): 16,082 @ $7.51 · Sale (S): 7,148 @ $7.51 · Sale (S): 1,373 @ $7.50 | EDGAR |
| 2025-03-05 | 4 | 908 Devices Inc. (MASS) | Grant/award (A): 57,111 (derivative) @ $0 · Grant/award (A): 125,470 (derivative) @ $0 | EDGAR |
| 2025-02-04 | 4 | 908 Devices Inc. (MASS) | Option exercise (M): 4,427 · Option exercise (M): 9,909 · Option exercise (M): 10,834 · Sale (S): 1,703 @ $2.36 · Sale (S): 3,807 @ $2.32 · Sale (S): 4,162 @ $2.32 · +3 more | EDGAR |
| 2024-03-05 | 4 | 908 Devices Inc. (MASS) | Grant/award (A): 59,201 (derivative) @ $0 · Grant/award (A): 43,334 (derivative) @ $0 | EDGAR |
| 2024-02-02 | 4 | 908 Devices Inc. (MASS) | Option exercise (M): 4,427 · Option exercise (M): 9,910 · Sale (S): 1,616 @ $7.03 · Sale (S): 3,616 @ $6.97 · Option exercise (M): 4,427 (derivative) @ $0 · Option exercise (M): 9,910 (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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