Brown Christopher D. — SEC Form 4 filings
SEC reporting owner CIK 1836988. 18 Form 4 filings on record with FilingPulse; latest filed 2026-09-04.
Transaction summary — filings shown
Covers all 18 filings on record, filed 2024-02-02 to 2026-09-04. 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): 19 legs across 13 filings — 221,724 shares, $1,854,044 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 24.
- Largest priced transaction: sale of 30,000 shares @ $10.58 ($317,400) in 908 Devices Inc., filed 2026-09-04.
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 |
|---|---|---|---|---|---|
| 908 Devices Inc. (MASS) | Director | 18 | — | 19 legs · 221,724 sh · $1,854,044 | 24 |
Form 4 filings — Brown Christopher D.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-04 | 4 | 908 Devices Inc. (MASS) | Sale (S): 30,000 @ $10.58 | EDGAR |
| 2026-08-12 | 4 | 908 Devices Inc. (MASS) | Sale (S): 9,442 @ $9.03 · Sale (S): 8,358 @ $9.23 | EDGAR |
| 2026-08-07 | 4 | 908 Devices Inc. (MASS) | Sale (S): 20,000 @ $8.49 | EDGAR |
| 2026-07-07 | 4 | 908 Devices Inc. (MASS) | Sale (S): 2,200 @ $9.02 | EDGAR |
| 2026-07-02 | 4 | 908 Devices Inc. (MASS) | Sale (S): 20,000 @ $8.84 | EDGAR |
| 2026-06-25 | 4 | 908 Devices Inc. (MASS) | Sale (S): 9,900 @ $9.04 | EDGAR |
| 2026-06-05 | 4 | 908 Devices Inc. (MASS) | Sale (S): 100 @ $9 | EDGAR |
| 2026-06-04 | 4 | 908 Devices Inc. (MASS) | Sale (S): 20,000 @ $8.73 | EDGAR |
| 2026-05-29 | 4 | 908 Devices Inc. (MASS) | Sale (S): 30,000 @ $9 | EDGAR |
| 2026-05-07 | 4 | 908 Devices Inc. (MASS) | Sale (S): 20,000 @ $7.23 | EDGAR |
| 2026-04-10 | 4 | 908 Devices Inc. (MASS) | Sale (S): 15,030 @ $7.05 · Sale (S): 7,392 @ $7.04 · Sale (S): 17,578 @ $7.07 | EDGAR |
| 2026-02-03 | 4 | 908 Devices Inc. (MASS) | Option exercise (M): 5,027 · Option exercise (M): 7,418 · Option exercise (M): 10,992 · Option exercise (M): 5,027 (derivative) @ $0 · Option exercise (M): 7,418 (derivative) @ $0 · Option exercise (M): 10,992 (derivative) @ $0 | EDGAR |
| 2025-02-04 | 4 | 908 Devices Inc. (MASS) | Option exercise (M): 5,027 · Option exercise (M): 7,418 · Option exercise (M): 10,991 · Sale (S): 1,667 @ $2.36 · Sale (S): 2,459 @ $2.34 · Sale (S): 3,641 @ $2.33 · +3 more | EDGAR |
| 2024-12-19 | 4 | 908 Devices Inc. (MASS) | Option exercise (M): 55,131 @ $1.58 · Option exercise (M): 55,131 (derivative) @ $0 | EDGAR |
| 2024-08-08 | 4 | 908 Devices Inc. (MASS) | Option exercise (M): 6,328 @ $1.58 · Option exercise (M): 6,328 (derivative) @ $0 | EDGAR |
| 2024-04-02 | 4 | 908 Devices Inc. (MASS) | Option exercise (M): 3,600 @ $1.75 · Option exercise (M): 3,600 (derivative) @ $0 | EDGAR |
| 2024-03-05 | 4 | 908 Devices Inc. (MASS) | Grant/award (A): 60,064 (derivative) @ $0 · Grant/award (A): 43,965 (derivative) @ $0 | EDGAR |
| 2024-02-02 | 4 | 908 Devices Inc. (MASS) | Option exercise (M): 5,028 · Option exercise (M): 7,418 · Sale (S): 1,599 @ $6.99 · Sale (S): 2,358 @ $7.02 · Option exercise (M): 5,028 (derivative) @ $0 · Option exercise (M): 7,418 (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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