Updated Jul 16, 2026
Brown Christopher D. has filed 7 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $1.16M.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-07 | MASS | 908 Devices Inc. | S — Open-market sale | 2.2K | $9.02 | $20K |
| 2026-07-02 | MASS | 908 Devices Inc. | S — Open-market sale | 20.0K | $8.84 | $177K |
| 2026-06-25 | MASS | 908 Devices Inc. | S — Open-market sale | 9.9K | $9.04 | $89K |
| 2026-06-05 | MASS | 908 Devices Inc. | S — Open-market sale | 100 | $9.00 | $900 |
| 2026-06-04 | MASS | 908 Devices Inc. | S — Open-market sale | 20.0K | $8.73 | $175K |
| 2026-05-29 | MASS | 908 Devices Inc. | S — Open-market sale | 30.0K | $9.00 | $270K |
| 2026-05-07 | MASS | 908 Devices Inc. | S — Open-market sale | 20.0K | $7.23 | $145K |
| 2026-04-10 | MASS | 908 Devices Inc. | S — Open-market sale [10b5-1] | 17.6K | $7.07 | $124K |
| 2026-04-10 | MASS | 908 Devices Inc. | S — Open-market sale [10b5-1] | 7.4K | $7.04 | $52K |
| 2026-04-10 | MASS | 908 Devices Inc. | S — Open-market sale [10b5-1] | 15.0K | $7.05 | $106K |
| 2026-02-04 | MASS | 908 Devices Inc. | M — Option exercise | 11.0K | — | |
| 2026-02-04 | MASS | 908 Devices Inc. | M — Option exercise | 7.4K | — | |
| 2026-02-04 | MASS | 908 Devices Inc. | M — Option exercise | 5.0K | — | |
| 2024-12-19 | MASS | 908 Devices Inc. | M — Option exercise | 55.1K | $1.58 | $87K |
Brown Christopher D. is a corporate insider — currently tracked as Insider of 908 Devices Inc. (MASS). InsiderAlpha tracks every SEC Form 4 filing in real time.
7 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 10 open-market sales ($1.16M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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