Updated Jul 16, 2026
Kenneweg John has filed 3 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $201K.

John Kenneweg is associated with 908 Devices Inc., a company known for its innovative analytical devices. Specific details about his role or contributions are not widely documented.
| Role | Insider |
|---|---|
| Notability | 10/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-11 | MASS | 908 Devices Inc. | S — Open-market sale | 18.3K | $8.11 | $148K |
| 2026-05-04 | MASS | 908 Devices Inc. | S — Open-market sale | 7.8K | $6.83 | $53K |
| 2026-05-04 | MASS | 908 Devices Inc. | M — Option exercise | 26.0K | — |
John Kenneweg is associated with 908 Devices Inc., a company known for its innovative analytical devices. Specific details about his role or contributions are not widely documented.…
3 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 2 open-market sales ($201K) 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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