MASS
908 Devices Inc.
29 disclosed insider filings · 6 distinct insiders · latest Oct 9, 2026
Total filings
29
6 insiders
Insider buys
0
$0
Insider sells
24
$4.7M
Grants & other
0
$0
All disclosed filings
Same-day tranches are grouped per insider - the Lots column shows how many individual executions a row covers; Price is the value-weighted average.
| Filed | Tx date | Insider | Type | Qty | Avg price | Value | Lots | Source |
|---|---|---|---|---|---|---|---|---|
| Oct 9, 2026 | Oct 7, 2026 | Christopher D Brown INSIDER | SELL | 30,000 | $11.89 | $357K | — | EDGAR |
| Oct 9, 2026 | Oct 7, 2026 | Christopher D Brown INSIDER | OTHER | 60,000 | $1.75 | $105K | — | EDGAR |
| Oct 8, 2026 | Oct 6, 2026 | Joseph H IV Griffith INSIDER | SELL | 5,000 | $13.03 | $65K | — | EDGAR |
| Oct 1, 2026 | Sep 29, 2026 | Awm Investment Company Inc 10% OWNER | SELL | 18,000 | $11.52 | $207K | — | EDGAR |
| Sep 25, 2026 | Sep 24, 2026 | Awm Investment Company Inc 10% OWNER | SELL | 24,000 | $11.36 | $273K | — | EDGAR |
| Sep 25, 2026 | Sep 23, 2026 | Awm Investment Company Inc 10% OWNER | SELL | 1,000 | $11.25 | $11K | — | EDGAR |
| Sep 17, 2026 | Sep 17, 2026 | John Kenneweg INSIDER | SELL | 5,257 | $10.22 | $54K | — | EDGAR |
| Sep 17, 2026 | Sep 17, 2026 | John Kenneweg INSIDER | OTHER | 5,257 | $0.96 | $5K | — | EDGAR |
| Sep 17, 2026 | Sep 16, 2026 | John Kenneweg INSIDER | OTHER | 21,399 | $0.96 | $21K | — | EDGAR |
| Sep 17, 2026 | Sep 16, 2026 | John Kenneweg INSIDER | SELL | 21,399 | $10.11 | $216K | — | EDGAR |
| Sep 17, 2026 | Sep 15, 2026 | John Kenneweg INSIDER | OTHER | 1,000 | $0.96 | $960 | — | EDGAR |
| Sep 17, 2026 | Sep 15, 2026 | John Kenneweg INSIDER | SELL | 1,000 | $10 | $10K | — | EDGAR |
| Sep 4, 2026 | Sep 2, 2026 | Christopher D Brown INSIDER | SELL | 30,000 | $10.58 | $317K | — | EDGAR |
| Aug 27, 2026 | Aug 25, 2026 | Joseph H IV Griffith INSIDER | SELL | 11,459 | $10.95 | $125K | — | EDGAR |
| Aug 24, 2026 | Aug 21, 2026 | Awm Investment Company Inc 10% OWNER | SELL | 41,578 | $10.61 | $441K | — | EDGAR |
| Aug 24, 2026 | Aug 20, 2026 | Awm Investment Company Inc 10% OWNER | SELL | 8,422 | $10.52 | $89K | — | EDGAR |
| Aug 17, 2026 | Aug 17, 2026 | Kevin J Knopp INSIDER | SELL | 20,000 | $10.35 | $207K | — | EDGAR |
| Aug 17, 2026 | Aug 13, 2026 | Kevin J Knopp INSIDER | SELL | 7,622 | $10.06 | $77K | — | EDGAR |
| Aug 12, 2026 | Aug 12, 2026 | Kevin J Knopp INSIDER | SELL | 2,747 | $10.07 | $28K | — | EDGAR |
| Aug 12, 2026 | Aug 11, 2026 | Kevin J Knopp INSIDER | SELL | 145,918 | $9.9 | $1.4M | 2 | EDGAR |
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