Insider Profile · SEC Form 4 Activity · Trailing 90 Days
Knopp Kevin J.
Over the trailing 90 days, Knopp Kevin J. (Other at 908 Devices Inc.) sold $578K of stock in MASS, per 5 SEC Form 4 transactions.
- Role
- Other
- Companies
- MASS
- Window
- Trailing 90 days · 5 transactions · CIK 1836523
- Net activity
- −$578K ($0 bought · $578K sold)
By Company (Trailing 90 Days)
| Symbol | Company | Txns | Bought | Sold | Net |
|---|---|---|---|---|---|
| MASS | 908 Devices Inc. | 5 | — | $578K | −$578K |
Transactions (5)
| Date | Symbol | Type | Shares | Value | Description |
|---|---|---|---|---|---|
| 2026-07-02 | MASS | Sell | 222 | $2K | Open market or private sale |
| 2026-06-26 | MASS | Sell | 2.8K | $25K | Open market or private sale |
| 2026-06-25 | MASS | Sell | 16.4K | $149K | Open market or private sale |
| 2026-06-24 | MASS | Sell | 40.5K | $370K | Open market or private sale |
| 2026-06-23 | MASS | Sell | 3.4K | $31K | Open market or private sale |
Activity shown covers the trailing 90 days of SEC Form 4 filings. "Buy" and "sell" follow the SEC acquired/disposed codes and include compensation events (grants, option exercises, tax withholding) unless noted. Historical fact, not investment advice.
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