| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Over the past 90 days, insiders at 908 Devices Inc. (MASS) have been net sellers, shedding 461,550 shares worth roughly $4.7M on balance. In the past 30 days, 0 insiders bought and 3 sold. Sales set the recent tone.
All 3 insiders who sold still hold shares after their sales. MASS sits in the Health Care Equipment & Supplies industry within the Health Care sector, so this activity is best read against the sector's broader insider trend.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| 10% | 4.74M | $54.56M | -18,000 | |
| Dir | 805.6K | $9.58M | -30,000 | |
| CEO | 556.0K | $5.75M | - | |
| Dir | 165.4K | - | - | |
| CFO | 116.5K | $1.52M | -5,000 |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Aug 11, 2026 | Brown Christopher D.83 | Director | Sell10b5-1 | 17,800 | $9.12 | $162,405.60 | -2.2% | - | - | |
| Aug 5, 2026 | Brown Christopher D.83 | Director | Sell10b5-1 | 20,000 | $8.49 | $169,800.00 | -2.4% | - | - | |
| Aug 4, 2026 | Awm Investment Company, Inc.73 | 10% Owner | Sell | 50,000 | $8.36 | $417,765.00 | -1.0% | - | - | |
| Jul 2, 2026 | Brown Christopher D.83 | Director | Sell10b5-1 | 2,200 | $9.02 | $19,844.00 | -0.3% | +42.0% | - | |
| Jul 2, 2026 | Knopp Kevin J.79 | President and CEO | Sell10b5-1 | 222 | $9.07 | $2,013.54 | - | +42.0% | - | |
| Jun 30, 2026 | Brown Christopher D.83 | Director | Sell10b5-1 | 20,000 | $8.84 | $176,800.00 | -2.3% | +34.0% | - | |
| Jun 26, 2026 | Knopp Kevin J.79 | President and CEO | Sell10b5-1 | 2,798 | $9.09 | $25,433.82 | -0.4% | +31.2% | - | |
| Jun 25, 2026 | Knopp Kevin J.79 | President and CEO | Sell10b5-1 | 60,345 | $9.12 | $550,624.02 | -7.6% | +21.8% | - | |
| Jun 23, 2026 | Brown Christopher D.83 | Director | Sell10b5-1 | 9,900 | $9.04 | $89,496.00 | -1.1% | +24.6% | - | |
| Jun 23, 2026 | Awm Investment Company, Inc.73 | 10% Owner | Sell | 7,718 | $9.00 | $69,427.83 | -0.2% | +24.6% | - |