908 Devices Inc.
MASS- Exchange
- Nasdaq
- Industry
- Laboratory Analytical Instruments
- SEC CIK
- 0001555279
In the last 90 days, 908 Devices Inc. insiders filed 0 open-market purchases and 14 sales; 111 institutions reported holding it in 13F filings for Q2 2026, worth $252.2M in total; ARK Invest is the only superinvestor holding it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $4.27M in total
- 14
- 13F holdersQ2 2026, +3 vs. previous quarter
- 111
- 13F valueReported value at the end of Q2 2026
- $252.2M
- Superinvestors holdingAt the end of Q2 2026
- 1
Price chart
Superinvestors holding MASS, Q2 2026
1 superinvestor reports holding 908 Devices Inc. on Form 13F. Percentages are the stock's share of each portfolio.
Latest insider trades
Open-market purchases and sales by 908 Devices Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 25, 2026 (view filing)4:19 PM ET | Sep 23-24 | 2 days | AWM Investment Company, Inc.10% Owner | SSale | −25.0K | $11.36 | −$283.9K | −0.5%4.75M after | 2 lots |
| Sep 17, 2026 (view filing)5:27 PM ET | Sep 15-17 | 2 days | Kenneweg JohnSVP, Sales & Product Marketing | SSale | −27.7K | $10.13 | −$280.1K | −32.4%57.8K after | 3 lots10b5-1 |
| Sep 4, 2026 (view filing)4:15 PM ET | Sep 2 | 2 days | Brown Christopher D.Director | SSale | −30.0K | $10.58 | −$317.4K | −3.7%775.6K after | 10b5-1 |
| Aug 27, 2026 (view filing)4:55 PM ET | Aug 25 | 2 days | Griffith Joseph H. IVChief Financial Officer | SSale | −11.5K | $10.95 | −$125.5K | −8.6%121.5K after | 10b5-1 |
| Aug 24, 2026 (view filing)4:50 PM ET | Aug 20-21 | 4 days | AWM Investment Company, Inc.10% Owner | SSale | −50.0K | $10.60 | −$529.8K | −1.0%4.78M after | 2 lots |
| Aug 17, 2026 (view filing)5:30 PM ET | Aug 13-17 | 4 days | Knopp Kevin J.President and CEO | SSale | −27.6K | $10.27 | −$283.7K | −4.7%556.0K after | 2 lots10b5-1 |
| Aug 12, 2026 (view filing)5:05 PM ET | Aug 10-11 | 2 days | Brown Christopher D.Director | SSale | −17.8K | $9.12 | −$162.4K | −2.2%805.6K after | 2 lots10b5-1 |
| Aug 12, 2026 (view filing)5:05 PM ET | Aug 10-12 | 2 days | Knopp Kevin J.President and CEO | SSale | −149.0K | $9.90 | −$1.48M | −20.3%583.6K after | 4 lots10b5-1 |
| Aug 7, 2026 (view filing)4:50 PM ET | Aug 5 | 2 days | Brown Christopher D.Director | SSale | −20.0K | $8.49 | −$169.8K | −2.4%823.4K after | 10b5-1 |
| Aug 6, 2026 (view filing)4:26 PM ET | Aug 4 | 2 days | AWM Investment Company, Inc.10% Owner | SSale | −50.0K | $8.36 | −$417.8K | −1.0%4.83M after |
Top 10 13F holders, Q2 2026
The largest institutional positions in 908 Devices Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| First Light Asset Management, LLC | 6,282,804 | $54.7M | 3.32% | +210,241+3.5% | Added |
| AWM Investment Company, Inc. | 4,879,773 | $42.5M | 3.68% | −320,151−6.2% | Reduced |
| ARK Investment Management LLCSuperinvestorARK Invest | 2,027,920 | $17.6M | 0.11% | +81,235+4.2% | Added |
| BlackRock, Inc. | 1,944,236 | $16.9M | 0.00% | +176,920+10.0% | Added |
| First Eagle Investment Management, LLC | 1,859,970 | $16.2M | 0.01% | +1,056,364+131.5% | Added |
| Needham Investment Management LLC | 1,820,620 | $15.8M | 0.48% | +580,620+46.8% | Added |
| Vanguard Capital Management LLC | 1,291,570 | $11.2M | 0.00% | +172,334+15.4% | Added |
| Geode Capital Management, LLC | 761,797 | $6.63M | 0.00% | +66,342+9.5% | Added |
| Granahan Investment Management Inc | 692,092 | $6.02M | 0.21% | −2,978−0.4% | Reduced |
| State Street Corp | 606,560 | $5.28M | 0.00% | −19,332−3.1% | Reduced |