908 Devices Inc.
Total Trades
88
Buys
4
Sells
57
Largest Trade
N/A
Insiders
9
Institutional Funds
88
Inst. Value
$1M+
Activist Filings
35
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| McCallion Kevin J. | SVP | SELL | <$1K | 7 | $7.00 | Mar 4, 2026 |
| Knopp Kevin J. | President and CEO | SELL | $100K–$500K | 35K | $6.18 | Feb 4, 2026 |
| Knopp Kevin J. | President and CEO | EXERCISE | N/A | 108K | — | Feb 4, 2026 |
| Griffith Joseph H. IV | CFO | SELL | $100K–$500K | 23K | $6.18 | Feb 4, 2026 |
| Griffith Joseph H. IV | CFO | EXERCISE | N/A | 70K | — | Feb 4, 2026 |
| Griffith Joseph H. IV | CFO | SELL | $15K–$50K | 5K | $7.07 | Sep 23, 2025 |
| Turner Michael S. | Chief Legal & Admi… | SELL | $100K–$500K | 25K | $7.51 | Jun 18, 2025 |
| Griffith Joseph H. IV | CFO | SELL | $15K–$50K | 7K | $7.08 | Jun 6, 2025 |
| Knopp Kevin J. | President and CEO | BUY | $50K–$100K | 15K | $4.44 | May 19, 2025 |
| Spoto Mark | Director | BUY | $15K–$50K | 10K | $4.29 | May 15, 2025 |
| Knopp Kevin J. | President and CEO | BUY | $50K–$100K | 15K | $4.32 | May 14, 2025 |
| Griffith Joseph H. IV | CFO | SELL | $100K–$500K | 15K | $7.06 | Feb 3, 2024 |
| Griffith Joseph H. IV | CFO | EXERCISE | N/A | 15K | — | Feb 3, 2024 |
| Turner Michael S. | Chief Legal & Admi… | SELL | $15K–$50K | 5K | $6.99 | Feb 2, 2024 |
| Turner Michael S. | Chief Legal & Admi… | EXERCISE | N/A | 14K | — | Feb 2, 2024 |
| Knopp Kevin J. | President and CEO | SELL | $50K–$100K | 9K | $7.00 | Feb 2, 2024 |
| Knopp Kevin J. | President and CEO | EXERCISE | N/A | 25K | — | Feb 2, 2024 |
| Brown Christopher D. | Chief Product Offi… | EXERCISE | N/A | 12K | — | Feb 2, 2024 |
| Brown Christopher D. | Chief Product Offi… | SELL | $15K–$50K | 4K | $7.01 | Feb 2, 2024 |
| Griffith Joseph H. IV | CFO | SELL | $50K–$100K | 6K | $12.08 | Jan 2, 2024 |
| Griffith Joseph H. IV | CFO | SELL | $50K–$100K | 6K | $9.08 | Dec 21, 2023 |
| Brown Christopher D. | Chief Product Offi… | SELL | $100K–$500K | 20K | $9.10 | Dec 21, 2023 |
| Brown Christopher D. | Chief Product Offi… | SELL | $15K–$50K | 4K | $10.03 | Jun 9, 2023 |
| Brown Christopher D. | CTO | SELL | $100K–$500K | 10K | $10.02 | May 25, 2023 |
| Knopp Kevin J. | President and CEO | SELL | $500K+ | 60K | $10.12 | May 25, 2023 |
| Knopp Kevin J. | President and CEO | SELL | $100K–$500K | 20K | $10.25 | Feb 17, 2023 |
| Turner Michael S. | VP, General Counsel | EXERCISE | N/A | 4K | — | Feb 3, 2023 |
| Turner Michael S. | VP, General Counsel | SELL | $15K–$50K | 4K | $9.72 | Feb 3, 2023 |
| Knopp Kevin J. | President and CEO | EXERCISE | N/A | 11K | — | Feb 3, 2023 |
| Knopp Kevin J. | President and CEO | SELL | $100K–$500K | 44K | $10.40 | Feb 3, 2023 |
| Griffith Joseph H. IV | CFO | EXERCISE | N/A | 5K | — | Feb 3, 2023 |
| Griffith Joseph H. IV | CFO | SELL | $15K–$50K | 5K | $9.72 | Feb 3, 2023 |
| Fitzpatrick Maura | VP | EXERCISE | N/A | 4K | — | Feb 3, 2023 |
| Fitzpatrick Maura | VP | SELL | $1K–$15K | 2K | $9.20 | Feb 3, 2023 |
| Brown Christopher D. | CTO | EXERCISE | N/A | 5K | — | Feb 3, 2023 |
| Brown Christopher D. | CTO | SELL | $100K–$500K | 12K | $9.91 | Feb 3, 2023 |
| Spoto Mark | Director | BUY | $15K–$50K | 3K | $9.65 | Nov 23, 2022 |
| Knopp Kevin J. | President and CEO | SELL | $100K–$500K | 20K | $11.04 | Nov 17, 2022 |
| Knopp Kevin J. | President and CEO | SELL | $100K–$500K | 30K | $15.08 | Oct 19, 2022 |
| Knopp Kevin J. | President and CEO | SELL | $500K+ | 30K | $16.94 | Sep 19, 2022 |
| Brown Christopher D. | CTO | SELL | $100K–$500K | 20K | $19.58 | Sep 14, 2022 |
| Turner Michael S. | VP, General Counsel | EXERCISE | $15K–$50K | 5K | $7.91 | Aug 18, 2022 |
| Turner Michael S. | VP, General Counsel | SELL | $50K–$100K | 5K | $18.15 | Aug 18, 2022 |
| Knopp Kevin J. | President and CEO | SELL | $500K+ | 30K | $19.27 | Aug 17, 2022 |
| Knopp Kevin J. | President and CEO | SELL | $500K+ | 26K | $25.32 | Aug 9, 2022 |
| Griffith Joseph H. IV | CFO | EXERCISE | $1K–$15K | 13K | $0.96 | Aug 5, 2022 |
| Griffith Joseph H. IV | CFO | SELL | $100K–$500K | 13K | $24.39 | Aug 5, 2022 |
| Turner Michael S. | VP, General Counsel | EXERCISE | $50K–$100K | 10K | $7.91 | Aug 3, 2022 |
| Turner Michael S. | VP, General Counsel | SELL | $100K–$500K | 10K | $23.96 | Aug 3, 2022 |
| Knopp Kevin J. | President and CEO | SELL | $500K+ | 38K | $22.28 | Aug 1, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 88 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| AWM Investment Company, Inc. | 5.2M | $1M+ | SH |
| First Light Asset Management, LLC | 4.8M | $1M+ | SH |
| ARK Investment Management LLC | 2.0M | $1M+ | SH |
| First Eagle Investment Management, LLC | 624K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 600K | $1M+ | SH |
| STATE STREET CORP | 596K | $1M+ | SH |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 483K | $1M+ | SH |
| PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. | 362K | $1M+ | SH |
| Sumitomo Mitsui Trust Group, Inc. | 288K | $1M+ | SH |
| Amova Asset Management Americas, Inc. | 288K | $1M+ | SH |
| GM Advisory Group, LLC | 279K | $1M+ | SH |
| HighMark Wealth Management LLC | 241K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 241K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 231K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 222K | $1M+ | SH |
| Squarepoint Ops LLC | 219K | $1M+ | SH |
| MARSHALL WACE, LLP | 191K | $1M+ | SH |
| Legato Capital Management LLC | 156K | $500K+ | SH |
| HRT FINANCIAL LP | 155K | $500K+ | SH |
| Mitsubishi UFJ Asset Management Co., Ltd. | 141K | $500K+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
First Light Asset Management, LLC
SC 13G/A · Feb 17, 2026
16.5%
6.0M shares
SC 13G · Feb 9, 2026
0.4%
135K shares
First Light Asset Management, LLC
SC 13G/A · Dec 5, 2025
12.9%
4.7M shares
First Light Asset Management, LLC
SC 13G · Nov 14, 2025
9.8%
3.6M shares
SC 13G/A · Nov 4, 2025
5.4%
2.0M shares
SC 13G · Aug 11, 2025
5.1%
1.8M shares
SC 13G/A · May 15, 2025
0.0%
316 shares
SC 13G/A · Apr 25, 2025
4.6%
1.6M shares
SC 13G · Apr 7, 2025
14.7%
5.2M shares
SC 13G/A · Feb 14, 2025
8.0%
2.8M shares
SC 13G/A · Jan 31, 2025
3.8%
1.3M shares
SC 13G/A · Jan 11, 2025
9.3%
3.2M shares
(S) ARCH Venture Fund VII, L.P.
SC 13G/A · Nov 14, 2024
16.4%
5.7M shares
Granahan Investment Management LLC
SC 13G/A · Nov 14, 2024
2.5%
861K shares
SC 13G · Nov 8, 2024
5.4%
1.9M shares
SC 13G · Oct 24, 2024
5.4%
1.9M shares
SC 13G/A · Jul 8, 2024
4.9%
1.7M shares
Eventide Asset Management, LLC
SC 13G/A · Feb 14, 2024
4.4%
1.4M shares
Ameriprise Financial, Inc. IRS No. 13-3180631
SC 13G · Feb 14, 2024
5.8%
1.9M shares
Granahan Investment Management LLC
SC 13G · Feb 14, 2024
6.3%
2.0M shares
(S) ARCH Venture Fund VII, L.P.
SC 13G/A · Feb 9, 2024
17.7%
5.7M shares
SC 13G/A · Jan 31, 2024
5.5%
1.8M shares
SC 13G/A · Jan 29, 2024
13.4%
4.3M shares
Alger Associates, Inc. 13-3017981
SC 13G/A · Nov 13, 2023
3.8%
1.2M shares
Alger Associates, Inc. 13-3017981
SC 13G/A · Feb 14, 2023
8.8%
2.8M shares
Eventide Asset Management, LLC
SC 13G · Feb 14, 2023
7.0%
2.2M shares
(S) ARCH Venture Fund VII, L.P.
SC 13G/A · Feb 13, 2023
18.1%
5.7M shares
SC 13G/A · Feb 10, 2023
11.6%
3.7M shares
SC 13G/A · Feb 1, 2023
5.6%
1.8M shares
Alger Associates, Inc. 13-3017981
SC 13G · Oct 11, 2022
10.9%
3.5M shares
SC 13G · Jul 8, 2022
7.4%
2.3M shares
SC 13G/A · Feb 10, 2022
0.0%
0 shares
SC 13G/A · Feb 10, 2022
0.0%
0 shares
SC 13G/A · Jan 27, 2022
13.3%
3.7M shares
SC 13G/A · Jan 26, 2022
13.3%
3.7M shares