| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| First Light Asset Management, LLC | 17% | +32% | $33,397,591 | +$8,120,952 | 6,184,739 | +32% | Mathew P. Arens | 31 Dec 2025 |
| AWM Investment Company, Inc. | 15% | $27,195,603 | 5,199,924 | AWM Investment Company, Inc. | 31 Mar 2025 | |||
| ARK Investment Management LLC | 5.4% | -32% | $17,115,043 | -$7,312,787 | 1,953,772 | -30% | ARK Investment Management LLC | 30 Sep 2025 |
| BlackRock, Inc. | 4.6% | $8,441,293 | 1,614,014 | BlackRock, Inc. | 31 Mar 2025 | |||
| VANGUARD GROUP INC | 3.8% | $6,927,313 | 1,324,534 | The Vanguard Group | 31 Dec 2024 | |||
| STATE STREET CORP | 1.6% | -80% | $3,219,988 | -$9,127,836 | 596,294 | -74% | STATE STREET CORPORATION | 31 Dec 2025 |
| AMERIPRISE FINANCIAL INC | 0% | $1,653 | 316 | Ameriprise Financial, Inc. | 31 Mar 2025 |
As of 31 Dec 2025, 115 institutional investors reported holding 26,160,172 shares of 908 Devices Inc. - Common Stock, $0.001 par value (MASS). This represents 72% of the company’s total 36,189,228 outstanding shares.
The largest institutional shareholders of 908 Devices Inc. - Common Stock, $0.001 par value (MASS) together control 63% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| AWM Investment Company, Inc. | 14% | 5,199,924 | 0% | 2.6% | $27,299,601 |
| First Light Asset Management, LLC | 13% | 4,836,186 | +93% | 1.9% | $25,389,977 |
| ARK Investment Management LLC | 5.5% | 1,985,986 | +1.6% | 0.07% | $10,426,428 |
| BlackRock, Inc. | 5% | 1,801,772 | +2.6% | 0% | $9,459,304 |
| VANGUARD GROUP INC | 4.1% | 1,470,864 | +3.5% | 0% | $7,722,037 |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 2.1% | 770,000 | +247% | 0.26% | $4,042,500 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.9% | 688,566 | +2.5% | 0% | $3,615,638 |
| First Eagle Investment Management, LLC | 1.7% | 623,883 | +3.3% | 0.01% | $3,275,386 |
| STATE STREET CORP | 1.6% | 596,294 | -74% | 0% | $3,130,544 |
| Tao Capital Management LP | 1.6% | 568,981 | 0% | 2.6% | $2,987,150 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 1.3% | 482,614 | -2.3% | 0.39% | $2,533,724 |
| MORGAN STANLEY | 1.2% | 440,485 | -23% | 0% | $2,312,546 |
| Prescott Group Capital Management, L.L.C. | 1% | 361,595 | +90% | 0.18% | $1,898,374 |
| Meros Investment Management, LP | 0.96% | 347,035 | +233% | 0.72% | $1,821,934 |
| Sumitomo Mitsui Trust Group, Inc. | 0.8% | 288,081 | -9.5% | 0% | $1,512,425 |
| Amova Asset Management Americas, Inc. | 0.8% | 288,081 | -9.5% | 0.02% | $1,509,544 |
| GM Advisory Group, LLC | 0.77% | 278,792 | -59% | 0.06% | $1,463,658 |
| CITADEL ADVISORS LLC | 0.73% | 264,373 | 0% | $1,387,959 | |
| DIMENSIONAL FUND ADVISORS LP | 0.68% | 246,614 | -24% | 0% | $1,294,615 |
| HighMark Wealth Management LLC | 0.67% | 241,000 | 0.52% | $1,265,250 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.67% | 240,929 | -0.08% | 0% | $1,264,877 |
| NORTHERN TRUST CORP | 0.64% | 230,294 | +11% | 0% | $1,209,044 |
| RENAISSANCE TECHNOLOGIES LLC | 0.61% | 222,100 | +6.1% | 0% | $1,166,025 |
| Squarepoint Ops LLC | 0.6% | 218,676 | +63% | 0% | $1,148,049 |
| GOLDMAN SACHS GROUP INC | 0.55% | 199,286 | +150% | 0% | $1,046,252 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 26,160,172 | $137,342,779 | +$6,718,566 | $5.25 | 115 |
| 2025 Q3 | 24,510,470 | $214,708,958 | +$1,943,620 | $8.76 | 105 |
| 2025 Q2 | 24,344,088 | $173,574,077 | +$27,411,966 | $7.13 | 99 |
| 2025 Q1 | 20,622,671 | $92,337,531 | +$24,299,562 | $4.48 | 87 |
| 2024 Q4 | 16,732,616 | $36,807,713 | -$5,746,610 | $2.20 | 80 |
| 2024 Q3 | 18,492,094 | $64,163,900 | -$5,463,890 | $3.47 | 85 |
| 2024 Q2 | 19,504,411 | $100,419,844 | -$10,111,290 | $5.15 | 89 |
| 2024 Q1 | 20,724,192 | $156,449,142 | -$10,708,147 | $7.55 | 74 |
| 2023 Q4 | 22,021,683 | $247,088,380 | +$9,984,843 | $11.22 | 79 |
| 2023 Q3 | 21,144,102 | $140,804,050 | -$774,506 | $6.66 | 82 |
| 2023 Q2 | 21,254,216 | $145,783,534 | -$5,340,434 | $6.86 | 81 |
| 2023 Q1 | 21,933,767 | $187,987,526 | +$2,625,118 | $8.60 | 81 |
| 2022 Q4 | 21,707,424 | $165,394,628 | -$8,272,665 | $7.62 | 87 |
| 2022 Q3 | 21,978,711 | $359,857,638 | +$13,535,482 | $16.45 | 77 |
| 2022 Q2 | 20,102,358 | $389,712,966 | +$11,438,719 | $20.59 | 73 |
| 2022 Q1 | 20,216,228 | $383,706,306 | +$13,800,448 | $19.01 | 79 |
| 2021 Q4 | 18,995,645 | $489,930,434 | +$76,545,064 | $25.87 | 85 |
| 2021 Q3 | 15,985,267 | $519,470,015 | +$123,404,885 | $32.52 | 83 |
| 2021 Q2 | 11,670,999 | $451,896,117 | +$112,113,592 | $38.75 | 73 |
| 2021 Q1 | 8,547,858 | $413,830,255 | +$12,162,543 | $48.50 | 71 |
| 2020 Q4 | 8,054,884 | $457,280,000 | +$457,279,993 | $56.95 | 70 |