908 Devices Inc. 13F holders
111 funds reported a position in 908 Devices Inc. in their 13F for the quarter ended 30 June 2026, together 29.0 million shares worth $252.2 million. Against the quarter before, 13 opened a position, 42 added, 35 trimmed and 11 sold out; together they bought a net 275,277 shares. The largest holders: First Light Asset Management, LLC, AWM Investment Company, Inc. and ARK Investment Management LLC.
Funds holding111-1 on Q1 2026
Shares they held29.0Mworth $252.2 million
Net bought on the quarter275,277 sharesabout $2.4 million at the funds' values
Funds buying to selling55 to 46opened or added, to cut or sold
Opened 13Added 42Held 20Trimmed 35Sold out 11
What each fund did in MASS against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in MASS in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,241 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 21 reported a position in 908 Devices Inc.: 3 opened one, 6 added, 4 trimmed and 2 sold out, a net 294,653 shares bought.
| Fund | Change in shares | Shares now | Status | Filing |
|---|---|---|---|---|
| Old Port Advisors | +174,735 | 213,364 | added | 13F |
| Cassaday & Co Wealth Management LLC | +146,466 | 146,466 | new | 13F |
| Sumitomo Mitsui Trust Group, Inc. | -20,573 | 208,108 | trimmed | 13F |
| Essex Investment Management Co. LLC | -14,538 | 455,706 | trimmed | 13F |
| Wilmington Savings Fund Society, FSB | +8,500 | 8,500 | new | 13F |
| Wealth Enhancement Advisory Services, LLC | -1,001 | 10,324 | trimmed | 13F |
| Gamma Investing LLC | +548 | 1,216 | added | 13F |
| Concurrent Investment Advisors, LLC | +463 | 12,366 | added | 13F |
| Versant Capital Management, Inc | +77 | 1,147 | added | 13F |
| Sterling Capital Management LLC | +28 | 615 | added | 13F |
| Farther Finance Advisors, LLC | -27 | 176 | trimmed | 13F |
| IFP Advisors, Inc | +9 | 9 | new | 13F |
| Caitong International Asset Management Co., Ltd | +2 | 5 | added | 13F |
| FNY Investment Advisers, LLC | -10 | 0 | sold out | 13F |
| SJS Investment Consulting Inc. | -26 | 0 | sold out | 13F |
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 5 reported a position in 908 Devices Inc. in a 13F for the quarter ended 30 June 2026. The largest: ARK Investment Management, 2.0 million shares worth $17.6 million, 0.1% of its reported book. Sold out: Two Sigma Investments, Millennium Management. In the quarter, 3 funds added or opened a position and 4 trimmed or sold out; together they sold a net 150,216 shares, about $1.3 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| ARK Investment Management | 2,027,920 | $17.6 million | 0.1% | +81,235 | added | 30 June 2026 | 13F |
| Geode Capital Management | 761,797 | $6.6 million | 0.0% | +66,342 | added | 30 June 2026 | 13F |
| Renaissance Technologies | 191,900 | $1.7 million | 0.0% | -38,300 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 62,747 | $545,899 | 0.0% | -81,800 | trimmed | 30 June 2026 | 13F |
| FMR LLC | 19,399 | $168,773 | 0.0% | +8,856 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 0 | $0 | 0.0% | -44,127 | exited | 30 June 2026 | 13F |
| Millennium Management | 0 | $0 | 0.0% | -142,422 | exited | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| First Light Asset Management, LLC | 6,282,804 | 21.66% | $54.7 million | 3.32% | +210,241 | 13F |
| AWM Investment Company, Inc. | 4,879,773 | 16.83% | $42.5 million | 3.68% | -320,151 | 13F |
| ARK Investment Management LLC | 2,027,920 | 6.99% | $17.6 million | 0.12% | +81,235 | 13F |
| BlackRock, Inc. | 1,944,236 | 6.70% | $16.9 million | 0.00% | +176,920 | 13F |
| First Eagle Investment Management, LLC | 1,859,970 | 6.41% | $16.2 million | 0.01% | 13F | |
| Needham Investment Management LLC | 1,820,620 | 6.28% | $15.8 million | 0.48% | +580,620 | 13F |
| Vanguard Capital Management LLC | 1,291,570 | 4.45% | $11.2 million | 0.00% | +172,334 | 13F |
| Geode Capital Management, LLC | 761,797 | 2.63% | $6.6 million | 0.00% | +66,342 | 13F |
| Granahan Investment Management, LLC | 692,092 | 2.39% | $6.0 million | 0.21% | -2,978 | 13F |
| State Street Corp. | 606,560 | 2.09% | $5.3 million | 0.00% | -19,332 | 13F |
| Essex Investment Management Co. LLC | 470,244 | 1.62% | $4.1 million | 0.54% | -20,977 | 13F |
| Morgan Stanley | 404,078 | 1.39% | $3.5 million | 0.00% | +30,820 | 13F |
| Prescott Group Capital Management, L.L.C. | 361,595 | 1.25% | $3.1 million | 0.27% | no change | 13F |
| Meros Investment Management, LP | 361,368 | 1.25% | $3.1 million | 1.00% | -370 | 13F |
| American Century Companies Inc. | 359,848 | 1.24% | $3.1 million | 0.00% | +303,954 | 13F |
| HighMark Wealth Management LLC | 339,783 | 1.17% | $3.0 million | 0.99% | +20,433 | 13F |
| Northern Trust Corp. | 266,417 | 0.92% | $2.3 million | 0.00% | +25,085 | 13F |
| Bank of America Corp. | 251,027 | 0.87% | $2.2 million | 0.00% | +225,949 | 13F |
| Charles Schwab Investment Management Inc. | 233,892 | 0.81% | $2.0 million | 0.00% | +4,403 | 13F |
| Sumitomo Mitsui Trust Group, Inc. | 228,681 | 0.79% | $2.0 million | 0.00% | -41,192 | 13F |
| Amova Asset Management Americas, Inc. | 228,681 | 0.79% | $2.0 million | 0.03% | -41,192 | 13F |
| Vanguard Portfolio Management LLC | 194,858 | 0.67% | $1.7 million | 0.00% | +31,164 | 13F |
| Renaissance Technologies LLC | 191,900 | 0.66% | $1.7 million | 0.00% | -38,300 | 13F |
| Vanguard Fiduciary Trust Co. | 186,056 | 0.64% | $1.6 million | 0.00% | +5,806 | 13F |
| Raymond James Financial Inc. | 167,348 | 0.58% | $1.5 million | 0.00% | -9,172 | 13F |
| Legato Capital Management LLC | 158,119 | 0.55% | $1.4 million | 0.11% | +4,669 | 13F |
| Russell Investments Group, Ltd. | 149,655 | 0.52% | $1.3 million | 0.00% | +4,326 | 13F |
| Nuveen, LLC | 141,727 | 0.49% | $1.2 million | 0.00% | +40,653 | 13F |
| Dimensional Fund Advisors LP | 124,498 | 0.43% | $1.1 million | 0.00% | +5,747 | 13F |
| Campbell & CO Investment Adviser LLC | 111,190 | 0.38% | $967,353 | 0.05% | +81,534 | 13F |
| Mitsubishi UFJ Asset Management Co., Ltd. | 110,557 | 0.38% | $961,846 | 0.00% | -21,909 | 13F |
| Nano Cap New Millennium Growth Fund L P | 107,500 | 0.37% | $935,250 | 0.72% | -12,500 | 13F |
| AQR Capital Management LLC | 103,909 | 0.36% | $904,008 | 0.00% | -497 | 13F |
| IQ EQ FUND Management (Ireland) Ltd | 98,689 | 0.34% | $858,594 | 0.06% | +8,920 | 13F |
| Bank of Montreal | 87,346 | 0.30% | $759,911 | 0.00% | -29 | 13F |
| Sei Investments Co. | 77,719 | 0.27% | $676,155 | 0.00% | -87,175 | 13F |
| UBS Group AG | 77,416 | 0.27% | $673,519 | 0.00% | -16,029 | 13F |
| Goldman Sachs Group Inc. | 76,230 | 0.26% | $663,201 | 0.00% | -34,982 | 13F |
| D. E. Shaw & Co., Inc. | 75,446 | 0.26% | $656,380 | 0.00% | new | 13F |
| Bank of New York Mellon Corp | 72,758 | 0.25% | $632,992 | 0.00% | +13,717 | 13F |
| Acadian Asset Management LLC | 70,374 | 0.24% | $609,000 | 0.00% | new | 13F |
| Bruce & Co., Inc. | 68,286 | 0.24% | $594,088 | 0.16% | no change | 13F |
| Citadel Advisors LLC | 62,747 | 0.22% | $545,899 | 0.00% | -81,800 | 13F |
| LPL Financial LLC | 55,451 | 0.19% | $482,424 | 0.00% | -12,338 | 13F |
| Bridgeway Capital Management, LLC | 50,500 | 0.17% | $439,350 | 0.01% | no change | 13F |
| Gsa Capital Partners LLP | 49,160 | 0.17% | $428,000 | 0.03% | -201,868 | 13F |
| Old Port Advisors | 38,629 | 0.13% | $336,072 | 0.07% | no change | 13F |
| Squarepoint Ops LLC | 37,739 | 0.13% | $328,329 | 0.00% | -175,454 | 13F |
| Rhumbline Advisers | 36,791 | 0.13% | $320,076 | 0.00% | +2,241 | 13F |
| Quantinno Capital Management LP | 31,131 | 0.11% | $270,840 | 0.00% | +7,406 | 13F |
The 50 largest of the 111 funds that reported a position in MASS in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 27 October 2026 | 13G/A | BlackRock, Inc. and 1 other | 2.0 million | 4.9% | 30 September 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 14 August 2026 | 13G/A | AWM Investment Company, Inc. and 1 other | 4.9 million | 11.8% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 14 August 2026 | 13G/A | ARK Investment Management LLC and 3 others | 2.0 million | 5.3% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 14 August 2026 | 13G/A | ARCH Venture Fund VII, L.P. and 11 others | 5.8 million | 14.1% | 30 June 2026 | passive, other (13d-1(d)) | EDGAR |
| 27 July 2026 | 13G | BlackRock, Inc. and 1 other | 1.9 million | 5.1% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 5 June 2026 | 13G/A | ARK Investment Management LLC and 3 others | 1.9 million | 4.9% | 31 May 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 15 May 2026 | 13G/A | ARCH Venture Fund VII, L.P. and 11 others | 5.8 million | 15.3% | 31 March 2026 | passive, other (13d-1(d)) | EDGAR |
| 17 February 2026 | 13G/A | First Light Asset Management, LLC and 3 others | 6.2 million | 17.1% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 9 February 2026 | 13G | Ssga Funds Management, Inc. and 3 others | 596,294 | 1.6% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 5 December 2025 | 13G/A | First Light Asset Management, LLC and 3 others | 4.7 million | 12.9% | 30 November 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 14 November 2025 | 13G | First Light Asset Management, LLC and 3 others | 3.6 million | 9.8% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 4 November 2025 | 13G/A | ARK Investment Management LLC and 3 others | 2.0 million | 5.4% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 30 September 2026 | 1,020 | $11.85 | SEC |
| 28 September 2026 | 1,031 | $11.44 | SEC |
| 23 September 2026 | 311 | $11.18 | SEC |
| 21 September 2026 | 3,933 | $10.53 | SEC |
| 18 September 2026 | 303 | $10.98 | SEC |
| 31 August 2026 | 4,633 | $10.73 | SEC |
| 25 August 2026 | 1,701 | $10.92 | SEC |
| 19 August 2026 | 252 | $10.08 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.