Latest Period
Q1 2026
Security Snapshot
908 Devices Inc. - Common Stock par value $0.001 per share (MASS) Institutional Ownership
CUSIP: 65443P102
13F Institutional Holders and Ownership History from Q4 2020 to Q1 2026
Institutions Reporting
106
Shares (Excl. Options)
27,920,373
Price
$6.12
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- Type / Class
- Equity / Common Stock par value $0.001 per share
- Symbol
- MASS on Nasdaq
- Shares outstanding
- 37,968,732
- Price per share
- $6.76
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 27,920,373
- Total reported value
- $170,839,575
- % of total 13F portfolios
- 0%
- Share change
- +1,804,940
- Value change
- +$11,571,966
- Number of holders
- 106
- Price from insider filings
- $6.76
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Quick Takeaways
- MASS - 908 Devices Inc. - Common Stock par value $0.001 per share is tracked under CUSIP 65443P102.
- 106 institutions reported positions in Q1 2026.
- 8 significant owners is listed from Schedule 13D/13G reporting.
What Changed
- Holder count moved from 117 to 106 between Q4 2025 and Q1 2026.
- Reported value moved from $137,342,999 to $170,839,575.
Why This Matters
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Source Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 106 institutions filings for Q1 2026.
Investment Quick Answers
What is CUSIP 65443P102?
CUSIP 65443P102 identifies MASS - 908 Devices Inc. - Common Stock par value $0.001 per share in SEC 13F datasets.
Where can I see the latest institutional holders?
Review the Q1 2026 holders report and the ownership history table below.
Next ownership checks
Use the next link that matches the question you still need to answer about this security.
- Latest 13F filings when you want to inspect fresh institutional portfolio moves.
- Latest Schedule 13D/13G reports when you need large-owner changes outside the 13F cycle.
- All institutional ownership pages to compare this security with other holder-history pages.
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 65443P102:
Significant Owners of 908 Devices Inc. - Common Stock par value $0.001 per share (MASS) based on Schedule 13D/G filings
| 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 |
| ARCH Venture Fund VII, L.P. | 15% | $41,477,802 | 5,809,216 | Keith Crandell | 31 Mar 2026 | |||
| 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 Mar 2026, 106 institutional investors reported holding 27,920,373 shares of 908 Devices Inc. - Common Stock par value $0.001 per share (MASS). This represents 74% of the company’s total 37,968,732 outstanding shares.
Top 25 Institutional Shareholders
The largest institutional shareholders of 908 Devices Inc. - Common Stock par value $0.001 per share (MASS) together control 65% 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 |
|---|---|---|---|---|---|
| First Light Asset Management, LLC | 16% | 6,072,563 | +26% | 3.3% | $37,164,086 |
| AWM Investment Company, Inc. | 14% | 5,199,924 | 0% | 3.5% | $31,823,535 |
| ARK Investment Management LLC | 5.1% | 1,946,685 | -2% | 0.09% | $11,913,711 |
| BlackRock, Inc. | 4.7% | 1,767,316 | -1.9% | 0% | $10,815,974 |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 3.3% | 1,240,000 | +61% | 0.39% | $7,588,800 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.9% | 1,119,236 | 0% | 0% | $6,849,724 |
| First Eagle Investment Management, LLC | 2.1% | 803,606 | +29% | 0.01% | $4,918,069 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8% | 695,455 | +1% | 0% | $4,257,481 |
| Granahan Investment Management, LLC | 1.8% | 695,070 | +663% | 0.21% | $4,253,828 |
| STATE STREET CORP | 1.6% | 625,892 | +5% | 0% | $3,830,459 |
| Tao Capital Management LP | 1.5% | 568,981 | 0% | 2.9% | $3,482,164 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 1.3% | 491,221 | +1.8% | 0.48% | $3,006,273 |
| MORGAN STANLEY | 0.98% | 373,258 | -15% | 0% | $2,284,340 |
| Meros Investment Management, LP | 0.95% | 361,738 | +4.2% | 0.96% | $2,213,837 |
| Prescott Group Capital Management, L.L.C. | 0.95% | 361,595 | 0% | 0.22% | $2,212,961 |
| HighMark Wealth Management LLC | 0.84% | 319,350 | +33% | 0.8% | $1,954,422 |
| Sumitomo Mitsui Trust Group, Inc. | 0.71% | 269,873 | -6.3% | 0% | $1,651,623 |
| Amova Asset Management Americas, Inc. | 0.71% | 269,873 | -6.3% | 0.02% | $1,651,623 |
| GSA CAPITAL PARTNERS LLP | 0.66% | 251,028 | +106% | 0.1% | $1,536,000 |
| NORTHERN TRUST CORP | 0.64% | 241,332 | +4.8% | 0% | $1,476,952 |
| GM Advisory Group, LLC | 0.63% | 238,218 | -15% | 0.06% | $1,457,894 |
| RENAISSANCE TECHNOLOGIES LLC | 0.61% | 230,200 | +3.6% | 0% | $1,408,824 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.6% | 229,489 | -4.7% | 0% | $1,404,473 |
| Squarepoint Ops LLC | 0.56% | 213,193 | -2.5% | 0% | $1,304,741 |
| VANGUARD FIDUCIARY TRUST CO | 0.47% | 180,250 | 0% | 0% | $1,103,130 |
Institutional Holders of 908 Devices Inc. - Common Stock par value $0.001 per share (MASS) across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 27,920,373 | $170,839,575 | +$11,571,966 | $6.12 | 106 |
| 2025 Q4 | 26,160,214 | $137,342,999 | +$6,718,786 | $5.25 | 117 |
| 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 |