MASS
908 Devices Inc.Company with tickers: MASS
CIK
1555279
CUSIP
65443P102
Shares Outstanding
37,813,621
Website
https://www.908devices.com
Investor Relations
https://ir.908devices.com/overview/default.aspx
13F Activity (30d)
3 filings
2 filers
Registered funds — mutual funds, ETFs and closed-end funds — whose latest Form N-PORT portfolio report holds this stock, matched by the stock's CUSIP. Each row is one fund position with its size, value and weight in that fund.
Funds holding MASS
96 fund positions| Fund | Ticker | Balance | Value | % of Fund | Side | Reported | Open |
|---|---|---|---|---|---|---|---|
| ARK Genomic Revolution ETF | — | 1,952,552 | $13,335,930 | 1.08% | Long | 2026-04-30 | |
| Needham Aggressive Growth Fund | — | 925,000 | $5,661,000 | 0.36% | Long | 2026-03-31 | |
| VANGUARD TOTAL STOCK MARKET INDEX FUND | — | 782,657 | $4,789,861 | 0.00% | Long | 2026-03-31 | |
| iShares Russell 2000 ETF | — | 699,374 | $4,280,169 | 0.01% | Long | 2026-03-31 | |
| VANGUARD EXTENDED MARKET INDEX FUND | — | 310,932 | $1,902,904 | 0.00% | Long | 2026-03-31 | |
| iShares Russell 2000 Growth ETF | — | 173,033 | $1,058,962 | 0.01% | Long | 2026-03-31 | |
| Fidelity Extended Market Index Fund | — | 141,478 | $976,198 | 0.00% | Long | 2026-02-28 | |
| Schwab U.S. Small-Cap ETF | — | 137,346 | $947,687 | 0.00% | Long | 2026-02-28 | |
| VANGUARD RUSSELL 2000 INDEX FUND | — | 135,220 | $933,018 | 0.01% | Long | 2026-02-28 | |
| ACUITAS US MICROCAP FUND | — | 129,866 | $794,780 | 0.81% | Long | 2026-03-31 | |
| Needham Small Cap Growth Fund | — | 120,000 | $734,400 | 0.42% | Long | 2026-03-31 | |
| State Street(R) SPDR(R) S&P Kensho Future Security ETF | — | 115,534 | $707,068 | 0.66% | Long | 2026-03-31 | |
| iShares Micro-Cap ETF | — | 69,810 | $427,237 | 0.04% | Long | 2026-03-31 | |
| BRUCE FUND | — | 68,286 | $417,910 | 0.12% | Long | 2026-03-31 | |
| Avantis U.S. Small Cap Equity ETF | — | 55,271 | $381,370 | 0.02% | Long | 2026-02-28 | |
| Fidelity Total Market Index Fund | — | 51,304 | $353,998 | 0.00% | Long | 2026-02-28 | |
| U.S. Small Cap Equity Fund | — | 50,671 | $346,083 | 0.04% | Long | 2026-04-30 | |
| iShares Russell 2000 Value ETF | — | 53,896 | $329,844 | 0.00% | Long | 2026-03-31 | |
| Ultra-Small Company Market Fund | — | 50,500 | $309,060 | 0.25% | Long | 2026-03-31 | |
| Fidelity Series Total Market Index Fund | — | 39,134 | $270,025 | 0.00% | Long | 2026-02-28 | |
| U.S. Targeted Value Portfolio | — | 39,615 | $249,971 | 0.00% | Long | 2026-01-31 | |
| Master Small Cap Index Series | — | 40,367 | $247,046 | 0.01% | Long | 2026-03-31 | |
| EQ/Small Company Index Portfolio | — | 31,550 | $193,086 | 0.01% | Long | 2026-03-31 | |
| U.S. SMALL CAP PORTFOLIO | — | 29,922 | $188,808 | 0.00% | Long | 2026-01-31 | |
| EQ/2000 Managed Volatility Portfolio | — | 30,619 | $187,388 | 0.01% | Long | 2026-03-31 | |
| Fidelity Nasdaq Composite Index Fund | — | 26,347 | $181,794 | 0.00% | Long | 2026-02-28 | |
| VANGUARD RUSSELL 2000 GROWTH INDEX FUND | — | 19,734 | $136,165 | 0.01% | Long | 2026-02-28 | |
| Goldman Sachs Absolute Return Tracker Fund | — | 18,204 | $111,408 | 0.00% | Long | 2026-03-31 | |
| LVIP SSGA Small-Cap Index Fund | — | 18,100 | $110,772 | 0.01% | Long | 2026-03-31 | |
| Schwab U.S. Broad Market ETF | — | 15,500 | $106,950 | 0.00% | Long | 2026-02-28 | |
| Fidelity Small Cap Growth Index Fund | — | 16,155 | $98,869 | 0.01% | Long | 2026-03-31 | |
| VANGUARD BALANCED INDEX FUND | — | 15,777 | $96,555 | 0.00% | Long | 2026-03-31 | |
| AQR Small Cap Momentum Style Fund | — | 15,216 | $93,122 | 0.06% | Long | 2026-03-31 | |
| Small Cap Index Fund | — | 14,878 | $91,053 | 0.01% | Long | 2026-03-31 | |
| U.S. Small Cap Equity Fund | — | 13,088 | $80,099 | 0.04% | Long | 2026-03-31 | |
| Small Cap Index Fund | — | 11,133 | $76,818 | 0.01% | Long | 2026-02-28 | |
| Small Cap Core Fund | — | 11,347 | $69,444 | 0.02% | Long | 2026-03-31 | |
| Dimensional VA U.S. Targeted Value Portfolio | — | 7,902 | $63,058 | 0.01% | Long | 2025-10-31 | |
| MetLife Russell 2000 Index Portfolio | — | 9,989 | $61,133 | 0.01% | Long | 2026-03-31 | |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND | — | 9,870 | $60,404 | 0.00% | Long | 2026-03-31 | |
| STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO | — | 9,400 | $57,528 | 0.00% | Long | 2026-03-31 | |
| Fidelity Small Cap Value Index Fund | — | 8,304 | $50,820 | 0.00% | Long | 2026-03-31 | |
| iShares Russell 3000 ETF | — | 8,008 | $49,009 | 0.00% | Long | 2026-03-31 | |
| U.S. MICRO CAP PORTFOLIO | — | 6,110 | $38,554 | 0.00% | Long | 2026-01-31 | |
| ATM Small Cap Managed Volatility Portfolio | — | 6,291 | $38,501 | 0.00% | Long | 2026-03-31 | |
| NVIT Small Cap Index Fund | — | 6,137 | $37,558 | 0.01% | Long | 2026-03-31 | |
| Small-Cap Index Portfolio | — | 6,002 | $36,732 | 0.00% | Long | 2026-03-31 | |
| SIIT EXTENDED MARKET INDEX FUND | — | 5,300 | $36,570 | 0.00% | Long | 2026-02-28 | |
| JNL/DFA U.S. Small Cap Fund | — | 5,489 | $33,593 | 0.00% | Long | 2026-03-31 | |
| VANGUARD RUSSELL 2000 VALUE INDEX FUND | — | 4,665 | $32,189 | 0.00% | Long | 2026-02-28 |
Showing 1–50 of 96 positions