908 Devices Ownership | Who Owns 908 Devices?
908 Devices Ownership Summary
908 Devices is owned by 76.88% institutional investors, 7.49% insiders, and 15.63% retail investors. First light asset management is the largest institutional shareholder, holding 17.06% of MASS shares. ARK Genomic Revolution is the top mutual fund, with 5.27% of its assets in 908 Devices shares.
MASS Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | 908 Devices | 76.88% | 7.49% | 15.63% |
| Sector | Healthcare Stocks | 247.07% | 12.15% | -159.22% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| First light asset management | 6.28M | 17.06% | $54.66M |
| Awm investment company | 4.88M | 13.25% | $42.45M |
| Ark investment management | 2.03M | 5.51% | $17.64M |
| Blackrock funding, inc. /de | 1.94M | 5.28% | $16.91M |
| Blackrock | 1.69M | 5.18% | $8.72M |
| Needham investment management | 1.82M | 4.94% | $15.84M |
| Vanguard group | 1.47M | 4.07% | $7.72M |
| Vanguard capital management | 1.29M | 3.51% | $11.24M |
| First eagle investment management | 875.79K | 2.32% | $10.81M |
| Geode capital management | 798.86K | 2.12% | $9.86M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Awm investment company | 4.88M | 3.68% | $42.45M |
| First light asset management | 6.28M | 3.32% | $54.66M |
| Perkins capital management | 135.05K | 1.19% | $1.67M |
| Meros investment management, lp | 361.37K | 1.00% | $3.14M |
| Highmark wealth management | 339.78K | 0.99% | $2.96M |
| Essex investment management | 455.71K | 0.83% | $5.62M |
| Nano cap new millennium growth fund l p | 107.50K | 0.72% | $935.25K |
| Old port advisors | 213.36K | 0.53% | $2.63M |
| Needham investment management | 1.82M | 0.48% | $15.84M |
| Prescott group capital management | 361.60K | 0.40% | $4.46M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Needham investment management | 1.82M | 0.48% | 580.62K |
| American century companies | 359.85K | 0.00% | 303.95K |
| Sixth street partners management company | 233.89K | 0.00% | 233.89K |
| Bank of america corp /de/ | 251.03K | 0.00% | 225.95K |
| First light asset management | 6.28M | 3.32% | 210.24K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Ameriprise financial | - | - | -1.81M |
| Eventide asset management | - | - | -1.43M |
| Fred alger management | - | - | -820.45K |
| Iron triangle partners lp | - | - | -728.87K |
| Tao capital management lp | - | - | -568.98K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Sixth street partners management company | 233.89K | 0.00% | 233.89K | $2.03M |
| Victory capital management | 155.82K | 0.00% | 155.82K | $1.92M |
| Perkins capital management | 135.05K | 1.19% | 135.05K | $1.67M |
| Clarivest asset management | 129.79K | 0.07% | 129.79K | $668.41K |
| D. e. shaw | 75.45K | 0.00% | 75.45K | $656.38K |
Sold Out
| Holder | Change |
|---|---|
| Point72 asia (singapore) pte. | -1.00 |
| Nelson, van denburg & campbell wealth management group | -5.00 |
| Sjs investment consulting | -26.00 |
| Jones financial companies lllp | -100.00 |
| Quarry lp | -197.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 113 | 0.89% | 28,305,417 | 1.28% | 76 | 1.33% | 61 | 41.86% | 33 | -28.26% |
| Mar 31, 2026 | 111 | -5.93% | 27,947,106 | 6.83% | 77 | 1.47% | 43 | -28.33% | 46 | 15.00% |
| Dec 31, 2025 | 24 | -77.57% | 3,346,961 | -86.37% | 9 | 0.20% | 10 | -80.00% | 11 | -69.44% |
| Sep 30, 2025 | 32 | -66.32% | 3,100,284 | -86.74% | 8 | 0.20% | 11 | -81.03% | 11 | -50.00% |
| Jun 30, 2025 | 101 | 9.78% | 24,343,966 | 18.04% | 67 | 2.00% | 62 | 16.98% | 23 | 15.00% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| ARK Genomic Revolution | 1.91M | 5.27% | 73.19K |
| ARK Genomic Revolution ETF | 2.05M | 4.96% | 11.80K |
| SPDR® S&P Kensho New Economies Comps ETF | 1.70M | 4.71% | - |
| Columbia Small Cap Growth | 1.52M | 4.37% | 13.97K |
| Columbia Small Cap Growth Inst | 1.52M | 4.31% | - |
| Needham Aggressive Growth Retail | 1.54M | 3.73% | 142.35K |
| Avantis US Small Cap Value ETF | 1.10M | 2.67% | 17.14K |
| Vanguard Total Stock Mkt Idx Inv | 919.83K | 2.53% | 54.80K |
| Vanguard US Total Market Shares ETF | 792.16K | 2.24% | - |
| Vanguard Morn Total Stk Mkt Idx Investor | 919.83K | 2.24% | 54.80K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Nov 04, 2026 | Brown Christopher D. | - | Sell | $328.50K |
| Oct 07, 2026 | Brown Christopher D. | - | Sell | $356.70K |
| Oct 06, 2026 | Griffith Joseph H. IV | Chief Financial Officer | Sell | $65.15K |
| Sep 29, 2026 | AWM Investment Company, Inc. | - | Sell | $207.32K |
| Sep 24, 2026 | AWM Investment Company, Inc. | - | Sell | $272.63K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q4 | - | 3 |
| 2026 Q3 | - | 22 |
| 2026 Q2 | - | 31 |
| 2026 Q1 | - | 4 |
| 2025 Q4 | - | 2 |
MASS Ownership FAQ
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