908 Devices
MASS • NASDAQ
908 Devices is a medical - devices company in the healthcare sector on NASDAQ, led by Jeffrey P. George, with a market cap of $216.4M. As of Q3 2025, 68% of shares are held by 107 institutional investors, with AWM Investment Company, Inc. as the largest holder at 14.41%.
CEOJeffrey P. George
Market Cap$216.4M
Medical - Devices
Healthcare
Employees230.0
Website908devices.com
Country
United States of America
Overview
Overview of institutional ownership in MASS as of Q3 2025 with a market cap of $316.1M
All Institutions
- Institutions
- 107
- Value Held
- $215.3M
- Shares Held
- 24.6M
- Avg Position
- $2.0M
- Median Position
- $272.1K
Hedge Funds
- Hedge Funds
- 17
- Value Held
- $79.0M
- Shares Held
- 9.0M
- Avg Position
- $4.6M
- Median Position
- $879.2K
Ownership Breakdown
Based on market cap of $316.1M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in MASS as of Q3 2025
| Institution | Position Value |
|---|---|
A AWM Investment Company, Inc. Hedge Fund•Event Driven | $45.6M 4.27% of portfolio |
 First Light Asset Management, LLC Hedge Fund•Sector | $22.0M 2.07% of portfolio |
 STATE STREET CORP Institution | $20.1M 0.00% of portfolio |
 ARK Investment Management LLC ETF Provider | $17.1M 0.10% of portfolio |
B BlackRock, Inc. Institution | $15.4M 0.00% of portfolio |
 VANGUARD GROUP INC Institution | $12.5M 0.00% of portfolio |
 GM Advisory Group, Inc. RIA/Wealth | $5.9M 0.25% of portfolio |
 GEODE CAPITAL MANAGEMENT LLC ETF Provider | $5.9M 0.00% of portfolio |
F First Eagle Investment Management, LLC Long Only Manager | $5.3M 0.01% of portfolio |
 MORGAN STANLEY RIA/Wealth | $5.0M 0.00% of portfolio |
Net Capital Flow
Institutional buying and selling activity for MASS in Q3 2025
- Traded
- +$2.6M
- Buyers
- 49
- Sellers
- 49
- Total Bought
- +$24.7M
- Total Sold
- −$22.1M
- Avg Position
- $1.8M
Biggest Buyers
| Institution | Net Bought |
|---|---|
First Light Asset Management, LLC Hedge Fund•Sector | +$12.6M +1.4M shares |
F First Eagle Investment Management, LLC Long Only Manager | +$2.9M +336.6K shares |
 RAYMOND JAMES FINANCIAL INC RIA/Wealth | +$1.5M +176.6K shares |
S Squarepoint Ops LLC Hedge Fund•Quant | +$1.2M +133.8K shares |
 NEEDHAM INVESTMENT MANAGEMENT LLC Hedge Fund•Long/Short | +$630.7K +72.0K shares |
 Cassaday & Co Wealth Management LLC RIA/Wealth | +$627.5K +71.6K shares |
S Skopos Labs, Inc. RIA/Wealth | +$574.9K +65.6K shares |
 GRANAHAN INVESTMENT MANAGEMENT INC/MA Long Only Manager | +$563.6K +64.3K shares |
C Cubist Systematic Strategies, LLC Institution | +$419.9K +47.9K shares |
X XTX Topco Ltd Institution | +$394.5K +45.0K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
ARK Investment Management LLC ETF Provider | −$6.1M −694.5K shares |
GM Advisory Group, Inc. RIA/Wealth | −$4.3M −487.2K shares |
 Marshall Wace LLP Institution | −$1.8M −209.2K shares |
D D. E. Shaw & Co., Inc. Institution | −$1.4M −160.6K shares |
 Schonfeld Strategic Advisors LLC Hedge Fund•Multi-Strategy | −$1.2M −133.4K shares |
 BANK OF AMERICA CORP /DE/ Institution | −$816.0K −93.1K shares |
S Sumitomo Mitsui Trust Holdings, Inc. Institution | −$700.0K −79.9K shares |
 Invesco Ltd. ETF Provider | −$688.9K −78.6K shares |
 Nikko Asset Management Americas, Inc. Long Only Manager | −$665.2K −76.0K shares |
M Manatuck Hill Partners, LLC Hedge Fund•Long/Short | −$570.4K −80.0K shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited MASS in Q3 2025
- New Positions
- 7
- New Value
- $1.6M
- Exited Positions
- 11
- Exited Value
- $1.5M
New Positions
| Institution | Position Value |
|---|---|
Cassaday & Co Wealth Management LLC RIA/Wealth | $627.5K 71.6K shares |
S Skopos Labs, Inc. RIA/Wealth | $574.9K 65.6K shares |
 FourThought Financial Partners, LLC RIA/Wealth | $327.0K 37.3K shares |
B Brevan Howard Capital Management LP Institution | $101.6K 11.6K shares |
O Optiver Holding B.V. Institution | $4.1K 466.0 shares |
J JONES FINANCIAL COMPANIES LLLP Institution | $793.0 99.0 shares |
 Sunbelt Securities, Inc. RIA/Wealth | $193.0 22.0 shares |
Exited Positions
| Institution | Previous Position |
|---|---|
M Manatuck Hill Partners, LLC Hedge Fund•Long/Short | $570.4K 80.0K shares |
J JANE STREET GROUP, LLC Institution | $341.2K 47.9K shares |
 ZACKS INVESTMENT MANAGEMENT RIA/Wealth | $183.4K 25.7K shares |
D Dynamic Technology Lab Private Ltd Institution | $132.2K 18.5K shares |
 Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy | $82.0K 11.5K shares |
C Catalyst Funds Management Pty Ltd Institution | $81.3K 11.4K shares |
M MANUFACTURERES LIFE INSURANCE CO Institution | $77.5K 10.9K shares |
 Larson Financial Group LLC RIA/Wealth | $24.7K 3.5K shares |
W WHITE BAY PT LLC Institution | $16.2K 2.3K shares |
K Kozak & Associates, Inc. Institution | $5.3K 750.0 shares |
Options Activity
Institutions with the largest Call and Put options positions in MASS as of Q3 2025
- Call Positions
- 2
- Call Value
- $349.5K
- Put Positions
- 2
- Put Value
- $119.1K
Call Positions
| Institution | Position Value |
|---|---|
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $349.5K 399.0 contracts |
 SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | - - contracts |
Put Positions
| Institution | Position Value |
|---|---|
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $119.1K 136.0 contracts |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | - - contracts |
Most Committed Institutions
Institutions with MASS as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
A AWM Investment Company, Inc. Hedge Fund•Event Driven | 4.27% $45.6M |
T Tao Capital Management LP Institution | 3.77% $5.0M |
First Light Asset Management, LLC Hedge Fund•Sector | 2.07% $22.0M |
 ESSEX INVESTMENT MANAGEMENT CO LLC Long Only Manager | 0.66% $4.3M |
 Meros Investment Management, LP Long Only Manager | 0.39% $913.9K |
GM Advisory Group, Inc. RIA/Wealth | 0.25% $5.9M |
 Bruce & Co., Inc. Long Only Manager | 0.19% $598.2K |
P PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. Hedge Fund•Long/Short | 0.18% $1.7M |
 Legato Capital Management LLC Fund of Funds | 0.14% $1.2M |
NEEDHAM INVESTMENT MANAGEMENT LLC Hedge Fund•Long/Short | 0.14% $1.9M |
Hedge Fund Spotlight
Discover hedge funds investing in MASS
First Light Asset Management, LLC
Hedge Fund • Sector
Portfolio ManagerMathew Paul Arens
- Portfolio Value
- $1.1B
- Positions
- 41
- Last Reported
- Q3 2025
Sector Allocation
Position in 908 Devices
- Market Value
- $22.0M
- Shares Held
- 2.5M
- Portfolio Weight
- 2.07%
- Owned Since
- 2025-Q1
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Medical - Devices Healthcare | $103.6M | 9.76% | |
Unknown Unknown | $90.6M | 8.54% | |
Unknown Unknown | $88.2M | 8.31% |
