908 Devices
MASS
107 hedge funds and large institutions have $215M invested in 908 Devices in 2025 Q3 according to their latest regulatory filings, with 17 funds opening new positions, 29 increasing their positions, 40 reducing their positions, and 11 closing their positions.
317% more call options, than puts
Call options by funds: $592K | Put options by funds: $142K
55% more first-time investments, than exits
New positions opened: 17 | Existing positions closed: 11
24% more capital invested
Capital invested by funds: $174M → $215M (+$41.1M)
6% more funds holding
Funds holding: 101 → 107 (+6)
0.46% more ownership
Funds ownership: 67.89% → 68.35% (+0.46%)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
28% less repeat investments, than reductions
Existing positions increased: 29 | Existing positions reduced: 40
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
FLAM
First Light Asset Management
Edina,
Minnesota
|
+$9.59M |
| 2 |
First Eagle Investment Management
New York
|
+$2.24M |
| 3 |
Raymond James Financial
St Petersburg,
Florida
|
+$1.17M |
| 4 |
Squarepoint
New York
|
+$889K |
| 5 |
NIM
Needham Investment Management
New York
|
+$478K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AIM
ARK Investment Management
St. Petersburg,
Florida
|
-$4.61M |
| 2 |
GAG
GM Advisory Group
Melville,
New York
|
-$3.24M |
| 3 |
Marshall Wace
London,
United Kingdom
|
-$1.39M |
| 4 |
D.E. Shaw & Co
New York
|
-$1.07M |
| 5 |
SSA
Schonfeld Strategic Advisors
New York
|
-$887K |
MASS Hedge Fund Activity: Q3 2025 in Review
107 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in 908 Devices (MASS) for Q3 2025, worth a combined $215M — up 24% from $174M a quarter earlier.
Buyers outnumbered sellers: 17 funds opened new MASS positions and 11 closed out — a net gain of 6 holders — while 29 added to existing stakes and 40 trimmed.
The largest buyer was First Light Asset Management, adding an estimated $9.59M. The largest seller was ARK Investment Management, cutting an estimated $4.61M.
- 107 institutional investors held 908 Devices (MASS) as of Q3 2025, up from 101 in Q2 2025.
- Funds reported $215M of 908 Devices stock for Q3 2025, up 24% quarter-over-quarter.
- 17 funds opened new 908 Devices positions in Q3 2025 and 11 closed out, a net change of +6 holders.
- The largest 908 Devices buyer in Q3 2025 was First Light Asset Management, an estimated $9.59M added.
- The largest 908 Devices seller in Q3 2025 was ARK Investment Management, an estimated $4.61M sold.
Based on aggregated 13F filings for Q3 2025.