Which hedge funds own MASS? 908 DEVICES INC, Q2 2026 13F holders
4 of the hedge funds tracked by WhaleCreep disclosed a position in MASS (908 DEVICES INC) in their Q2 2026 13F filings, worth $3.1m in total. The largest holder by portfolio weight is Brevan Howard Capital Management at 0.0% of its book. 2 managers opened a new position this quarter: Brevan Howard Capital Management, D. E. Shaw & Co. 1 exited: Millennium Management.
4tracked managers holding
2opened this quarter
1exited this quarter
Which hedge funds hold MASS? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Brevan Howard Capital Management | Q2 2026 | 0.0% | $180.0k | 20,692 | – | new |
| Renaissance Technologies LLC | Q2 2026 | 0.0% | $1.7m | 191,900 | -17% | reduced |
| D. E. Shaw & Co | Q2 2026 | 0.0% | $656.4k | 75,446 | – | new |
| Citadel Advisors | Q2 2026 | 0.0% | $545.9k | 62,747 | -57% | reduced |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| Millennium Management | 0.0% | $871.6k |
How has hedge fund ownership of MASS changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 4 | $3.1m |
| Q1 2026 | 3 | $3.2m |
| Q4 2025 | 2 | $1.5m |
| Q3 2025 | 1 | $1.8m |
| Q2 2025 | 1 | $1.2m |
| Q1 2025 | 1 | $647.8k |
| Q4 2024 | 1 | $648.9k |
| Q3 2024 | 1 | $1.1m |
| Q2 2024 | 1 | $1.0m |
| Q1 2024 | 2 | $965.7k |
| Q4 2023 | 2 | $1.3m |
| Q3 2023 | 1 | $564.0k |
| Q2 2023 | 2 | $1.8m |
| Q1 2023 | 2 | $1.3m |
| Q4 2022 | 2 | $1.8m |
| Q3 2022 | 2 | $2.7m |
Counts every tracked manager that disclosed MASS in that quarter's filing, including managers that have since stopped filing.