Which hedge funds own RPID? RAPID MICRO BIOSYSTEMS INC, Q2 2026 13F holders
4 of the hedge funds tracked by WhaleCreep disclosed a position in RPID (RAPID MICRO BIOSYSTEMS INC) in their Q2 2026 13F filings, worth $6.6m in total. The largest holder by portfolio weight is Armistice Capital, LLC at 0.2% of its book. 2 managers opened a new position this quarter: Armistice Capital, LLC, Citadel Advisors LLC. 7 exited: 683 Capital Management, LLC, Catalyst Funds Management Pty Ltd, Fifth Lane Capital, LP.
4tracked managers holding
2opened this quarter
7exited this quarter
Which hedge funds hold RPID? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Armistice Capital, LLC | Q2 2026 | 0.2% | $5.8m | 3,328,000 | – | new |
| Renaissance Technologies LLC | Q2 2026 | 0.0% | $366.9k | 212,101 | 68% | added |
| Millennium Management LLC | Q2 2026 | 0.0% | $409.3k | 236,599 | -16% | reduced |
| Citadel Advisors LLC | Q2 2026 | 0.0% | $27.9k | 16,142 | – | new |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| 683 Capital Management, LLC | 0.2% | $274.2k |
| Catalyst Funds Management Pty Ltd | 0.0% | $48.1k |
| Fifth Lane Capital, LP | 0.2% | $161.2k |
| Graham Capital Management, L.P. | 0.0% | $45.4k |
| Hudson Bay Capital Management LP | 0.0% | $28.4k |
| Marshall Wace, LLP | 0.0% | $34.6k |
| Qube Research & Technologies Ltd | 0.0% | $35.0k |
How has hedge fund ownership of RPID changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 4 | $6.6m |
| Q1 2026 | 9 | $1.6m |
| Q4 2025 | 11 | $3.9m |
| Q3 2025 | 4 | $5.6m |
| Q2 2025 | 4 | $7.2m |
| Q1 2025 | 3 | $5.0m |
| Q4 2024 | 3 | $284.8k |
| Q3 2024 | 3 | $607.3k |
| Q2 2024 | 2 | $836.1k |
| Q1 2024 | 2 | $1.3m |
| Q4 2023 | 2 | $1.0m |
| Q3 2023 | 2 | $1.4m |
| Q2 2023 | 2 | $1.3m |
| Q1 2023 | 2 | $1.1m |
| Q4 2022 | 1 | $915.7k |
| Q3 2022 | 2 | $2.5m |
Counts every tracked manager that disclosed RPID in that quarter's filing, including managers that have since stopped filing.