Rapid Micro Biosystems
RPID
35 hedge funds and large institutions have $31.3M invested in Rapid Micro Biosystems in 2026 Q2 according to their latest regulatory filings, with 5 funds opening new positions, 9 increasing their positions, 13 reducing their positions, and 16 closing their positions.
82% more capital inflows, than outflows
Capital inflows: $7.62M | Capital outflows: $4.18M
3.36% more ownership
Funds ownership: 40.05% → 43.41% (+3.4%)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
26% less funds holding
Funds holding: 47 → 35 (-12)
31% less repeat investments, than reductions
Existing positions increased: 9 | Existing positions reduced: 13
69% less first-time investments, than exits
New positions opened: 5 | Existing positions closed: 16
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Armistice Capital
New York
|
+$7.01M |
| 2 |
Renaissance Technologies
New York
|
+$180K |
| 3 |
Evernest Financial Advisors
Carmel,
Indiana
|
+$155K |
| 4 |
BlackRock
New York
|
+$68.7K |
| 5 |
HRT Financial
New York
|
+$48.7K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Essex Investment Management
Boston,
Massachusetts
|
-$1.1M |
| 2 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$481K |
| 3 |
SEI Investments
Oaks,
Pennsylvania
|
-$459K |
| 4 |
Advent International
Boston,
Massachusetts
|
-$364K |
| 5 |
Legato Capital Management
San Francisco,
California
|
-$327K |
RPID Hedge Fund Activity: Q2 2026 in Review
35 of the 8,384 institutional investors tracked by Wall St. Rank reported a position in Rapid Micro Biosystems (RPID) for Q2 2026, worth a combined $31.3M — down 16% from $37.3M a quarter earlier.
Sellers outnumbered buyers: 16 funds closed out of RPID and 5 opened new positions — a net loss of 11 holders — while 13 trimmed existing stakes and 9 added.
The largest buyer was Armistice Capital, opening a new position worth an estimated $7.01M. The largest seller was Essex Investment Management, cutting an estimated $1.1M.
- 35 institutional investors held Rapid Micro Biosystems (RPID) as of Q2 2026, down from 47 in Q1 2026.
- Funds reported $31.3M of Rapid Micro Biosystems stock for Q2 2026, down 16% quarter-over-quarter.
- 5 funds opened new Rapid Micro Biosystems positions in Q2 2026 and 16 closed out, a net change of -11 holders.
- The largest Rapid Micro Biosystems buyer in Q2 2026 was Armistice Capital, an estimated $7.01M added.
- The largest Rapid Micro Biosystems seller in Q2 2026 was Essex Investment Management, an estimated $1.1M sold.
Based on aggregated 13F filings for Q2 2026.