Ticker · CUSIP 75340L104

RPID

RAPID MICRO BIOSYSTEMS INC
···Share
Holders (tracked)
4
Combined shares
389,035
Combined value
$1.13M
Last close
Quarter
2025Q4
Tracked holders · last 8 quarters
+3 vs previous quarter over the last 8.
442024Q12025Q4

SEC event timeline

5 events
  1. +126,539 shares · 2025Q4
    13F
  2. +116,502 shares · 2025Q4
    13F
  3. +30,367 shares · 2025Q4
    13F
  4. +5,440 shares · 2025Q4
    13F
  5. −800 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
Added to1
Trimmed0
Exited0

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
5
$57.1M
2022Q2
5
$23.1M
2022Q3
5
$9K
2022Q4
5
$2.1M
2023Q1
5
$2.4M
2023Q2
5
$2.4M
2023Q3
5
$2.6M
2023Q4
5
$1.8M
2024Q1
4
$2.3M
2024Q2
4
$1.3M
2024Q3
3
$607K
2024Q4
3
$285K
2025Q1
1
$292K
2025Q2
2
$455K
2025Q3
1
$368K
2025Q4
4
$1.1M

Who owns RPID

4 super-investors · 2025Q4
Tracked stake
389.0K
shares
Combined value
$1M
% of shares outstanding
shares-out unknown
Quarter action mix
New3Added1
#ManagerSharesValue
1Ken Griffin
Citadel Advisors
126.5K$367K
2Izzy Englander
Millennium Mgmt
116.5K$338K
3Renaissance Technologies115.6K$335K
4Steve Cohen
Point72
30.4K$88K

Recent moves

20 transactions
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