Rapid Micro Biosystems, Inc.

Historical 13F Holders

Symbol
RPID
CUSIP
75340L104
All holders as of
Q2 2026
Type
Equity
Class
CLASS A COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 75340L104 since 12/18/2024, largest first.

Filer % of Class Filed
Bain Capital Life Sciences Fund, L.P. 13G/A
16.8% 8/14/2026
Event 6/30/2026
Longitude Capital Partners II, LLC 13G/A
8.6% 5/15/2026
Event 3/31/2026
Armistice Capital, LLC 13G
7.3% 8/14/2026
Event 6/30/2026
Spignesi Robert G. Jr. 13D 6.3% 8/19/2025
Event 3/28/2024
Endeavour Medtech Growth II LP 13G/A
5.7% 2/13/2026
Event 12/31/2025

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q2 34 17.5 M $30.3 M
2026 Q1 46 15.8 M $36.0 M
2025 Q4 42 14.6 M $42.5 M
2025 Q3 30 14.8 M $49.5 M
2025 Q2 30 15.1 M $52.3 M
2025 Q1 29 15.3 M $40.4 M
2024 Q4 20 11.9 M $10.8 M
2024 Q3 21 17.9 M $15.9 M
2024 Q2 24 19.1 M $12.6 M
2024 Q1 27 19.7 M $18.9 M
2023 Q4 30 21.1 M $15.6 M
2023 Q3 24 21.5 M $23.2 M
2023 Q2 25 21.9 M $21.9 M
2023 Q1 32 22.9 M $34.5 M
2022 Q4 44 24.5 M $27.7 M
2022 Q3 54 25.6 M $82.8 M
2022 Q2 53 26.1 M $112 M
2022 Q1 61 26.7 M $181 M
2021 Q4 57 21.8 M $232 M
2021 Q3 50 21.8 M $401 M