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RPID RAPID MICRO BIOSYSTEMS INC

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CLASS A COM (common), issuer CIK 1380106

29 managers (29 13F filers) reported a position in RPID shares at 2025-09-30, 14,828,987 shares in all. 4 filers opened a position and 4 filers sold out during the quarter.

Managers
29
13F filers
29
New
4
Added
8
Reduced
7
Sold out
4
Shares held by filers
14,828,987

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Bain Capital Life Sciences Investors, L…in group Bain Capital Life Sciences In…8,434,560$28.2M1.87%013F-HRTimelineGroup
ABG-WTT Global Life Science Capital Par…1,848,296$6.17M33.06%013F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC965,018$3.22M<0.01%+60,65513F-HRTimelineGroup
Parkman Healthcare Partners LLC913,443$3.05M0.34%013F-HRTimeline
Schonfeld Strategic Advisors LLC646,579$2.16M0.02%-391,08913F-HRTimeline
Advent International, L.P.in group Advent International, L.P.577,777$1.93M0.04%013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.483,871$1.62M<0.01%+7,05413F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC204,687$684K<0.01%+60813F-HRTimelineGroup
Evernest Financial Advisors, LLC200,234$669K0.19%+156,23413F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC110,187$368K<0.01%-80013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP91,474$306K<0.01%+31,60013F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC62,326$208K0.03%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…58,387$195K<0.01%+6,52813F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP55,642$186K<0.01%+15,25513F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP47,726$159K<0.01%-83313F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC38,140$127K<0.01%new13F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd22,165$74K<0.01%-19,63513F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY20,550$68.6K<0.01%-15,67313F-HR/ATimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC16,922$56.5K<0.01%013F-HRTimelineGroup
Legato Capital Management LLC14,684$49K0.01%013F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…11,461$38.3K<0.01%new13F-HR/ATimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS3,626$12.1K<0.01%new13F-HRTimelineGroup
RESOURCES MANAGEMENT CORP /CT/ /ADV500$2K<0.01%013F-HR/ATimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.300$990<0.01%013F-HRTimelineGroup
UBS Group AGin group UBS Group AG290$969<0.01%-8,40313F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO109$364<0.01%013F-HR/ATimelineGroup
SBI Securities Co., Ltd.17$57<0.01%+213F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/15$50<0.01%-16213F-HR/ATimelineGroup
CITIGROUP INCin group CITIGROUP INC1$3<0.01%new13F-HRTimelineGroup