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Disclosery

RPID RAPID MICRO BIOSYSTEMS INC

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CLASS A COM (common), issuer CIK 1380106

44 managers (46 13F filers) reported a position in RPID shares at 2026-03-31, 15,839,879 shares in all. 10 filers opened a position and 8 filers sold out during the quarter.

Managers
44
13F filers
46
New
10
Added
17
Reduced
9
Sold out
8
Shares held by filers
15,839,879

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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$19.1M1.73%013F-HRTimelineGroup
ABG-WTT Global Life Science Capital Par…1,848,296$4.2M34.13%013F-HRTimeline
VANGUARD GROUP INCgroup of 3 filers holding1,103,836$2.51MnewTimeline
ESSEX INVESTMENT MANAGEMENT CO LLC883,931$2.01M0.32%+821,60513F-HRTimeline
Advent International, L.P.in group Advent International, L.P.552,377$1.25M0.03%-25,40013F-HRTimelineGroup
Evernest Financial Advisors, LLC432,510$1.02M0.21%+307,51013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO284,816$647K<0.01%+191,20013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC283,280$643K<0.01%+166,77813F-HRTimelineGroup
Legato Capital Management LLC274,924$624K0.06%+260,24013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC247,177$561K<0.01%+29,60913F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…212,114$481K<0.01%+39,87913F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.157,232$357K<0.01%+56613F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC132,925$302K<0.01%+27,62413F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC126,617$287K<0.01%+10,99013F-HRTimeline
683 Capital Management, LLCin group 683 Capital Management, LLC120,773$274K0.03%013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP93,874$213K<0.01%+2,40013F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP87,589$199K<0.01%+31,40713F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC71,912$163K<0.01%+16,60613F-HRTimelineGroup
FIFTH LANE CAPITAL, LP71,000$161K0.2%+53,30013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd61,070$139K<0.01%new13F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP48,279$110K<0.01%+7,79213F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/31,014$70.4K<0.01%+18,08513F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY29,207$66.3K<0.01%-2,18213F-HRTimelineGroup
ALGERT GLOBAL LLC23,181$52.6K<0.01%new13F-HR/ATimeline
Temasek Holdings (Private) Ltdin group Temasek Holdings (Private) Ltd21,818$49.5K<0.01%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC21,595$49K<0.01%-3,26413F-HRTimelineGroup
Catalyst Funds Management Pty Ltd21,200$48.1K0.01%new13F-HRTimeline
Graham Capital Management, L.P.20,000$45.4K<0.01%new13F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC16,922$38.4K<0.01%013F-HRTimelineGroup
OMERS ADMINISTRATION Corp15,900$36.1K<0.01%-8,50013F-HRTimeline
Qube Research & Technologies Ltd15,410$35K<0.01%-17,68913F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP15,224$34.6K<0.01%-47,68713F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.14,000$31.8K<0.01%-30013F-HRTimelineGroup
BANCO BILBAO VIZCAYA ARGENTARIA, S.A.12,691$29K<0.01%new13F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…12,524$28.4K<0.01%new13F-HRTimelineGroup
NANO CAP NEW MILLENNIUM GROWTH FUND L P12,500$28.4K0.03%-12,50013F-HRTimeline
UBS Group AGin group UBS Group AG11,252$25.5K<0.01%+11,21113F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS9,327$21.2K<0.01%-1,77313F-HRTimelineGroup
Larson Financial Group LLC5,491$12.5K<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA719$2K<0.01%new13F-HRTimelineGroup
RESOURCES MANAGEMENT CORP /CT/ /ADV500$1K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC188$427<0.01%new13F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO109$242<0.01%013F-HR/ATimelineGroup
SBI Securities Co., Ltd.15$34<0.01%013F-HRTimeline