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Disclosery

RPID RAPID MICRO BIOSYSTEMS INC

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CLASS A COM (common), issuer CIK 1380106

32 managers (34 13F filers) reported a position in RPID shares at 2026-06-30, 17,523,265 shares in all. 5 filers opened a position and 16 filers sold out during the quarter.

Managers
32
13F filers
34
New
5
Added
9
Reduced
13
Sold out
16
Shares held by filers
17,523,265

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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$14.6M0.87%013F-HRTimelineGroup
ARMISTICE CAPITAL, LLC3,328,000$5.76M0.16%new13F-HRTimeline
ABG-WTT Global Life Science Capital Par…1,848,296$3.2M37.39%013F-HRTimeline
VANGUARD GROUP INCgroup of 3 filers holding1,104,148$1.91M+312Timeline
Evernest Financial Advisors, LLC506,000$875K0.18%+73,49013F-HRTimeline
Advent International, L.P.in group Advent International, L.P.379,794$657K<0.01%-172,58313F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC362,696$627K0.08%-521,23513F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC236,599$409K<0.01%-46,68113F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC228,041$395K<0.01%-19,13613F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC212,101$367K<0.01%+85,48413F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.189,832$328K<0.01%+32,60013F-HRTimelineGroup
Legato Capital Management LLC119,534$207K0.02%-155,39013F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP104,192$180K<0.01%+16,60313F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP93,874$162K<0.01%013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd79,727$138K<0.01%+18,65713F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO66,869$116K<0.01%-217,94713F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP42,106$72.8K<0.01%-6,17313F-HRTimelineGroup
ALGERT GLOBAL LLC38,307$66.3K<0.01%+15,12613F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY27,587$47.7K<0.01%-1,62013F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC25,931$44.9K<0.01%-106,99413F-HRTimelineGroup
HRT FINANCIAL LP23,093$39K<0.01%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC16,142$27.9K<0.01%new13F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.14,300$24.7K<0.01%+30013F-HRTimelineGroup
NANO CAP NEW MILLENNIUM GROWTH FUND L P12,500$21.6K0.02%013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC11,638$20.1K<0.01%-5,28413F-HRTimelineGroup
Larson Financial Group LLC8,395$14.5K<0.01%+2,90413F-HRTimeline
UBS Group AGin group UBS Group AG6,607$11.4K<0.01%-4,64513F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,900$3.29K<0.01%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC337$583<0.01%-21,25813F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO109$189<0.01%013F-HRTimelineGroup
Caitong International Asset Management …35$61<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.15$26<0.01%013F-HRTimeline