13F

Stock

Rapid Micro Biosystems, Inc.

RPID · held by 42 managers

Reported value

$42.5M

Holders

42

+1 new · −1 exited

Holders’ est. mark

−$9.05K

Price effect on 2 books still in the name

Largest holder

$24.5M

Bain Capital Life Sciences Investors, LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Bain Capital Life Sciences Investors, LLC8.43M$24.5MHeld
ABG-WTT Global Life Science Capital Partners GP Ltd1.85M$5.36MHeld
Vanguard978.8K$2.84MHeld
Advent International, L.P.577.8K$1.68MHeld
Parkman Healthcare Partners LLC354.5K$1.03MHeld
Schonfeld Strategic Advisors LLC352.4K$1.02MHeld
GEODE CAPITAL MANAGEMENT, LLC217.6K$631.1KHeld
SUSQUEHANNA INTERNATIONAL GROUP, LLP172.2K$499.5KHeld
Evernest Financial Advisors, LLC125K$468.8KHeld
BlackRock, Inc.156.7K$454.3KHeld
Citadel126.5K$367KHeld
683 Capital Management, LLC120.8K$350.2KHeld
MILLENNIUM MANAGEMENT LLC116.5K$337.9KHeld
Renaissance Technologies115.6K$335.3KHeld
JANE STREET GROUP, LLC105.3K$305.4KHeld
SEI INVESTMENTS CO93.6K$271.5KHeld
State Street91.5K$265.3KHeld
Informed Momentum Co LLC77.2K$223.8KHeld
MARSHALL WACE, LLP62.9K$182.4KHeld
ESSEX INVESTMENT MANAGEMENT CO LLC62.3K$180.7KHeld
DIMENSIONAL FUND ADVISORS LP56.2K$162.5KHeld
GOLDMAN SACHS GROUP INC55.3K$160.4KHeld
NORTHERN TRUST CORP40.5K$117.4KHeld
Qube Research & Technologies Ltd33.1K$96KHeld
MORGAN STANLEY31.4K$91K−$9.04KAdded$22.4K
Point72 Asset Management, L.P.30.4K$88.1KHeld
NANO CAP NEW MILLENNIUM GROWTH FUND L P25K$72.5KHeld
BARCLAYS PLC24.9K$72.1KNew
OMERS ADMINISTRATION Corp24.4K$70.8KHeld
FIFTH LANE CAPITAL, LP17.7K$51.3KHeld
AMERICAN CENTURY COMPANIES INC16.9K$49.1KHeld
Lighthouse Investment Partners, LLC15.7K$45.6KHeld
Legato Capital Management LLC14.7K$42.6KHeld
OSAIC HOLDINGS, INC.14.3K$41.5KHeld
BANK OF AMERICA CORP /DE/12.9K$37.5K−$7Added$37.4K
BNP PARIBAS FINANCIAL MARKETS11.1K$32.2KHeld
CITIGROUP INC4.83K$14KHeld
Tower Research Capital LLC (TRC)317$919Held
JPMORGAN CHASE & CO109$316Held
UBS Group AG41$119Held
SBI Securities Co., Ltd.15$44Held
RESOURCES MANAGEMENT CORP /CT/ /ADV500$1Held

Who left

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.