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

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.