13F

Stock

Cabaletta Bio, Inc.

CABA · held by 95 managers

Reported value

$142.2M

Holders

95

+2 new · −0 exited

Holders’ est. mark

−$204.2K

Price effect on 3 books still in the name

Largest holder

$21.2M

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, LLC9.68M$21.2MHeld
JENNISON ASSOCIATES LLC8.91M$19.5MHeld
ADAGE CAPITAL PARTNERS GP, L.L.C.8.83M$19.3MHeld
Vanguard4.42M$9.68MHeld
Cormorant Asset Management, LP4.4M$9.64MHeld
MILLENNIUM MANAGEMENT LLC2.74M$5.99MHeld
BlackRock, Inc.2.33M$5.1MHeld
SUPERSTRING CAPITAL MANAGEMENT LP2.25M$4.94MHeld
TWO SIGMA INVESTMENTS, LP1.84M$4.03MHeld
Renaissance Technologies1.52M$3.33MHeld
MORGAN STANLEY1.34M$2.94M−$201.6KCut−$508K
Woodline Partners LP1.25M$2.74MHeld
Schonfeld Strategic Advisors LLC1.2M$2.64MHeld
GEODE CAPITAL MANAGEMENT, LLC1.09M$2.38MHeld
MARSHALL WACE, LLP959.1K$2.1MHeld
Ikarian Capital, LLC900K$1.97MHeld
Opaleye Management Inc.900K$1.97MHeld
SCHRODER INVESTMENT MANAGEMENT GROUP756.6K$1.63MHeld
TWO SIGMA ADVISERS, LP737.9K$1.62MHeld
BURKEHILL GLOBAL MANAGEMENT, LP700K$1.53MHeld
JANE STREET GROUP, LLC662.1K$1.45MHeld
Ensign Peak Advisors, Inc550K$1.2MHeld
KVP Capital Advisors, LP505.4K$1.11MHeld
DIMENSIONAL FUND ADVISORS LP452K$990KHeld
Raiffeisen Bank International AG450K$967.5KHeld
GOLDMAN SACHS GROUP INC430.7K$943.2KHeld
State Street425.5K$931.8KHeld
UBS Group AG415.7K$910.3KHeld
683 Capital Management, LLC388.6K$851KHeld
Almitas Capital LLC387.5K$848.6KHeld
Qube Research & Technologies Ltd331.2K$725.4KHeld
BOOTHBAY FUND MANAGEMENT, LLC243.4K$533.1KHeld
NORTHERN TRUST CORP238.4K$522.2KHeld
BARCLAYS PLC220.7K$483.3K−$463Added$476.1K
Invesco Ltd.189.2K$414.3KHeld
Stonepine Capital Management, LLC171.1K$374.7KHeld
XTX Topco Ltd155.4K$340.3KHeld
Graham Capital Management, L.P.151.5K$331.7KHeld
Squarepoint Ops LLC149.1K$326.5KHeld
Hudson Bay Capital Management LP138.7K$303.8KNew
SUSQUEHANNA INTERNATIONAL GROUP, LLP138.3K$302.8KHeld
BRIDGEWAY CAPITAL MANAGEMENT, LLC130.7K$286.2KHeld
OMERS ADMINISTRATION Corp95.4K$208.9KHeld
LETKO, BROSSEAU & ASSOCIATES INC90.5K$198.1KHeld
TD Asset Management Inc88.6K$194KHeld
CITIGROUP INC73.8K$161.6KHeld
Dynamic Technology Lab Private Ltd66.8K$146KHeld
Quadrature Capital Ltd66.4K$145.4KHeld
AMERICAN CENTURY COMPANIES INC58.8K$128.7KHeld
Point72 Asset Management, L.P.56.6K$124.1KHeld
MATAURO, LLC55.1K$120.7KHeld
Bank of New York Mellon Corp54K$118.4KHeld
Balyasny Asset Management L.P.51.6K$112.9KHeld
CHARLES SCHWAB INVESTMENT MANAGEMENT INC50.8K$111.3KHeld
Jefferies Financial Group Inc.45.1K$98.8KHeld
LPL Financial LLC42.6K$93.3KHeld
Lighthouse Investment Partners, LLC38.9K$85.1KHeld
Citadel33.5K$73.4KHeld
Tower Research Capital LLC (TRC)30.3K$66.5KHeld
FRED ALGER MANAGEMENT, LLC28K$61.4KHeld
MERCER GLOBAL ADVISORS INC /ADV26.5K$58.1KHeld
Callan Family Office, LLC22.6K$49.4KHeld
Vanguard Personalized Indexing Management, LLC22.4K$49KHeld
JONES FINANCIAL COMPANIES LLLP20.7K$45.2KHeld
Clear Harbor Asset Management, LLC19.5K$42.7KHeld
ANTIPODES PARTNERS Ltd17.2K$37.6KHeld
China Universal Asset Management Co., Ltd.15.7K$34.4KHeld
CRA Financial Services, LLC15K$32.9KHeld
Private Advisor Group, LLC14.7K$32.2KHeld
BANK OF AMERICA CORP /DE/14.4K$31.5K−$2.16KCut−$595.7K
Fidelity13K$28.6KHeld
MANUFACTURERS LIFE INSURANCE COMPANY, THE13K$28KHeld
HB Wealth Management, LLC10K$21.9KHeld
T. Rowe Price Investment Management, Inc.9.86M$21.6KHeld
JPMORGAN CHASE & CO9.8K$21.5KHeld
Mirae Asset Global Investments Co., Ltd.4.68K$10.2KHeld
PNC Financial Services Group, Inc.4.6K$10.1KHeld
CANADA PENSION PLAN INVESTMENT BOARD3.5K$7.67KHeld
WELLS FARGO & COMPANY/MN2K$4.38KHeld
GF FUND MANAGEMENT CO. LTD.1.89K$4.14KHeld
BNP PARIBAS FINANCIAL MARKETS1.64K$3.59KHeld
PRICE T ROWE ASSOCIATES INC /MD/1.09M$2.4KHeld
FLAGSHIP HARBOR ADVISORS, LLC1K$2.19KNew
Russell Investments Group, Ltd.939$2.06KHeld
NISA INVESTMENT ADVISORS, LLC811$1.78KHeld
Truvestments Capital LLC680$1.49KHeld
Federation des caisses Desjardins du Quebec340$745Held
SBI Securities Co., Ltd.316$692Held
GSA CAPITAL PARTNERS LLP304K$666Held
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO60$131Held
SG Americas Securities, LLC30.6K$67Held
Optiver Holding B.V.24$53Held
Arax Advisory Partners10$22Held
ROYAL BANK OF CANADA123$0Held
Covestor Ltd34$0Held

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.