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

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.