Cabaletta BioCABA

13F holders, Q2 2025 (June 30)
86holders −6
26new positions
33sold out
4famous investors
$1.52avg. 13F price*

At the end of Q2 2025, 86 institutions reported holding Cabaletta Bio Inc. (CABA) in their 13F filings, down 6 from Q1 2025. 26 opened new positions and 33 sold out. The largest holders were Bain Capital Life Sciences Investors, LLC ($14.7M), Adage Capital Partners Gp, L.L.C. ($13.4M) and T. Rowe Price Investment Management, Inc. ($10.3M). 4 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).

Company
Cabaletta Bio Inc.
CUSIP
12674W109
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150200 Q1 2024: 159Q1 2024Q2 2024: 142Q2 2024Q3 2024: 120Q3 2024Q4 2024: 108Q4 2024Q1 2025: 92Q1 2025Q2 2025: 86Q2 2025Q3 2025: 75Q3 2025Q4 2025: 95Q4 2025Q1 2026: 108Q1 2026Q2 2026: 139Q2 2026

Total Exit/New Position Q1 2025 → Q2 2025

InstitutionsTotal Value
New Positions26$33.4M
Exits33$2.7M

All 13F filers, Q1 2025 → Q2 2025: 46,279,805 shares bought and 9,819,028 shares sold, net +36,460,777 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 86 holders

Bain Capital Life Sciences Investors, LLC 1.84% Add +250.5% 9,677,125 $14.7M
Adage Capital Partners Gp, L.L.C. 0.02% Add +142.9% 8,829,758 $13.4M
T. Rowe Price Investment Management, Inc. 0.01% Add +71.1% 6,793,788 $10.3M
Jennison Associates LLC 0.01% Add +147.4% 6,020,167 $9.2M
Cormorant Asset Management, LP 0.57% New 5,000,000 $7.6M
Alyeska Investment Group, L.P. 0.03% New 4,800,000 $7.3M
Vanguard Group Inc. 0.00% Add +21.3% 3,450,727 $5.2M
Heights Capital Management, Inc. 1.55% New 3,144,106 $4.8M
T. Rowe Price Associates Inc. 0.00% Add +346.9% 2,187,039 $3.3M
Jefferies Financial Group Inc. 0.05% New 1,997,208 $3.0M
Burkehill Global Management, LP 0.21% New 1,900,000 $2.9M
Anson Funds Management LP 0.51% New 1,822,830 $2.8M
Citadel Advisors 0.00% Add +482180.0% 1,687,980 $2.6M
Schonfeld Strategic Advisors LLC 0.02% Reduce -10.7% 1,484,836 $2.3M
Morgan Stanley 0.00% Reduce -22.5% 1,324,806 $2.0M
Woodline Partners LP 0.01% New 1,218,464 $1.9M
Blue Owl Capital Holdings LP 0.55% New 1,125,000 $1.7M
Superstring Capital Management LP 2.01% Add +131.1% 1,060,764 $1.6M
BlackRock, Inc. 0.00% Reduce -71.9% 970,601 $1.5M
Millennium Management 0.00% Add +406.4% 855,330 $1.3M
Geode Capital Management, LLC 0.00% Reduce -51.5% 553,462 $842K
Cantor Fitzgerald, L. P. 0.02% Reduce -64.1% 532,500 $809K
Bank of America Corp. 0.00% Reduce -49.4% 498,243 $757K
UBS Group AG 0.00% Reduce -3.7% 472,042 $718K
Two Sigma Advisers, LP 0.00% Reduce -12.3% 413,600 $629K
Almitas Capital LLC 0.14% No change 367,491 $559K
Goldman Sachs Group Inc. 0.00% Add +6.9% 353,307 $537K
Raiffeisen Bank International AG 0.01% No change 300,000 $531K
Federated Hermes, Inc. 0.00% Add +0.3% 344,540 $524K
Prudential Financial Inc. 0.00% Reduce -1.2% 284,000 $432K
AXA S.A. 0.00% Add +0.2% 270,516 $411K
Two Sigma Investments, LP 0.00% Reduce -21.5% 252,357 $384K
Jane Street Group, LLC 0.00% New 238,325 $362K
Cubist Systematic Strategies, LLC 0.00% New 235,270 $358K
State Street Corp. 0.00% Reduce -76.8% 217,967 $331K
Marshall Wace, LLP 0.00% Add +470.7% 190,957 $290K
Northern Trust Corp. 0.00% Reduce -66.7% 133,020 $202K
Renaissance Technologies 0.00% Add +1056.9% 126,100 $192K
HRT Financial LP 0.00% New 124,395 $189K
Susquehanna International Group, LLP 0.00% Add +114.0% 123,625 $188K
XTX Topco Ltd 0.01% New 97,260 $148K
Thrivent Financial for Lutherans 0.00% No change 95,327 $145K
TD Asset Management Inc 0.00% No change 88,600 $135K
TCG Crossover Management, LLC 0.02% No change 86,795 $132K
Invesco Ltd. 0.00% Add +37.5% 84,831 $129K
JPMorgan Chase & Co. 0.00% Reduce -67.9% 80,796 $123K
Squarepoint Ops LLC 0.00% New 71,441 $109K
Citigroup Inc. 0.00% Add +98.7% 62,499 $95K
Fred Alger Management, LLC 0.00% Reduce -87.5% 59,813 $91K
Jain Global LLC 0.00% New 56,160 $85K
Tower Research Capital LLC (TRC) 0.00% Add +695.6% 51,036 $78K
Charles Schwab Investment Management Inc. 0.00% Reduce -68.3% 50,621 $77K
BNP Paribas Financial Markets 0.00% Reduce -20.1% 49,066 $75K
Bank of New York Mellon Corp 0.00% Reduce -69.2% 47,810 $73K
Bridgeway Capital Management, LLC 0.00% No change 45,675 $69K
MYDA Advisors LLC 0.02% New 40,000 $61K
Manufacturers Life Insurance Company, The 0.00% Reduce -30.3% 39,770 $60K
Point72 Asia (Singapore) Pte. Ltd. 0.01% New 34,767 $53K
AQR Capital Management 0.00% Reduce -56.6% 32,129 $49K
Vanguard Personalized Indexing Management, LLC 0.00% Add +28.7% 24,948 $38K
SG Americas Securities, LLC 0.00% Reduce -33.7% 24,048 $37K
Catalyst Funds Management Pty Ltd 0.01% New 21,000 $32K
Two Sigma Securities, LLC 0.00% New 16,491 $25K
Rangeley Capital, LLC 0.03% New 16,000 $24K
FMR LLC 0.00% Add +271.4% 15,456 $23K
Acadian Asset Management LLC 0.00% Reduce -97.8% 15,141 $23K
Hudson Bay Capital Management LP 0.00% New 13,070 $20K
DRW Securities, LLC 0.00% New 12,840 $20K
CRA Financial Services, LLC 0.00% No change 11,000 $17K
Barclays PLC 0.00% Reduce -82.8% 9,737 $15K
Wells Fargo & Company 0.00% Reduce -79.1% 6,686 $10K
SBI Securities Co., Ltd. 0.00% Add +123.5% 6,516 $10K
Summit Securities Group LLC 0.00% New 4,824 $7K
Point72 (DIFC) Ltd 0.00% New 2,432 $4K
Truvestments Capital LLC 0.00% No change 1,973 $3K
Cwm, LLC 0.00% Reduce -74.2% 1,597 $2K
PNC Financial Services Group, Inc. 0.00% Add +750.0% 1,309 $2K
Rise Advisors, LLC 0.00% New 1,083 $2K
Russell Investments Group, Ltd. 0.00% New 939 $1K
Nisa Investment Advisors, LLC 0.00% Add +370.1% 912 $1K
Federation des caisses Desjardins du Quebec 0.00% No change 340 $517
Mid-American Wealth Advisory Group, Inc. 0.00% New 91 $138
EverSource Wealth Advisors, LLC 0.00% Reduce -54.4% 41 $62
True Wealth Design, LLC 0.00% Reduce -73.0% 17 $26
Royal Bank of Canada 0.00% Reduce -97.3% 63 $0
Covestor Ltd 0.00% Reduce -8.1% 34 $0

"% of holder's portfolio" is CABA's weight in each manager's 13F, not the share of Cabaletta Bio Inc. the manager owns.