Cabaletta BioCABA
13F holders, Q3 2025 (September 30)75holders −11
10new positions
21sold out
3famous investors
$2.34avg. 13F price*
At the end of Q3 2025, 75 institutions reported holding Cabaletta Bio Inc. (CABA) in their 13F filings, down 11 from Q2 2025. 10 opened new positions and 21 sold out. The largest holders were Bain Capital Life Sciences Investors, LLC ($22.6M), Adage Capital Partners Gp, L.L.C. ($20.7M) and Jennison Associates LLC ($19.9M). 3 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Cabaletta Bio Inc.
- CUSIP
- 12674W109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 10 | $2.4M |
| Exits | 21 | $6.9M |
All 13F filers, Q2 2025 → Q3 2025: 12,506,627 shares bought and 16,057,893 shares sold, net −3,551,266 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 75 holders
| Bain Capital Life Sciences Investors, LLC | 1.50% | No change | 9,677,125 | $22.6M |
| Adage Capital Partners Gp, L.L.C. | 0.03% | No change | 8,829,758 | $20.7M |
| Jennison Associates LLC | 0.01% | Add +41.1% | 8,497,537 | $19.9M |
| T. Rowe Price Investment Management, Inc. | 0.01% | Add +23.1% | 8,362,489 | $19.6M |
| Cormorant Asset Management, LP | 0.81% | No change | 5,000,000 | $11.7M |
| Vanguard Group Inc. | 0.00% | Add +21.4% | 4,190,759 | $9.8M |
| Woodline Partners LP | 0.02% | Add +75.3% | 2,135,348 | $5.0M |
| Heights Capital Management, Inc. | 1.62% | Reduce -33.7% | 2,084,202 | $4.9M |
| BlackRock, Inc. | 0.00% | Add +67.0% | 1,620,872 | $3.8M |
| Superstring Capital Management LP | 3.56% | Add +45.6% | 1,544,525 | $3.6M |
| Morgan Stanley | 0.00% | Add +11.3% | 1,474,676 | $3.5M |
| Renaissance Technologies | 0.00% | Add +962.2% | 1,339,423 | $3.1M |
| Marshall Wace, LLP | 0.00% | Add +594.4% | 1,326,043 | $3.1M |
| Alyeska Investment Group, L.P. | 0.01% | Reduce -72.9% | 1,300,000 | $3.0M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -40.8% | 1,294,949 | $3.0M |
| Schonfeld Strategic Advisors LLC | 0.02% | Reduce -29.7% | 1,044,169 | $2.4M |
| Geode Capital Management, LLC | 0.00% | Add +66.3% | 920,340 | $2.2M |
| Opaleye Management Inc. | 0.27% | New | 808,882 | $1.9M |
| Citadel Advisors | 0.00% | Reduce -58.2% | 705,465 | $1.7M |
| Burkehill Global Management, LP | 0.10% | Reduce -63.2% | 700,000 | $1.6M |
| Millennium Management | 0.00% | Reduce -19.7% | 686,813 | $1.6M |
| JPMorgan Chase & Co. | 0.00% | Add +565.4% | 537,649 | $1.3M |
| Two Sigma Investments, LP | 0.00% | Add +86.4% | 470,475 | $1.1M |
| UBS Group AG | 0.00% | Reduce -14.2% | 405,120 | $948K |
| Almitas Capital LLC | 0.21% | Add +5.4% | 387,491 | $907K |
| State Street Corp. | 0.00% | Add +72.9% | 376,800 | $882K |
| Susquehanna International Group, LLP | 0.00% | Add +201.0% | 372,108 | $871K |
| Raiffeisen Bank International AG | 0.01% | Add +16.7% | 350,000 | $833K |
| Two Sigma Advisers, LP | 0.00% | Reduce -20.0% | 331,000 | $775K |
| XTX Topco Ltd | 0.03% | Add +192.3% | 284,299 | $665K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -22.8% | 272,596 | $638K |
| Bank of America Corp. | 0.00% | Reduce -46.2% | 268,058 | $627K |
| Northern Trust Corp. | 0.00% | Add +70.6% | 226,987 | $531K |
| Acadian Asset Management LLC | 0.00% | Add +1131.9% | 186,521 | $433K |
| Invesco Ltd. | 0.00% | Add +44.8% | 122,800 | $287K |
| Federated Hermes, Inc. | 0.00% | Reduce -67.5% | 112,028 | $262K |
| Jane Street Group, LLC | 0.00% | Reduce -56.1% | 104,662 | $245K |
| Bridgeway Capital Management, LLC | 0.00% | Add +109.5% | 95,675 | $224K |
| Royal Bank of Canada | 0.00% | Add +145492.1% | 91,723 | $214K |
| Qube Research & Technologies Ltd | 0.00% | New | 89,157 | $209K |
| TD Asset Management Inc | 0.00% | No change | 88,600 | $207K |
| Fred Alger Management, LLC | 0.00% | No change | 59,813 | $140K |
| Charles Schwab Investment Management Inc. | 0.00% | Add +0.4% | 50,824 | $119K |
| Bank of New York Mellon Corp | 0.00% | No change | 47,810 | $112K |
| Jefferies Financial Group Inc. | 0.00% | Reduce -97.6% | 47,500 | $111K |
| Quadrature Capital Ltd | 0.00% | New | 42,912 | $100K |
| Cubist Systematic Strategies, LLC | 0.00% | Reduce -84.0% | 37,744 | $88K |
| Susquehanna Portfolio Strategies, LLC | 0.00% | New | 33,937 | $79K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | Reduce -11.2% | 22,151 | $52K |
| SG Americas Securities, LLC | 0.00% | Reduce -11.6% | 21,264 | $50K |
| Jones Financial Companies LLLP | 0.00% | New | 20,007 | $47K |
| CRA Financial Services, LLC | 0.00% | Add +36.4% | 15,000 | $35K |
| FMR LLC | 0.00% | Reduce -9.0% | 14,064 | $33K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -67.1% | 13,084 | $31K |
| American Century Companies Inc. | 0.00% | New | 12,032 | $28K |
| Squarepoint Ops LLC | 0.00% | Reduce -83.4% | 11,868 | $28K |
| Rangeley Capital, LLC | 0.03% | Reduce -29.4% | 11,300 | $26K |
| Caitong International Asset Management Co., Ltd | 0.01% | New | 8,983 | $21K |
| Point72 Asia (Singapore) Pte. Ltd. | 0.00% | Reduce -74.3% | 8,935 | $21K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -91.4% | 4,367 | $10K |
| Barclays PLC | 0.00% | Reduce -68.3% | 3,083 | $7K |
| Wells Fargo & Company | 0.00% | Reduce -55.1% | 3,000 | $7K |
| BNP Paribas Financial Markets | 0.00% | Reduce -96.3% | 1,831 | $4K |
| Rise Advisors, LLC | 0.00% | No change | 1,083 | $3K |
| Russell Investments Group, Ltd. | 0.00% | No change | 939 | $2K |
| Nisa Investment Advisors, LLC | 0.00% | Reduce -11.1% | 811 | $2K |
| Truvestments Capital LLC | 0.00% | Reduce -65.5% | 680 | $2K |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -54.2% | 600 | $1K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -93.0% | 456 | $1K |
| Citigroup Inc. | 0.00% | Reduce -99.4% | 352 | $824 |
| Federation des caisses Desjardins du Quebec | 0.00% | No change | 340 | $796 |
| Optiver Holding B.V. | 0.00% | New | 24 | $56 |
| Arax Advisory Partners | 0.00% | New | 10 | $23 |
| Northwestern Mutual Wealth Management Co. | 0.00% | New | 2 | $5 |
| Covestor Ltd | 0.00% | No change | 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.