Cabaletta BioCABA
13F holders, Q4 2025 (December 31)95holders +20
29new positions
8sold out
4famous investors
$2.19avg. 13F price*
At the end of Q4 2025, 95 institutions reported holding Cabaletta Bio Inc. (CABA) in their 13F filings, up 20 from Q3 2025. 29 opened new positions and 8 sold out. The largest holders were T. Rowe Price Investment Management, Inc. ($21.6M), Bain Capital Life Sciences Investors, LLC ($21.2M) and Jennison Associates LLC ($19.5M). 4 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Steve Cohen (0.0% of Point72 Asset Management's portfolio).
- Company
- Cabaletta Bio Inc.
- CUSIP
- 12674W109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 29 | $10.2M |
| Exits | 8 | $8.7M |
All 13F filers, Q3 2025 → Q4 2025: 14,440,617 shares bought and 7,866,487 shares sold, net +6,574,130 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 95 holders
| T. Rowe Price Investment Management, Inc. | 0.01% | Add +17.9% | 9,858,257 | $21.6M |
| Bain Capital Life Sciences Investors, LLC | 1.63% | No change | 9,677,125 | $21.2M |
| Jennison Associates LLC | 0.01% | Add +4.8% | 8,905,699 | $19.5M |
| Adage Capital Partners Gp, L.L.C. | 0.03% | No change | 8,829,758 | $19.3M |
| Vanguard Group Inc. | 0.00% | Add +5.5% | 4,419,458 | $9.7M |
| Cormorant Asset Management, LP | 0.55% | Reduce -12.0% | 4,400,000 | $9.6M |
| Millennium Management | 0.00% | Add +298.5% | 2,736,912 | $6.0M |
| BlackRock, Inc. | 0.00% | Add +43.7% | 2,328,470 | $5.1M |
| Superstring Capital Management LP | 2.64% | Add +45.9% | 2,253,550 | $4.9M |
| Two Sigma Investments, LP | 0.01% | Add +291.1% | 1,839,799 | $4.0M |
| Renaissance Technologies | 0.01% | Add +13.7% | 1,522,583 | $3.3M |
| Morgan Stanley | 0.00% | Reduce -8.9% | 1,343,708 | $2.9M |
| Woodline Partners LP | 0.01% | Reduce -41.5% | 1,250,242 | $2.7M |
| Schonfeld Strategic Advisors LLC | 0.01% | Add +15.3% | 1,204,070 | $2.6M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -15.5% | 1,093,959 | $2.4M |
| Geode Capital Management, LLC | 0.00% | Add +18.0% | 1,085,816 | $2.4M |
| Marshall Wace, LLP | 0.00% | Reduce -27.7% | 959,076 | $2.1M |
| Opaleye Management Inc. | 0.26% | Add +11.3% | 900,000 | $2.0M |
| Ikarian Capital, LLC | 0.26% | New | 900,000 | $2.0M |
| Schroder Investment Management Group | 0.00% | New | 756,637 | $1.6M |
| Two Sigma Advisers, LP | 0.00% | Add +122.9% | 737,900 | $1.6M |
| Burkehill Global Management, LP | 0.11% | No change | 700,000 | $1.5M |
| Jane Street Group, LLC | 0.00% | Add +532.6% | 662,149 | $1.5M |
| Ensign Peak Advisors, Inc | 0.00% | New | 550,000 | $1.2M |
| KVP Capital Advisors, LP | 1.14% | — | 505,431 | $1.1M |
| Dimensional Fund Advisors LP | 0.00% | New | 452,039 | $990K |
| Raiffeisen Bank International AG | 0.01% | Add +28.6% | 450,000 | $968K |
| Goldman Sachs Group Inc. | 0.00% | Add +58.0% | 430,674 | $943K |
| State Street Corp. | 0.00% | Add +12.9% | 425,478 | $932K |
| UBS Group AG | 0.00% | Add +2.6% | 415,677 | $910K |
| 683 Capital Management, LLC | 0.07% | New | 388,562 | $851K |
| Almitas Capital LLC | 0.19% | No change | 387,491 | $849K |
| Qube Research & Technologies Ltd | 0.00% | Add +271.5% | 331,225 | $725K |
| Gsa Capital Partners LLP | 0.06% | New | 303,992 | $666K |
| Boothbay Fund Management, LLC | 0.01% | New | 243,445 | $533K |
| Northern Trust Corp. | 0.00% | Add +5.0% | 238,442 | $522K |
| Barclays PLC | 0.00% | Add +7058.5% | 220,696 | $483K |
| Invesco Ltd. | 0.00% | Add +54.1% | 189,195 | $414K |
| Stonepine Capital Management, LLC | 0.30% | New | 171,100 | $375K |
| XTX Topco Ltd | 0.01% | Reduce -45.3% | 155,387 | $340K |
| Graham Capital Management, L.P. | 0.02% | New | 151,451 | $332K |
| Squarepoint Ops LLC | 0.00% | Add +1156.3% | 149,094 | $327K |
| Hudson Bay Capital Management LP | 0.00% | New | 138,729 | $304K |
| Susquehanna International Group, LLP | 0.00% | Reduce -62.8% | 138,281 | $303K |
| Bridgeway Capital Management, LLC | 0.01% | Add +36.6% | 130,675 | $286K |
| OMERS ADMINISTRATION Corp | 0.00% | New | 95,400 | $209K |
| Letko, Brosseau & Associates Inc. | 0.00% | New | 90,475 | $198K |
| TD Asset Management Inc | 0.00% | No change | 88,600 | $194K |
| Citigroup Inc. | 0.00% | Add +20858.5% | 73,774 | $162K |
| Dynamic Technology Lab Private Ltd | 0.03% | New | 66,789 | $146K |
| Quadrature Capital Ltd | 0.00% | Add +54.7% | 66,377 | $145K |
| American Century Companies Inc. | 0.00% | Add +388.5% | 58,777 | $129K |
| Point72 Asset Management | 0.00% | New | 56,648 | $124K |
| Matauro, LLC | 0.02% | New | 55,108 | $121K |
| Bank of New York Mellon Corp | 0.00% | Add +13.1% | 54,047 | $118K |
| Balyasny Asset Management L.P. | 0.00% | New | 51,552 | $113K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 50,824 | $111K |
| Jefferies Financial Group Inc. | 0.00% | Reduce -5.0% | 45,125 | $99K |
| LPL Financial LLC | 0.00% | New | 42,615 | $93K |
| Lighthouse Investment Partners, LLC | 0.00% | New | 38,880 | $85K |
| Citadel Advisors | 0.00% | Reduce -95.3% | 33,502 | $73K |
| SG Americas Securities, LLC | 0.00% | Add +44.0% | 30,629 | $67K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +594.9% | 30,345 | $66K |
| Fred Alger Management, LLC | 0.00% | Reduce -53.1% | 28,021 | $61K |
| Mercer Global Advisors Inc. | 0.00% | New | 26,510 | $58K |
| Callan Family Office, LLC | 0.00% | New | 22,575 | $49K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | Add +1.1% | 22,384 | $49K |
| Jones Financial Companies LLLP | 0.00% | Add +3.3% | 20,660 | $45K |
| Clear Harbor Asset Management, LLC | 0.00% | New | 19,500 | $43K |
| ANTIPODES PARTNERS Ltd | 0.00% | New | 17,187 | $38K |
| China Universal Asset Management Co., Ltd. | 0.00% | New | 15,686 | $34K |
| CRA Financial Services, LLC | 0.00% | No change | 15,000 | $33K |
| Private Advisor Group, LLC | 0.00% | New | 14,725 | $32K |
| Bank of America Corp. | 0.00% | Reduce -94.6% | 14,392 | $32K |
| FMR LLC | 0.00% | Reduce -7.3% | 13,045 | $29K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -0.6% | 13,011 | $28K |
| HB Wealth Management, LLC | 0.00% | New | 10,000 | $22K |
| JPMorgan Chase & Co. | 0.00% | Reduce -98.2% | 9,805 | $21K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | New | 4,678 | $10K |
| PNC Financial Services Group, Inc. | 0.00% | Add +666.7% | 4,600 | $10K |
| Canada Pension Plan Investment Board | 0.00% | New | 3,500 | $8K |
| Wells Fargo & Company | 0.00% | Reduce -33.3% | 2,000 | $4K |
| GF Fund Management Co. LTD. | 0.00% | New | 1,891 | $4K |
| BNP Paribas Financial Markets | 0.00% | Reduce -10.4% | 1,640 | $4K |
| Flagship Harbor Advisors, LLC | 0.00% | New | 1,000 | $2K |
| Russell Investments Group, Ltd. | 0.00% | No change | 939 | $2K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 811 | $2K |
| Truvestments Capital LLC | 0.00% | No change | 680 | $1K |
| Federation des caisses Desjardins du Quebec | 0.00% | No change | 340 | $745 |
| SBI Securities Co., Ltd. | 0.00% | Reduce -30.7% | 316 | $692 |
| Northwestern Mutual Wealth Management Co. | 0.00% | Add +2900.0% | 60 | $131 |
| Optiver Holding B.V. | 0.00% | No change | 24 | $53 |
| Arax Advisory Partners | 0.00% | No change | 10 | $22 |
| Royal Bank of Canada | 0.00% | Reduce -99.9% | 123 | $0 |
| 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.