Cabaletta Bio, Inc.
CABA- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001759138
No open-market purchases or sales by Cabaletta Bio, Inc. insiders were filed in the last 90 days; 139 institutions reported holding it in 13F filings for Q2 2026, worth $490.4M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Cabaletta Bio, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 139
- +31 vs. Q1 2026
- Shares held
- 157.9M
- +73.2M (+86.4%) vs. Q1 2026
- Total value
- $490.4M
- +$262.9M (+115.6%) vs. Q1 2026
- New holders
- 54
- 50 more added
- Sold out
- 23
- 20 more reduced
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CABA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 139 | $490.4M |
| Q1 2026 | 108 | $227.5M |
| Q4 2025 | 95 | $166.9M |
| Q3 2025 | 75 | $162.0M |
| Q2 2025 | 86 | $110.7M |
| Q1 2025 | 93 | $50.3M |
| Q4 2024 | 109 | $87.2M |
| Q3 2024 | 120 | $226.7M |
| Q2 2024 | 142 | $380.0M |
| Q1 2024 | 159 | $870.9M |
| Q4 2023 | 128 | $1.10B |
| Q3 2023 | 97 | $622.6M |
| Q2 2023 | 84 | $470.5M |
| Q1 2023 | 72 | $203.9M |
| Q4 2022 | 61 | $183.9M |
| Q3 2022 | 54 | $7.76M |
| Q2 2022 | 55 | $17.8M |
| Q1 2022 | 62 | $36.9M |
| Q4 2021 | 66 | $68.9M |
| Q3 2021 | 61 | $211.3M |
| Q2 2021 | 63 | $135.5M |
| Q1 2021 | 68 | $180.1M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Cabaletta Bio, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Nuveen, LLC | 646,345 | $2.01M | 0.00% | +646,345 | New |
| Gsa Capital Partners LLP | 668,563 | $2.08M | 0.13% | +106,837+19.0% | Added |
| Ikarian Capital, LLC | 700,000 | $2.18M | 0.36% | −200,000−22.2% | Reduced |
| Burkehill Global Management, LP | 700,000 | $2.18M | 0.08% | 00.0% | Unchanged |
| Blue Owl Capital Holdings LP | 714,710 | $2.22M | 0.34% | +714,710 | New |
| Heights Capital Management, Inc | 755,626 | $2.35M | 0.54% | +755,626 | New |
| Cantor Fitzgerald, L. P. | 800,001 | $2.49M | 0.05% | +35,001+4.6% | Added |
| Ameriprise Financial Inc | 828,145 | $2.58M | 0.00% | +828,145 | New |
| Schroder Investment Management Group | 856,637 | $2.66M | 0.00% | +100,000+13.2% | Added |
| Stonepine Capital Management, LLC | 917,100 | $2.85M | 2.17% | +867,100+1,734.2% | Added |
| Dimensional Fund Advisors LP | 967,195 | $3.01M | 0.00% | +226,547+30.6% | Added |
| Northern Trust Corp | 1,007,102 | $3.13M | 0.00% | +768,660+322.4% | Added |
| Vanguard Fiduciary Trust Co | 1,088,595 | $3.39M | 0.00% | +518,404+90.9% | Added |
| Superstring Capital Management LP | 1,278,652 | $3.48M | 2.20% | +212,413+19.9% | Added |
| Sphera Funds Management Ltd. | 1,329,012 | $4.13M | 0.59% | +1,329,012 | New |
| Morgan Stanley | 1,345,526 | $4.18M | 0.00% | −62,626−4.4% | Reduced |
| Two Sigma Investments, LP | 1,410,931 | $4.39M | 0.00% | −1,086,986−43.5% | Reduced |
| Vanguard Portfolio Management LLC | 1,418,108 | $4.41M | 0.00% | +1,418,108 | New |
| Qube Research & Technologies Ltd | 1,426,840 | $4.44M | 0.00% | −508,150−26.3% | Reduced |
| UBS Group AG | 1,471,895 | $4.58M | 0.00% | +865,231+142.6% | Added |
| Renaissance Technologies LLC | 1,535,300 | $4.77M | 0.01% | −501,363−24.6% | Reduced |
| Marshall Wace, LLP | 1,565,939 | $4.87M | 0.00% | −613,879−28.2% | Reduced |
| Millennium Management LLC | 2,068,491 | $6.43M | 0.00% | −3,834,790−65.0% | Reduced |
| Goldman Sachs Group Inc | 2,211,825 | $6.88M | 0.00% | +1,428,605+182.4% | Added |
| Franklin Resources Inc | 2,413,937 | $7.51M | 0.00% | +2,413,937 | New |
| Geode Capital Management, LLC | 3,459,464 | $10.8M | 0.00% | +2,326,219+205.3% | Added |
| Citadel Advisors LLC | 3,522,112 | $11.0M | 0.01% | +3,522,112 | New |
| Opaleye Management Inc. | 3,863,800 | $12.0M | 1.09% | +2,483,800+180.0% | Added |
| Norges Bank | 4,112,401 | $12.8M | 0.00% | +4,112,401 | New |
| Woodline Partners LP | 4,200,142 | $13.1M | 0.04% | +2,949,900+235.9% | Added |
| Price T Rowe Associates Inc | 4,418,674 | $13.7M | 0.00% | +3,976,397+899.1% | Added |
| Cormorant Asset Management, LP | 5,000,000 | $15.6M | 0.80% | −500,000−9.1% | Reduced |
| Vanguard Capital Management LLC | 7,227,018 | $22.5M | 0.00% | +3,198,027+79.4% | Added |
| State Street Corp | 7,839,305 | $24.4M | 0.00% | +7,369,327+1,568.0% | Added |
| Adage Capital Partners GP, L.L.C. | 9,174,758 | $28.5M | 0.04% | +345,000+3.9% | Added |
| BlackRock, Inc. | 10,754,701 | $33.4M | 0.00% | +8,381,698+353.2% | Added |
| Bain Capital Life Sciences Investors, LLC | 17,241,445 | $53.6M | 3.19% | +7,564,320+78.2% | Added |
| T. Rowe Price Investment Management, Inc. | 18,869,907 | $58.7M | 0.04% | +7,789,902+70.3% | Added |
| Jennison Associates LLC | 20,033,730 | $62.3M | 0.04% | +11,063,152+123.3% | Added |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −248,594−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −246,615−100.0% | Sold out |
| 683 Capital Management, LLC | 0 | $0 | 0.00% | −225,000−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −161,726−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −149,721−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −144,681−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −105,985−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −95,512−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −87,060−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −54,100−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −33,442−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −33,104−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −28,938−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −28,172−100.0% | Sold out |
| Mercer Global Advisors Inc | 0 | $0 | 0.00% | −26,510−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −21,300−100.0% | Sold out |
| Private Advisor Group, LLC | 0 | $0 | 0.00% | −18,025−100.0% | Sold out |
| SummitTX Capital, L.P. | 0 | $0 | 0.00% | −12,522−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −11,154−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −10,777−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −6,495−100.0% | Sold out |
| Antipodes Partners Ltd | 0 | $0 | 0.00% | −5,616−100.0% | Sold out |
| Fortitude Family Office, LLC | 0 | $0 | 0.00% | −163−100.0% | Sold out |