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, Q1 2026
Institutional positions in Cabaletta Bio, Inc. as of Mar 31, 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
- 108
- +14 vs. Q4 2025
- Shares held
- 84.7M
- +12.8M (+17.9%) vs. Q4 2025
- Total value
- $227.5M
- +$70.3M (+44.7%) vs. Q4 2025
- New holders
- 27
- 32 more added
- Sold out
- 13
- 27 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: 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, Q1 2026
Shares, value and share of portfolio for each institution holding Cabaletta Bio, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| SRS Capital Advisors, Inc. | 2 | $27 | 0.00% | −8−80.0% | Reduced |
| Northwestern Mutual Wealth Management Co | 60 | $161 | 0.00% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 163 | $438 | 0.00% | +163 | New |
| SBI Securities Co., Ltd. | 316 | $850 | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 340 | $915 | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 653 | $1.75K | 0.00% | −20,007−96.8% | Reduced |
| Royal Bank of Canada | 781 | $2.00K | 0.00% | +658+535.0% | Added |
| Nisa Investment Advisors, LLC | 811 | $2.18K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 939 | $2.53K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 1,322 | $3.56K | 0.00% | +1,322 | New |
| BNP Paribas Arbitrage, SA | 1,569 | $4.22K | 0.00% | −71−4.3% | Reduced |
| Rockefeller Capital Management L.P. | 2,000 | $5.38K | 0.00% | +2,000 | New |
| GF Fund Management Co. Ltd. | 2,149 | $5.78K | 0.00% | +258+13.6% | Added |
| Advisor Group Holdings, Inc. | 2,907 | $7.82K | 0.00% | +2,907 | New |
| The PNC Financial Services Group, Inc. | 4,600 | $12.4K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 5,021 | $13.5K | 0.00% | +343+7.3% | Added |
| Antipodes Partners Ltd | 5,616 | $15.1K | 0.00% | −11,571−67.3% | Reduced |
| Tower Research Capital LLC (TRC) | 5,784 | $15.6K | 0.00% | −24,561−80.9% | Reduced |
| Wells Fargo & Company | 6,000 | $16.1K | 0.00% | +4,000+200.0% | Added |
| Quadrant Capital Group LLC | 6,495 | $17.5K | 0.00% | +6,495 | New |
| JPMorgan Chase & Co | 7,206 | $17.8K | 0.00% | −2,599−26.5% | Reduced |
| Dynamic Technology Lab Private Ltd | 10,777 | $29.0K | 0.00% | −56,012−83.9% | Reduced |
| Balyasny Asset Management LLC | 11,154 | $30.0K | 0.00% | −40,398−78.4% | Reduced |
| Kestra Advisory Services, LLC | 11,750 | $31.6K | 0.00% | +11,750 | New |
| XTX Topco Ltd | 12,512 | $33.7K | 0.00% | −142,875−91.9% | Reduced |
| SummitTX Capital, L.P. | 12,522 | $33.7K | 0.00% | +12,522 | New |
| FMR LLC | 12,991 | $34.9K | 0.00% | −54−0.4% | Reduced |
| CRA Financial Services, LLC | 15,000 | $40.4K | 0.01% | 00.0% | Unchanged |
| Winton Group Ltd | 15,300 | $41.2K | 0.00% | +15,300 | New |
| Jump Financial, LLC | 16,700 | $44.9K | 0.00% | +16,700 | New |
| China Universal Asset Management Co., Ltd. | 17,083 | $46.0K | 0.00% | +1,397+8.9% | Added |
| Callan Family Office, LLC | 17,434 | $46.9K | 0.00% | −5,141−22.8% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 17,595 | $47.3K | 0.00% | +17,595 | New |
| Private Advisor Group, LLC | 18,025 | $48.5K | 0.00% | +3,300+22.4% | Added |
| JustInvest LLC | 19,390 | $52.2K | 0.00% | −2,994−13.4% | Reduced |
| Clear Harbor Asset Management, LLC | 19,500 | $52.5K | 0.00% | 00.0% | Unchanged |
| Raymond James Financial Inc | 19,769 | $53.2K | 0.00% | +19,769 | New |
| GSB Wealth Management, LLC | 20,000 | $53.8K | 0.01% | +20,000 | New |
| Catalyst Funds Management Pty Ltd | 21,300 | $57.3K | 0.01% | +21,300 | New |
| Fred Alger Management, LLC | 23,157 | $62.3K | 0.00% | −4,864−17.4% | Reduced |
| Mercer Global Advisors Inc | 26,510 | $71.3K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 27,473 | $73.9K | 0.00% | −46,301−62.8% | Reduced |
| Schonfeld Strategic Advisors LLC | 28,172 | $75.8K | 0.00% | −1,175,898−97.7% | Reduced |
| Axq Capital, LP | 28,938 | $77.8K | 0.01% | +28,938 | New |
| HRT Financial LP | 33,104 | $89.0K | 0.00% | +33,104 | New |
| Jefferies Financial Group Inc. | 33,442 | $90.0K | 0.00% | −11,683−25.9% | Reduced |
| Vanguard Global Advisers, LLC | 35,751 | $96.2K | 0.00% | +35,751 | New |
| Virtu Financial LLC | 38,703 | $104.0K | 0.00% | +38,703 | New |
| Prelude Capital Management, LLC | 43,416 | $116.8K | 0.01% | +43,416 | New |
| Stonepine Capital Management, LLC | 50,000 | $134.5K | 0.12% | −121,100−70.8% | Reduced |
| Charles Schwab Investment Management Inc | 50,824 | $136.7K | 0.00% | 00.0% | Unchanged |
| Omers Administration Corp | 54,100 | $145.5K | 0.00% | −41,300−43.3% | Reduced |
| Bank of New York Mellon Corp | 54,299 | $146.1K | 0.00% | +252+0.5% | Added |
| Matauro, LLC | 55,108 | $148.2K | 0.02% | 00.0% | Unchanged |
| TD Asset Management Inc | 66,924 | $180.0K | 0.00% | −21,676−24.5% | Reduced |
| LPL Financial LLC | 69,575 | $187.2K | 0.00% | +26,960+63.3% | Added |
| Quadrature Capital Ltd | 87,060 | $234.2K | 0.00% | +20,683+31.2% | Added |
| Letko, Brosseau & Associates Inc | 90,475 | $243.4K | 0.00% | 00.0% | Unchanged |
| Nomura Holdings Inc | 95,512 | $256.9K | 0.00% | +95,512 | New |
| Barclays PLC | 97,792 | $263.1K | 0.00% | −122,904−55.7% | Reduced |
| Graham Capital Management, L.P. | 101,688 | $273.5K | 0.01% | −49,763−32.9% | Reduced |
| ExodusPoint Capital Management, LP | 105,985 | $285.1K | 0.00% | +105,985 | New |
| American Century Companies Inc | 108,319 | $291.4K | 0.00% | +49,542+84.3% | Added |
| Squarepoint Ops LLC | 144,681 | $389.2K | 0.00% | −4,413−3.0% | Reduced |
| Brevan Howard Capital Management LP | 149,721 | $402.7K | 0.00% | +149,721 | New |
| Hudson Bay Capital Management LP | 161,726 | $435.0K | 0.00% | +22,997+16.6% | Added |
| D. E. Shaw & Co., Inc. | 189,412 | $509.5K | 0.00% | +189,412 | New |
| Invesco Ltd. | 192,383 | $517.5K | 0.00% | +3,188+1.7% | Added |
| 683 Capital Management, LLC | 225,000 | $605.3K | 0.06% | −163,562−42.1% | Reduced |
| Northern Trust Corp | 238,442 | $641.4K | 0.00% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 243,445 | $654.9K | 0.02% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 246,615 | $663.4K | 0.00% | +189,967+335.3% | Added |
| Wellington Management Group LLP | 247,659 | $666.2K | 0.00% | +247,659 | New |
| Jane Street Group, LLC | 248,594 | $668.7K | 0.00% | −413,555−62.5% | Reduced |
| Diametric Capital, LP | 262,831 | $707.0K | 0.19% | +262,831 | New |
| Bridgeway Capital Management, LLC | 267,372 | $719.2K | 0.01% | +136,697+104.6% | Added |
| Bank of America Corp | 269,257 | $724.3K | 0.00% | +254,865+1,770.9% | Added |
| Almitas Capital LLC | 337,391 | $907.6K | 0.21% | −50,100−12.9% | Reduced |
| Raiffeisen Bank International AG | 450,000 | $1.11M | 0.02% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 442,277 | $1.19M | 0.00% | −651,682−59.6% | Reduced |
| State Street Corp | 469,978 | $1.26M | 0.00% | +44,500+10.5% | Added |
| KVP Capital Advisors, LP | 505,431 | $1.36M | 1.02% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 561,726 | $1.51M | 0.09% | +257,734+84.8% | Added |
| Vanguard Fiduciary Trust Co | 570,191 | $1.53M | 0.00% | +570,191 | New |
| UBS Group AG | 606,664 | $1.63M | 0.00% | +190,987+45.9% | Added |
| Schroder Investment Management Group | 756,637 | $1.87M | 0.00% | 00.0% | Unchanged |
| Burkehill Global Management, LP | 700,000 | $1.88M | 0.09% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 740,648 | $1.99M | 0.00% | +288,609+63.8% | Added |
| Cantor Fitzgerald, L. P. | 765,000 | $2.06M | 0.07% | +765,000 | New |
| Goldman Sachs Group Inc | 783,220 | $2.11M | 0.00% | +352,546+81.9% | Added |
| Ikarian Capital, LLC | 900,000 | $2.42M | 0.35% | 00.0% | Unchanged |
| Superstring Capital Management LP | 1,066,239 | $2.87M | 2.05% | −1,187,311−52.7% | Reduced |
| Geode Capital Management, LLC | 1,133,245 | $3.05M | 0.00% | +47,429+4.4% | Added |
| Woodline Partners LP | 1,250,242 | $3.36M | 0.01% | 00.0% | Unchanged |
| Opaleye Management Inc. | 1,380,000 | $3.71M | 0.49% | +480,000+53.3% | Added |
| Morgan Stanley | 1,408,152 | $3.79M | 0.00% | +64,444+4.8% | Added |
| Qube Research & Technologies Ltd | 1,934,990 | $5.21M | 0.01% | +1,603,765+484.2% | Added |
| Renaissance Technologies LLC | 2,036,663 | $5.48M | 0.01% | +514,080+33.8% | Added |
| Marshall Wace, LLP | 2,179,818 | $5.86M | 0.01% | +1,220,742+127.3% | Added |
| BlackRock, Inc. | 2,373,003 | $6.38M | 0.00% | +44,533+1.9% | Added |