Cabaletta Bio, Inc. (CABA) — Institutional Holders, Q2 2026
141 institutional investment managers reported a CABA position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $490.4M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
CABA in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- JENNISON ASSOCIATESAdded · +11,063,152 sh+$34.4M
- BlackRockAdded · +8,381,698 sh+$26.1M
- T. Rowe Price Investment ManagementAdded · +7,789,902 sh+$24.2M
- Bain Capital Life Sciences InvestorsAdded · +7,564,320 sh+$23.5M
- STATE STREETAdded · +7,369,327 sh+$22.9M
Biggest sellers
- MILLENNIUM MANAGEMENTTrimmed · -3,834,790 sh-$11.9M
- TWO SIGMA INVESTMENTSTrimmed · -1,086,986 sh-$3.4M
- MARSHALL WACE, LLPTrimmed · -613,879 sh-$1.9M
- Qube Research & Technologies LtdTrimmed · -508,150 sh-$1.6M
- RENAISSANCE TECHNOLOGIESTrimmed · -501,363 sh-$1.6M
CABA 13F holders ranked 1–100 of 141
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | JENNISON ASSOCIATES#1 · 20,033,730 sh | 20,033,730 | $62.3M | 0.04% | +123.3% |
| 2 | T. Rowe Price Investment Management#2 · 18,869,907 sh | 18,869,907 | $58.7M | 0.04% | +70.3% |
| 3 | Bain Capital Life Sciences Investors#3 · 17,241,445 sh | 17,241,445 | $53.6M | 3.19% | +78.2% |
| 4 | BlackRock#4 · 10,754,701 sh | 10,754,701 | $33.4M | <0.01% | +353.2% |
| 5 | ADAGE CAPITAL PARTNERS GP, L.L.C.#5 · 9,174,758 sh | 9,174,758 | $28.5M | 0.04% | +3.9% |
| 6 | STATE STREET#6 · 7,839,305 sh | 7,839,305 | $24.4M | <0.01% | +1568.0% |
| 7 | VANGUARD CAPITAL MANAGEMENT#7 · 7,227,018 sh | 7,227,018 | $22.5M | <0.01% | +79.4% |
| 8 | Cormorant Asset Management#8 · 5,000,000 sh | 5,000,000 | $15.6M | 0.80% | -9.1% |
| 9 | PRICE T ROWE ASSOCIATES#9 · 4,418,674 sh | 4,418,674 | $13.7M | <0.01% | +899.1% |
| 10 | Woodline Partners#10 · 4,200,142 sh | 4,200,142 | $13.1M | 0.04% | +235.9% |
| 11 | NORGES BANK#11 · 4,112,401 sh | 4,112,401 | $12.8M | <0.01% | — |
| 12 | Opaleye Management#12 · 3,863,800 sh | 3,863,800 | $12.0M | 1.09% | +180.0% |
| 13 | CITADEL ADVISORS#13 · 3,522,112 sh | 3,522,112 | $11.0M | <0.01% | New |
| 14 | GEODE CAPITAL MANAGEMENT#14 · 3,459,464 sh | 3,459,464 | $10.8M | <0.01% | +205.3% |
| 15 | FRANKLIN RESOURCES#15 · 2,413,937 sh | 2,413,937 | $7.5M | <0.01% | New |
| 16 | GOLDMAN SACHS GROUP#16 · 2,211,825 sh | 2,211,825 | $6.9M | <0.01% | +182.4% |
| 17 | MILLENNIUM MANAGEMENT#17 · 2,068,491 sh | 2,068,491 | $6.4M | <0.01% | -65.0% |
| 18 | MARSHALL WACE, LLP#18 · 1,565,939 sh | 1,565,939 | $4.9M | <0.01% | -28.2% |
| 19 | RENAISSANCE TECHNOLOGIES#19 · 1,535,300 sh | 1,535,300 | $4.8M | <0.01% | -24.6% |
| 20 | UBS Group AG#20 · 1,471,895 sh | 1,471,895 | $4.6M | <0.01% | +142.6% |
| 21 | Qube Research & Technologies Ltd#21 · 1,426,840 sh | 1,426,840 | $4.4M | <0.01% | -26.3% |
| 22 | VANGUARD PORTFOLIO MANAGEMENT#22 · 1,418,108 sh | 1,418,108 | $4.4M | <0.01% | New |
| 23 | TWO SIGMA INVESTMENTS#23 · 1,410,931 sh | 1,410,931 | $4.4M | <0.01% | -43.5% |
| 24 | MORGAN STANLEY#24 · 1,345,526 sh | 1,345,526 | $4.2M | <0.01% | -4.4% |
| 25 | SPHERA FUNDS MANAGEMENT LTD.#25 · 1,329,012 sh | 1,329,012 | $4.1M | 0.54% | New |
| 26 | SUPERSTRING CAPITAL MANAGEMENT#26 · 1,278,652 sh | 1,278,652 | $3.5M | 2.20% | +19.9% |
| 27 | VANGUARD FIDUCIARY#27 · 1,088,595 sh | 1,088,595 | $3.4M | <0.01% | +90.9% |
| 28 | NORTHERN#28 · 1,007,102 sh | 1,007,102 | $3.1M | <0.01% | +322.4% |
| 29 | DIMENSIONAL FUND ADVISORS#29 · 967,195 sh | 967,195 | $3.0M | <0.01% | +30.6% |
| 30 | Stonepine Capital Management#30 · 917,100 sh | 917,100 | $2.9M | 1.34% | +1734.2% |
| 31 | SCHRODER INVESTMENT MANAGEMENT GROUP#31 · 856,637 sh | 856,637 | $2.7M | <0.01% | +13.2% |
| 32 | AMERIPRISE FINANCIAL#32 · 828,145 sh | 828,145 | $2.6M | <0.01% | New |
| 33 | CANTOR FITZGERALD, L. P.#33 · 800,001 sh | 800,001 | $2.5M | 0.03% | +4.6% |
| 34 | HEIGHTS CAPITAL MANAGEMENT#34 · 755,626 sh | 755,626 | $2.3M | 0.54% | New |
| 35 | Blue Owl Capital#35 · 714,710 sh | 714,710 | $2.2M | 0.33% | New |
| 36 | Ikarian Capital#36 · 700,000 sh | 700,000 | $2.2M | 0.23% | -22.2% |
| 37 | Burkehill Global Management#37 · 700,000 sh | 700,000 | $2.2M | 0.08% | 0.0% |
| 38 | GSA CAPITAL PARTNERS LLP#38 · 668,563 sh | 668,563 | $2.1M | 0.13% | +19.0% |
| 39 | Nuveen#39 · 646,345 sh | 646,345 | $2.0M | <0.01% | New |
| 40 | KVP Capital Advisors#40 · 505,431 sh | 505,431 | $1.6M | 1.15% | 0.0% |
| 41 | BANK OF AMERICA#41 · 493,314 sh | 493,314 | $1.5M | <0.01% | +83.2% |
| 42 | Jump Financial#42 · 488,775 sh | 488,775 | $1.5M | 0.01% | +2826.8% |
| 43 | Raiffeisen Bank International AG#43 · 430,000 sh | 430,000 | $1.3M | 0.02% | -4.4% |
| 44 | TD ASSET MANAGEMENT#44 · 391,472 sh | 391,472 | $1.2M | <0.01% | +485.0% |
| 45 | Susquehanna Portfolio Strategies#45 · 383,294 sh | 383,294 | $1.2M | 0.02% | +2078.4% |
| 46 | CHARLES SCHWAB INVESTMENT MANAGEMENT#46 · 374,886 sh | 374,886 | $1.2M | <0.01% | +637.6% |
| 47 | Bank of New York Mellon#47 · 304,819 sh | 304,819 | $948.0K | <0.01% | +461.4% |
| 48 | WELLINGTON MANAGEMENT GROUP LLP#48 · 286,212 sh | 286,212 | $890.1K | <0.01% | +15.6% |
| 49 | BRIDGEWAY CAPITAL MANAGEMENT#49 · 267,372 sh | 267,372 | $831.5K | 0.01% | 0.0% |
| 50 | Invesco Ltd.#50 · 241,565 sh | 241,565 | $751.3K | <0.01% | +25.6% |
| 51 | WELLS FARGO & COMPANY#51 · 196,872 sh | 196,872 | $612.3K | <0.01% | +3181.2% |
| 52 | CITIGROUP#52 · 184,232 sh | 184,232 | $573.0K | <0.01% | +570.6% |
| 53 | BOOTHBAY FUND MANAGEMENT#53 · 182,455 sh | 182,455 | $567.4K | <0.01% | -25.1% |
| 54 | MANUFACTURERS LIFE INSURANCE COMPANY, THE#54 · 182,055 sh | 182,055 | $566.2K | <0.01% | New |
| 55 | PANAGORA ASSET MANAGEMENT#55 · 161,916 sh | 161,916 | $503.6K | <0.01% | New |
| 56 | SUSQUEHANNA FUNDAMENTAL INVESTMENTS#56 · 152,964 sh | 152,964 | $475.7K | <0.01% | New |
| 57 | Rafferty Asset Management#57 · 146,107 sh | 146,107 | $454.4K | <0.01% | New |
| 58 | Diametric Capital#58 · 135,598 sh | 135,598 | $421.7K | 0.04% | -48.4% |
| 59 | RHUMBLINE ADVISERS#59 · 131,640 sh | 131,640 | $409.4K | <0.01% | New |
| 60 | Almitas Capital#60 · 125,900 sh | 125,900 | $391.5K | 0.09% | -62.7% |
| 61 | DEUTSCHE BANK AG\#61 · 110,962 sh | 110,962 | $345.1K | <0.01% | New |
| 62 | Virtus Investment Advisers#62 · 108,703 sh | 108,703 | $338.1K | 0.08% | New |
| 63 | ALLIANCEBERNSTEIN L.P.#63 · 108,410 sh | 108,410 | $291.6K | <0.01% | New |
| 64 | D. E. Shaw#64 · 90,652 sh | 90,652 | $281.9K | <0.01% | -52.1% |
| 65 | LETKO, BROSSEAU & ASSOCIATES#65 · 90,475 sh | 90,475 | $281.4K | <0.01% | 0.0% |
| 66 | Graham Capital Management, L.P.#66 · 81,279 sh | 81,279 | $252.8K | <0.01% | -20.1% |
| 67 | LPL Financial#67 · 79,075 sh | 79,075 | $245.9K | <0.01% | +13.7% |
| 68 | PROFUND ADVISORS#68 · 73,409 sh | 73,409 | $228.3K | <0.01% | New |
| 69 | Virtu Financial#69 · 69,511 sh | 69,511 | $216.0K | <0.01% | +79.6% |
| 70 | MIRAE ASSET GLOBAL ETFS Ltd.#70 · 68,592 sh | 68,592 | $213.3K | <0.01% | New |
| 71 | MetLife Investment Management#71 · 66,749 sh | 66,749 | $207.6K | <0.01% | New |
| 72 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#72 · 63,228 sh | 63,228 | $196.6K | 0.00% | New |
| 73 | RAYMOND JAMES FINANCIAL#73 · 60,289 sh | 60,289 | $187.5K | <0.01% | +205.0% |
| 74 | JPMORGAN CHASE#74 · 59,368 sh | 59,368 | $184.6K | 0.00% | +723.9% |
| 75 | Vanguard Global Advisers#75 · 57,372 sh | 57,372 | $178.4K | <0.01% | +60.5% |
| 76 | MATAURO#76 · 55,108 sh | 55,108 | $171.4K | 0.02% | 0.0% |
| 77 | Universal- Beteiligungs- und Servicegesellschaft mbH#77 · 54,086 sh | 54,086 | $168.2K | <0.01% | New |
| 78 | EntryPoint Capital#78 · 50,927 sh | 50,927 | $158.4K | 0.04% | New |
| 79 | ADAR1 Capital Management#79 · 50,000 sh | 50,000 | $155.5K | <0.01% | New |
| 80 | XTX Topco Ltd#80 · 45,702 sh | 45,702 | $142.1K | <0.01% | +265.3% |
| 81 | BARCLAYS PLC#81 · 44,701 sh | 44,701 | $139.0K | 0.00% | -54.3% |
| 82 | KEYBANK NATIONAL ASSOCIATION#82 · 39,005 sh | 39,005 | $121.3K | <0.01% | New |
| 83 | Quantbot Technologies#83 · 37,208 sh | 37,208 | $115.7K | <0.01% | New |
| 84 | LOS ANGELES CAPITAL MANAGEMENT#84 · 34,419 sh | 34,419 | $107.0K | <0.01% | New |
| 85 | Police & Firemen's Retirement System of New Jersey#85 · 33,203 sh | 33,203 | $103.3K | <0.01% | New |
| 86 | Grey Ledge Advisors#86 · 30,000 sh | 30,000 | $93.3K | 0.02% | +50.0% |
| 87 | WINTON GROUP Ltd#87 · 27,000 sh | 27,000 | $84.0K | <0.01% | +76.5% |
| 88 | TWO SIGMA SECURITIES#88 · 26,663 sh | 26,663 | $82.9K | <0.01% | New |
| 89 | China Universal Asset Management , Ltd.#89 · 25,950 sh | 25,950 | $80.7K | <0.01% | +51.9% |
| 90 | RITHOLTZ WEALTH MANAGEMENT#90 · 25,000 sh | 25,000 | $77.8K | <0.01% | New |
| 91 | Wealthfront Advisers#91 · 24,389 sh | 24,389 | $75.8K | <0.01% | New |
| 92 | NEW YORK STATE COMMON RETIREMENT FUND#92 · 23,400 sh | 23,400 | $72.8K | <0.01% | New |
| 93 | INTECH INVESTMENT MANAGEMENT#93 · 23,035 sh | 23,035 | $71.6K | <0.01% | New |
| 94 | VOYA INVESTMENT MANAGEMENT#94 · 21,377 sh | 21,377 | $66.5K | <0.01% | New |
| 95 | E Fund Management , Ltd.#95 · 20,601 sh | 20,601 | $64.1K | <0.01% | New |
| 96 | nVerses Capital#96 · 20,286 sh | 20,286 | $63.1K | 0.10% | New |
| 97 | ProShare Advisors#97 · 20,086 sh | 20,086 | $62.5K | <0.01% | New |
| 98 | BNP PARIBAS FINANCIAL MARKETS#98 · 19,609 sh | 19,609 | $61.0K | 0.00% | +1149.8% |
| 99 | Clear Harbor Asset Management#99 · 19,500 sh | 19,500 | $60.6K | <0.01% | 0.0% |
| 100 | Callan Family Office#100 · 17,434 sh | 17,434 | $54.2K | <0.01% | 0.0% |
Funds that sold out of CABA in Q2 2026 (23)
Held CABA at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| JANE STREET GROUP248,594 sh | 248,594 | $668.7K |
| Point72 Asset Management, L.P.246,615 sh | 246,615 | $663.4K |
| 683 Capital Management225,000 sh | 225,000 | $605.3K |
| Hudson Bay Capital Management161,726 sh | 161,726 | $435.0K |
| Brevan Howard Capital Management149,721 sh | 149,721 | $402.7K |
| Squarepoint Ops144,681 sh | 144,681 | $389.2K |
| ExodusPoint Capital Management105,985 sh | 105,985 | $285.1K |
| NOMURA95,512 sh | 95,512 | $256.9K |
| Quadrature Capital Ltd87,060 sh | 87,060 | $234.2K |
| OMERS ADMINISTRATION54,100 sh | 54,100 | $145.5K |
| LEUCADIA NATIONAL33,442 sh | 33,442 | $90.0K |
| HRT FINANCIAL33,104 sh | 33,104 | $89.0K |
| AXQ CAPITAL28,938 sh | 28,938 | $77.8K |
| Schonfeld Strategic Advisors28,172 sh | 28,172 | $75.8K |
| MERCER GLOBAL ADVISORS26,510 sh | 26,510 | $71.3K |
| QUADRANT CAPITAL GROUP12,990 sh | 12,990 | $66.4K |
| Catalyst Funds Management Pty Ltd21,300 sh | 21,300 | $57.3K |
| Private Advisor Group18,025 sh | 18,025 | $48.5K |
| SummitTX Capital, L.P.12,522 sh | 12,522 | $33.7K |
| BALYASNY ASSET MANAGEMENT L.P.11,154 sh | 11,154 | $30.0K |
| Dynamic Technology Lab Private Ltd10,777 sh | 10,777 | $29.0K |
| ANTIPODES PARTNERS Ltd5,616 sh | 5,616 | $15.1K |
| Fortitude Family Office163 sh | 163 | $438.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.