CABALETTA BIO INC (CABA) Institutional Shareholders
CABALETTA BIO INC (CABA) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $409.41M in CABA holdings during the latest filing period.
Jennison Associates Llc is currently the largest disclosed institutional shareholder of CABA tracked by InsiderSet, reporting ownership valued at approximately $62.30M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $55.09M, representing an estimated loss of -11.58% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 68% of the total disclosed CABA value among the investors covered in this analysis. Major shareholders include Jennison Associates Llc, Bain Capital Life Sciences Investors, Llc, Blackrock, Inc., and several other long-term asset managers with concentrated positions in CABALETTA BIO INC (CABA).
This page ranks the largest institutional CABA shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
139
Total Reported Value
$409.41M
Largest Holder
Jennison Associates Llc
Largest Position
$62.30M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
165
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Jennison Associates Llc | 0.04% | 20,033,730 | $62,304,900 | $55,092,758 | -$7,212,143 | -11.58% | |
| Bain Capital Life Sciences Investors, Llc | 3.19% | 17,241,445 | $53,620,894 | $47,413,974 | -$6,206,920 | -11.58% | |
| Blackrock, Inc. | 0.00% | 10,754,701 | $33,447,121 | $29,575,428 | -$3,871,693 | -11.58% | |
| Adage Capital Partners Gp, L.L.C. | 0.04% | 9,174,758 | $28,533,497 | $25,230,585 | -$3,302,913 | -11.58% | |
| State Street Corp | 0.00% | 7,839,305 | $24,380,239 | $21,558,089 | -$2,822,150 | -11.58% | |
| Vanguard Capital Management Llc | 0.00% | 7,227,018 | $22,476,026 | $19,874,300 | -$2,601,727 | -11.58% | |
| Cormorant Asset Management, Lp | 0.80% | 5,000,000 | $15,550,000 | $13,750,000 | -$1,800,000 | -11.58% | |
| Woodline Partners Lp | 0.04% | 4,200,142 | $13,062,442 | $11,550,391 | -$1,512,052 | -11.58% | |
| Norges Bank | 0.00% | 4,112,401 | $12,789,567 | $11,309,103 | -$1,480,464 | -11.58% | |
| Opaleye Management Inc. | 1.09% | 3,863,800 | $12,016,418 | $10,625,450 | -$1,390,968 | -11.58% | |
| Citadel Advisors Llc | 0.01% | 3,522,112 | $10,953,768 | $9,685,808 | -$1,267,960 | -11.58% | |
| Geode Capital Management, Llc | 0.00% | 3,459,464 | $10,761,875 | $9,513,526 | -$1,248,349 | -11.60% | |
| Goldman Sachs Group Inc | 0.00% | 2,211,825 | $6,878,776 | $6,082,519 | -$796,257 | -11.58% | |
| Millennium Management Llc | 0.00% | 2,068,491 | $6,433,007 | $5,688,350 | -$744,657 | -11.58% | |
| Marshall Wace, Llp | 0.00% | 1,565,939 | $4,870,070 | $4,306,332 | -$563,738 | -11.58% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 1,535,300 | $4,774,783 | $4,222,075 | -$552,708 | -11.58% |
| Ubs Group Ag | 0.00% | 1,471,895 | $4,577,594 | $4,047,711 | -$529,883 | -11.58% | |
| Qube Research & Technologies Ltd | 0.00% | 1,426,840 | $4,437,472 | $3,923,810 | -$513,662 | -11.58% | |
| Vanguard Portfolio Management Llc | 0.00% | 1,418,108 | $4,410,316 | $3,899,797 | -$510,519 | -11.58% | |
| Two Sigma Investments, Lp | 0.00% | 1,410,931 | $4,387,995 | $3,880,060 | -$507,935 | -11.58% | |
| Morgan Stanley | 0.00% | 1,345,526 | $4,184,586 | $3,700,197 | -$484,390 | -11.58% | |
| Sphera Funds Management Ltd. | 0.59% | 1,329,012 | $4,133,227 | $3,654,783 | -$478,444 | -11.58% | |
| Superstring Capital Management Lp | 2.20% | 1,278,652 | $3,478,020 | $3,516,293 | +$38,273 | +1.10% | |
| Vanguard Fiduciary Trust Co | 0.00% | 1,088,595 | $3,385,530 | $2,993,636 | -$391,894 | -11.58% | |
| Northern Trust Corp | 0.00% | 1,007,102 | $3,132,087 | $2,769,531 | -$362,557 | -11.58% | |
| Dimensional Fund Advisors Lp | 0.00% | 967,195 | $3,007,976 | $2,659,786 | -$348,190 | -11.58% | |
| Stonepine Capital Management, Llc | 1.70% | 917,100 | $2,852,181 | $2,522,025 | -$330,156 | -11.58% | |
| Schroder Investment Management Group | 0.00% | 856,637 | $2,664,141 | $2,355,752 | -$308,389 | -11.58% | |
| Ameriprise Financial Inc | 0.00% | 828,145 | $2,575,531 | $2,277,399 | -$298,132 | -11.58% | |
| Cantor Fitzgerald, L. P. | 0.05% | 800,001 | $2,488,003 | $2,200,003 | -$288,000 | -11.58% | |
| Heights Capital Management, Inc | 0.54% | 755,626 | $2,349,997 | $2,077,972 | -$272,026 | -11.58% | |
| Blue Owl Capital Holdings Lp | 0.34% | 714,710 | $2,222,748 | $1,965,453 | -$257,296 | -11.58% | |
| Burkehill Global Management, Lp | 0.08% | 700,000 | $2,177,000 | $1,925,000 | -$252,000 | -11.58% | |
| Ikarian Capital, Llc | 0.36% | 700,000 | $2,177,000 | $1,925,000 | -$252,000 | -11.58% | |
| Nuveen, Llc | 0.00% | 646,345 | $2,010,133 | $1,777,449 | -$232,684 | -11.58% | |
| Kvp Capital Advisors, Lp | 1.15% | 505,431 | $1,571,890 | $1,389,935 | -$181,955 | -11.58% | |
| Bank Of America Corp | 0.00% | 493,314 | $1,534,207 | $1,356,614 | -$177,594 | -11.58% | |
| Jump Financial, Llc | 0.01% | 488,775 | $1,520,090 | $1,344,131 | -$175,959 | -11.58% | |
| Raiffeisen Bank International Ag | 0.02% | 430,000 | $1,337,300 | $1,182,500 | -$154,800 | -11.58% | |
| Td Asset Management Inc | 0.00% | 391,472 | $1,217,478 | $1,076,548 | -$140,930 | -11.58% | |
| Susquehanna Portfolio Strategies, Llc | 0.02% | 383,294 | $1,192,044 | $1,054,059 | -$137,986 | -11.58% | |
| Charles Schwab Investment Management Inc | 0.00% | 374,886 | $1,165,895 | $1,030,937 | -$134,959 | -11.58% | |
| Sixth Street Partners Management Company, L.P. | 0.00% | 374,886 | $1,165,895 | $1,030,937 | -$134,959 | -11.58% | |
| Bank Of New York Mellon Corp | 0.00% | 304,819 | $947,988 | $838,252 | -$109,736 | -11.58% | |
| Wellington Management Group Llp | 0.00% | 286,212 | $890,119 | $787,083 | -$103,036 | -11.58% | |
| Bridgeway Capital Management, Llc | 0.01% | 267,372 | $831,527 | $735,273 | -$96,254 | -11.58% | |
| Invesco Ltd. | 0.00% | 241,565 | $751,267 | $664,304 | -$86,963 | -11.58% | |
| Wells Fargo & Company/Mn | 0.00% | 196,872 | $612,274 | $541,398 | -$70,876 | -11.58% | |
| Citigroup Inc | 0.00% | 184,232 | $572,962 | $506,638 | -$66,324 | -11.58% | |
| Boothbay Fund Management, Llc | 0.01% | 182,455 | $567,435 | $501,751 | -$65,684 | -11.58% |
Frequently asked questions about CABA
Who owns the most CABA stock?
The largest holders of CABA are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for CABALETTA BIO INC (CABA).
Is CABA widely held by superinvestors?
Many widely followed stocks like CABA appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly CABA is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.