CABA — CABALETTA BIO INC
Reported value held$154.77M
Funds holding (latest)37
SectorHealth Care
Funds holding (Q2 2026)29
Institutional value$124.61M · 44.48M sh
New / Add / Cut / Exit7 / 15 / 6 / 2
Top-5 / Top-10 concentration62.1% / 84.2%
Institutional holdings change
Accumulating +104.8%
(+22.76M sh)
Institutional value change
Up +117.7%
As of Q2 2026, 29 SEC-registered investment managers reported holding CABA (CABALETTA BIO INC) in their latest 13F filings, with a combined reported value of $124.61M across 44.48M shares. That is +104.8% by share count (+22.76M shares) versus the previous quarter, while reported value moved +117.7%. Ownership is concentrated: the five largest holders account for 62.1% of reported value and the top ten for 84.2%.
Compared with the prior quarter, 7 opened new positions, 15 added to existing stakes, 6 trimmed, 2 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
CABA is classified in the Health Care sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
Q2 2026 — 29 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| BlackRock Inc history | 10.75M | $33.45M | 0.00% | Add |
| Citadel Advisors history | 4.13M | $12.85M | 0.00% | Add |
| Norges Bank Investment Management history | 4.11M | $12.79M | 0.00% | New |
| Geode Capital Management history | 3.46M | $10.76M | 0.00% | Add |
| Franklin Resources history | 2.41M | $7.51M | 0.00% | New |
| Goldman Sachs Group history | 2.21M | $6.88M | 0.00% | Add |
| Millennium Management history | 2.07M | $6.43M | 0.00% | Reduce |
| Marshall Wace history | 1.57M | $4.87M | 0.00% | Reduce |
| Renaissance Technologies history | 1.54M | $4.77M | 0.01% | Reduce |
| UBS Group AG history | 1.47M | $4.58M | 0.00% | Add |
| Two Sigma Investments history | 1.41M | $4.39M | 0.00% | Reduce |
| Morgan Stanley history | 1.35M | $4.18M | 0.00% | Reduce |
| Northern Trust Corp history | 1.01M | $3.13M | 0.00% | Add |
| Bank of America Corp history | 493.31K | $1.53M | 0.00% | Add |
| Charles Schwab Investment Management history | 374.89K | $1.17M | 0.00% | Add |
| BNY Mellon history | 304.82K | $947.99K | 0.00% | Add |
| Wellington Management Group history | 286.21K | $890.12K | 0.00% | Add |
| Invesco Ltd history | 241.56K | $751.27K | 0.00% | Add |
| Wells Fargo & Co history | 196.87K | $612.27K | 0.00% | Add |
| Citigroup Inc history | 184.23K | $572.96K | 0.00% | Add |
| Manulife Financial history | 182.06K | $566.19K | 0.00% | New |
| Deutsche Bank AG history | 110.96K | $345.09K | 0.00% | New |
| D. E. Shaw & Co history | 90.65K | $281.93K | 0.00% | Reduce |
| JPMorgan Chase & Co history | 59.37K | $184.63K | 0.00% | New |
| Prudential Financial history | 16.98K | $52.82K | 0.00% | New |
| Fidelity Management & Research (FMR) history | 15.93K | $49.54K | 0.00% | Add |
| Legal & General Investment Management America history | 10.92K | $34.01K | 0.00% | New |
| PNC Financial Services history | 4.60K | $14.31K | 0.00% | Hold |
| T. Rowe Price Associates history | 4.42M | $13.74K | 0.00% | Add |
Q1 2026 — 24 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Millennium Management history | 5.90M | $15.88M | 0.01% | Add |
| Two Sigma Investments history | 2.50M | $6.72M | 0.01% | Add |
| BlackRock Inc history | 2.37M | $6.38M | 0.00% | Add |
| Marshall Wace history | 2.18M | $5.86M | 0.01% | Add |
| Renaissance Technologies history | 2.04M | $5.48M | 0.01% | Add |
| Morgan Stanley history | 1.41M | $3.79M | 0.00% | Add |
| Geode Capital Management history | 1.13M | $3.05M | 0.00% | Add |
| Goldman Sachs Group history | 1.03M | $2.77M | 0.00% | Add |
| UBS Group AG history | 606.66K | $1.63M | 0.00% | Add |
| Citadel Advisors history | 560.80K | $1.51M | 0.00% | Add |
| Bank of America Corp history | 269.26K | $724.30K | 0.00% | Add |
| Wellington Management Group history | 247.66K | $666.20K | 0.00% | New |
| Point72 Asset Management history | 246.62K | $663.39K | 0.00% | Add |
| Northern Trust Corp history | 238.44K | $641.41K | 0.00% | Hold |
| Invesco Ltd history | 192.38K | $517.51K | 0.00% | Add |
| D. E. Shaw & Co history | 189.41K | $509.52K | 0.00% | New |
| BNY Mellon history | 54.30K | $146.07K | 0.00% | Hold |
| Charles Schwab Investment Management history | 50.82K | $136.72K | 0.00% | Hold |
| Citigroup Inc history | 27.47K | $73.90K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 12.99K | $34.95K | 0.00% | Hold |
| Balyasny Asset Management history | 11.15K | $30.00K | 0.00% | Reduce |
| Wells Fargo & Co history | 6.00K | $16.14K | 0.00% | Add |
| PNC Financial Services history | 4.60K | $12.37K | 0.00% | Hold |
| T. Rowe Price Associates history | 442.28K | $1.19K | 0.00% | Reduce |
Q4 2025 — 26 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Vanguard Group history | 4.42M | $9.68M | 0.00% | Add |
| Millennium Management history | 2.74M | $5.99M | 0.00% | Add |
| BlackRock Inc history | 2.33M | $5.10M | 0.00% | Add |
| Two Sigma Investments history | 1.84M | $4.03M | 0.01% | Add |
| Renaissance Technologies history | 1.52M | $3.33M | 0.01% | Add |
| Morgan Stanley history | 1.34M | $2.94M | 0.00% | Reduce |
| Geode Capital Management history | 1.09M | $2.38M | 0.00% | Add |
| Marshall Wace history | 959.08K | $2.10M | 0.00% | Reduce |
| Goldman Sachs Group history | 677.17K | $1.48M | 0.00% | Add |
| UBS Group AG history | 415.68K | $910.33K | 0.00% | Add |
| Citadel Advisors history | 256.10K | $560.86K | 0.00% | Reduce |
| Northern Trust Corp history | 238.44K | $522.19K | 0.00% | Add |
| Invesco Ltd history | 189.19K | $414.34K | 0.00% | Add |
| Citigroup Inc history | 73.77K | $161.56K | 0.00% | Add |
| Point72 Asset Management history | 56.65K | $124.06K | 0.00% | New |
| BNY Mellon history | 54.05K | $118.36K | 0.00% | Add |
| Balyasny Asset Management history | 51.55K | $112.90K | 0.00% | New |
| Charles Schwab Investment Management history | 50.82K | $111.31K | 0.00% | Hold |
| Bank of America Corp history | 14.39K | $31.52K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 13.04K | $28.57K | 0.00% | Reduce |
| Manulife Financial history | 13.01K | $28.04K | 0.00% | Reduce |
| JPMorgan Chase & Co history | 9.80K | $21.47K | 0.00% | Reduce |
| PNC Financial Services history | 4.60K | $10.07K | 0.00% | Add |
| CPP Investments history | 3.50K | $7.67K | 0.00% | New |
| Wells Fargo & Co history | 2.00K | $4.38K | 0.00% | Reduce |
| T. Rowe Price Associates history | 1.09M | $2.40K | 0.00% | Reduce |
Q3 2025 — 23 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Vanguard Group history | 4.19M | $9.81M | 0.00% | Add |
| BlackRock Inc history | 1.62M | $3.79M | 0.00% | Add |
| Morgan Stanley history | 1.47M | $3.45M | 0.00% | Add |
| Renaissance Technologies history | 1.34M | $3.13M | 0.00% | Add |
| Marshall Wace history | 1.33M | $3.10M | 0.00% | Add |
| Citadel Advisors history | 950.26K | $2.22M | 0.00% | Reduce |
| Geode Capital Management history | 920.34K | $2.15M | 0.00% | Add |
| Millennium Management history | 686.81K | $1.61M | 0.00% | Reduce |
| JPMorgan Chase & Co history | 537.65K | $1.26M | 0.00% | Add |
| Two Sigma Investments history | 470.48K | $1.10M | 0.00% | Add |
| UBS Group AG history | 405.12K | $947.98K | 0.00% | Reduce |
| Goldman Sachs Group history | 272.60K | $637.87K | 0.00% | Reduce |
| Bank of America Corp history | 268.06K | $627.26K | 0.00% | Reduce |
| Northern Trust Corp history | 226.99K | $531.15K | 0.00% | Add |
| Invesco Ltd history | 122.80K | $287.35K | 0.00% | Add |
| Charles Schwab Investment Management history | 50.82K | $118.93K | 0.00% | Hold |
| BNY Mellon history | 47.81K | $111.88K | 0.00% | Hold |
| Fidelity Management & Research (FMR) history | 14.06K | $32.91K | 0.00% | Reduce |
| Manulife Financial history | 13.08K | $30.62K | 0.00% | Reduce |
| Wells Fargo & Co history | 3.00K | $7.02K | 0.00% | Reduce |
| T. Rowe Price Associates history | 1.29M | $3.03K | 0.00% | Reduce |
| PNC Financial Services history | 600 | $1.40K | 0.00% | Reduce |
| Citigroup Inc history | 352 | $824 | 0.00% | Reduce |
Q2 2025 — 25 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Vanguard Group history | 3.45M | $5.25M | 0.00% | Add |
| Citadel Advisors history | 1.79M | $2.73M | 0.00% | Add |
| Morgan Stanley history | 1.32M | $2.01M | 0.00% | Reduce |
| BlackRock Inc history | 970.60K | $1.48M | 0.00% | Reduce |
| Millennium Management history | 855.33K | $1.30M | 0.00% | Add |
| Geode Capital Management history | 553.46K | $841.55K | 0.00% | Reduce |
| Bank of America Corp history | 498.24K | $757.33K | 0.00% | Reduce |
| UBS Group AG history | 472.04K | $717.50K | 0.00% | Reduce |
| Goldman Sachs Group history | 353.31K | $537.03K | 0.00% | Add |
| Prudential Financial history | 284.00K | $431.68K | 0.00% | Reduce |
| Two Sigma Investments history | 252.36K | $383.58K | 0.00% | Reduce |
| Marshall Wace history | 190.96K | $290.25K | 0.00% | Add |
| Northern Trust Corp history | 133.02K | $202.19K | 0.00% | Reduce |
| Renaissance Technologies history | 126.10K | $191.67K | 0.00% | Add |
| Invesco Ltd history | 84.83K | $128.94K | 0.00% | Add |
| JPMorgan Chase & Co history | 80.80K | $122.81K | 0.00% | Reduce |
| Citigroup Inc history | 62.50K | $95.00K | 0.00% | Add |
| Charles Schwab Investment Management history | 50.62K | $76.94K | 0.00% | Reduce |
| BNY Mellon history | 47.81K | $72.67K | 0.00% | Reduce |
| Manulife Financial history | 39.77K | $60.45K | 0.00% | Reduce |
| AQR Capital Management history | 32.13K | $48.84K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 15.46K | $23.49K | 0.00% | Add |
| Wells Fargo & Co history | 6.69K | $10.16K | 0.00% | Reduce |
| T. Rowe Price Associates history | 2.19M | $3.33K | 0.00% | Add |
| PNC Financial Services history | 1.31K | $1.99K | 0.00% | Add |
Q1 2025 — 27 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| BlackRock Inc history | 3.45M | $4.78M | 0.00% | Add |
| Vanguard Group history | 2.84M | $3.94M | 0.00% | Reduce |
| Morgan Stanley history | 1.71M | $2.37M | 0.00% | Add |
| Geode Capital Management history | 1.14M | $1.58M | 0.00% | Add |
| Bank of America Corp history | 984.10K | $1.36M | 0.00% | Add |
| UBS Group AG history | 490.20K | $678.93K | 0.00% | Add |
| Northern Trust Corp history | 399.77K | $553.68K | 0.00% | Add |
| Goldman Sachs Group history | 330.54K | $457.80K | 0.00% | Reduce |
| Two Sigma Investments history | 321.41K | $445.15K | 0.00% | Reduce |
| Prudential Financial history | 287.49K | $398.17K | 0.00% | Hold |
| JPMorgan Chase & Co history | 251.44K | $348.24K | 0.00% | Reduce |
| Citadel Advisors history | 175.15K | $242.58K | 0.00% | Reduce |
| Millennium Management history | 168.90K | $233.93K | 0.00% | Reduce |
| Charles Schwab Investment Management history | 159.87K | $221.41K | 0.00% | Add |
| BNY Mellon history | 155.17K | $214.91K | 0.00% | Add |
| AQR Capital Management history | 73.96K | $102.43K | 0.00% | New |
| Invesco Ltd history | 61.67K | $85.42K | 0.00% | Add |
| Manulife Financial history | 57.04K | $79.00K | 0.00% | Add |
| Marshall Wace history | 33.46K | $46.51K | 0.00% | Reduce |
| Wells Fargo & Co history | 31.98K | $44.29K | 0.00% | Reduce |
| Citigroup Inc history | 31.46K | $43.57K | 0.00% | Reduce |
| Deutsche Bank AG history | 22.36K | $31.08K | 0.00% | Hold |
| Renaissance Technologies history | 10.90K | $15.10K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 4.16K | $5.76K | 0.00% | Reduce |
| Legal & General Investment Management America history | 3.96K | $5.49K | 0.00% | Hold |
| T. Rowe Price Associates history | 489.32K | $678 | 0.00% | Reduce |
| PNC Financial Services history | 154 | $214 | 0.00% | Add |
New Positions (Q2 2026)
- Norges Bank Investment Management 4.11M sh · $12.79M
- Franklin Resources 2.41M sh · $7.51M
- Manulife Financial 182.06K sh · $566.19K
- Deutsche Bank AG 110.96K sh · $345.09K
- JPMorgan Chase & Co 59.37K sh · $184.63K
- Prudential Financial 16.98K sh · $52.82K
- Legal & General Investment Management America 10.92K sh · $34.01K
Fully Exited (vs previous quarter)
- Point72 Asset Management sold 246.62K sh · $663.39K
- Balyasny Asset Management sold 11.15K sh · $30.00K
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 | Q3 2024 | Q2 2024 | Q1 2024 | Q4 2023 | Q3 2023 | Q2 2023 | Q1 2023 | Q4 2022 | Q3 2022 | Q2 2022 | Q1 2022 | Q4 2021 | Q3 2021 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BlackRock Inc | 10.75M | 2.37M | 2.33M | 1.62M | 970.60K | 3.45M | 3.40M | 4.79M | — | — | — | — | — | — | — | — | — | — | — | — |
| Citadel Advisors | 4.13M | 560.80K | 256.10K | 950.26K | 1.79M | 175.15K | 204.40K | 56.91K | 360.65K | 93.24K | 95.78K | 20.96K | 20.00K | 54.70K | 114.98K | 101.10K | 1.25M | 1.48M | 1.56M | 615.97K |
| Norges Bank Investment Management | 4.11M | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Geode Capital Management | 3.46M | 1.13M | 1.09M | 920.34K | 553.46K | 1.14M | 1.11M | 1.09M | 970.57K | 773.09K | 753.18K | 691.87K | 502.73K | 219.85K | 231.26K | 129.48K | 129.48K | 122.61K | 122.61K | 118.64K |
| Franklin Resources | 2.41M | — | — | — | — | — | — | — | 18.90K | 16.12K | 12.06K | 12.06K | — | — | — | — | — | — | — | — |
| Goldman Sachs Group | 2.21M | 1.03M | 677.17K | 272.60K | 353.31K | 330.54K | 511.51K | 321.36K | 395.82K | 425.17K | 238.14K | 300.05K | — | 161.60K | — | 11.00K | 13.95K | 13.86K | 13.17K | 42.97K |
| Millennium Management | 2.07M | 5.90M | 2.74M | 686.81K | 855.33K | 168.90K | 511.61K | 1.73M | 698.32K | 559.37K | — | — | 371.07K | 572.12K | 351.12K | 230.55K | 238.24K | 361.00K | 142.14K | 121.62K |
| Marshall Wace | 1.57M | 2.18M | 959.08K | 1.33M | 190.96K | 33.46K | 193.22K | 283.81K | 330.19K | 171.19K | — | — | 85.70K | 329.29K | 51.97K | — | — | 12.72K | 6.94K | 64.16K |
| Renaissance Technologies | 1.54M | 2.04M | 1.52M | 1.34M | 126.10K | 10.90K | 230.16K | — | — | 59.00K | — | — | 77.70K | 112.80K | 163.40K | 687.46K | 335.00K | 199.40K | — | — |
| UBS Group AG | 1.47M | 606.66K | 415.68K | 405.12K | 472.04K | 490.20K | 434.56K | 22.77K | 68.57K | 209.48K | 138.65K | 34.98K | 14.92K | 1.62K | 1.55K | 50.00K | — | — | — | 964 |
| Two Sigma Investments | 1.41M | 2.50M | 1.84M | 470.48K | 252.36K | 321.41K | 751.89K | 420.48K | 395.44K | 36.67K | 74.79K | 46.73K | 45.99K | 84.67K | 14.30K | 38.06K | 96.21K | 149.93K | 68.57K | 79.33K |
| Morgan Stanley | 1.35M | 1.41M | 1.34M | 1.47M | 1.32M | 1.71M | 1.44M | 828.83K | 295.51K | 885.70K | 387.38K | 222.02K | 207.36K | 202.36K | 200.16K | 169.42K | 121.90K | 99.90K | 50.57K | 79.92K |
| Northern Trust Corp | 1.01M | 238.44K | 238.44K | 226.99K | 133.02K | 399.77K | 382.15K | 388.00K | 306.41K | 304.16K | 310.67K | 299.77K | 214.48K | 40.15K | 34.20K | 29.31K | 29.31K | 29.31K | 29.31K | 24.97K |
| Bank of America Corp | 493.31K | 269.26K | 14.39K | 268.06K | 498.24K | 984.10K | 546.46K | 478.67K | 169.10K | 238.10K | 160.52K | 141.19K | 25.50K | 8.85K | 1.23K | 9.19K | 15.25K | 32.38K | 7.11K | 14.51K |
| Charles Schwab Investment Management | 374.89K | 50.82K | 50.82K | 50.82K | 50.62K | 159.87K | 109.26K | 125.84K | 118.33K | 93.53K | 96.31K | 96.00K | 68.55K | 10.08K | 10.08K | — | — | — | — | — |
| BNY Mellon | 304.82K | 54.30K | 54.05K | 47.81K | 47.81K | 155.17K | 141.15K | 158.09K | 190.22K | 146.06K | 156.95K | 145.47K | 125.30K | 25.74K | 25.74K | 18.82K | 18.82K | 22.67K | 10.29K | 10.29K |
| Wellington Management Group | 286.21K | 247.66K | — | — | — | — | 180.16K | 157.05K | 158.81K | 1.01M | 539.88K | 246.57K | — | — | — | — | — | — | — | 534.70K |
| Invesco Ltd | 241.56K | 192.38K | 189.19K | 122.80K | 84.83K | 61.67K | 13.49K | 13.87K | 15.32K | 744.78K | 1.40M | 854.04K | 856.89K | — | — | — | — | — | — | — |
| Wells Fargo & Co | 196.87K | 6.00K | 2.00K | 3.00K | 6.69K | 31.98K | 40.41K | 24.16K | 19.31K | 13.38K | 14.06K | 31.04K | 13.74K | 2.05K | 1.32K | 3.81K | 3.78K | 3.66K | 15.43K | 22.98K |
| Citigroup Inc | 184.23K | 27.47K | 73.77K | 352 | 62.50K | 31.46K | 35.75K | 34.57K | 22.89K | 301.89K | 86.55K | 49.70K | 7.62K | 45.75K | — | 340 | 437 | 1.80K | 2.46K | 2.00K |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details