Cabaletta Bio Inc
Ownership
Ownership Structure
Who owns Cabaletta Bio Inc (CABA)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 83.4% of the shares are freely tradable; institutional investors hold 63.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Jennison Associates LLC | 11.82 | 20,033,730 | +123.3 | 06/30/2026 |
| T. Rowe Price Investment Management,Inc. | 11.13 | 18,869,907 | +70.3 | 06/30/2026 |
| Bain Capital Life Sciences Investors, LLC | 10.17 | 17,241,445 | +78.2 | 06/30/2026 |
| BlackRock Inc | 6.34 | 10,754,701 | +353.2 | 06/30/2026 |
| Adage Capital Partners Gp LLC | 5.41 | 9,174,758 | +3.9 | 06/30/2026 |
| State Street Corp | 4.62 | 7,839,305 | +1,568.0 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.26 | 7,227,018 | +79.4 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| T. Rowe Price Small-Cap Value | 4.95 | 8,397,995 | +10.0 | 09/30/2026 |
| PGIM Jennison Health Sciences Z | 4.19 | 7,100,015 | +43.1 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.08 | 5,215,188 | +0.0 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: November 2, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.