Funds holding CABALETTA BIO INC
ISIN US12674W1099 · United States
- Fund holders
- 137
- Of which ETFs
- 18 119 other funds
- Value held
- 153.1M $
- Share of capital
- 28.7 % of 169.5M shares on Aug 7, 2026
| Fund | Shares | Value | Weight in fund | Share of capital | |
|---|---|---|---|---|---|
| VIP Extended Market Index Portfolio Variable Insurance Products Fund II | 8,511 | 26.5K $ | 0.00 % | 0.01 % | as of Jun 30, 2026 ↗ |
| Small Company Growth Portfolio Wilshire Mutual Funds Inc | 8,124 | 25.3K $ | 0.10 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Voya VACS Index Series SC Portfolio Voya VARIABLE PORTFOLIOS INC | 7,785 | 24.2K $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| BlackRock Advantage SMID Cap V.I. Fund BlackRock Variable Series Funds, Inc. | 6,148 | 19.1K $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Nationwide Fundamental All Cap Equity Portfolio Nationwide Mutual Funds | 5,304 | 14.2K $ | 0.00 % | 0.00 % | as of Jul 31, 2026 ↗ |
| PD Small-Cap Growth Index Portfolio PACIFIC SELECT FUND | 5,179 | 16.1K $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Strategic Equity Allocation Trust John Hancock Variable Insurance Trust | 5,084 | 15.8K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Invesco Nasdaq Biotechnology ETF Invesco Exchange-Traded Fund Trust II | 5,083 | 19.2K $ | 0.03 % | 0.00 % | as of May 31, 2026 ↗ |
| PD Small-Cap Value Index Portfolio PACIFIC SELECT FUND | 4,836 | 15K $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Dimensional US Core Equity 1 ETF Dimensional ETF Trust | 4,764 | 12.8K $ | 0.00 % | 0.00 % | as of Jul 31, 2026 ↗ |
| SmallCap Value Fund II Principal Funds, Inc | 4,511 | 12.1K $ | 0.00 % | 0.00 % | as of Jul 31, 2026 ↗ |
| U.S. CORE EQUITY 2 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 4,415 | 11.8K $ | 0.00 % | as of Jul 31, 2026 ↗ | |
| SmallCap Growth Fund I Principal Funds, Inc | 4,368 | 11.7K $ | 0.00 % | 0.00 % | as of Jul 31, 2026 ↗ |
| EQ/Franklin Small Cap Value Managed Volatility Portfolio EQ Advisors Trust | 3,941 | 12.3K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| SA U.S. Small Company Fund SA FUNDS INVESTMENT TRUST | 3,808 | 11.8K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| ProShares Ultra Nasdaq Biotechnology ProShares Trust | 3,557 | 13.4K $ | 0.02 % | 0.00 % | as of May 31, 2026 ↗ |
| Penn Series Small Cap Index Fund Penn Series Funds Inc | 3,300 | 10.3K $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| State Street Total Return V.I.S. Fund STATE STREET VARIABLE INSURANCE SERIES FUNDS INC | 2,842 | 8.8K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Small-Cap Equity Portfolio PACIFIC SELECT FUND | 2,632 | 8.2K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Pacer WealthShield ETF Pacer Funds Trust | 2,440 | 6.5K $ | 0.03 % | 0.00 % | as of Jul 31, 2026 ↗ |
| VIP Total Market Index Portfolio Variable Insurance Products Fund II | 2,368 | 7.4K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| T. Rowe Price Moderate Allocation Portfolio T. ROWE PRICE EQUITY SERIES, INC. | 1,884 | 5.9K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Total Stock Market Index Trust John Hancock Variable Insurance Trust | 1,831 | 5.7K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Small Company Value Portfolio Wilshire Mutual Funds Inc | 1,750 | 5.4K $ | 0.02 % | 0.00 % | as of Jun 30, 2026 ↗ |
| ULTRA SMALL CAP PROFUND ProFunds | 1,449 | 3.9K $ | 0.01 % | 0.00 % | as of Jul 31, 2026 ↗ |
| State Street Balanced Index Fund STATE STREET INSTITUTIONAL INVESTMENT TRUST | 1,391 | 4.3K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Fidelity Enhanced Small Cap Growth ETF Fidelity Covington Trust | 1,138 | 3.5K $ | 0.06 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Blackstone Alternative Multi-Strategy Fund Blackstone Alternative Investment Funds | 814 | 2.5K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Knights of Columbus U.S. ALL CAP INDEX FUND ADVISORS' INNER CIRCLE III | 620 | 1.7K $ | 0.00 % | 0.00 % | as of Jul 31, 2026 ↗ |
| Russell 2000 2x Strategy Fund Rydex Dynamic Funds | 606 | 1.9K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| PROFUND VP ULTRA SMALL CAP ProFunds | 463 | 1.4K $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| PROFUND VP SMALL CAP ProFunds | 302 | 939.2 $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Russell 2000 Fund Rydex Series Funds | 279 | 867.7 $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Russell 2000 1.5x Strategy Fund Rydex Series Funds | 167 | 519.4 $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Columbia Research Enhanced Small Cap ETF Columbia ETF Trust I | 167 | 519.4 $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| SMALL-CAP PROFUND ProFunds | 95 | 254.6 $ | 0.00 % | 0.00 % | as of Jul 31, 2026 ↗ |
| Russell 2000(R) 1.5x Strategy Fund Rydex Variable Trust | 32 | 99.5 $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table ranks funds by number of shares. This one ranks them by the weight of the company in each fund.
| Fund | Weight in fund | |
|---|---|---|
| Jacob Discovery Fund Jacob Funds Inc. | 1.41 % | as of May 31, 2026 ↗ |
| PGIM Jennison Health Sciences Fund Prudential Sector Funds, Inc. | 1.35 % | as of May 29, 2026 ↗ |
| T. Rowe Price Health Care ETF T. Rowe Price Exchange-Traded Funds, Inc. | 0.62 % | as of Jun 30, 2026 ↗ |
| Virtus Biotech Clinical Trials Etf ETFis Series Trust I | 0.60 % | as of Jul 31, 2026 ↗ |
| Ultra-Small Company Fund Bridgeway Funds, Inc. | 0.41 % | as of Jun 30, 2026 ↗ |
| Ultra-Small Company Market Fund Bridgeway Funds, Inc. | 0.26 % | as of Jun 30, 2026 ↗ |
| PGIM Jennison Small Company Fund Prudential Jennison Small Co Fund, Inc. | 0.24 % | as of Jun 30, 2026 ↗ |
| T. Rowe Price Small-Cap Value Fund, Inc. T. ROWE PRICE SMALL-CAP VALUE FUND, INC. | 0.23 % | as of Jun 30, 2026 ↗ |
| Small Cap Value Portfolio NORTHWESTERN MUTUAL SERIES FUND INC | 0.23 % | as of Jun 30, 2026 ↗ |
| Small Company Value Trust John Hancock Variable Insurance Trust | 0.22 % | as of Jun 30, 2026 ↗ |
Quarter after quarter
Each row is one quarter of SEC filings, newest first. The change compares each quarter with the one before.
| Quarter | Holders | Change | Shares | Change |
|---|---|---|---|---|
| 2026Q3 | 137 | +89 | 48,603,289 | +171.4 % |
| 2026Q2 | 48 | +11 | 17,905,422 | +9.5 % |
| 2026Q1 | 37 | +8 | 16,355,969 | +18.3 % |
| 2025Q4 | 29 | -37 | 13,827,123 | +12.2 % |
| 2025Q3 | 66 | -51 | 12,320,446 | +13.0 % |
| 2025Q2 | 117 | -9 | 10,902,416 | -14.9 % |
| 2025Q1 | 126 | -14 | 12,808,857 | -20.1 % |
| 2024Q4 | 140 | -22 | 16,039,497 | -2.7 % |
| 2024Q3 | 162 | -12 | 16,482,869 | -3.3 % |
| 2024Q2 | 174 | +22 | 17,043,429 | +25.0 % |
| 2024Q1 | 152 | +32 | 13,639,442 | +21.4 % |
| 2023Q4 | 120 | 11,239,258 |
Institutional managers
104 managers declare this company to the SEC (Form 13F). The table shows the 25 largest.
| Manager | Shares | Value | |
|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 11,080,005 | 29.8K $ | as of Mar 31, 2026 |
| Bain Capital Life Sciences Investors, LLC | 9,677,125 | 26M $ | as of Mar 31, 2026 |
| JENNISON ASSOCIATES LLC | 8,970,578 | 24.1M $ | as of Mar 31, 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 8,829,758 | 23.8M $ | as of Mar 31, 2026 |
| MILLENNIUM MANAGEMENT LLC | 5,903,281 | 15.9M $ | as of Mar 31, 2026 |
| Cormorant Asset Management, LP | 5,500,000 | 14.8M $ | as of Mar 31, 2026 |
| TWO SIGMA INVESTMENTS, LP | 2,497,917 | 6.7M $ | as of Mar 31, 2026 |
| BlackRock, Inc. | 2,373,003 | 6.4M $ | as of Mar 31, 2026 |
| MARSHALL WACE, LLP | 2,179,818 | 5.9M $ | as of Mar 31, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | 2,036,663 | 5.5M $ | as of Mar 31, 2026 |
| Qube Research & Technologies Ltd | 1,934,990 | 5.2M $ | as of Mar 31, 2026 |
| MORGAN STANLEY | 1,408,152 | 3.8M $ | as of Mar 31, 2026 |
| Opaleye Management Inc. | 1,380,000 | 3.7M $ | as of Mar 31, 2026 |
| Woodline Partners LP | 1,250,242 | 3.4M $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 1,133,245 | 3M $ | as of Mar 31, 2026 |
| SUPERSTRING CAPITAL MANAGEMENT LP | 1,066,239 | 2.9M $ | as of Mar 31, 2026 |
| Ikarian Capital, LLC | 900,000 | 2.4M $ | as of Mar 31, 2026 |
| GOLDMAN SACHS GROUP INC | 783,220 | 2.1M $ | as of Mar 31, 2026 |
| CANTOR FITZGERALD, L. P. | 765,000 | 2.1M $ | as of Mar 31, 2026 |
| SCHRODER INVESTMENT MANAGEMENT GROUP | 756,637 | 1.9M $ | as of Mar 31, 2026 |
| DIMENSIONAL FUND ADVISORS LP | 740,648 | 2M $ | as of Mar 31, 2026 |
| Burkehill Global Management, LP | 700,000 | 1.9M $ | as of Mar 31, 2026 |
| UBS Group AG | 606,664 | 1.6M $ | as of Mar 31, 2026 |
| GSA CAPITAL PARTNERS LLP | 561,726 | 1.5K $ | as of Mar 31, 2026 |
| KVP Capital Advisors, LP | 505,431 | 1.4M $ | as of Mar 31, 2026 |
Declared shareholders of CABALETTA BIO INC
There are 8 beneficial ownership filings. These stakes do not add up. An asset manager that files includes its own funds, which already appear among the funds on this page.
| Shareholder | Declared stake | Shares | |
|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 11.60 % | 18,869,907 | as of Jun 30, 2026 · SCHEDULE 13G |
| Bain Capital Life Sciences Opportunities III, LP | 9.99 % | 17,241,445 | as of Jun 30, 2026 · SCHEDULE 13G |
| Adage Capital Management, L.P. and 2 others | 8.43 % | 14,174,758 | as of Jun 30, 2026 · SCHEDULE 13G |
| Cormorant Asset Management, LP and 1 other | 5.95 % | 10,000,000 | as of Jun 30, 2026 · SCHEDULE 13G |
| BlackRock, Inc. | 5.90 % | 9,613,912 | as of Jun 30, 2026 · SCHEDULE 13G |
| Norges Bank | 5.382 % | 8,775,653 | as of Jun 30, 2026 · SCHEDULE 13G |
| Vanguard Capital Management | 5.08 % | 8,295,783 | as of Jun 30, 2026 · SCHEDULE 13G |
| Millennium Management LLC and 2 others | 1.30 % | 2,068,491 | as of Jun 30, 2026 · SCHEDULE 13G |
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