Funds holding Cabaletta Bio Inc
ISIN US12674W1099 · United States
- Fund holders
- 48
- Of which ETFs
- 9 39 other funds
- Value held
- 51.4M $
- Share of capital
- 10.6 % of 169.5M shares on Aug 7, 2026
| Fund | Shares | Value | Weight in fund | Share of capital | |
|---|---|---|---|---|---|
| T. Rowe Price Small-Cap Value Fund, Inc. T. ROWE PRICE SMALL-CAP VALUE FUND, INC. | 5,784,872 | 15.6M $ | 0.17 % | 3.41 % | as of Mar 31, 2026 ↗ |
| PGIM Jennison Health Sciences Fund Prudential Sector Funds, Inc. | 3,518,102 | 11.7M $ | 0.80 % | 2.08 % | as of Feb 27, 2026 ↗ |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 2,831,388 | 7.6M $ | 0.00 % | 1.67 % | as of Mar 31, 2026 ↗ |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 1,096,889 | 3M $ | 0.00 % | 0.65 % | as of Mar 31, 2026 ↗ |
| iShares Biotechnology ETF iShares Trust | 633,353 | 1.7M $ | 0.02 % | 0.37 % | as of Mar 31, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 612,379 | 2M $ | 0.01 % | 0.36 % | as of Feb 28, 2026 ↗ |
| T. Rowe Price Health Sciences Fund, Inc. T. ROWE PRICE HEALTH SCIENCES FUND, INC. | 608,501 | 1.6M $ | 0.02 % | 0.36 % | as of Mar 31, 2026 ↗ |
| Dimensional U.S. Small Cap ETF Dimensional ETF Trust | 334,526 | 1M $ | 0.01 % | 0.20 % | as of Apr 30, 2026 ↗ |
| Small Cap Value Portfolio NORTHWESTERN MUTUAL SERIES FUND INC | 318,113 | 855.7K $ | 0.15 % | 0.19 % | as of Mar 31, 2026 ↗ |
| U.S. SMALL CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 301,437 | 901.3K $ | 0.00 % | 0.18 % | as of Apr 30, 2026 ↗ |
| iShares Micro-Cap ETF iShares Trust | 233,857 | 629.1K $ | 0.05 % | 0.14 % | as of Mar 31, 2026 ↗ |
| Invesco RAFI US 1500 Small-Mid ETF Invesco Exchange-Traded Fund Trust | 186,623 | 558K $ | 0.02 % | 0.11 % | as of Apr 30, 2026 ↗ |
| Fidelity Total Market Index Fund Fidelity Concord Street Trust | 173,223 | 575.1K $ | 0.00 % | 0.10 % | as of Feb 28, 2026 ↗ |
| Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 138,562 | 460K $ | 0.00 % | 0.08 % | as of Feb 28, 2026 ↗ |
| Ultra-Small Company Fund Bridgeway Funds, Inc. | 131,497 | 353.7K $ | 0.41 % | 0.08 % | as of Mar 31, 2026 ↗ |
| Ultra-Small Company Market Fund Bridgeway Funds, Inc. | 122,675 | 330K $ | 0.27 % | 0.07 % | as of Mar 31, 2026 ↗ |
| U.S. MICRO CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 80,701 | 241.3K $ | 0.00 % | 0.05 % | as of Apr 30, 2026 ↗ |
| Avantis U.S. Small Cap Equity ETF American Century ETF Trust | 80,330 | 266.7K $ | 0.01 % | 0.05 % | as of Feb 28, 2026 ↗ |
| Small Company Value Trust John Hancock Variable Insurance Trust | 70,113 | 188.6K $ | 0.15 % | 0.04 % | as of Mar 31, 2026 ↗ |
| Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 67,179 | 223K $ | 0.00 % | 0.04 % | as of Feb 28, 2026 ↗ |
| Jacob Discovery Fund Jacob Funds Inc. | 55,000 | 182.6K $ | 1.12 % | 0.03 % | as of Feb 28, 2026 ↗ |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS | 51,544 | 138.7K $ | 0.00 % | 0.03 % | as of Mar 31, 2026 ↗ |
| Schwab Total Stock Market Index Fund SCHWAB CAPITAL TRUST | 50,606 | 151.3K $ | 0.00 % | 0.03 % | as of Apr 30, 2026 ↗ |
| Fidelity ZERO Total Market Index Fund Fidelity Concord Street Trust | 49,759 | 148.8K $ | 0.00 % | 0.03 % | as of Apr 30, 2026 ↗ |
| VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS | 49,170 | 132.3K $ | 0.00 % | 0.03 % | as of Mar 31, 2026 ↗ |
| T. Rowe Price Health Sciences Portfolio T. ROWE PRICE EQUITY SERIES, INC. | 44,485 | 119.7K $ | 0.02 % | 0.03 % | as of Mar 31, 2026 ↗ |
| T. Rowe Price Health Care ETF T. Rowe Price Exchange-Traded Funds, Inc. | 43,630 | 117.4K $ | 0.58 % | 0.03 % | as of Mar 31, 2026 ↗ |
| Fidelity ZERO Extended Market Index Fund Fidelity Concord Street Trust | 33,544 | 100.3K $ | 0.00 % | 0.02 % | as of Apr 30, 2026 ↗ |
| Dimensional US Core Equity Market ETF Dimensional ETF Trust | 22,315 | 66.7K $ | 0.00 % | 0.01 % | as of Apr 30, 2026 ↗ |
| JNL/DFA U.S. Small Cap Fund JNL Series Trust | 18,071 | 48.6K $ | 0.01 % | 0.01 % | as of Mar 31, 2026 ↗ |
| U.S. CORE EQUITY 1 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 17,765 | 53.1K $ | 0.00 % | 0.01 % | as of Apr 30, 2026 ↗ |
| 1290 VT Micro Cap Portfolio EQ Advisors Trust | 16,320 | 43.9K $ | 0.03 % | 0.01 % | as of Mar 31, 2026 ↗ |
| U.S. VECTOR EQUITY PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 15,719 | 47K $ | 0.00 % | 0.01 % | as of Apr 30, 2026 ↗ |
| Blackstone Alternative Multi-Strategy Fund Blackstone Alternative Investment Funds | 15,600 | 42K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| Goldman Sachs Absolute Return Tracker Fund GOLDMAN SACHS TRUST | 15,226 | 41K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| T. Rowe Price Extended Equity Market Index Fund T. ROWE PRICE INDEX TRUST, INC. | 14,700 | 39.5K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| Fidelity Flex Small Cap Index Fund Fidelity Salem Street Trust | 14,545 | 43.5K $ | 0.01 % | 0.01 % | as of Apr 30, 2026 ↗ |
| Avantis U.S. Small Cap Equity Fund American Century ETF Trust | 9,741 | 32.3K $ | 0.03 % | 0.01 % | as of Feb 28, 2026 ↗ |
| Victory Extended Market Index Fund Victory Portfolios III | 9,647 | 28.8K $ | 0.00 % | 0.01 % | as of Apr 30, 2026 ↗ |
| Small Cap Core Fund Northern Funds | 9,306 | 25K $ | 0.01 % | 0.01 % | as of Mar 31, 2026 ↗ |
| Invesco Nasdaq Biotechnology ETF Invesco Exchange-Traded Fund Trust II | 5,395 | 17.9K $ | 0.02 % | 0.00 % | as of Feb 28, 2026 ↗ |
| Dimensional US Core Equity 1 ETF Dimensional ETF Trust | 4,764 | 14.2K $ | 0.00 % | 0.00 % | as of Apr 30, 2026 ↗ |
| ProShares Ultra Nasdaq Biotechnology ProShares Trust | 4,445 | 14.8K $ | 0.02 % | 0.00 % | as of Feb 28, 2026 ↗ |
| U.S. CORE EQUITY 2 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 4,415 | 13.2K $ | 0.00 % | as of Apr 30, 2026 ↗ | |
| Health Sciences Trust John Hancock Variable Insurance Trust | 2,181 | 5.9K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Total Stock Market Index Trust John Hancock Variable Insurance Trust | 1,648 | 4.4K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| EQ/T.Rowe Price Health Sciences Portfolio EQ Advisors Trust | 1,057 | 2.8K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Knights of Columbus U.S. ALL CAP INDEX FUND ADVISORS' INNER CIRCLE III | 504 | 1.5K $ | 0.00 % | 0.00 % | as of Apr 30, 2026 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table counts shares; this one measures what the company weighs inside each fund.
| Fund | Weight in fund | |
|---|---|---|
| Jacob Discovery Fund Jacob Funds Inc. | 1.12 % | as of Feb 28, 2026 ↗ |
| PGIM Jennison Health Sciences Fund Prudential Sector Funds, Inc. | 0.80 % | as of Feb 27, 2026 ↗ |
| T. Rowe Price Health Care ETF T. Rowe Price Exchange-Traded Funds, Inc. | 0.58 % | as of Mar 31, 2026 ↗ |
| Ultra-Small Company Fund Bridgeway Funds, Inc. | 0.41 % | as of Mar 31, 2026 ↗ |
| Ultra-Small Company Market Fund Bridgeway Funds, Inc. | 0.27 % | as of Mar 31, 2026 ↗ |
| T. Rowe Price Small-Cap Value Fund, Inc. T. ROWE PRICE SMALL-CAP VALUE FUND, INC. | 0.17 % | as of Mar 31, 2026 ↗ |
| Small Cap Value Portfolio NORTHWESTERN MUTUAL SERIES FUND INC | 0.15 % | as of Mar 31, 2026 ↗ |
| Small Company Value Trust John Hancock Variable Insurance Trust | 0.15 % | as of Mar 31, 2026 ↗ |
| iShares Micro-Cap ETF iShares Trust | 0.05 % | as of Mar 31, 2026 ↗ |
| Avantis U.S. Small Cap Equity Fund American Century ETF Trust | 0.03 % | as of Feb 28, 2026 ↗ |
Quarter after quarter
Each SEC quarterly data set, newest first. The change is read against the quarter before it.
| Quarter | Holders | Change | Shares | Change |
|---|---|---|---|---|
| 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 25 largest follow.
| 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
3 beneficial ownership filings. These stakes do not add up: an asset manager filing aggregates its own funds, already counted above.
| Shareholder | Declared stake | Shares | |
|---|---|---|---|
| Jennison Associates LLC | 11.40 % | 24,267,980 | as of May 29, 2026 · SCHEDULE 13G |
| PRUDENTIAL FINANCIAL INC | 11.40 % | 24,267,980 | as of Jun 5, 2026 · SCHEDULE 13G |
| Cormorant Asset Management, LP and 1 other | 9.03 % | 10,500,000 | as of Mar 31, 2026 · SCHEDULE 13G |
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Titelia. "Funds holding Cabaletta Bio Inc". https://titelia.com/en/stocks/cabaletta-bio-inc-US12674W1099