Y-mAbs Therapeutics, Inc.
YMABDelisted Sep 16, 2025- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001722964
Y-mAbs Therapeutics, Inc. was delisted on Sep 16, 2025; its insiders filed their last Form 4 on Sep 19, 2025; 97 institutions reported holding it in 13F filings for Q2 2025, worth $125.9M in total; no superinvestor held it.
13F holders, Q4 2024
Institutional positions in Y-mAbs Therapeutics, Inc. as of Dec 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 113
- +8 vs. Q3 2024
- Shares held
- 28.8M
- +3.06M (+11.9%) vs. Q3 2024
- Total value
- $225.5M
- −$113.1M (−33.4%) vs. Q3 2024
- New holders
- 19
- 39 more added
- Sold out
- 11
- 31 more reduced
Compare with Q3 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting YMAB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 0 | $0 |
| Q1 2026 | 0 | $0 |
| Q4 2025 | 0 | $0 |
| Q3 2025 | 2 | $78.3K |
| Q2 2025 | 97 | $125.9M |
| Q1 2025 | 103 | $127.6M |
| Q4 2024 | 113 | $225.5M |
| Q3 2024 | 105 | $338.5M |
| Q2 2024 | 96 | $294.2M |
| Q1 2024 | 96 | $374.0M |
| Q4 2023 | 94 | $138.0M |
| Q3 2023 | 99 | $107.3M |
| Q2 2023 | 95 | $132.4M |
| Q1 2023 | 86 | $95.4M |
| Q4 2022 | 91 | $94.2M |
| Q3 2022 | 100 | $339.7M |
| Q2 2022 | 91 | $374.7M |
| Q1 2022 | 88 | $300.6M |
| Q4 2021 | 97 | $417.1M |
| Q3 2021 | 97 | $749.0M |
| Q2 2021 | 100 | $886.9M |
| Q1 2021 | 117 | $804.8M |
Institutions, Q4 2024
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Paradigm Biocapital Advisors LP | 4,236,346 | $33.2M | 1.15% | +150,000+3.7% | Added |
| BlackRock, Inc. | 2,998,472 | $23.5M | 0.00% | −26,763−0.9% | Reduced |
| Acorn Capital Advisors, LLC | 2,861,825 | $22.4M | 12.06% | +2,861,825 | New |
| Sofinnova Investments, Inc. | 2,194,278 | $17.2M | 1.26% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,000,022 | $15.7M | 0.00% | −35,341−1.7% | Reduced |
| Polar Capital Holdings Plc | 1,831,000 | $14.3M | 0.08% | 00.0% | Unchanged |
| Caligan Partners LP | 1,767,982 | $13.8M | 3.51% | +572,729+47.9% | Added |
| State Street Corp | 1,314,409 | $10.3M | 0.00% | +104,628+8.6% | Added |
| Logos Global Management LP | 1,000,000 | $7.83M | 0.92% | +200,000+25.0% | Added |
| Geode Capital Management, LLC | 822,309 | $6.44M | 0.00% | +8,820+1.1% | Added |
| Pictet Asset Management Holding SA | 756,297 | $5.92M | 0.01% | +68,317+9.9% | Added |
| Boothbay Fund Management, LLC | 693,693 | $5.43M | 0.17% | +136,264+24.4% | Added |
| D. E. Shaw & Co., Inc. | 615,131 | $4.82M | 0.01% | −172,405−21.9% | Reduced |
| Dimensional Fund Advisors LP | 463,235 | $3.63M | 0.00% | −14,429−3.0% | Reduced |
| Cormorant Asset Management, LP | 425,000 | $3.33M | 0.18% | −1,025,000−70.7% | Reduced |
| Northern Trust Corp | 359,223 | $2.81M | 0.00% | +21,936+6.5% | Added |
| Soleus Capital Management, L.P. | 349,982 | $2.74M | 0.21% | −50,000−12.5% | Reduced |
| Morgan Stanley | 320,807 | $2.51M | 0.00% | +72,085+29.0% | Added |
| Charles Schwab Investment Management Inc | 284,540 | $2.23M | 0.00% | +4,963+1.8% | Added |
| Citadel Advisors LLC | 221,914 | $1.74M | 0.00% | −52,633−19.2% | Reduced |
| Goldman Sachs Group Inc | 219,175 | $1.72M | 0.00% | −3,425−1.5% | Reduced |
| Infinitum Asset Management, LLC | 155,529 | $1.22M | 0.64% | +155,529 | New |
| Jacobs Levy Equity Management, Inc | 149,681 | $1.17M | 0.00% | 00.0% | Unchanged |
| Wellington Management Group LLP | 133,263 | $1.04M | 0.00% | −3,451−2.5% | Reduced |
| Renaissance Technologies LLC | 131,600 | $1.03M | 0.00% | +103,700+371.7% | Added |
| Bank of America Corp | 127,159 | $995.7K | 0.00% | +47,439+59.5% | Added |
| Nuveen Asset Management, LLC | 112,483 | $880.7K | 0.00% | 00.0% | Unchanged |
| Rice Hall James & Associates, LLC | 108,549 | $849.9K | 0.05% | −135−0.1% | Reduced |
| Squarepoint Ops LLC | 102,968 | $806.2K | 0.00% | −51,963−33.5% | Reduced |
| JPMorgan Chase & Co | 97,660 | $764.7K | 0.00% | +67,325+221.9% | Added |
| Bank of New York Mellon Corp | 92,449 | $723.9K | 0.00% | +894+1.0% | Added |
| Two Sigma Investments, LP | 88,337 | $691.7K | 0.00% | +21,196+31.6% | Added |
| Barclays PLC | 75,862 | $594.0K | 0.00% | +6,640+9.6% | Added |
| Two Sigma Advisers, LP | 73,900 | $578.6K | 0.00% | −11,100−13.1% | Reduced |
| Franklin Resources Inc | 67,367 | $527.5K | 0.00% | +78+0.1% | Added |
| Swiss National Bank | 60,300 | $472.1K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 55,677 | $436.0K | 0.00% | +45,327+437.9% | Added |
| Alliancebernstein L.P. | 54,780 | $428.9K | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 52,356 | $409.9K | 0.00% | +7,765+17.4% | Added |
| FMR LLC | 51,722 | $405.0K | 0.00% | +15,306+42.0% | Added |
| Rhumbline Advisers | 51,452 | $402.9K | 0.00% | −863−1.6% | Reduced |
| Bridgeway Capital Management, LLC | 49,900 | $390.7K | 0.01% | −26,100−34.3% | Reduced |
| Citigroup Inc | 49,231 | $385.5K | 0.00% | +21,872+79.9% | Added |
| Marshall Wace, LLP | 49,225 | $385.4K | 0.00% | +33,716+217.4% | Added |
| Cubist Systematic Strategies, LLC | 48,011 | $375.9K | 0.01% | +48,011 | New |
| Federated Hermes, Inc. | 44,474 | $348.2K | 0.00% | 00.0% | Unchanged |
| Sapient Capital LLC | 43,700 | $342.2K | 0.01% | 00.0% | Unchanged |
| STRS Ohio | 43,400 | $339.8K | 0.00% | 00.0% | Unchanged |
| Rafferty Asset Management, LLC | 41,255 | $323.0K | 0.00% | +6,178+17.6% | Added |
| UBS Group AG | 38,932 | $304.8K | 0.00% | −5,654−12.7% | Reduced |
| State of Wisconsin Investment Board | 37,857 | $296.4K | 0.00% | −17,811−32.0% | Reduced |
| Alps Advisors Inc | 36,215 | $283.6K | 0.00% | +1,984+5.8% | Added |
| Virtus ETF Advisers LLC | 35,789 | $280.2K | 0.11% | +8,457+30.9% | Added |
| Millennium Management LLC | 35,447 | $277.6K | 0.00% | −36,139−50.5% | Reduced |
| Legal & General Group Plc | 34,942 | $273.6K | 0.00% | +1,138+3.4% | Added |
| Jump Financial, LLC | 33,380 | $261.4K | 0.01% | +33,380 | New |
| Jane Street Group, LLC | 33,203 | $260.0K | 0.00% | +14,267+75.3% | Added |
| ExodusPoint Capital Management, LP | 32,256 | $253.0K | 0.00% | +32,256 | New |
| Deutsche Bank AG | 32,253 | $252.5K | 0.00% | +11,059+52.2% | Added |
| California State Teachers Retirement System | 29,481 | $230.8K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 28,489 | $223.1K | 0.00% | +28,489 | New |
| Engineers Gate Manager LP | 27,386 | $214.4K | 0.00% | +27,386 | New |
| Quest Partners LLC | 27,135 | $212.5K | 0.03% | +26,748+6,911.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 22,818 | $178.6K | 0.00% | +2,545+12.6% | Added |
| Principal Financial Group Inc | 22,197 | $173.8K | 0.00% | +1,903+9.4% | Added |
| Intech Investment Management LLC | 22,176 | $173.6K | 0.00% | +12,027+118.5% | Added |
| MetLife Investment Management | 22,141 | $173.4K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 20,768 | $162.6K | 0.01% | +9,468+83.8% | Added |
| Prudential Financial Inc | 18,625 | $145.8K | 0.00% | −12,000−39.2% | Reduced |
| Corebridge Financial, Inc. | 18,577 | $145.5K | 0.00% | −1,089−5.5% | Reduced |
| Campbell & CO Investment Adviser LLC | 17,850 | $139.8K | 0.01% | −38,740−68.5% | Reduced |
| SG Americas Securities, LLC | 17,729 | $139.0K | 0.00% | +4,163+30.7% | Added |
| Wells Fargo & Company | 17,458 | $136.7K | 0.00% | +6,131+54.1% | Added |
| AQR Capital Management LLC | 17,000 | $133.1K | 0.00% | −10,247−37.6% | Reduced |
| Janus Henderson Group PLC | 16,300 | $127.5K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 14,923 | $116.8K | 0.00% | +367+2.5% | Added |
| State Board of Administration of Florida Retirement System | 14,596 | $114.3K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 14,067 | $111.0K | 0.00% | −8,470−37.6% | Reduced |
| Manufacturers Life Insurance Company, The | 13,818 | $108.2K | 0.00% | −268−1.9% | Reduced |
| Exchange Traded Concepts, LLC | 12,872 | $100.8K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 12,645 | $99.0K | 0.00% | +12,645 | New |
| Voya Investment Management LLC | 11,695 | $91.6K | 0.00% | −738−5.9% | Reduced |
| New York State Common Retirement Fund | 10,110 | $79.2K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 9,497 | $74.4K | 0.01% | +925+10.8% | Added |
| Police & Firemen's Retirement System of New Jersey | 7,327 | $57.4K | 0.00% | +7,327 | New |
| KLP Kapitalforvaltning AS | 5,900 | $46.2K | 0.00% | +5,900 | New |
| BNP Paribas Arbitrage, SA | 4,874 | $38.2K | 0.00% | −21,545−81.6% | Reduced |
| Ameritas Investment Partners, Inc. | 3,701 | $29.0K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 3,324 | $26.0K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 3,048 | $24.0K | 0.00% | 00.0% | Unchanged |
| Aquatic Capital Management LLC | 2,520 | $19.7K | 0.00% | +2,520 | New |
| Simplex Trading, LLC | 1,783 | $13.0K | 0.00% | +1,783 | New |
| Tower Research Capital LLC (TRC) | 1,642 | $12.9K | 0.00% | −3,748−69.5% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 1,493 | $11.9K | 0.00% | −119−7.4% | Reduced |
| Amalgamated Bank | 1,217 | $10.0K | 0.00% | 00.0% | Unchanged |
| GF Fund Management Co. Ltd. | 940 | $7.36K | 0.00% | +940 | New |
| Point72 Asset Management, L.P. | 550 | $4.31K | 0.00% | −94,833−99.4% | Reduced |
| Point72 (DIFC) Ltd | 488 | $3.82K | 0.00% | +488 | New |
| Bessemer Group Inc | 180 | $1.00K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 162 | $1.00K | 0.00% | 00.0% | Unchanged |