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, Q3 2024
Institutional positions in Y-mAbs Therapeutics, Inc. as of Sep 30, 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
- 105
- +10 vs. Q2 2024
- Shares held
- 25.7M
- +4.33M (+20.2%) vs. Q2 2024
- Total value
- $338.5M
- +$79.9M (+30.9%) vs. Q2 2024
- New holders
- 20
- 37 more added
- Sold out
- 10
- 28 more reduced
1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2024
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Paradigm Biocapital Advisors LP | 4,086,346 | $53.7M | 1.88% | +215,752+5.6% | Added |
| BlackRock, Inc. | 3,025,235 | $39.8M | 0.00% | +3,025,235 | New |
| Sofinnova Investments, Inc. | 2,194,278 | $28.9M | 2.39% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,035,363 | $26.8M | 0.00% | +78,024+4.0% | Added |
| Polar Capital Holdings Plc | 1,831,000 | $24.1M | 0.14% | 00.0% | Unchanged |
| Cormorant Asset Management, LP | 1,450,000 | $19.1M | 1.01% | 00.0% | Unchanged |
| State Street Corp | 1,209,781 | $15.9M | 0.00% | +405,169+50.4% | Added |
| Caligan Partners LP | 1,195,253 | $15.7M | 4.98% | +613,175+105.3% | Added |
| Geode Capital Management, LLC | 813,489 | $10.7M | 0.00% | +47,846+6.2% | Added |
| Logos Global Management LP | 800,000 | $10.5M | 1.18% | +800,000 | New |
| D. E. Shaw & Co., Inc. | 787,536 | $10.4M | 0.01% | −138,921−15.0% | Reduced |
| Pictet Asset Management Holding SA | 687,980 | $9.05M | 0.01% | +28,308+4.3% | Added |
| Boothbay Fund Management, LLC | 557,429 | $7.33M | 0.23% | +188,069+50.9% | Added |
| Dimensional Fund Advisors LP | 477,664 | $6.28M | 0.00% | −6,767−1.4% | Reduced |
| Soleus Capital Management, L.P. | 399,982 | $5.26M | 0.44% | −248,000−38.3% | Reduced |
| Northern Trust Corp | 337,287 | $4.44M | 0.00% | +19,482+6.1% | Added |
| Charles Schwab Investment Management Inc | 279,577 | $3.68M | 0.00% | +23,982+9.4% | Added |
| Citadel Advisors LLC | 274,547 | $3.61M | 0.00% | +12,803+4.9% | Added |
| Morgan Stanley | 248,722 | $3.27M | 0.00% | +45,582+22.4% | Added |
| Goldman Sachs Group Inc | 222,600 | $2.93M | 0.00% | +83,861+60.4% | Added |
| Squarepoint Ops LLC | 154,931 | $2.04M | 0.01% | +28,542+22.6% | Added |
| Jacobs Levy Equity Management, Inc | 149,681 | $1.97M | 0.01% | 00.0% | Unchanged |
| Wellington Management Group LLP | 136,714 | $1.80M | 0.00% | −23,730−14.8% | Reduced |
| Nuveen Asset Management, LLC | 112,483 | $1.48M | 0.00% | 00.0% | Unchanged |
| Rice Hall James & Associates, LLC | 108,684 | $1.43M | 0.08% | +18,949+21.1% | Added |
| Acadian Asset Management LLC | 105,777 | $1.39M | 0.00% | −217,398−67.3% | Reduced |
| Point72 Asset Management, L.P. | 95,383 | $1.25M | 0.00% | −263,562−73.4% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 94,225 | $1.24M | 0.01% | −81,830−46.5% | Reduced |
| Bank of New York Mellon Corp | 91,555 | $1.20M | 0.00% | −29,399−24.3% | Reduced |
| Two Sigma Advisers, LP | 85,000 | $1.12M | 0.00% | −12,700−13.0% | Reduced |
| Bank of America Corp | 79,720 | $1.05M | 0.00% | +35,037+78.4% | Added |
| Bridgeway Capital Management, LLC | 76,000 | $999.4K | 0.02% | 00.0% | Unchanged |
| Franklin Resources Inc | 67,289 | $978.4K | 0.00% | +312+0.5% | Added |
| Millennium Management LLC | 71,586 | $941.4K | 0.00% | −278,198−79.5% | Reduced |
| Barclays PLC | 69,222 | $910.3K | 0.00% | +56,244+433.4% | Added |
| Two Sigma Investments, LP | 67,141 | $882.9K | 0.00% | +5,825+9.5% | Added |
| Swiss National Bank | 60,300 | $792.9K | 0.00% | 00.0% | Unchanged |
| Campbell & CO Investment Adviser LLC | 56,590 | $744.2K | 0.06% | −5,456−8.8% | Reduced |
| State of Wisconsin Investment Board | 55,668 | $732.0K | 0.00% | +14,461+35.1% | Added |
| Alliancebernstein L.P. | 54,780 | $720.4K | 0.00% | −3,360−5.8% | Reduced |
| Rhumbline Advisers | 52,315 | $687.9K | 0.00% | −2,053−3.8% | Reduced |
| UBS Asset Management Americas Inc | 44,591 | $586.4K | 0.00% | −13,708−23.5% | Reduced |
| UBS Group AG | 44,586 | $586.3K | 0.00% | +25,582+134.6% | Added |
| Federated Hermes, Inc. | 44,474 | $584.8K | 0.00% | 00.0% | Unchanged |
| Sapient Capital LLC | 43,700 | $574.7K | 0.01% | 00.0% | Unchanged |
| STRS Ohio | 43,400 | $570.7K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 36,416 | $478.9K | 0.00% | +6,822+23.1% | Added |
| Rafferty Asset Management, LLC | 35,077 | $461.3K | 0.00% | +35,077 | New |
| Alps Advisors Inc | 34,231 | $450.1K | 0.00% | +70.0% | Added |
| Legal & General Group Plc | 33,804 | $444.5K | 0.00% | +1,114+3.4% | Added |
| Prudential Financial Inc | 30,625 | $402.7K | 0.00% | −32,100−51.2% | Reduced |
| JPMorgan Chase & Co | 30,335 | $398.9K | 0.00% | +2,854+10.4% | Added |
| California State Teachers Retirement System | 29,481 | $387.7K | 0.00% | −968−3.2% | Reduced |
| Renaissance Technologies LLC | 27,900 | $366.9K | 0.00% | −36,737−56.8% | Reduced |
| Citigroup Inc | 27,359 | $359.8K | 0.00% | +18,390+205.0% | Added |
| Virtus ETF Advisers LLC | 27,332 | $359.4K | 0.17% | 00.0% | Unchanged |
| AQR Capital Management LLC | 27,247 | $358.3K | 0.00% | +5,321+24.3% | Added |
| BNP Paribas Arbitrage, SA | 26,419 | $347.4K | 0.00% | −537−2.0% | Reduced |
| Price T Rowe Associates Inc | 22,537 | $297.0K | 0.00% | +258+1.2% | Added |
| MetLife Investment Management | 22,141 | $291.2K | 0.00% | 00.0% | Unchanged |
| Deutsche Bank AG | 21,194 | $278.7K | 0.00% | −1,342−6.0% | Reduced |
| Principal Financial Group Inc | 20,294 | $266.9K | 0.00% | +20,294 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 20,273 | $266.6K | 0.00% | +2,376+13.3% | Added |
| Corebridge Financial, Inc. | 19,666 | $258.6K | 0.00% | −121−0.6% | Reduced |
| Jane Street Group, LLC | 18,936 | $249.0K | 0.00% | −63,023−76.9% | Reduced |
| EntryPoint Capital, LLC | 17,071 | $224.5K | 0.13% | +10,919+177.5% | Added |
| Janus Henderson Group PLC | 16,300 | $214.2K | 0.00% | 00.0% | Unchanged |
| Empire Financial Management Company, LLC | 16,000 | $210.4K | 0.06% | +16,000 | New |
| Marshall Wace, LLP | 15,509 | $203.9K | 0.00% | +15,509 | New |
| State Board of Administration of Florida Retirement System | 14,596 | $191.9K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 14,556 | $191.4K | 0.00% | +329+2.3% | Added |
| HRT Financial LP | 14,260 | $187.0K | 0.00% | +14,260 | New |
| Manufacturers Life Insurance Company, The | 14,086 | $185.2K | 0.00% | −336−2.3% | Reduced |
| SG Americas Securities, LLC | 13,566 | $178.0K | 0.00% | +13,566 | New |
| Exchange Traded Concepts, LLC | 12,872 | $169.3K | 0.00% | −1,617−11.2% | Reduced |
| Voya Investment Management LLC | 12,433 | $163.5K | 0.00% | −168−1.3% | Reduced |
| Wells Fargo & Company | 11,327 | $148.9K | 0.00% | −449−3.8% | Reduced |
| XTX Topco Ltd | 11,300 | $148.6K | 0.01% | −13,321−54.1% | Reduced |
| Royal Bank of Canada | 10,350 | $136.0K | 0.00% | +6,891+199.2% | Added |
| Intech Investment Management LLC | 10,149 | $133.5K | 0.00% | +10,149 | New |
| New York State Common Retirement Fund | 10,110 | $132.9K | 0.00% | −2,500−19.8% | Reduced |
| China Universal Asset Management Co., Ltd. | 8,572 | $112.7K | 0.01% | +3,416+66.3% | Added |
| Tower Research Capital LLC (TRC) | 5,390 | $70.9K | 0.00% | −1,512−21.9% | Reduced |
| Lazard Asset Management LLC | 4,218 | $55.0K | 0.00% | +4,218 | New |
| Ameritas Investment Partners, Inc. | 3,701 | $48.7K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 3,324 | $43.7K | 0.00% | +3,324 | New |
| Great West Life Assurance Co | 3,048 | $40.0K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 1,612 | $20.9K | 0.00% | +302+23.1% | Added |
| Amalgamated Bank | 1,217 | $16.0K | 0.00% | 00.0% | Unchanged |
| Quest Partners LLC | 387 | $5.09K | 0.00% | +386+38,600.0% | Added |
| Nisa Investment Advisors, LLC | 164 | $2.16K | 0.00% | +111+209.4% | Added |
| Daiwa Securities Group Inc. | 162 | $2.00K | 0.00% | 00.0% | Unchanged |
| Bessemer Group Inc | 180 | $2.00K | 0.00% | +180 | New |
| CWM, LLC | 75 | $1.00K | 0.00% | +8+11.9% | Added |
| Eagle Bay Advisors LLC | 50 | $658 | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 40 | $526 | 0.00% | +35+700.0% | Added |
| Sterling Capital Management LLC | 38 | $500 | 0.00% | +38 | New |
| Lindbrook Capital, LLC | 32 | $421 | 0.00% | +32 | New |
| Smartleaf Asset Management LLC | 31 | $401 | 0.00% | +31 | New |
| Rothschild Investment LLC | 25 | $329 | 0.00% | +25 | New |