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 |
|---|---|---|---|---|---|
| Farther Finance Advisors, LLC | 1 | $13 | 0.00% | 00.0% | Unchanged |
| Capital Performance Advisors LLP | 3 | $39 | 0.00% | +3 | New |
| Allspring Global Investments Holdings, LLC | 8 | $105 | 0.00% | +8 | New |
| US Bancorp | 17 | $224 | 0.00% | +17 | New |
| Parallel Advisors, LLC | 18 | $237 | 0.00% | +18 | New |
| Rothschild Investment LLC | 25 | $329 | 0.00% | +25 | New |
| Smartleaf Asset Management LLC | 31 | $401 | 0.00% | +31 | New |
| Lindbrook Capital, LLC | 32 | $421 | 0.00% | +32 | New |
| Sterling Capital Management LLC | 38 | $500 | 0.00% | +38 | New |
| GAMMA Investing LLC | 40 | $526 | 0.00% | +35+700.0% | Added |
| Eagle Bay Advisors LLC | 50 | $658 | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 75 | $1.00K | 0.00% | +8+11.9% | Added |
| Daiwa Securities Group Inc. | 162 | $2.00K | 0.00% | 00.0% | Unchanged |
| Bessemer Group Inc | 180 | $2.00K | 0.00% | +180 | New |
| Nisa Investment Advisors, LLC | 164 | $2.16K | 0.00% | +111+209.4% | Added |
| Quest Partners LLC | 387 | $5.09K | 0.00% | +386+38,600.0% | Added |
| Amalgamated Bank | 1,217 | $16.0K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 1,612 | $20.9K | 0.00% | +302+23.1% | Added |
| Great West Life Assurance Co | 3,048 | $40.0K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 3,324 | $43.7K | 0.00% | +3,324 | New |
| Ameritas Investment Partners, Inc. | 3,701 | $48.7K | 0.00% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 4,218 | $55.0K | 0.00% | +4,218 | New |
| Tower Research Capital LLC (TRC) | 5,390 | $70.9K | 0.00% | −1,512−21.9% | Reduced |
| China Universal Asset Management Co., Ltd. | 8,572 | $112.7K | 0.01% | +3,416+66.3% | Added |
| New York State Common Retirement Fund | 10,110 | $132.9K | 0.00% | −2,500−19.8% | Reduced |
| Intech Investment Management LLC | 10,149 | $133.5K | 0.00% | +10,149 | New |
| Royal Bank of Canada | 10,350 | $136.0K | 0.00% | +6,891+199.2% | Added |
| XTX Topco Ltd | 11,300 | $148.6K | 0.01% | −13,321−54.1% | Reduced |
| Wells Fargo & Company | 11,327 | $148.9K | 0.00% | −449−3.8% | Reduced |
| Voya Investment Management LLC | 12,433 | $163.5K | 0.00% | −168−1.3% | Reduced |
| Exchange Traded Concepts, LLC | 12,872 | $169.3K | 0.00% | −1,617−11.2% | Reduced |
| SG Americas Securities, LLC | 13,566 | $178.0K | 0.00% | +13,566 | New |
| Manufacturers Life Insurance Company, The | 14,086 | $185.2K | 0.00% | −336−2.3% | Reduced |
| HRT Financial LP | 14,260 | $187.0K | 0.00% | +14,260 | New |
| Invesco Ltd. | 14,556 | $191.4K | 0.00% | +329+2.3% | Added |
| State Board of Administration of Florida Retirement System | 14,596 | $191.9K | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 15,509 | $203.9K | 0.00% | +15,509 | New |
| Empire Financial Management Company, LLC | 16,000 | $210.4K | 0.06% | +16,000 | New |
| Janus Henderson Group PLC | 16,300 | $214.2K | 0.00% | 00.0% | Unchanged |
| EntryPoint Capital, LLC | 17,071 | $224.5K | 0.13% | +10,919+177.5% | Added |
| Jane Street Group, LLC | 18,936 | $249.0K | 0.00% | −63,023−76.9% | Reduced |
| Corebridge Financial, Inc. | 19,666 | $258.6K | 0.00% | −121−0.6% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 20,273 | $266.6K | 0.00% | +2,376+13.3% | Added |
| Principal Financial Group Inc | 20,294 | $266.9K | 0.00% | +20,294 | New |
| Deutsche Bank AG | 21,194 | $278.7K | 0.00% | −1,342−6.0% | Reduced |
| MetLife Investment Management | 22,141 | $291.2K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 22,537 | $297.0K | 0.00% | +258+1.2% | Added |
| BNP Paribas Arbitrage, SA | 26,419 | $347.4K | 0.00% | −537−2.0% | Reduced |
| AQR Capital Management LLC | 27,247 | $358.3K | 0.00% | +5,321+24.3% | Added |
| Virtus ETF Advisers LLC | 27,332 | $359.4K | 0.17% | 00.0% | Unchanged |
| Citigroup Inc | 27,359 | $359.8K | 0.00% | +18,390+205.0% | Added |
| Renaissance Technologies LLC | 27,900 | $366.9K | 0.00% | −36,737−56.8% | Reduced |
| California State Teachers Retirement System | 29,481 | $387.7K | 0.00% | −968−3.2% | Reduced |
| JPMorgan Chase & Co | 30,335 | $398.9K | 0.00% | +2,854+10.4% | Added |
| Prudential Financial Inc | 30,625 | $402.7K | 0.00% | −32,100−51.2% | Reduced |
| Legal & General Group Plc | 33,804 | $444.5K | 0.00% | +1,114+3.4% | Added |
| Alps Advisors Inc | 34,231 | $450.1K | 0.00% | +70.0% | Added |
| Rafferty Asset Management, LLC | 35,077 | $461.3K | 0.00% | +35,077 | New |
| FMR LLC | 36,416 | $478.9K | 0.00% | +6,822+23.1% | Added |
| STRS Ohio | 43,400 | $570.7K | 0.00% | 00.0% | Unchanged |
| Sapient Capital LLC | 43,700 | $574.7K | 0.01% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 44,474 | $584.8K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 44,586 | $586.3K | 0.00% | +25,582+134.6% | Added |
| UBS Asset Management Americas Inc | 44,591 | $586.4K | 0.00% | −13,708−23.5% | Reduced |
| Rhumbline Advisers | 52,315 | $687.9K | 0.00% | −2,053−3.8% | Reduced |
| Alliancebernstein L.P. | 54,780 | $720.4K | 0.00% | −3,360−5.8% | Reduced |
| State of Wisconsin Investment Board | 55,668 | $732.0K | 0.00% | +14,461+35.1% | Added |
| Campbell & CO Investment Adviser LLC | 56,590 | $744.2K | 0.06% | −5,456−8.8% | Reduced |
| Swiss National Bank | 60,300 | $792.9K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 67,141 | $882.9K | 0.00% | +5,825+9.5% | Added |
| Barclays PLC | 69,222 | $910.3K | 0.00% | +56,244+433.4% | Added |
| Millennium Management LLC | 71,586 | $941.4K | 0.00% | −278,198−79.5% | Reduced |
| Franklin Resources Inc | 67,289 | $978.4K | 0.00% | +312+0.5% | Added |
| Bridgeway Capital Management, LLC | 76,000 | $999.4K | 0.02% | 00.0% | Unchanged |
| Bank of America Corp | 79,720 | $1.05M | 0.00% | +35,037+78.4% | Added |
| Two Sigma Advisers, LP | 85,000 | $1.12M | 0.00% | −12,700−13.0% | Reduced |
| Bank of New York Mellon Corp | 91,555 | $1.20M | 0.00% | −29,399−24.3% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 94,225 | $1.24M | 0.01% | −81,830−46.5% | Reduced |
| Point72 Asset Management, L.P. | 95,383 | $1.25M | 0.00% | −263,562−73.4% | Reduced |
| Acadian Asset Management LLC | 105,777 | $1.39M | 0.00% | −217,398−67.3% | Reduced |
| Rice Hall James & Associates, LLC | 108,684 | $1.43M | 0.08% | +18,949+21.1% | Added |
| Nuveen Asset Management, LLC | 112,483 | $1.48M | 0.00% | 00.0% | Unchanged |
| Wellington Management Group LLP | 136,714 | $1.80M | 0.00% | −23,730−14.8% | Reduced |
| Jacobs Levy Equity Management, Inc | 149,681 | $1.97M | 0.01% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 154,931 | $2.04M | 0.01% | +28,542+22.6% | Added |
| Goldman Sachs Group Inc | 222,600 | $2.93M | 0.00% | +83,861+60.4% | Added |
| Morgan Stanley | 248,722 | $3.27M | 0.00% | +45,582+22.4% | Added |
| Citadel Advisors LLC | 274,547 | $3.61M | 0.00% | +12,803+4.9% | Added |
| Charles Schwab Investment Management Inc | 279,577 | $3.68M | 0.00% | +23,982+9.4% | Added |
| Northern Trust Corp | 337,287 | $4.44M | 0.00% | +19,482+6.1% | Added |
| Soleus Capital Management, L.P. | 399,982 | $5.26M | 0.44% | −248,000−38.3% | Reduced |
| Dimensional Fund Advisors LP | 477,664 | $6.28M | 0.00% | −6,767−1.4% | Reduced |
| Boothbay Fund Management, LLC | 557,429 | $7.33M | 0.23% | +188,069+50.9% | Added |
| Pictet Asset Management Holding SA | 687,980 | $9.05M | 0.01% | +28,308+4.3% | Added |
| D. E. Shaw & Co., Inc. | 787,536 | $10.4M | 0.01% | −138,921−15.0% | Reduced |
| Logos Global Management LP | 800,000 | $10.5M | 1.18% | +800,000 | New |
| Geode Capital Management, LLC | 813,489 | $10.7M | 0.00% | +47,846+6.2% | Added |
| Caligan Partners LP | 1,195,253 | $15.7M | 4.98% | +613,175+105.3% | Added |
| State Street Corp | 1,209,781 | $15.9M | 0.00% | +405,169+50.4% | Added |
| Cormorant Asset Management, LP | 1,450,000 | $19.1M | 1.01% | 00.0% | Unchanged |