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 2022
Institutional positions in Y-mAbs Therapeutics, Inc. as of Dec 31, 2022. 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
- 91
- −9 vs. Q3 2022
- Shares held
- 19.3M
- −4.25M (−18.1%) vs. Q3 2022
- Total value
- $94.2M
- −$245.5M (−72.3%) vs. Q3 2022
- New holders
- 20
- 25 more added
- Sold out
- 29
- 33 more reduced
Compare with Q3 2022: 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 2022
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 2,578,776 | $12.6M | 0.00% | −318,618−11.0% | Reduced |
| Vanguard Group Inc | 2,258,254 | $11.0M | 0.00% | +337,833+17.6% | Added |
| Sofinnova Investments, Inc. | 2,194,278 | $10.7M | 0.65% | 00.0% | Unchanged |
| Polar Capital Holdings Plc | 1,991,929 | $9.72M | 0.08% | −539,617−21.3% | Reduced |
| Millennium Management LLC | 1,128,702 | $5.51M | 0.01% | +1,105,069+4,676.0% | Added |
| Citadel Advisors LLC | 960,421 | $4.69M | 0.01% | +869,961+961.7% | Added |
| State Street Corp | 832,151 | $4.06M | 0.00% | −1,086,988−56.6% | Reduced |
| Geode Capital Management, LLC | 631,294 | $3.08M | 0.00% | −1,601−0.3% | Reduced |
| AQR Capital Management LLC | 480,170 | $2.34M | 0.01% | +480,170 | New |
| D. E. Shaw & Co., Inc. | 468,664 | $2.29M | 0.00% | +353,174+305.8% | Added |
| Point72 Asset Management, L.P. | 449,430 | $2.19M | 0.01% | +449,430 | New |
| Artal Group S.A. | 400,000 | $1.95M | 0.11% | 00.0% | Unchanged |
| Northern Trust Corp | 320,411 | $1.56M | 0.00% | −8,612−2.6% | Reduced |
| Goldman Sachs Group Inc | 316,852 | $1.55M | 0.00% | +133,775+73.1% | Added |
| Morgan Stanley | 293,963 | $1.43M | 0.00% | +38,471+15.1% | Added |
| Charles Schwab Investment Management Inc | 251,559 | $1.23M | 0.00% | +3,144+1.3% | Added |
| Two Sigma Investments, LP | 209,466 | $1.02M | 0.00% | +209,466 | New |
| Acadian Asset Management LLC | 198,560 | $968.0K | 0.00% | +198,560 | New |
| Ergoteles LLC | 191,869 | $936.3K | 0.03% | +191,869 | New |
| Memorial Sloan Kettering Cancer Center | 191,176 | $932.9K | 3.08% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 170,920 | $834.1K | 0.00% | +127,068+289.8% | Added |
| Alliancebernstein L.P. | 155,639 | $759.5K | 0.00% | −1,994,425−92.8% | Reduced |
| Cormorant Asset Management, LP | 150,000 | $732.0K | 0.05% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 127,558 | $622.5K | 0.00% | +50,741+66.1% | Added |
| Federated Hermes, Inc. | 127,535 | $622.4K | 0.00% | +127,535 | New |
| Dimensional Fund Advisors LP | 121,136 | $592.0K | 0.00% | −11,475−8.7% | Reduced |
| Bank of New York Mellon Corp | 113,340 | $553.1K | 0.00% | −150.0% | Reduced |
| STRS Ohio | 109,900 | $536.0K | 0.00% | +80,800+277.7% | Added |
| Nuveen Asset Management, LLC | 104,063 | $508.0K | 0.00% | +99+0.1% | Added |
| Gsa Capital Partners LLP | 99,160 | $484.0K | 0.06% | +99,160 | New |
| Ashford Capital Management Inc | 98,870 | $482.5K | 0.07% | −3,100−3.0% | Reduced |
| Squarepoint Ops LLC | 91,143 | $444.8K | 0.00% | +91,143 | New |
| Soleus Capital Management, L.P. | 87,182 | $425.4K | 0.06% | 00.0% | Unchanged |
| Rice Hall James & Associates, LLC | 87,090 | $425.0K | 0.02% | −3,575−3.9% | Reduced |
| Swiss National Bank | 77,100 | $376.2K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 66,651 | $325.3K | 0.00% | +54,276+438.6% | Added |
| Ameriprise Financial Inc | 66,392 | $325.0K | 0.00% | −1,106−1.6% | Reduced |
| HRT Financial LP | 66,265 | $323.0K | 0.00% | +66,265 | New |
| Two Sigma Advisers, LP | 66,100 | $322.6K | 0.00% | +66,100 | New |
| Renaissance Technologies LLC | 53,500 | $261.0K | 0.00% | −74,400−58.2% | Reduced |
| Rhumbline Advisers | 48,749 | $238.0K | 0.00% | +1,944+4.2% | Added |
| Cornercap Investment Counsel Inc | 48,233 | $235.4K | 0.04% | +48,233 | New |
| California State Teachers Retirement System | 43,130 | $210.5K | 0.00% | +426+1.0% | Added |
| Susquehanna Fundamental Investments, LLC | 42,678 | $208.3K | 0.00% | +42,678 | New |
| Cubist Systematic Strategies, LLC | 39,159 | $191.1K | 0.00% | +29,159+291.6% | Added |
| Walleye Capital LLC | 38,600 | $188.4K | 0.00% | −398,744−91.2% | Reduced |
| XTX Topco Ltd | 38,574 | $188.2K | 0.04% | +38,574 | New |
| Voya Investment Management LLC | 37,645 | $183.7K | 0.00% | +9,193+32.3% | Added |
| Susquehanna International Group, LLP | 34,634 | $169.0K | 0.00% | −4,034−10.4% | Reduced |
| BNP Paribas Arbitrage, SA | 34,396 | $167.9K | 0.00% | −4,615−11.8% | Reduced |
| JPMorgan Chase & Co | 32,683 | $160.0K | 0.00% | −1,296−3.8% | Reduced |
| Man Group plc | 28,343 | $138.3K | 0.00% | +18,043+175.2% | Added |
| Landscape Capital Management, L.L.C. | 26,690 | $130.2K | 0.02% | +26,690 | New |
| Qube Research & Technologies Ltd | 25,966 | $126.7K | 0.00% | −2,285−8.1% | Reduced |
| Algert Global LLC | 25,820 | $126.0K | 0.01% | +8,338+47.7% | Added |
| New York State Common Retirement Fund | 24,625 | $120.2K | 0.00% | +100.0% | Added |
| Alpine Global Management, LLC | 23,866 | $116.0K | 0.04% | +23,866 | New |
| Credit Suisse AG | 23,704 | $115.7K | 0.00% | −1,273−5.1% | Reduced |
| Prudential Financial Inc | 23,150 | $113.0K | 0.00% | +23,150 | New |
| Bank of America Corp | 23,123 | $112.8K | 0.00% | −80,463−77.7% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 17,930 | $87.5K | 0.00% | +2,008+12.6% | Added |
| Price T Rowe Associates Inc | 17,623 | $86.0K | 0.00% | +915+5.5% | Added |
| Deutsche Bank AG | 17,432 | $85.1K | 0.00% | +246+1.4% | Added |
| American International Group, Inc. | 17,366 | $84.7K | 0.00% | −64−0.4% | Reduced |
| Mariner, LLC | 16,755 | $82.0K | 0.00% | +16,755 | New |
| Manufacturers Life Insurance Company, The | 16,114 | $78.6K | 0.00% | +1,371+9.3% | Added |
| UBS Asset Management Americas Inc | 15,600 | $76.1K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 15,475 | $75.5K | 0.00% | 00.0% | Unchanged |
| Cim Investment Mangement Inc | 14,787 | $72.2K | 0.03% | +14,787 | New |
| Invesco Ltd. | 14,349 | $70.0K | 0.00% | −2,454−14.6% | Reduced |
| State Board of Administration of Florida Retirement System | 14,306 | $69.8K | 0.00% | −790−5.2% | Reduced |
| MetLife Investment Management | 13,191 | $64.4K | 0.00% | −7,492−36.2% | Reduced |
| Principal Financial Group Inc | 11,661 | $56.9K | 0.00% | +1,270+12.2% | Added |
| SG Americas Securities, LLC | 10,059 | $49.0K | 0.00% | −6,483−39.2% | Reduced |
| Barclays PLC | 9,859 | $48.1K | 0.00% | −54,586−84.7% | Reduced |
| Royal Bank of Canada | 8,660 | $42.0K | 0.00% | +2,844+48.9% | Added |
| Amalgamated Bank | 5,819 | $28.0K | 0.00% | 00.0% | Unchanged |
| Point72 Middle East FZE | 2,999 | $14.6K | 0.00% | +2,999 | New |
| Ameritas Investment Partners, Inc. | 2,645 | $11.7K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 2,293 | $11.2K | 0.00% | −12−0.5% | Reduced |
| Allspring Global Investments Holdings, LLC | 1,699 | $8.29K | 0.00% | −38−2.2% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,694 | $8.27K | 0.00% | −4,819−74.0% | Reduced |
| Great West Life Assurance Co | 1,443 | $7.00K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 1,202 | $5.87K | 0.00% | −1,377,264−99.9% | Reduced |
| Citigroup Inc | 1,063 | $5.19K | 0.00% | −93,217−98.9% | Reduced |
| Russell Investments Group, Ltd. | 816 | $3.98K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 576 | $3.00K | 0.00% | −1,008−63.6% | Reduced |
| HighMark Wealth Management LLC | 220 | $1.07K | 0.00% | −500−69.4% | Reduced |
| Eagle Bay Advisors LLC | 50 | $244 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 62 | $0 | 0.00% | −1,677−96.4% | Reduced |
| IFP Advisors, Inc | 103 | – | – | +103 | New |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −1,948,469−100.0% | Sold out |
| MPM Oncology Impact Management LP | 0 | $0 | 0.00% | −443,702−100.0% | Sold out |
| Driehaus Capital Management LLC | 0 | $0 | 0.00% | −297,252−100.0% | Sold out |
| Perceptive Advisors LLC | 0 | $0 | 0.00% | −212,018−100.0% | Sold out |
| Candriam Luxembourg S.C.A. | 0 | $0 | 0.00% | −172,584−100.0% | Sold out |
| Lombard Odier Asset Management (Switzerland) SA | 0 | $0 | 0.00% | −168,795−100.0% | Sold out |
| Rafferty Asset Management, LLC | 0 | $0 | 0.00% | −101,824−100.0% | Sold out |
| UBS Oconnor LLC | 0 | $0 | 0.00% | −44,000−100.0% | Sold out |
| Ensign Peak Advisors, Inc | 0 | $0 | 0.00% | −42,152−100.0% | Sold out |