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, Q1 2023
Institutional positions in Y-mAbs Therapeutics, Inc. as of Mar 31, 2023. 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
- 86
- −5 vs. Q4 2022
- Shares held
- 19.0M
- −318.8K (−1.7%) vs. Q4 2022
- Total value
- $95.4M
- +$1.22M (+1.3%) vs. Q4 2022
- New holders
- 13
- 32 more added
- Sold out
- 18
- 27 more reduced
Compare with Q4 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, Q1 2023
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 2,361,093 | $11.8M | 0.00% | −217,683−8.4% | Reduced |
| Vanguard Group Inc | 2,281,002 | $11.4M | 0.00% | +22,748+1.0% | Added |
| Sofinnova Investments, Inc. | 2,194,278 | $11.0M | 0.75% | 00.0% | Unchanged |
| Polar Capital Holdings Plc | 1,991,929 | $9.98M | 0.07% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 790,956 | $3.96M | 0.01% | +322,292+68.8% | Added |
| State Street Corp | 762,830 | $3.82M | 0.00% | −69,321−8.3% | Reduced |
| Geode Capital Management, LLC | 662,645 | $3.32M | 0.00% | +31,351+5.0% | Added |
| Millennium Management LLC | 623,091 | $3.12M | 0.00% | −505,611−44.8% | Reduced |
| AQR Capital Management LLC | 479,293 | $2.40M | 0.01% | −877−0.2% | Reduced |
| AIGH Capital Management LLC | 428,412 | $2.15M | 0.79% | +428,412 | New |
| Acadian Asset Management LLC | 399,582 | $2.00M | 0.01% | +201,022+101.2% | Added |
| Point72 Asset Management, L.P. | 357,218 | $1.79M | 0.01% | −92,212−20.5% | Reduced |
| Nuveen Asset Management, LLC | 333,392 | $1.67M | 0.00% | +229,329+220.4% | Added |
| Jacobs Levy Equity Management, Inc | 323,897 | $1.62M | 0.01% | +323,897 | New |
| Citadel Advisors LLC | 305,710 | $1.53M | 0.00% | −654,711−68.2% | Reduced |
| Northern Trust Corp | 302,329 | $1.51M | 0.00% | −18,082−5.6% | Reduced |
| Morgan Stanley | 250,449 | $1.25M | 0.00% | −43,514−14.8% | Reduced |
| Charles Schwab Investment Management Inc | 235,640 | $1.18M | 0.00% | −15,919−6.3% | Reduced |
| Two Sigma Advisers, LP | 209,200 | $1.05M | 0.00% | +143,100+216.5% | Added |
| JPMorgan Chase & Co | 195,435 | $979.0K | 0.00% | +162,752+498.0% | Added |
| Memorial Sloan Kettering Cancer Center | 191,176 | $957.8K | 2.94% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 190,791 | $955.9K | 0.00% | −126,061−39.8% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 174,114 | $872.3K | 0.00% | +3,194+1.9% | Added |
| XTX Topco Ltd | 163,277 | $818.0K | 0.17% | +124,703+323.3% | Added |
| Gsa Capital Partners LLP | 161,509 | $809.0K | 0.08% | +62,349+62.9% | Added |
| Alliancebernstein L.P. | 155,639 | $779.8K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 155,627 | $779.7K | 0.00% | −53,839−25.7% | Reduced |
| State of Wisconsin Investment Board | 150,800 | $755.5K | 0.00% | +23,242+18.2% | Added |
| STRS Ohio | 148,800 | $745.0K | 0.00% | +38,900+35.4% | Added |
| New York Life Investment Management LLC | 145,808 | $730.5K | 0.01% | +145,808 | New |
| Bank of New York Mellon Corp | 112,531 | $563.8K | 0.00% | −809−0.7% | Reduced |
| Dimensional Fund Advisors LP | 109,432 | $548.3K | 0.00% | −11,704−9.7% | Reduced |
| Worth Venture Partners, LLC | 104,487 | $523.5K | 0.26% | +104,487 | New |
| Rice Hall James & Associates, LLC | 89,480 | $448.3K | 0.03% | +2,390+2.7% | Added |
| Renaissance Technologies LLC | 87,400 | $438.0K | 0.00% | +33,900+63.4% | Added |
| Soleus Capital Management, L.P. | 87,182 | $436.8K | 0.05% | 00.0% | Unchanged |
| Bank of America Corp | 85,455 | $428.1K | 0.00% | +62,332+269.6% | Added |
| UBS Group AG | 76,263 | $382.1K | 0.00% | +76,263 | New |
| Bridgeway Capital Management, LLC | 75,000 | $375.8K | 0.01% | +75,000 | New |
| Prudential Financial Inc | 74,050 | $371.0K | 0.00% | +50,900+219.9% | Added |
| Federated Hermes, Inc. | 63,956 | $320.4K | 0.00% | −63,579−49.9% | Reduced |
| Man Group plc | – | $306.9K | 0.00% | – | – |
| Cubist Systematic Strategies, LLC | 57,025 | $285.7K | 0.00% | +17,866+45.6% | Added |
| Susquehanna International Group, LLP | 48,833 | $244.7K | 0.00% | +14,199+41.0% | Added |
| Rhumbline Advisers | 48,634 | $244.0K | 0.00% | −115−0.2% | Reduced |
| Cornercap Investment Counsel Inc | 48,233 | $241.6K | 0.04% | 00.0% | Unchanged |
| Barclays PLC | 47,409 | $237.5K | 0.00% | +37,550+380.9% | Added |
| Citigroup Inc | 46,842 | $234.7K | 0.00% | +45,779+4,306.6% | Added |
| Voya Investment Management LLC | 45,239 | $226.6K | 0.00% | +7,594+20.2% | Added |
| Caxton Associates LP | 43,046 | $215.7K | 0.03% | +43,046 | New |
| Susquehanna Fundamental Investments, LLC | 40,960 | $205.2K | 0.00% | −1,718−4.0% | Reduced |
| Jump Financial, LLC | 40,900 | $204.9K | 0.01% | +40,900 | New |
| BNP Paribas Arbitrage, SA | 35,504 | $177.9K | 0.00% | +1,108+3.2% | Added |
| Walleye Capital LLC | 27,393 | $137.2K | 0.00% | −11,207−29.0% | Reduced |
| Algert Global LLC | 25,820 | $129.4K | 0.01% | 00.0% | Unchanged |
| Dynamic Technology Lab Private Ltd | 25,478 | $128.0K | 0.01% | +25,478 | New |
| Virtu Financial LLC | 25,147 | $126.0K | 0.01% | +25,147 | New |
| Price T Rowe Associates Inc | 24,723 | $124.0K | 0.00% | +7,100+40.3% | Added |
| Jane Street Group, LLC | 24,265 | $121.6K | 0.00% | −42,386−63.6% | Reduced |
| Deutsche Bank AG | 23,623 | $118.4K | 0.00% | +6,191+35.5% | Added |
| SG Americas Securities, LLC | 21,735 | $109.0K | 0.00% | +11,676+116.1% | Added |
| MetLife Investment Management | 20,086 | $100.6K | 0.00% | +6,895+52.3% | Added |
| American International Group, Inc. | 17,720 | $88.8K | 0.00% | +354+2.0% | Added |
| Manufacturers Life Insurance Company, The | 16,114 | $80.7K | 0.00% | 00.0% | Unchanged |
| Cim Investment Mangement Inc | 15,313 | $76.7K | 0.03% | +526+3.6% | Added |
| Allspring Global Investments Holdings, LLC | 14,548 | $72.9K | 0.00% | +12,849+756.3% | Added |
| State Board of Administration of Florida Retirement System | 14,306 | $71.7K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 13,650 | $68.4K | 0.00% | −29,480−68.4% | Reduced |
| Invesco Ltd. | 13,530 | $67.8K | 0.00% | −819−5.7% | Reduced |
| Russell Investments Group, Ltd. | 11,812 | $59.2K | 0.00% | +10,996+1,347.5% | Added |
| Principal Financial Group Inc | 10,952 | $54.9K | 0.00% | −709−6.1% | Reduced |
| Denali Advisors LLC | 8,300 | $41.6K | 0.02% | +8,300 | New |
| Wells Fargo & Company | 7,069 | $35.4K | 0.00% | +7,069 | New |
| New York State Common Retirement Fund | 6,225 | $31.2K | 0.00% | −18,400−74.7% | Reduced |
| Tower Research Capital LLC (TRC) | 5,899 | $30.0K | 0.00% | +5,323+924.1% | Added |
| Amalgamated Bank | 5,049 | $25.0K | 0.00% | −770−13.2% | Reduced |
| Legal & General Group Plc | 4,430 | $22.2K | 0.00% | −11,045−71.4% | Reduced |
| Ameritas Investment Partners, Inc. | 2,645 | $13.3K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 2,055 | $10.3K | 0.00% | −238−10.4% | Reduced |
| Royal Bank of Canada | 2,079 | $10.0K | 0.00% | −6,581−76.0% | Reduced |
| FMR LLC | 1,310 | $6.56K | 0.00% | +108+9.0% | Added |
| Psagot Value Holdings Ltd. / (Israel) | 800 | $3.00K | 0.00% | +800 | New |
| HighMark Wealth Management LLC | 220 | $1.10K | 0.00% | 00.0% | Unchanged |
| Eagle Bay Advisors LLC | 50 | $251 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 40 | $0 | 0.00% | −22−35.5% | Reduced |
| IFP Advisors, Inc | 103 | – | – | 00.0% | Unchanged |
| Artal Group S.A. | 0 | $0 | 0.00% | −400,000−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −191,869−100.0% | Sold out |
| Cormorant Asset Management, LP | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| Ashford Capital Management Inc | 0 | $0 | 0.00% | −98,870−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −91,143−100.0% | Sold out |
| Swiss National Bank | 0 | $0 | 0.00% | −77,100−100.0% | Sold out |
| Ameriprise Financial Inc | 0 | $0 | 0.00% | −66,392−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −66,265−100.0% | Sold out |
| Landscape Capital Management, L.L.C. | 0 | $0 | 0.00% | −26,690−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −25,966−100.0% | Sold out |
| Alpine Global Management, LLC | 0 | $0 | 0.00% | −23,866−100.0% | Sold out |
| Credit Suisse AG | 0 | $0 | 0.00% | −23,704−100.0% | Sold out |
| Mirae Asset Global Investments Co., Ltd. | 0 | $0 | 0.00% | −17,930−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −16,755−100.0% | Sold out |