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