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 2025
Institutional positions in Y-mAbs Therapeutics, Inc. as of Mar 31, 2025. 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
- 103
- −9 vs. Q4 2024
- Shares held
- 28.8M
- +120.5K (+0.4%) vs. Q4 2024
- Total value
- $127.6M
- −$97.0M (−43.2%) vs. Q4 2024
- New holders
- 17
- 40 more added
- Sold out
- 26
- 28 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2025
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| IFP Advisors, Inc | 0 | $53 | 0.00% | 0 | Unchanged |
| SBI Securities Co., Ltd. | 16 | $71 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 17 | $76 | 0.00% | +17 | New |
| Sterling Capital Management LLC | 38 | $168 | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 44 | $195 | 0.00% | +44 | New |
| CoreCap Advisors, LLC | 46 | $204 | 0.00% | +46 | New |
| South State Corp. | 68 | $302 | 0.00% | +68 | New |
| Rothschild Investment LLC | 110 | $487 | 0.00% | +70+175.0% | Added |
| Simplex Trading, LLC | 437 | $1.00K | 0.00% | −1,346−75.5% | Reduced |
| Daiwa Securities Group Inc. | 162 | $1.00K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 259 | $1.15K | 0.00% | +205+379.6% | Added |
| GF Fund Management Co. Ltd. | 1,111 | $4.92K | 0.00% | +171+18.2% | Added |
| Amalgamated Bank | 1,217 | $5.00K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 1,710 | $7.00K | 0.00% | −53,967−96.9% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 1,505 | $7.24K | 0.00% | +12+0.8% | Added |
| Farther Finance Advisors, LLC | 1,998 | $8.99K | 0.00% | +1,997+199,700.0% | Added |
| CWM, LLC | 2,350 | $10.0K | 0.00% | +2,282+3,355.9% | Added |
| California State Teachers Retirement System | 2,665 | $11.8K | 0.00% | −26,816−91.0% | Reduced |
| Ameritas Investment Partners, Inc. | 3,701 | $16.4K | 0.00% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 4,812 | $21.0K | 0.00% | +4,812 | New |
| Tower Research Capital LLC (TRC) | 5,020 | $22.2K | 0.00% | +3,378+205.7% | Added |
| Point72 (DIFC) Ltd | 5,058 | $22.4K | 0.00% | +4,570+936.5% | Added |
| Skopos Labs, Inc. | 5,923 | $26.2K | 0.01% | +5,796+4,563.8% | Added |
| Police & Firemen's Retirement System of New Jersey | 7,327 | $32.5K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 8,575 | $38.0K | 0.00% | −26,367−75.5% | Reduced |
| China Universal Asset Management Co., Ltd. | 8,984 | $39.8K | 0.00% | −513−5.4% | Reduced |
| ProShare Advisors LLC | 10,109 | $44.8K | 0.00% | −2,536−20.1% | Reduced |
| New York State Common Retirement Fund | 10,110 | $44.8K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 10,211 | $45.2K | 0.00% | −1,484−12.7% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 11,084 | $49.1K | 0.00% | +11,084 | New |
| Corton Capital Inc. | 12,432 | $55.1K | 0.18% | +12,432 | New |
| EntryPoint Capital, LLC | 12,654 | $56.1K | 0.03% | +12,654 | New |
| SG Americas Securities, LLC | 13,284 | $59.0K | 0.00% | −4,445−25.1% | Reduced |
| Manufacturers Life Insurance Company, The | 13,939 | $61.8K | 0.00% | +121+0.9% | Added |
| Atom Investors LP | 14,141 | $62.6K | 0.01% | +14,141 | New |
| Bayesian Capital Management, LP | 14,382 | $63.7K | 0.01% | +14,382 | New |
| State Board of Administration of Florida Retirement System | 14,596 | $64.7K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 17,076 | $75.6K | 0.00% | −5,065−22.9% | Reduced |
| Price T Rowe Associates Inc | 17,211 | $77.0K | 0.00% | +3,144+22.4% | Added |
| Wells Fargo & Company | 17,852 | $79.1K | 0.00% | +394+2.3% | Added |
| Corebridge Financial, Inc. | 18,305 | $81.1K | 0.00% | −272−1.5% | Reduced |
| Gsa Capital Partners LLP | 20,631 | $91.0K | 0.01% | +20,631 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 22,121 | $98.0K | 0.00% | −697−3.1% | Reduced |
| Principal Financial Group Inc | 22,434 | $99.4K | 0.00% | +237+1.1% | Added |
| Bridgeway Capital Management, LLC | 24,900 | $110.3K | 0.00% | −25,000−50.1% | Reduced |
| Man Group plc | 26,004 | $115.2K | 0.00% | +26,004 | New |
| Intech Investment Management LLC | 26,695 | $118.3K | 0.00% | +4,519+20.4% | Added |
| Exchange Traded Concepts, LLC | 26,762 | $118.6K | 0.00% | +13,890+107.9% | Added |
| Citigroup Inc | 28,518 | $126.3K | 0.00% | −20,713−42.1% | Reduced |
| Deutsche Bank AG | 28,803 | $127.6K | 0.00% | −3,450−10.7% | Reduced |
| FMR LLC | 29,261 | $129.6K | 0.00% | −22,461−43.4% | Reduced |
| Point72 Asia (Singapore) Pte. Ltd. | 31,088 | $137.7K | 0.04% | +31,088 | New |
| Invesco Ltd. | 32,547 | $144.2K | 0.00% | +17,624+118.1% | Added |
| Alps Advisors Inc | 33,309 | $147.6K | 0.00% | −2,906−8.0% | Reduced |
| Virtus Investment Advisers, Inc. | 36,751 | $162.8K | 0.04% | +36,751 | New |
| Jump Financial, LLC | 38,079 | $168.7K | 0.00% | +4,699+14.1% | Added |
| Quest Partners LLC | 38,925 | $172.4K | 0.02% | +11,790+43.4% | Added |
| STRS Ohio | 43,400 | $192.3K | 0.00% | 00.0% | Unchanged |
| Sapient Capital LLC | 43,700 | $193.6K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 46,758 | $207.1K | 0.00% | −29,104−38.4% | Reduced |
| Rhumbline Advisers | 53,909 | $238.8K | 0.00% | +2,457+4.8% | Added |
| Alliancebernstein L.P. | 54,780 | $242.7K | 0.00% | 00.0% | Unchanged |
| Wesbanco Bank Inc | 55,000 | $243.7K | 0.01% | +55,000 | New |
| Susquehanna International Group, LLP | 60,660 | $268.7K | 0.00% | +32,171+112.9% | Added |
| XTX Topco Ltd | 91,454 | $405.1K | 0.02% | +70,686+340.4% | Added |
| UBS Group AG | 91,576 | $405.7K | 0.00% | +52,644+135.2% | Added |
| Bank of New York Mellon Corp | 92,474 | $409.7K | 0.00% | +250.0% | Added |
| BNP Paribas Arbitrage, SA | 95,502 | $423.1K | 0.00% | +90,628+1,859.4% | Added |
| Rice Hall James & Associates, LLC | 103,642 | $459.1K | 0.03% | −4,907−4.5% | Reduced |
| Nuveen, LLC | 112,483 | $498.3K | 0.00% | +112,483 | New |
| Squarepoint Ops LLC | 128,527 | $569.4K | 0.00% | +25,559+24.8% | Added |
| Stonepine Capital Management, LLC | 131,160 | $581.0K | 0.68% | +131,160 | New |
| Two Sigma Advisers, LP | 143,300 | $634.8K | 0.00% | +69,400+93.9% | Added |
| Federated Hermes, Inc. | 153,453 | $679.8K | 0.00% | +108,979+245.0% | Added |
| Citadel Advisors LLC | 153,955 | $682.0K | 0.00% | −67,959−30.6% | Reduced |
| Two Sigma Investments, LP | 154,785 | $685.7K | 0.00% | +66,448+75.2% | Added |
| Cubist Systematic Strategies, LLC | 155,522 | $689.0K | 0.01% | +107,511+223.9% | Added |
| Infinitum Asset Management, LLC | 155,529 | $689.0K | 0.22% | 00.0% | Unchanged |
| AQR Capital Management LLC | 164,788 | $730.0K | 0.00% | +147,788+869.3% | Added |
| Goldman Sachs Group Inc | 201,776 | $893.9K | 0.00% | −17,399−7.9% | Reduced |
| Wellington Management Group LLP | 204,052 | $904.0K | 0.00% | +70,789+53.1% | Added |
| Jacobs Levy Equity Management, Inc | 237,511 | $1.05M | 0.00% | +87,830+58.7% | Added |
| JPMorgan Chase & Co | 247,442 | $1.10M | 0.00% | +149,782+153.4% | Added |
| Renaissance Technologies LLC | 256,706 | $1.14M | 0.00% | +125,106+95.1% | Added |
| Charles Schwab Investment Management Inc | 277,610 | $1.23M | 0.00% | −6,930−2.4% | Reduced |
| Bank of America Corp | 282,318 | $1.25M | 0.00% | +155,159+122.0% | Added |
| Northern Trust Corp | 327,901 | $1.45M | 0.00% | −31,322−8.7% | Reduced |
| Soleus Capital Management, L.P. | 349,982 | $1.55M | 0.12% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 418,554 | $1.86M | 0.00% | −44,681−9.6% | Reduced |
| Pictet Asset Management Holding SA | 441,934 | $1.96M | 0.00% | −314,363−41.6% | Reduced |
| Millennium Management LLC | 466,620 | $2.07M | 0.00% | +431,173+1,216.4% | Added |
| Morgan Stanley | 500,161 | $2.22M | 0.00% | +179,354+55.9% | Added |
| D. E. Shaw & Co., Inc. | 549,666 | $2.44M | 0.00% | −65,465−10.6% | Reduced |
| Boothbay Fund Management, LLC | 693,693 | $3.07M | 0.11% | 00.0% | Unchanged |
| State Street Corp | 789,021 | $3.50M | 0.00% | −525,388−40.0% | Reduced |
| Geode Capital Management, LLC | 849,500 | $3.76M | 0.00% | +27,191+3.3% | Added |
| Polar Capital Holdings Plc | 1,831,000 | $8.11M | 0.05% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,946,509 | $8.62M | 0.00% | −53,513−2.7% | Reduced |
| Sofinnova Investments, Inc. | 2,194,278 | $9.72M | 0.73% | 00.0% | Unchanged |
| Caligan Partners LP | 2,342,609 | $10.4M | 2.17% | +574,627+32.5% | Added |