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, Q2 2024
Institutional positions in Y-mAbs Therapeutics, Inc. as of Jun 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
- 96
- +1 vs. Q1 2024
- Shares held
- 24.4M
- +1.38M (+6.0%) vs. Q1 2024
- Total value
- $294.2M
- −$79.2M (−21.2%) vs. Q1 2024
- New holders
- 17
- 35 more added
- Sold out
- 16
- 34 more reduced
1 institution that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2024
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Farther Finance Advisors, LLC | 1 | $12 | 0.00% | 00.0% | Unchanged |
| Quest Partners LLC | 1 | $12 | 0.00% | +1 | New |
| GAMMA Investing LLC | 5 | $60 | 0.00% | −21−80.8% | Reduced |
| Advisor Group Holdings, Inc. | 30 | $362 | 0.00% | +30 | New |
| Eagle Bay Advisors LLC | 50 | $604 | 0.00% | 00.0% | Unchanged |
| Point72 (DIFC) Ltd | 53 | $637 | 0.00% | −14,711−99.6% | Reduced |
| Nisa Investment Advisors, LLC | 53 | $640 | 0.00% | −25−32.1% | Reduced |
| Signaturefd, LLC | 64 | $773 | 0.00% | +64 | New |
| CWM, LLC | 67 | $1.00K | 0.00% | +1+1.5% | Added |
| Daiwa Securities Group Inc. | 162 | $2.00K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 188 | $2.27K | 0.00% | +163+652.0% | Added |
| HighMark Wealth Management LLC | 220 | $2.66K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 1,217 | $15.0K | 0.00% | 00.0% | Unchanged |
| Danske Bank A/S | 1,276 | $15.4K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 1,310 | $16.2K | 0.00% | +1,310 | New |
| Great West Life Assurance Co | 3,048 | $37.0K | 0.00% | +3,048 | New |
| Royal Bank of Canada | 3,459 | $42.0K | 0.00% | +2,622+313.3% | Added |
| Ameritas Investment Partners, Inc. | 3,701 | $44.7K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 5,156 | $62.3K | 0.01% | −3,234−38.5% | Reduced |
| EntryPoint Capital, LLC | 6,152 | $74.3K | 0.03% | +6,152 | New |
| Cubist Systematic Strategies, LLC | 6,597 | $79.7K | 0.00% | −71,189−91.5% | Reduced |
| Tower Research Capital LLC (TRC) | 6,902 | $83.4K | 0.00% | +3,516+103.8% | Added |
| Citigroup Inc | 8,969 | $108.3K | 0.00% | +2,224+33.0% | Added |
| Wells Fargo & Company | 11,776 | $142.3K | 0.00% | −239−2.0% | Reduced |
| Voya Investment Management LLC | 12,601 | $152.2K | 0.00% | +62+0.5% | Added |
| New York State Common Retirement Fund | 12,610 | $152.3K | 0.00% | −30.0% | Reduced |
| Barclays PLC | 12,978 | $156.8K | 0.00% | −12,760−49.6% | Reduced |
| Invesco Ltd. | 14,227 | $171.9K | 0.00% | +939+7.1% | Added |
| Manufacturers Life Insurance Company, The | 14,422 | $174.2K | 0.00% | −253−1.7% | Reduced |
| Exchange Traded Concepts, LLC | 14,489 | $175.0K | 0.00% | −4,507−23.7% | Reduced |
| State Board of Administration of Florida Retirement System | 14,596 | $176.3K | 0.00% | +290+2.0% | Added |
| Janus Henderson Group PLC | 16,300 | $196.7K | 0.00% | +16,300 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 17,897 | $216.2K | 0.00% | +17,897 | New |
| UBS Group AG | 19,004 | $229.6K | 0.00% | −18,543−49.4% | Reduced |
| Corebridge Financial, Inc. | 19,787 | $239.0K | 0.00% | +19,787 | New |
| AQR Capital Management LLC | 21,926 | $264.9K | 0.00% | −15,915−42.1% | Reduced |
| MetLife Investment Management | 22,141 | $267.5K | 0.00% | +2,055+10.2% | Added |
| Price T Rowe Associates Inc | 22,279 | $270.0K | 0.00% | +1,121+5.3% | Added |
| Deutsche Bank AG | 22,536 | $272.2K | 0.00% | +3,897+20.9% | Added |
| Sherbrooke Park Advisers LLC | 23,647 | $285.7K | 0.05% | +23,647 | New |
| XTX Topco Ltd | 24,621 | $297.4K | 0.03% | +24,621 | New |
| BNP Paribas Arbitrage, SA | 26,956 | $325.6K | 0.00% | −7,919−22.7% | Reduced |
| Virtus ETF Advisers LLC | 27,332 | $330.2K | 0.16% | +27,332 | New |
| JPMorgan Chase & Co | 27,481 | $332.0K | 0.00% | −3,687−11.8% | Reduced |
| FMR LLC | 29,594 | $357.5K | 0.00% | +1,628+5.8% | Added |
| California State Teachers Retirement System | 30,449 | $367.8K | 0.00% | +26,749+722.9% | Added |
| Legal & General Group Plc | 32,690 | $394.9K | 0.00% | +29,379+887.3% | Added |
| Alps Advisors Inc | 34,224 | $413.4K | 0.00% | +34,224 | New |
| State of Wisconsin Investment Board | 41,207 | $497.8K | 0.00% | +6,204+17.7% | Added |
| STRS Ohio | 43,400 | $524.3K | 0.00% | +8,300+23.6% | Added |
| Sapient Capital LLC | 43,700 | $527.9K | 0.01% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 43,973 | $531.2K | 0.00% | +43,973 | New |
| Federated Hermes, Inc. | 44,474 | $537.2K | 0.00% | −91−0.2% | Reduced |
| Bank of America Corp | 44,683 | $539.8K | 0.00% | +31,546+240.1% | Added |
| Rhumbline Advisers | 54,368 | $656.8K | 0.00% | −856−1.6% | Reduced |
| Alliancebernstein L.P. | 58,140 | $702.3K | 0.00% | −3,780−6.1% | Reduced |
| UBS Asset Management Americas Inc | 58,299 | $704.3K | 0.00% | +58,299 | New |
| Swiss National Bank | 60,300 | $728.4K | 0.00% | +60,300 | New |
| Two Sigma Investments, LP | 61,316 | $740.7K | 0.00% | −42,986−41.2% | Reduced |
| Campbell & CO Investment Adviser LLC | 62,046 | $749.5K | 0.06% | −14,394−18.8% | Reduced |
| Prudential Financial Inc | 62,725 | $757.7K | 0.00% | −2,435−3.7% | Reduced |
| Renaissance Technologies LLC | 64,637 | $780.8K | 0.00% | −50,663−43.9% | Reduced |
| Franklin Resources Inc | 66,977 | $809.1K | 0.00% | +33,996+103.1% | Added |
| Bridgeway Capital Management, LLC | 76,000 | $918.1K | 0.02% | +10,400+15.9% | Added |
| Jane Street Group, LLC | 81,959 | $990.1K | 0.00% | −18,559−18.5% | Reduced |
| Massachusetts Financial Services Co | 82,202 | $993.0K | 0.00% | +2,760+3.5% | Added |
| Rice Hall James & Associates, LLC | 89,735 | $1.08M | 0.07% | +3,589+4.2% | Added |
| Two Sigma Advisers, LP | 97,700 | $1.18M | 0.00% | −32,700−25.1% | Reduced |
| Nuveen Asset Management, LLC | 112,483 | $1.36M | 0.00% | −155,247−58.0% | Reduced |
| Bank of New York Mellon Corp | 120,954 | $1.46M | 0.00% | +8,974+8.0% | Added |
| Squarepoint Ops LLC | 126,389 | $1.53M | 0.01% | +74,452+143.4% | Added |
| Goldman Sachs Group Inc | 138,739 | $1.68M | 0.00% | −226,797−62.0% | Reduced |
| Jacobs Levy Equity Management, Inc | 149,681 | $1.81M | 0.01% | −4,335−2.8% | Reduced |
| Wellington Management Group LLP | 160,444 | $1.94M | 0.00% | +14,141+9.7% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 176,055 | $2.13M | 0.01% | −26,019−12.9% | Reduced |
| Morgan Stanley | 203,140 | $2.45M | 0.00% | +15,043+8.0% | Added |
| Charles Schwab Investment Management Inc | 255,595 | $3.09M | 0.00% | +5,370+2.1% | Added |
| Citadel Advisors LLC | 261,744 | $3.16M | 0.00% | +143,443+121.3% | Added |
| Northern Trust Corp | 317,805 | $3.84M | 0.00% | −3,910−1.2% | Reduced |
| Acadian Asset Management LLC | 323,175 | $3.90M | 0.01% | −279,139−46.3% | Reduced |
| Millennium Management LLC | 349,784 | $4.23M | 0.00% | +67,233+23.8% | Added |
| Point72 Asset Management, L.P. | 358,945 | $4.34M | 0.01% | −1,168,155−76.5% | Reduced |
| Boothbay Fund Management, LLC | 369,360 | $4.46M | 0.14% | +22,849+6.6% | Added |
| Dimensional Fund Advisors LP | 484,431 | $5.85M | 0.00% | +65,732+15.7% | Added |
| Caligan Partners LP | 582,078 | $7.03M | 1.64% | −5,198−0.9% | Reduced |
| Soleus Capital Management, L.P. | 647,982 | $7.83M | 0.69% | +77,000+13.5% | Added |
| Pictet Asset Management Holding SA | 659,672 | $7.97M | 0.01% | −86,429−11.6% | Reduced |
| Geode Capital Management, LLC | 765,643 | $9.25M | 0.00% | +22,894+3.1% | Added |
| State Street Corp | 804,612 | $9.72M | 0.00% | +53,539+7.1% | Added |
| D. E. Shaw & Co., Inc. | 926,457 | $11.2M | 0.02% | −141,702−13.3% | Reduced |
| Cormorant Asset Management, LP | 1,450,000 | $17.5M | 1.02% | +1,450,000 | New |
| Polar Capital Holdings Plc | 1,831,000 | $22.1M | 0.13% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,957,339 | $23.6M | 0.00% | −112,178−5.4% | Reduced |
| Sofinnova Investments, Inc. | 2,194,278 | $26.5M | 1.67% | 00.0% | Unchanged |
| BlackRock Inc. | 2,938,718 | $35.5M | 0.00% | +81,461+2.9% | Added |
| Paradigm Biocapital Advisors LP | 3,870,594 | $46.8M | 1.79% | +1,636,984+73.3% | Added |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −127,551−100.0% | Sold out |
| American Century Companies Inc | 0 | $0 | 0.00% | −45,799−100.0% | Sold out |
| Boston Partners | 0 | $0 | 0.00% | −34,165−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −22,415−100.0% | Sold out |