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 |
|---|---|---|---|---|---|
| Paradigm Biocapital Advisors LP | 3,870,594 | $46.8M | 1.79% | +1,636,984+73.3% | Added |
| BlackRock Inc. | 2,938,718 | $35.5M | 0.00% | +81,461+2.9% | Added |
| Sofinnova Investments, Inc. | 2,194,278 | $26.5M | 1.67% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,957,339 | $23.6M | 0.00% | −112,178−5.4% | Reduced |
| Polar Capital Holdings Plc | 1,831,000 | $22.1M | 0.13% | 00.0% | Unchanged |
| Cormorant Asset Management, LP | 1,450,000 | $17.5M | 1.02% | +1,450,000 | New |
| D. E. Shaw & Co., Inc. | 926,457 | $11.2M | 0.02% | −141,702−13.3% | Reduced |
| State Street Corp | 804,612 | $9.72M | 0.00% | +53,539+7.1% | Added |
| Geode Capital Management, LLC | 765,643 | $9.25M | 0.00% | +22,894+3.1% | Added |
| Pictet Asset Management Holding SA | 659,672 | $7.97M | 0.01% | −86,429−11.6% | Reduced |
| Soleus Capital Management, L.P. | 647,982 | $7.83M | 0.69% | +77,000+13.5% | Added |
| Caligan Partners LP | 582,078 | $7.03M | 1.64% | −5,198−0.9% | Reduced |
| Dimensional Fund Advisors LP | 484,431 | $5.85M | 0.00% | +65,732+15.7% | Added |
| Boothbay Fund Management, LLC | 369,360 | $4.46M | 0.14% | +22,849+6.6% | Added |
| Point72 Asset Management, L.P. | 358,945 | $4.34M | 0.01% | −1,168,155−76.5% | Reduced |
| Millennium Management LLC | 349,784 | $4.23M | 0.00% | +67,233+23.8% | Added |
| Acadian Asset Management LLC | 323,175 | $3.90M | 0.01% | −279,139−46.3% | Reduced |
| Northern Trust Corp | 317,805 | $3.84M | 0.00% | −3,910−1.2% | Reduced |
| Citadel Advisors LLC | 261,744 | $3.16M | 0.00% | +143,443+121.3% | Added |
| Charles Schwab Investment Management Inc | 255,595 | $3.09M | 0.00% | +5,370+2.1% | Added |
| Morgan Stanley | 203,140 | $2.45M | 0.00% | +15,043+8.0% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 176,055 | $2.13M | 0.01% | −26,019−12.9% | Reduced |
| Wellington Management Group LLP | 160,444 | $1.94M | 0.00% | +14,141+9.7% | Added |
| Jacobs Levy Equity Management, Inc | 149,681 | $1.81M | 0.01% | −4,335−2.8% | Reduced |
| Goldman Sachs Group Inc | 138,739 | $1.68M | 0.00% | −226,797−62.0% | Reduced |
| Squarepoint Ops LLC | 126,389 | $1.53M | 0.01% | +74,452+143.4% | Added |
| Bank of New York Mellon Corp | 120,954 | $1.46M | 0.00% | +8,974+8.0% | Added |
| Nuveen Asset Management, LLC | 112,483 | $1.36M | 0.00% | −155,247−58.0% | Reduced |
| Two Sigma Advisers, LP | 97,700 | $1.18M | 0.00% | −32,700−25.1% | Reduced |
| Rice Hall James & Associates, LLC | 89,735 | $1.08M | 0.07% | +3,589+4.2% | Added |
| Massachusetts Financial Services Co | 82,202 | $993.0K | 0.00% | +2,760+3.5% | Added |
| Jane Street Group, LLC | 81,959 | $990.1K | 0.00% | −18,559−18.5% | Reduced |
| Bridgeway Capital Management, LLC | 76,000 | $918.1K | 0.02% | +10,400+15.9% | Added |
| Franklin Resources Inc | 66,977 | $809.1K | 0.00% | +33,996+103.1% | Added |
| Renaissance Technologies LLC | 64,637 | $780.8K | 0.00% | −50,663−43.9% | Reduced |
| Prudential Financial Inc | 62,725 | $757.7K | 0.00% | −2,435−3.7% | Reduced |
| Campbell & CO Investment Adviser LLC | 62,046 | $749.5K | 0.06% | −14,394−18.8% | Reduced |
| Two Sigma Investments, LP | 61,316 | $740.7K | 0.00% | −42,986−41.2% | Reduced |
| Swiss National Bank | 60,300 | $728.4K | 0.00% | +60,300 | New |
| UBS Asset Management Americas Inc | 58,299 | $704.3K | 0.00% | +58,299 | New |
| Alliancebernstein L.P. | 58,140 | $702.3K | 0.00% | −3,780−6.1% | Reduced |
| Rhumbline Advisers | 54,368 | $656.8K | 0.00% | −856−1.6% | Reduced |
| Bank of America Corp | 44,683 | $539.8K | 0.00% | +31,546+240.1% | Added |
| Federated Hermes, Inc. | 44,474 | $537.2K | 0.00% | −91−0.2% | Reduced |
| Balyasny Asset Management LLC | 43,973 | $531.2K | 0.00% | +43,973 | New |
| Sapient Capital LLC | 43,700 | $527.9K | 0.01% | 00.0% | Unchanged |
| STRS Ohio | 43,400 | $524.3K | 0.00% | +8,300+23.6% | Added |
| State of Wisconsin Investment Board | 41,207 | $497.8K | 0.00% | +6,204+17.7% | Added |
| Alps Advisors Inc | 34,224 | $413.4K | 0.00% | +34,224 | New |
| Legal & General Group Plc | 32,690 | $394.9K | 0.00% | +29,379+887.3% | Added |
| California State Teachers Retirement System | 30,449 | $367.8K | 0.00% | +26,749+722.9% | Added |
| FMR LLC | 29,594 | $357.5K | 0.00% | +1,628+5.8% | Added |
| JPMorgan Chase & Co | 27,481 | $332.0K | 0.00% | −3,687−11.8% | Reduced |
| Virtus ETF Advisers LLC | 27,332 | $330.2K | 0.16% | +27,332 | New |
| BNP Paribas Arbitrage, SA | 26,956 | $325.6K | 0.00% | −7,919−22.7% | Reduced |
| XTX Topco Ltd | 24,621 | $297.4K | 0.03% | +24,621 | New |
| Sherbrooke Park Advisers LLC | 23,647 | $285.7K | 0.05% | +23,647 | New |
| Deutsche Bank AG | 22,536 | $272.2K | 0.00% | +3,897+20.9% | Added |
| Price T Rowe Associates Inc | 22,279 | $270.0K | 0.00% | +1,121+5.3% | Added |
| MetLife Investment Management | 22,141 | $267.5K | 0.00% | +2,055+10.2% | Added |
| AQR Capital Management LLC | 21,926 | $264.9K | 0.00% | −15,915−42.1% | Reduced |
| Corebridge Financial, Inc. | 19,787 | $239.0K | 0.00% | +19,787 | New |
| UBS Group AG | 19,004 | $229.6K | 0.00% | −18,543−49.4% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 17,897 | $216.2K | 0.00% | +17,897 | New |
| Janus Henderson Group PLC | 16,300 | $196.7K | 0.00% | +16,300 | New |
| State Board of Administration of Florida Retirement System | 14,596 | $176.3K | 0.00% | +290+2.0% | Added |
| Exchange Traded Concepts, LLC | 14,489 | $175.0K | 0.00% | −4,507−23.7% | Reduced |
| Manufacturers Life Insurance Company, The | 14,422 | $174.2K | 0.00% | −253−1.7% | Reduced |
| Invesco Ltd. | 14,227 | $171.9K | 0.00% | +939+7.1% | Added |
| Barclays PLC | 12,978 | $156.8K | 0.00% | −12,760−49.6% | Reduced |
| New York State Common Retirement Fund | 12,610 | $152.3K | 0.00% | −30.0% | Reduced |
| Voya Investment Management LLC | 12,601 | $152.2K | 0.00% | +62+0.5% | Added |
| Wells Fargo & Company | 11,776 | $142.3K | 0.00% | −239−2.0% | Reduced |
| Citigroup Inc | 8,969 | $108.3K | 0.00% | +2,224+33.0% | Added |
| Tower Research Capital LLC (TRC) | 6,902 | $83.4K | 0.00% | +3,516+103.8% | Added |
| Cubist Systematic Strategies, LLC | 6,597 | $79.7K | 0.00% | −71,189−91.5% | Reduced |
| EntryPoint Capital, LLC | 6,152 | $74.3K | 0.03% | +6,152 | New |
| China Universal Asset Management Co., Ltd. | 5,156 | $62.3K | 0.01% | −3,234−38.5% | Reduced |
| Ameritas Investment Partners, Inc. | 3,701 | $44.7K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 3,459 | $42.0K | 0.00% | +2,622+313.3% | Added |
| Great West Life Assurance Co | 3,048 | $37.0K | 0.00% | +3,048 | New |
| Mirae Asset Global Investments Co., Ltd. | 1,310 | $16.2K | 0.00% | +1,310 | New |
| Danske Bank A/S | 1,276 | $15.4K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 1,217 | $15.0K | 0.00% | 00.0% | Unchanged |
| HighMark Wealth Management LLC | 220 | $2.66K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 188 | $2.27K | 0.00% | +163+652.0% | Added |
| Daiwa Securities Group Inc. | 162 | $2.00K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 67 | $1.00K | 0.00% | +1+1.5% | Added |
| Signaturefd, LLC | 64 | $773 | 0.00% | +64 | New |
| Nisa Investment Advisors, LLC | 53 | $640 | 0.00% | −25−32.1% | Reduced |
| Point72 (DIFC) Ltd | 53 | $637 | 0.00% | −14,711−99.6% | Reduced |
| Eagle Bay Advisors LLC | 50 | $604 | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 30 | $362 | 0.00% | +30 | New |
| GAMMA Investing LLC | 5 | $60 | 0.00% | −21−80.8% | Reduced |
| Farther Finance Advisors, LLC | 1 | $12 | 0.00% | 00.0% | Unchanged |
| Quest Partners LLC | 1 | $12 | 0.00% | +1 | New |
| 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 |