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 2024
Institutional positions in Y-mAbs Therapeutics, Inc. as of Mar 31, 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
- +2 vs. Q4 2023
- Shares held
- 23.0M
- +2.78M (+13.7%) vs. Q4 2023
- Total value
- $374.0M
- +$236.0M (+171.0%) vs. Q4 2023
- New holders
- 20
- 25 more added
- Sold out
- 18
- 44 more reduced
Compare with Q4 2023: 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 2024
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 2,857,257 | $46.5M | 0.00% | −59,823−2.1% | Reduced |
| Paradigm Biocapital Advisors LP | 2,233,610 | $36.3M | 1.28% | +2,233,610 | New |
| Sofinnova Investments, Inc. | 2,194,278 | $35.7M | 2.11% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,069,517 | $33.7M | 0.00% | −174,721−7.8% | Reduced |
| Polar Capital Holdings Plc | 1,831,000 | $29.8M | 0.18% | −225,872−11.0% | Reduced |
| Point72 Asset Management, L.P. | 1,527,100 | $24.8M | 0.07% | +1,527,100 | New |
| D. E. Shaw & Co., Inc. | 1,068,159 | $17.4M | 0.02% | −255,621−19.3% | Reduced |
| State Street Corp | 751,073 | $12.2M | 0.00% | −10,459−1.4% | Reduced |
| Pictet Asset Management Holding SA | 746,101 | $12.1M | 0.01% | +746,101 | New |
| Geode Capital Management, LLC | 742,749 | $12.1M | 0.00% | +4,201+0.6% | Added |
| Acadian Asset Management LLC | 602,314 | $9.79M | 0.03% | −200,067−24.9% | Reduced |
| Caligan Partners LP | 587,276 | $9.55M | 2.52% | −461,149−44.0% | Reduced |
| Soleus Capital Management, L.P. | 570,982 | $9.28M | 0.82% | +413,800+263.3% | Added |
| Dimensional Fund Advisors LP | 418,699 | $6.81M | 0.00% | +105,598+33.7% | Added |
| Goldman Sachs Group Inc | 365,536 | $5.94M | 0.00% | −32,415−8.1% | Reduced |
| Boothbay Fund Management, LLC | 346,511 | $5.63M | 0.17% | −347,583−50.1% | Reduced |
| Northern Trust Corp | 321,715 | $5.23M | 0.00% | −3,724−1.1% | Reduced |
| Millennium Management LLC | 282,551 | $4.59M | 0.00% | +261,490+1,241.6% | Added |
| Nuveen Asset Management, LLC | 267,730 | $4.35M | 0.00% | −132,210−33.1% | Reduced |
| Charles Schwab Investment Management Inc | 250,225 | $4.07M | 0.00% | +2,719+1.1% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 202,074 | $3.29M | 0.01% | +32,071+18.9% | Added |
| Morgan Stanley | 188,097 | $3.06M | 0.00% | −57,048−23.3% | Reduced |
| Jacobs Levy Equity Management, Inc | 154,016 | $2.50M | 0.01% | −98,904−39.1% | Reduced |
| Wellington Management Group LLP | 146,303 | $2.38M | 0.00% | +146,303 | New |
| Two Sigma Advisers, LP | 130,400 | $2.12M | 0.00% | −34,600−21.0% | Reduced |
| Los Angeles Capital Management LLC | 127,551 | $2.07M | 0.01% | −228,979−64.2% | Reduced |
| Citadel Advisors LLC | 118,301 | $1.92M | 0.00% | −19,199−14.0% | Reduced |
| Renaissance Technologies LLC | 115,300 | $1.88M | 0.00% | −59,500−34.0% | Reduced |
| Bank of New York Mellon Corp | 111,980 | $1.82M | 0.00% | −7,987−6.7% | Reduced |
| Two Sigma Investments, LP | 104,302 | $1.70M | 0.00% | +42,463+68.7% | Added |
| Jane Street Group, LLC | 100,518 | $1.63M | 0.00% | +68,230+211.3% | Added |
| Rice Hall James & Associates, LLC | 86,146 | $1.40M | 0.08% | +633+0.7% | Added |
| Massachusetts Financial Services Co | 79,442 | $1.29M | 0.00% | −175−0.2% | Reduced |
| Cubist Systematic Strategies, LLC | 77,786 | $1.26M | 0.01% | +40,674+109.6% | Added |
| Campbell & CO Investment Adviser LLC | 76,440 | $1.24M | 0.11% | −5,951−7.2% | Reduced |
| Bridgeway Capital Management, LLC | 65,600 | $1.07M | 0.02% | −30,000−31.4% | Reduced |
| Prudential Financial Inc | 65,160 | $1.06M | 0.00% | −48,490−42.7% | Reduced |
| Alliancebernstein L.P. | 61,920 | $1.01M | 0.00% | −810−1.3% | Reduced |
| Rhumbline Advisers | 55,224 | $897.9K | 0.00% | +1,211+2.2% | Added |
| Squarepoint Ops LLC | 51,937 | $844.5K | 0.00% | +51,937 | New |
| American Century Companies Inc | 45,799 | $744.7K | 0.00% | +17,355+61.0% | Added |
| Federated Hermes, Inc. | 44,565 | $724.6K | 0.00% | +91+0.2% | Added |
| Sapient Capital LLC | 43,700 | $710.6K | 0.02% | 00.0% | Unchanged |
| AQR Capital Management LLC | 37,841 | $615.3K | 0.00% | +37,841 | New |
| UBS Group AG | 37,547 | $610.5K | 0.00% | +803+2.2% | Added |
| Ziegler Capital Management, LLC | 35,461 | $576.6K | 0.02% | +35,461 | New |
| STRS Ohio | 35,100 | $570.0K | 0.00% | −43,600−55.4% | Reduced |
| State of Wisconsin Investment Board | 35,003 | $569.1K | 0.00% | −41,900−54.5% | Reduced |
| BNP Paribas Arbitrage, SA | 34,875 | $567.1K | 0.00% | −299−0.9% | Reduced |
| Boston Partners | 34,165 | $555.5K | 0.00% | +34,165 | New |
| Franklin Resources Inc | 32,981 | $536.3K | 0.00% | +17,243+109.6% | Added |
| JPMorgan Chase & Co | 31,168 | $506.8K | 0.00% | −10,196−24.6% | Reduced |
| FMR LLC | 27,966 | $454.7K | 0.00% | −8,876−24.1% | Reduced |
| Barclays PLC | 25,738 | $418.5K | 0.00% | −24,699−49.0% | Reduced |
| Susquehanna International Group, LLP | 22,415 | $364.5K | 0.00% | +5,775+34.7% | Added |
| Price T Rowe Associates Inc | 21,158 | $345.0K | 0.00% | +1,657+8.5% | Added |
| MetLife Investment Management | 20,086 | $326.6K | 0.00% | 00.0% | Unchanged |
| Exchange Traded Concepts, LLC | 18,996 | $308.9K | 0.01% | −9,099−32.4% | Reduced |
| Caxton Associates LP | 18,807 | $305.8K | 0.02% | +18,807 | New |
| Deutsche Bank AG | 18,639 | $303.1K | 0.00% | −25−0.1% | Reduced |
| American International Group, Inc. | 18,132 | $294.8K | 0.00% | −155−0.8% | Reduced |
| Verition Fund Management LLC | 16,588 | $269.7K | 0.00% | +16,588 | New |
| HRT Financial LP | 16,216 | $263.0K | 0.00% | +16,216 | New |
| Point72 (DIFC) Ltd | 14,764 | $240.1K | 0.02% | +14,764 | New |
| Manufacturers Life Insurance Company, The | 14,675 | $238.6K | 0.00% | −907−5.8% | Reduced |
| Principal Financial Group Inc | 13,729 | $223.2K | 0.00% | −1,100−7.4% | Reduced |
| Invesco Ltd. | 13,288 | $216.1K | 0.00% | +27+0.2% | Added |
| Bank of America Corp | 13,137 | $213.6K | 0.00% | −23,376−64.0% | Reduced |
| New York State Common Retirement Fund | 12,613 | $205.1K | 0.00% | +6,374+102.2% | Added |
| Voya Investment Management LLC | 12,539 | $203.9K | 0.00% | −3,066−19.6% | Reduced |
| Wells Fargo & Company | 12,015 | $195.4K | 0.00% | +1,582+15.2% | Added |
| SG Americas Securities, LLC | 11,963 | $195.0K | 0.00% | −9,596−44.5% | Reduced |
| China Universal Asset Management Co., Ltd. | 8,390 | $136.4K | 0.02% | +3,340+66.1% | Added |
| Citigroup Inc | 6,745 | $109.7K | 0.00% | +734+12.2% | Added |
| Point72 Asia (Singapore) Pte. Ltd. | 6,019 | $97.9K | 0.03% | +6,019 | New |
| Quantbot Technologies LP | 4,532 | $73.7K | 0.00% | +4,532 | New |
| State Board of Administration of Florida Retirement System | 14,306 | $71.7K | 0.00% | −290−2.0% | Reduced |
| Ameritas Investment Partners, Inc. | 3,701 | $60.2K | 0.00% | +1,056+39.9% | Added |
| California State Teachers Retirement System | 3,700 | $60.2K | 0.00% | −2,356−38.9% | Reduced |
| Tower Research Capital LLC (TRC) | 3,386 | $55.1K | 0.00% | −3,300−49.4% | Reduced |
| Legal & General Group Plc | 3,311 | $53.8K | 0.00% | −359−9.8% | Reduced |
| Aquatic Capital Management LLC | 3,300 | $53.7K | 0.00% | +3,300 | New |
| Metropolitan Life Insurance Co | 2,055 | $33.4K | 0.00% | 00.0% | Unchanged |
| Danske Bank A/S | 1,276 | $20.7K | 0.00% | +1,276 | New |
| Amalgamated Bank | 1,217 | $20.0K | 0.00% | −2,904−70.5% | Reduced |
| Tucker Asset Management LLC | 1,200 | $19.5K | 0.00% | +1,200 | New |
| Royal Bank of Canada | 837 | $13.0K | 0.00% | −9,540−91.9% | Reduced |
| HighMark Wealth Management LLC | 220 | $3.58K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 162 | $3.00K | 0.00% | +162 | New |
| Nisa Investment Advisors, LLC | 78 | $1.27K | 0.00% | +38+95.0% | Added |
| CWM, LLC | 66 | $1.00K | 0.00% | +1+1.5% | Added |
| Eagle Bay Advisors LLC | 50 | $813 | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 26 | $423 | 0.00% | +26 | New |
| Russell Investments Group, Ltd. | 25 | $407 | 0.00% | −16,903−99.9% | Reduced |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 8 | $130 | 0.00% | +8 | New |
| Farther Finance Advisors, LLC | 1 | $16 | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −114,786−100.0% | Sold out |
| New York Life Investment Management LLC | 0 | $0 | 0.00% | −68,932−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −41,949−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −28,616−100.0% | Sold out |