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