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, Q3 2023
Institutional positions in Y-mAbs Therapeutics, Inc. as of Sep 30, 2023. 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
- 99
- +4 vs. Q2 2023
- Shares held
- 19.7M
- +157.5K (+0.8%) vs. Q2 2023
- Total value
- $107.3M
- −$25.2M (−19.0%) vs. Q2 2023
- New holders
- 9
- 31 more added
- Sold out
- 5
- 36 more reduced
Compare with Q2 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, Q3 2023
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 2,473,356 | $13.5M | 0.00% | −58,423−2.3% | Reduced |
| Vanguard Group Inc | 2,231,908 | $12.2M | 0.00% | +4,899+0.2% | Added |
| Sofinnova Investments, Inc. | 2,194,278 | $12.0M | 0.83% | 00.0% | Unchanged |
| Polar Capital Holdings Plc | 2,103,298 | $11.5M | 0.09% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 1,349,210 | $7.35M | 0.01% | +73,813+5.8% | Added |
| Acadian Asset Management LLC | 811,261 | $4.42M | 0.02% | +157,173+24.0% | Added |
| State Street Corp | 741,098 | $4.04M | 0.00% | −3,509−0.5% | Reduced |
| Geode Capital Management, LLC | 710,833 | $3.87M | 0.00% | −831−0.1% | Reduced |
| Jacobs Levy Equity Management, Inc | 530,439 | $2.89M | 0.02% | −34,092−6.0% | Reduced |
| Citadel Advisors LLC | 414,307 | $2.26M | 0.00% | +382,794+1,214.7% | Added |
| Goldman Sachs Group Inc | 389,347 | $2.12M | 0.00% | −13,304−3.3% | Reduced |
| Nuveen Asset Management, LLC | 358,399 | $1.95M | 0.00% | −66,432−15.6% | Reduced |
| Millennium Management LLC | 346,916 | $1.89M | 0.00% | +17,347+5.3% | Added |
| Northern Trust Corp | 323,187 | $1.76M | 0.00% | −5,335−1.6% | Reduced |
| Los Angeles Capital Management LLC | 303,920 | $1.66M | 0.01% | +32,994+12.2% | Added |
| Prudential Financial Inc | 285,850 | $1.56M | 0.00% | +35,900+14.4% | Added |
| Charles Schwab Investment Management Inc | 249,444 | $1.36M | 0.00% | −7,651−3.0% | Reduced |
| AQR Capital Management LLC | 245,482 | $1.34M | 0.00% | +45,982+23.0% | Added |
| Dimensional Fund Advisors LP | 241,589 | $1.32M | 0.00% | +112,091+86.6% | Added |
| Renaissance Technologies LLC | 237,090 | $1.29M | 0.00% | +20,890+9.7% | Added |
| Two Sigma Advisers, LP | 202,200 | $1.10M | 0.00% | −8,000−3.8% | Reduced |
| Memorial Sloan Kettering Cancer Center | 191,176 | $1.04M | 4.24% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 183,948 | $1.00M | 0.01% | −1,885−1.0% | Reduced |
| Soleus Capital Management, L.P. | 157,182 | $856.6K | 0.09% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 137,299 | $748.0K | 0.06% | +92,765+208.3% | Added |
| Bank of New York Mellon Corp | 119,605 | $651.8K | 0.00% | +1,319+1.1% | Added |
| Victory Capital Management Inc | 109,500 | $596.8K | 0.00% | +18,320+20.1% | Added |
| Morgan Stanley | 107,874 | $587.9K | 0.00% | −22,748−17.4% | Reduced |
| State of Wisconsin Investment Board | 101,703 | $554.3K | 0.00% | +900+0.9% | Added |
| Marshall Wace, LLP | 98,931 | $539.2K | 0.00% | −28,737−22.5% | Reduced |
| Bridgeway Capital Management, LLC | 95,600 | $521.0K | 0.01% | +20,600+27.5% | Added |
| Rice Hall James & Associates, LLC | 91,249 | $497.3K | 0.03% | −1,773−1.9% | Reduced |
| STRS Ohio | 89,000 | $485.0K | 0.00% | +14,900+20.1% | Added |
| Denali Advisors LLC | 85,900 | $468.2K | 0.16% | 00.0% | Unchanged |
| Massachusetts Financial Services Co | 82,131 | $447.6K | 0.00% | +59,201+258.2% | Added |
| Point72 Asset Management, L.P. | 79,600 | $433.8K | 0.00% | −303,987−79.2% | Reduced |
| Alliancebernstein L.P. | 77,289 | $421.2K | 0.00% | −89,700−53.7% | Reduced |
| Trexquant Investment LP | 76,585 | $417.4K | 0.01% | +61,785+417.5% | Added |
| Two Sigma Investments, LP | 73,031 | $398.0K | 0.00% | −91,743−55.7% | Reduced |
| New York Life Investment Management LLC | 70,955 | $386.7K | 0.00% | −11,307−13.7% | Reduced |
| Rhumbline Advisers | 54,887 | $299.1K | 0.00% | +2,098+4.0% | Added |
| Ameriprise Financial Inc | 41,781 | $227.7K | 0.00% | +10,600+34.0% | Added |
| Susquehanna Fundamental Investments, LLC | 40,960 | $223.2K | 0.01% | 00.0% | Unchanged |
| Voya Investment Management LLC | 38,370 | $209.1K | 0.00% | +4,024+11.7% | Added |
| Cubist Systematic Strategies, LLC | 36,553 | $199.2K | 0.00% | −101,995−73.6% | Reduced |
| FMR LLC | 36,075 | $196.6K | 0.00% | −897−2.4% | Reduced |
| Bank of America Corp | 34,436 | $187.7K | 0.00% | −1,280−3.6% | Reduced |
| JPMorgan Chase & Co | 32,523 | $177.3K | 0.00% | −6,000−15.6% | Reduced |
| XTX Topco Ltd | 31,690 | $172.7K | 0.03% | −13,571−30.0% | Reduced |
| Algert Global LLC | 26,670 | $145.4K | 0.01% | −17,800−40.0% | Reduced |
| Russell Investments Group, Ltd. | 26,653 | $145.3K | 0.00% | −1,573−5.6% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 25,001 | $136.3K | 0.00% | 00.0% | Unchanged |
| Caligan Partners LP | 23,321 | $127.1K | 0.07% | +23,321 | New |
| Susquehanna International Group, LLP | 22,710 | $123.8K | 0.00% | −26,309−53.7% | Reduced |
| Man Group plc | – | $120.2K | 0.00% | – | – |
| American Century Companies Inc | 21,761 | $118.6K | 0.00% | +8,588+65.2% | Added |
| Exchange Traded Concepts, LLC | 20,971 | $114.3K | 0.00% | +4,763+29.4% | Added |
| MetLife Investment Management | 20,086 | $109.5K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 19,533 | $106.5K | 0.00% | −1,534−7.3% | Reduced |
| Jump Financial, LLC | 18,800 | $102.5K | 0.00% | −20,887−52.6% | Reduced |
| American International Group, Inc. | 18,361 | $100.1K | 0.00% | +653+3.7% | Added |
| Price T Rowe Associates Inc | 18,282 | $100.0K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 18,349 | $100.0K | 0.00% | +18,349 | New |
| Deutsche Bank AG | 18,155 | $98.9K | 0.00% | 00.0% | Unchanged |
| Public Employees Retirement System of Ohio | 16,100 | $88.0K | 0.00% | −2,000−11.0% | Reduced |
| Franklin Resources Inc | 15,679 | $85.5K | 0.00% | −21,787−58.2% | Reduced |
| Manufacturers Life Insurance Company, The | 15,582 | $84.9K | 0.00% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 15,546 | $84.7K | 0.00% | +15,546 | New |
| Cim Investment Mangement Inc | 15,313 | $83.5K | 0.03% | 00.0% | Unchanged |
| Principal Financial Group Inc | 15,219 | $82.9K | 0.00% | +1,497+10.9% | Added |
| State Board of Administration of Florida Retirement System | 14,596 | $79.5K | 0.00% | +290+2.0% | Added |
| ExodusPoint Capital Management, LP | 14,126 | $77.0K | 0.00% | −12,374−46.7% | Reduced |
| BNP Paribas Arbitrage, SA | 13,493 | $73.5K | 0.00% | +3,896+40.6% | Added |
| Lazard Asset Management LLC | 12,384 | $67.0K | 0.00% | +12,384 | New |
| Corton Capital Inc. | 12,244 | $66.7K | 0.03% | −994−7.5% | Reduced |
| Invesco Ltd. | 11,784 | $64.2K | 0.00% | 00.0% | Unchanged |
| Avestar Capital, LLC | 10,000 | $54.5K | 0.01% | 00.0% | Unchanged |
| Wells Fargo & Company | 8,231 | $44.9K | 0.00% | −6,387−43.7% | Reduced |
| California State Teachers Retirement System | 8,118 | $44.2K | 0.00% | −4,120−33.7% | Reduced |
| Allspring Global Investments Holdings, LLC | 6,484 | $35.3K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 6,302 | $34.3K | 0.00% | −1,015−13.9% | Reduced |
| New York State Common Retirement Fund | 6,270 | $34.2K | 0.00% | +97+1.6% | Added |
| Royal Bank of Canada | 5,467 | $30.0K | 0.00% | +2,332+74.4% | Added |
| Amalgamated Bank | 4,483 | $24.0K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 3,371 | $18.4K | 0.00% | −550−14.0% | Reduced |
| Ameritas Investment Partners, Inc. | 2,645 | $14.4K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 2,055 | $11.2K | 0.00% | 00.0% | Unchanged |
| Strengthening Families & Communities, LLC | 1,650 | $9.00K | 0.00% | +1,650 | New |
| Tower Research Capital LLC (TRC) | 1,501 | $8.18K | 0.00% | +88+6.2% | Added |
| Federated Hermes, Inc. | 925 | $5.04K | 0.00% | +925 | New |
| Simplex Trading, LLC | 813 | $4.00K | 0.00% | +765+1,593.8% | Added |
| HighMark Wealth Management LLC | 220 | $1.20K | 0.00% | 00.0% | Unchanged |
| Cutler Group LP | 200 | $1.00K | 0.00% | +200 | New |
| IFP Advisors, Inc | 103 | $561 | 0.00% | 00.0% | Unchanged |
| Eagle Bay Advisors LLC | 50 | $273 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 40 | $218 | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 19 | $103 | 0.00% | −10,936−99.8% | Reduced |
| State of Wyoming | 15 | $82 | 0.00% | +15 | New |
| CWM, LLC | 65 | $0 | 0.00% | +65 | New |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −40,195−100.0% | Sold out |