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