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 2023
Institutional positions in Y-mAbs Therapeutics, Inc. as of Jun 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
- 95
- +9 vs. Q1 2023
- Shares held
- 19.5M
- +515.2K (+2.7%) vs. Q1 2023
- Total value
- $132.4M
- +$37.0M (+38.8%) vs. Q1 2023
- New holders
- 19
- 32 more added
- Sold out
- 10
- 30 more reduced
Compare with Q1 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, Q2 2023
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 2,531,779 | $17.2M | 0.00% | +170,686+7.2% | Added |
| Vanguard Group Inc | 2,227,009 | $15.1M | 0.00% | −53,993−2.4% | Reduced |
| Sofinnova Investments, Inc. | 2,194,278 | $14.9M | 0.98% | 00.0% | Unchanged |
| Polar Capital Holdings Plc | 2,103,298 | $14.3M | 0.10% | +111,369+5.6% | Added |
| D. E. Shaw & Co., Inc. | 1,275,397 | $8.66M | 0.01% | +484,441+61.2% | Added |
| State Street Corp | 744,607 | $5.06M | 0.00% | −18,223−2.4% | Reduced |
| Geode Capital Management, LLC | 711,664 | $4.83M | 0.00% | +49,019+7.4% | Added |
| Acadian Asset Management LLC | 654,088 | $4.44M | 0.02% | +254,506+63.7% | Added |
| Jacobs Levy Equity Management, Inc | 564,531 | $3.83M | 0.02% | +240,634+74.3% | Added |
| Nuveen Asset Management, LLC | 424,831 | $2.88M | 0.00% | +91,439+27.4% | Added |
| Goldman Sachs Group Inc | 402,651 | $2.73M | 0.00% | +211,860+111.0% | Added |
| Point72 Asset Management, L.P. | 383,587 | $2.60M | 0.01% | +26,369+7.4% | Added |
| Millennium Management LLC | 329,569 | $2.24M | 0.00% | −293,522−47.1% | Reduced |
| Northern Trust Corp | 328,522 | $2.23M | 0.00% | +26,193+8.7% | Added |
| Los Angeles Capital Management LLC | 270,926 | $1.84M | 0.01% | +270,926 | New |
| Charles Schwab Investment Management Inc | 257,095 | $1.75M | 0.00% | +21,455+9.1% | Added |
| Prudential Financial Inc | 249,950 | $1.70M | 0.00% | +175,900+237.5% | Added |
| Renaissance Technologies LLC | 216,200 | $1.47M | 0.00% | +128,800+147.4% | Added |
| Two Sigma Advisers, LP | 210,200 | $1.43M | 0.00% | +1,000+0.5% | Added |
| AQR Capital Management LLC | 199,500 | $1.35M | 0.00% | −279,793−58.4% | Reduced |
| Memorial Sloan Kettering Cancer Center | 191,176 | $1.30M | 4.10% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 185,833 | $1.26M | 0.01% | +11,719+6.7% | Added |
| Alliancebernstein L.P. | 166,989 | $1.13M | 0.00% | +11,350+7.3% | Added |
| Two Sigma Investments, LP | 164,774 | $1.12M | 0.00% | +9,147+5.9% | Added |
| Soleus Capital Management, L.P. | 157,182 | $1.07M | 0.12% | +70,000+80.3% | Added |
| Cubist Systematic Strategies, LLC | 138,548 | $940.7K | 0.01% | +81,523+143.0% | Added |
| Morgan Stanley | 130,622 | $886.9K | 0.00% | −119,827−47.8% | Reduced |
| Dimensional Fund Advisors LP | 129,498 | $879.3K | 0.00% | +20,066+18.3% | Added |
| Marshall Wace, LLP | 127,668 | $866.9K | 0.00% | +127,668 | New |
| Bank of New York Mellon Corp | 118,286 | $803.2K | 0.00% | +5,755+5.1% | Added |
| State of Wisconsin Investment Board | 100,803 | $684.5K | 0.00% | −49,997−33.2% | Reduced |
| Rice Hall James & Associates, LLC | 93,022 | $631.6K | 0.04% | +3,542+4.0% | Added |
| Victory Capital Management Inc | 91,180 | $619.1K | 0.00% | +91,180 | New |
| Denali Advisors LLC | 85,900 | $583.3K | 0.20% | +77,600+934.9% | Added |
| New York Life Investment Management LLC | 82,262 | $558.6K | 0.01% | −63,546−43.6% | Reduced |
| Bridgeway Capital Management, LLC | 75,000 | $509.3K | 0.01% | 00.0% | Unchanged |
| STRS Ohio | 74,100 | $503.0K | 0.00% | −74,700−50.2% | Reduced |
| Rhumbline Advisers | 52,789 | $358.4K | 0.00% | +4,155+8.5% | Added |
| Susquehanna International Group, LLP | 49,019 | $332.8K | 0.00% | +186+0.4% | Added |
| XTX Topco Ltd | 45,261 | $307.3K | 0.06% | −118,016−72.3% | Reduced |
| Gsa Capital Partners LLP | 44,534 | $302.0K | 0.03% | −116,975−72.4% | Reduced |
| Algert Global LLC | 44,470 | $302.0K | 0.01% | +18,650+72.2% | Added |
| Susquehanna Fundamental Investments, LLC | 40,960 | $278.1K | 0.01% | 00.0% | Unchanged |
| Jane Street Group, LLC | 40,195 | $272.9K | 0.00% | +15,930+65.7% | Added |
| Jump Financial, LLC | 39,687 | $269.5K | 0.01% | −1,213−3.0% | Reduced |
| JPMorgan Chase & Co | 38,523 | $261.6K | 0.00% | −156,912−80.3% | Reduced |
| Franklin Resources Inc | 37,466 | $254.4K | 0.00% | +37,466 | New |
| FMR LLC | 36,972 | $251.0K | 0.00% | +35,662+2,722.3% | Added |
| Bank of America Corp | 35,716 | $242.5K | 0.00% | −49,739−58.2% | Reduced |
| Voya Investment Management LLC | 34,346 | $233.2K | 0.00% | −10,893−24.1% | Reduced |
| Citadel Advisors LLC | 31,513 | $214.0K | 0.00% | −274,197−89.7% | Reduced |
| Ameriprise Financial Inc | 31,181 | $211.7K | 0.00% | +31,181 | New |
| Russell Investments Group, Ltd. | 28,226 | $191.7K | 0.00% | +16,414+139.0% | Added |
| ExodusPoint Capital Management, LP | 26,500 | $180.0K | 0.00% | +26,500 | New |
| Fox Run Management, L.L.C. | 26,151 | $177.6K | 0.05% | +26,151 | New |
| Mirae Asset Global Investments Co., Ltd. | 25,001 | $169.8K | 0.00% | +25,001 | New |
| Massachusetts Financial Services Co | 22,930 | $155.7K | 0.00% | +22,930 | New |
| UBS Group AG | 21,067 | $143.0K | 0.00% | −55,196−72.4% | Reduced |
| MetLife Investment Management | 20,086 | $136.4K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 18,282 | $125.0K | 0.00% | −6,441−26.1% | Reduced |
| Deutsche Bank AG | 18,155 | $123.3K | 0.00% | −5,468−23.1% | Reduced |
| Public Employees Retirement System of Ohio | 18,100 | $123.0K | 0.00% | +18,100 | New |
| American International Group, Inc. | 17,708 | $120.2K | 0.00% | −12−0.1% | Reduced |
| Exchange Traded Concepts, LLC | 16,208 | $110.1K | 0.00% | +16,208 | New |
| Manufacturers Life Insurance Company, The | 15,582 | $105.8K | 0.00% | −532−3.3% | Reduced |
| Man Group plc | 15,444 | $104.9K | 0.00% | – | – |
| Cim Investment Mangement Inc | 15,313 | $104.0K | 0.04% | 00.0% | Unchanged |
| Trexquant Investment LP | 14,800 | $100.5K | 0.00% | +14,800 | New |
| Wells Fargo & Company | 14,618 | $99.3K | 0.00% | +7,549+106.8% | Added |
| State Board of Administration of Florida Retirement System | 14,306 | $97.1K | 0.00% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 14,100 | $95.7K | 0.00% | +14,100 | New |
| Principal Financial Group Inc | 13,722 | $93.2K | 0.00% | +2,770+25.3% | Added |
| Corton Capital Inc. | 13,238 | $89.9K | 0.04% | +13,238 | New |
| American Century Companies Inc | 13,173 | $89.4K | 0.00% | +13,173 | New |
| California State Teachers Retirement System | 12,238 | $83.1K | 0.00% | −1,412−10.3% | Reduced |
| Invesco Ltd. | 11,784 | $80.0K | 0.00% | −1,746−12.9% | Reduced |
| Citigroup Inc | 10,955 | $74.4K | 0.00% | −35,887−76.6% | Reduced |
| Graham Capital Management, L.P. | 10,075 | $68.4K | 0.00% | +10,075 | New |
| Avestar Capital, LLC | 10,000 | $67.9K | 0.01% | +10,000 | New |
| BNP Paribas Arbitrage, SA | 9,597 | $65.2K | 0.00% | −25,907−73.0% | Reduced |
| Barclays PLC | 7,317 | $49.7K | 0.00% | −40,092−84.6% | Reduced |
| Allspring Global Investments Holdings, LLC | 6,484 | $44.0K | 0.00% | −8,064−55.4% | Reduced |
| New York State Common Retirement Fund | 6,173 | $41.9K | 0.00% | −52−0.8% | Reduced |
| Amalgamated Bank | 4,483 | $30.0K | 0.00% | −566−11.2% | Reduced |
| Legal & General Group Plc | 3,921 | $26.6K | 0.00% | −509−11.5% | Reduced |
| Royal Bank of Canada | 3,135 | $21.0K | 0.00% | +1,056+50.8% | Added |
| Ameritas Investment Partners, Inc. | 2,645 | $18.0K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 2,055 | $14.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,413 | $9.59K | 0.00% | −4,486−76.0% | Reduced |
| Quantbot Technologies LP | 900 | $6.11K | 0.00% | +900 | New |
| HighMark Wealth Management LLC | 220 | $1.49K | 0.00% | 00.0% | Unchanged |
| Eagle Bay Advisors LLC | 50 | $340 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 40 | $272 | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 48 | $0 | 0.00% | +48 | New |
| IFP Advisors, Inc | 103 | – | – | 00.0% | Unchanged |
| AIGH Capital Management LLC | 0 | $0 | 0.00% | −428,412−100.0% | Sold out |
| Worth Venture Partners, LLC | 0 | $0 | 0.00% | −104,487−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −63,956−100.0% | Sold out |
| Cornercap Investment Counsel Inc | 0 | $0 | 0.00% | −48,233−100.0% | Sold out |
| Caxton Associates LP | 0 | $0 | 0.00% | −43,046−100.0% | Sold out |