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