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 2021
Institutional positions in Y-mAbs Therapeutics, Inc. as of Sep 30, 2021. 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
- 97
- −3 vs. Q2 2021
- Shares held
- 26.2M
- +102.8K (+0.4%) vs. Q2 2021
- Total value
- $749.0M
- −$137.9M (−15.5%) vs. Q2 2021
- New holders
- 10
- 41 more added
- Sold out
- 13
- 29 more reduced
Compare with Q2 2021: 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 2021
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Eagle Bay Advisors LLC | 50 | $1.00K | 0.00% | +50 | New |
| TCI Wealth Advisors, Inc. | 89 | $3.00K | 0.00% | +27+43.5% | Added |
| Daiwa Securities Group Inc. | 149 | $4.00K | 0.00% | +73+96.1% | Added |
| Macquarie Group Ltd | 471 | $13.0K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 600 | $17.0K | 0.00% | +600 | New |
| Penserra Capital Management LLC | 995 | $28.0K | 0.00% | +5+0.5% | Added |
| Point72 Hong Kong Ltd | 995 | $28.0K | 0.00% | +995 | New |
| HighMark Wealth Management LLC | 1,103 | $31.0K | 0.02% | −178−13.9% | Reduced |
| Great West Life Assurance Co | 1,443 | $41.0K | 0.00% | 00.0% | Unchanged |
| Migdal Insurance & Financial Holdings Ltd. | 1,720 | $49.0K | 0.00% | +1,720 | New |
| Lazard Asset Management LLC | 1,801 | $51.0K | 0.00% | +1,801 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,868 | $53.0K | 0.00% | +1,868 | New |
| Tower Research Capital LLC (TRC) | 2,243 | $64.0K | 0.00% | +448+25.0% | Added |
| First Mercantile Trust Co | 2,350 | $67.0K | 0.01% | −95−3.9% | Reduced |
| Ameritas Investment Partners, Inc. | 2,645 | $75.0K | 0.00% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 6,043 | $172.0K | 0.00% | −16,555−73.3% | Reduced |
| BNP Paribas Arbitrage, SA | 6,449 | $184.1K | 0.00% | +4,921+322.1% | Added |
| Arizona State Retirement System | 7,121 | $203.0K | 0.00% | +56+0.8% | Added |
| Boothbay Fund Management, LLC | 7,682 | $219.0K | 0.01% | −253−3.2% | Reduced |
| Allstate Corp | 9,394 | $268.0K | 0.01% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 9,573 | $273.2K | 0.00% | +140+1.5% | Added |
| Erste Asset Management GmbH | 10,000 | $279.2K | 0.01% | 00.0% | Unchanged |
| Legal & General Group Plc | 9,914 | $282.0K | 0.00% | +5,083+105.2% | Added |
| State Board of Administration of Florida Retirement System | 11,019 | $314.0K | 0.00% | 00.0% | Unchanged |
| Parametric Portfolio Associates LLC | 11,051 | $315.0K | 0.00% | −36,423−76.7% | Reduced |
| DekaBank Deutsche Girozentrale | 12,700 | $355.0K | 0.00% | 00.0% | Unchanged |
| DnB Asset Management AS | 12,566 | $358.6K | 0.00% | −249−1.9% | Reduced |
| Virtus ETF Advisers LLC | 12,578 | $359.0K | 0.16% | −1,150−8.4% | Reduced |
| MetLife Investment Management | 13,415 | $382.9K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 13,702 | $391.0K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 13,787 | $393.0K | 0.00% | −3,107−18.4% | Reduced |
| Cna Financial Corp | 13,760 | $393.0K | 0.11% | +470+3.5% | Added |
| Cubist Systematic Strategies, LLC | 14,884 | $425.0K | 0.01% | +14,884 | New |
| Royal Bank of Canada | 15,560 | $444.0K | 0.00% | +690+4.6% | Added |
| Principal Financial Group Inc | 15,971 | $455.0K | 0.00% | +5,935+59.1% | Added |
| Invesco Ltd. | 16,429 | $469.0K | 0.00% | +2,563+18.5% | Added |
| Credit Suisse AG | 16,942 | $483.0K | 0.00% | +1,375+8.8% | Added |
| ExodusPoint Capital Management, LP | 17,399 | $497.0K | 0.01% | +399+2.3% | Added |
| Barclays PLC | 17,469 | $498.0K | 0.00% | +10,615+154.9% | Added |
| Jane Street Group, LLC | 18,311 | $523.0K | 0.00% | +18,311 | New |
| Manufacturers Life Insurance Company, The | 18,856 | $538.0K | 0.00% | −1,341−6.6% | Reduced |
| American International Group, Inc. | 19,128 | $546.0K | 0.00% | −454−2.3% | Reduced |
| Deutsche Bank AG | 22,857 | $653.0K | 0.00% | −5,142−18.4% | Reduced |
| UBS Asset Management Americas Inc | 23,419 | $668.4K | 0.00% | 00.0% | Unchanged |
| SEI Investments Co | 25,091 | $716.0K | 0.00% | +5,140+25.8% | Added |
| UBS Group AG | 25,559 | $729.0K | 0.00% | +24,207+1,790.5% | Added |
| Teachers Retirement System of the State of Kentucky | 25,674 | $733.0K | 0.01% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 25,810 | $737.0K | 0.00% | +374+1.5% | Added |
| Susquehanna International Group, LLP | 26,579 | $759.0K | 0.00% | +10,632+66.7% | Added |
| Citigroup Inc | 31,756 | $906.0K | 0.00% | −41,546−56.7% | Reduced |
| Brandywine Global Investment Management, LLC | 32,537 | $929.0K | 0.01% | +32,537 | New |
| JPMorgan Chase & Co | 35,880 | $1.02M | 0.00% | +461+1.3% | Added |
| Russell Investments Group, Ltd. | 36,280 | $1.03M | 0.00% | +33,304+1,119.1% | Added |
| Rhumbline Advisers | 37,022 | $1.06M | 0.00% | +2,001+5.7% | Added |
| Allianz Asset Management GmbH | 37,354 | $1.07M | 0.00% | +83+0.2% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 37,900 | $1.08M | 0.01% | +36,900+3,690.0% | Added |
| Vident Investment Advisory, LLC | 38,835 | $1.11M | 0.03% | −2,774−6.7% | Reduced |
| California State Teachers Retirement System | 40,232 | $1.15M | 0.00% | −7,945−16.5% | Reduced |
| Rafferty Asset Management, LLC | 40,585 | $1.16M | 0.01% | −5,120−11.2% | Reduced |
| State of Wisconsin Investment Board | 41,000 | $1.17M | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 42,123 | $1.20M | 0.00% | +25,523+153.8% | Added |
| Maven Securities LTD | 48,759 | $1.39M | 0.16% | −54,041−52.6% | Reduced |
| Two Sigma Advisers, LP | 49,000 | $1.40M | 0.00% | −86,300−63.8% | Reduced |
| Alps Advisors Inc | 53,409 | $1.52M | 0.01% | −3,977−6.9% | Reduced |
| Swiss National Bank | 57,300 | $1.64M | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 80,264 | $2.29M | 0.00% | −2,306−2.8% | Reduced |
| Morgan Stanley | 84,006 | $2.40M | 0.00% | −8,160−8.9% | Reduced |
| Rice Hall James & Associates, LLC | 99,291 | $2.83M | 0.10% | +2,517+2.6% | Added |
| Bank of New York Mellon Corp | 103,634 | $2.96M | 0.00% | +12,008+13.1% | Added |
| Citadel Advisors LLC | 104,515 | $2.98M | 0.00% | −70,670−40.3% | Reduced |
| Dimensional Fund Advisors LP | 125,522 | $3.58M | 0.00% | +125,522 | New |
| Nuveen Asset Management, LLC | 140,213 | $4.00M | 0.00% | −21,412−13.2% | Reduced |
| Candriam Luxembourg S.C.A. | 178,181 | $5.08M | 0.03% | 00.0% | Unchanged |
| Brookfield Asset Management Inc. | 179,236 | $5.12M | 0.02% | +12,582+7.5% | Added |
| Memorial Sloan Kettering Cancer Center | 216,916 | $6.19M | 3.86% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 239,619 | $6.84M | 0.00% | +37,500+18.6% | Added |
| Soleus Capital Management, L.P. | 265,700 | $7.58M | 1.18% | +121,400+84.1% | Added |
| New York State Common Retirement Fund | 301,998 | $8.62M | 0.01% | +60,228+24.9% | Added |
| Oracle Investment Management Inc | 315,642 | $9.01M | 1.13% | +15,000+5.0% | Added |
| Northern Trust Corp | 347,034 | $9.90M | 0.00% | +628+0.2% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 352,839 | $10.1M | 0.63% | +32,807+10.3% | Added |
| Artal Group S.A. | 400,000 | $11.4M | 0.28% | 00.0% | Unchanged |
| Ashford Capital Management Inc | 452,110 | $12.9M | 1.17% | −131,398−22.5% | Reduced |
| MPM Oncology Impact Management LP | 452,970 | $12.9M | 2.01% | +115,679+34.3% | Added |
| Cormorant Asset Management, LP | 500,000 | $14.3M | 0.58% | −300,000−37.5% | Reduced |
| Geode Capital Management, LLC | 577,111 | $16.5M | 0.00% | +26,064+4.7% | Added |
| First Light Asset Management, LLC | 577,663 | $16.5M | 1.09% | −372,529−39.2% | Reduced |
| Goldman Sachs Group Inc | 813,355 | $23.2M | 0.01% | −7,127−0.9% | Reduced |
| Polar Capital Holdings Plc | 1,154,961 | $33.0M | 0.18% | +569,040+97.1% | Added |
| State Street Corp | 1,331,943 | $38.0M | 0.00% | −57,568−4.1% | Reduced |
| Alliancebernstein L.P. | 1,417,809 | $40.5M | 0.02% | +69,213+5.1% | Added |
| FMR LLC | 1,525,787 | $43.5M | 0.00% | −23,200−1.5% | Reduced |
| Artisan Partners Limited Partnership | 1,688,556 | $48.2M | 0.06% | +370,277+28.1% | Added |
| Vanguard Group Inc | 1,803,924 | $51.5M | 0.00% | +168,669+10.3% | Added |
| Sofinnova Investments, Inc. | 2,194,278 | $62.6M | 4.01% | 00.0% | Unchanged |
| BlackRock Inc. | 2,736,860 | $78.1M | 0.00% | +33,169+1.2% | Added |
| Wellington Management Group LLP | 4,278,097 | $122.1M | 0.02% | −170,513−3.8% | Reduced |
| Tekla Capital Management LLC | 0 | $0 | 0.00% | −197,820−100.0% | Sold out |
| Burrage Capital Management LLC | 0 | $0 | 0.00% | −114,454−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −46,228−100.0% | Sold out |