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, Q4 2021
Institutional positions in Y-mAbs Therapeutics, Inc. as of Dec 31, 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
- +1 vs. Q3 2021
- Shares held
- 25.7M
- −507.1K (−1.9%) vs. Q3 2021
- Total value
- $417.1M
- −$331.8M (−44.3%) vs. Q3 2021
- New holders
- 16
- 38 more added
- Sold out
- 15
- 28 more reduced
1 institution that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Parallel Advisors, LLC | 16 | $0 | 0.00% | +16 | New |
| Covestor Ltd | 16 | $0 | 0.00% | +16 | New |
| Eagle Bay Advisors LLC | 50 | $1.00K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 83 | $1.00K | 0.00% | +83 | New |
| Lindbrook Capital, LLC | 51 | $1.00K | 0.00% | +51 | New |
| Daiwa Securities Group Inc. | 149 | $2.00K | 0.00% | 00.0% | Unchanged |
| TCI Wealth Advisors, Inc. | 249 | $4.00K | 0.00% | +160+179.8% | Added |
| Macquarie Group Ltd | 471 | $8.00K | 0.00% | 00.0% | Unchanged |
| Cassady Schiller Wealth Management, LLC | 525 | $9.00K | 0.01% | +525 | New |
| Migdal Insurance & Financial Holdings Ltd. | 730 | $12.0K | 0.00% | −990−57.6% | Reduced |
| HighMark Wealth Management LLC | 870 | $14.0K | 0.01% | −233−21.1% | Reduced |
| US Bancorp | 1,313 | $21.0K | 0.00% | +1,313 | New |
| Great West Life Assurance Co | 1,443 | $23.0K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,868 | $30.0K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 2,645 | $43.0K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 2,700 | $43.0K | 0.00% | +2,100+350.0% | Added |
| Tower Research Capital LLC (TRC) | 3,175 | $52.0K | 0.00% | +932+41.6% | Added |
| Advisor Group Holdings, Inc. | 4,159 | $67.0K | 0.00% | +4,159 | New |
| Ensign Peak Advisors, Inc | 4,340 | $70.0K | 0.00% | −1,703−28.2% | Reduced |
| BNP Paribas Arbitrage, SA | 9,100 | $147.5K | 0.00% | +2,651+41.1% | Added |
| Metropolitan Life Insurance Co | 9,573 | $155.2K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 9,999 | $162.0K | 0.00% | +85+0.9% | Added |
| Erste Asset Management GmbH | 10,000 | $168.9K | 0.00% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 11,156 | $181.0K | 0.00% | +137+1.2% | Added |
| Millennium Management LLC | 12,613 | $204.0K | 0.00% | +12,613 | New |
| Royal Bank of Canada | 12,723 | $206.0K | 0.00% | −2,837−18.2% | Reduced |
| DnB Asset Management AS | 13,367 | $216.7K | 0.00% | +801+6.4% | Added |
| MetLife Investment Management | 13,415 | $217.5K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 13,661 | $221.0K | 0.00% | −41−0.3% | Reduced |
| DekaBank Deutsche Girozentrale | 13,100 | $221.0K | 0.00% | +400+3.1% | Added |
| ProShare Advisors LLC | 13,779 | $224.0K | 0.00% | −8−0.1% | Reduced |
| SG Americas Securities, LLC | 15,020 | $243.0K | 0.00% | −10,790−41.8% | Reduced |
| Invesco Ltd. | 15,033 | $244.0K | 0.00% | −1,396−8.5% | Reduced |
| Allspring Global Investments Holdings, LLC | 15,063 | $244.0K | 0.00% | +15,063 | New |
| Parametric Portfolio Associates LLC | 15,134 | $245.0K | 0.00% | +4,083+36.9% | Added |
| UBS Asset Management Americas Inc | 15,600 | $252.9K | 0.00% | −7,819−33.4% | Reduced |
| Qube Research & Technologies Ltd | 15,577 | $253.0K | 0.00% | +15,577 | New |
| Walleye Capital LLC | 17,188 | $279.0K | 0.01% | +17,188 | New |
| Credit Suisse AG | 18,066 | $294.0K | 0.00% | +1,124+6.6% | Added |
| Cna Financial Corp | 18,230 | $296.0K | 0.08% | +4,470+32.5% | Added |
| American International Group, Inc. | 18,572 | $301.0K | 0.00% | −556−2.9% | Reduced |
| Ergoteles LLC | 18,566 | $301.0K | 0.01% | +18,566 | New |
| Manufacturers Life Insurance Company, The | 19,220 | $312.0K | 0.00% | +364+1.9% | Added |
| Virtus ETF Advisers LLC | 23,646 | $383.0K | 0.14% | +11,068+88.0% | Added |
| Two Sigma Advisers, LP | 24,400 | $396.0K | 0.00% | −24,600−50.2% | Reduced |
| Brandywine Global Investment Management, LLC | 24,400 | $396.0K | 0.00% | −8,137−25.0% | Reduced |
| Deutsche Bank AG | 24,402 | $396.0K | 0.00% | +1,545+6.8% | Added |
| Teachers Retirement System of the State of Kentucky | 25,674 | $416.0K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 28,965 | $470.0K | 0.00% | −13,158−31.2% | Reduced |
| Allianz Asset Management GmbH | 29,754 | $482.0K | 0.00% | −7,600−20.3% | Reduced |
| Susquehanna International Group, LLP | 30,280 | $491.0K | 0.00% | +3,701+13.9% | Added |
| SEI Investments Co | 32,950 | $534.0K | 0.00% | +7,859+31.3% | Added |
| Rhumbline Advisers | 36,417 | $590.0K | 0.00% | −605−1.6% | Reduced |
| JPMorgan Chase & Co | 37,570 | $610.0K | 0.00% | +1,690+4.7% | Added |
| Two Sigma Investments, LP | 38,792 | $629.0K | 0.00% | +38,792 | New |
| State of Wisconsin Investment Board | 41,000 | $665.0K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 41,126 | $667.0K | 0.00% | +894+2.2% | Added |
| Jane Street Group, LLC | 44,673 | $724.0K | 0.00% | +26,362+144.0% | Added |
| Alps Advisors Inc | 50,503 | $819.0K | 0.01% | −2,906−5.4% | Reduced |
| Swiss National Bank | 57,300 | $929.0K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 59,978 | $972.0K | 0.00% | +42,509+243.3% | Added |
| Russell Investments Group, Ltd. | 64,404 | $1.04M | 0.00% | +28,124+77.5% | Added |
| UBS Group AG | 64,449 | $1.04M | 0.00% | +38,890+152.2% | Added |
| Citigroup Inc | 67,755 | $1.10M | 0.00% | +35,999+113.4% | Added |
| Gsa Capital Partners LLP | 69,311 | $1.12M | 0.14% | +69,311 | New |
| Rafferty Asset Management, LLC | 76,576 | $1.24M | 0.01% | +35,991+88.7% | Added |
| Bank of America Corp | 81,925 | $1.33M | 0.00% | +1,661+2.1% | Added |
| Rice Hall James & Associates, LLC | 84,395 | $1.37M | 0.05% | −14,896−15.0% | Reduced |
| Renaissance Technologies LLC | 98,600 | $1.60M | 0.00% | +98,600 | New |
| Nuveen Asset Management, LLC | 105,509 | $1.62M | 0.00% | −34,704−24.8% | Reduced |
| Bank of New York Mellon Corp | 103,345 | $1.68M | 0.00% | −289−0.3% | Reduced |
| Citadel Advisors LLC | 125,698 | $2.04M | 0.00% | +21,183+20.3% | Added |
| Candriam Luxembourg S.C.A. | 183,692 | $2.98M | 0.02% | +5,511+3.1% | Added |
| Memorial Sloan Kettering Cancer Center | 191,176 | $3.10M | 1.95% | −25,740−11.9% | Reduced |
| Dimensional Fund Advisors LP | 191,802 | $3.11M | 0.00% | +66,280+52.8% | Added |
| Goldman Sachs Group Inc | 217,361 | $3.52M | 0.00% | −595,994−73.3% | Reduced |
| Ashford Capital Management Inc | 226,180 | $3.67M | 0.37% | −225,930−50.0% | Reduced |
| New York State Common Retirement Fund | 236,284 | $3.83M | 0.00% | −65,714−21.8% | Reduced |
| Charles Schwab Investment Management Inc | 244,744 | $3.97M | 0.00% | +5,125+2.1% | Added |
| Logos Global Management LP | 250,000 | $4.05M | 0.42% | +250,000 | New |
| Morgan Stanley | 290,384 | $4.71M | 0.00% | +206,378+245.7% | Added |
| Cormorant Asset Management, LP | 300,000 | $4.86M | 0.29% | −200,000−40.0% | Reduced |
| Soleus Capital Management, L.P. | 310,494 | $5.03M | 0.68% | +44,794+16.9% | Added |
| Northern Trust Corp | 343,987 | $5.58M | 0.00% | −3,047−0.9% | Reduced |
| Lombard Odier Asset Management (Switzerland) SA | 385,440 | $6.25M | 0.40% | +32,601+9.2% | Added |
| Artal Group S.A. | 400,000 | $6.48M | 0.19% | 00.0% | Unchanged |
| MPM Oncology Impact Management LP | 446,457 | $7.24M | 1.32% | −6,513−1.4% | Reduced |
| Geode Capital Management, LLC | 620,977 | $10.1M | 0.00% | +43,866+7.6% | Added |
| Polar Capital Holdings Plc | 1,377,671 | $22.3M | 0.12% | +222,710+19.3% | Added |
| State Street Corp | 1,456,670 | $23.6M | 0.00% | +124,727+9.4% | Added |
| FMR LLC | 1,525,787 | $24.7M | 0.00% | 00.0% | Unchanged |
| Artisan Partners Limited Partnership | 1,581,845 | $25.6M | 0.03% | −106,711−6.3% | Reduced |
| Vanguard Group Inc | 1,817,074 | $29.5M | 0.00% | +13,150+0.7% | Added |
| Alliancebernstein L.P. | 1,942,334 | $31.5M | 0.01% | +524,525+37.0% | Added |
| Sofinnova Investments, Inc. | 2,194,278 | $35.6M | 2.28% | 00.0% | Unchanged |
| BlackRock Inc. | 2,767,360 | $44.9M | 0.00% | +30,500+1.1% | Added |
| Wellington Management Group LLP | 4,271,382 | $69.2M | 0.01% | −6,715−0.2% | Reduced |
| First Light Asset Management, LLC | 0 | $0 | 0.00% | −577,663−100.0% | Sold out |
| Oracle Investment Management Inc | 0 | $0 | 0.00% | −315,642−100.0% | Sold out |
| Brookfield Asset Management Inc. | 0 | $0 | 0.00% | −179,236−100.0% | Sold out |