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, Q1 2022
Institutional positions in Y-mAbs Therapeutics, Inc. as of Mar 31, 2022. 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
- 88
- −9 vs. Q4 2021
- Shares held
- 25.3M
- −431.8K (−1.7%) vs. Q4 2021
- Total value
- $300.6M
- −$116.5M (−27.9%) vs. Q4 2021
- New holders
- 15
- 28 more added
- Sold out
- 24
- 31 more reduced
Compare with Q4 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, Q1 2022
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Alliancebernstein L.P. | 2,969,159 | $35.3M | 0.01% | +1,026,825+52.9% | Added |
| BlackRock Inc. | 2,945,094 | $35.0M | 0.00% | +177,734+6.4% | Added |
| Polar Capital Holdings Plc | 2,877,671 | $34.2M | 0.20% | +1,500,000+108.9% | Added |
| State Street Corp | 2,308,782 | $27.4M | 0.00% | +852,112+58.5% | Added |
| Sofinnova Investments, Inc. | 2,194,278 | $26.1M | 2.19% | 00.0% | Unchanged |
| FMR LLC | 1,970,268 | $23.4M | 0.00% | +444,481+29.1% | Added |
| Wellington Management Group LLP | 1,910,578 | $22.7M | 0.00% | −2,360,804−55.3% | Reduced |
| Vanguard Group Inc | 1,794,510 | $21.3M | 0.00% | −22,564−1.2% | Reduced |
| Geode Capital Management, LLC | 583,529 | $6.93M | 0.00% | −37,448−6.0% | Reduced |
| Morgan Stanley | 541,561 | $6.43M | 0.00% | +251,177+86.5% | Added |
| MPM Oncology Impact Management LP | 443,702 | $5.27M | 1.41% | −2,755−0.6% | Reduced |
| Artal Group S.A. | 400,000 | $4.75M | 0.20% | 00.0% | Unchanged |
| Bank of America Corp | 398,823 | $4.74M | 0.00% | +316,898+386.8% | Added |
| Northern Trust Corp | 327,253 | $3.89M | 0.00% | −16,734−4.9% | Reduced |
| Deutsche Bank AG | 305,042 | $3.62M | 0.00% | +280,640+1,150.1% | Added |
| Soleus Capital Management, L.P. | 238,982 | $2.84M | 0.44% | −71,512−23.0% | Reduced |
| Charles Schwab Investment Management Inc | 233,756 | $2.78M | 0.00% | −10,988−4.5% | Reduced |
| Lombard Odier Asset Management (Switzerland) SA | 221,774 | $2.63M | 0.21% | −163,666−42.5% | Reduced |
| Memorial Sloan Kettering Cancer Center | 191,176 | $2.27M | 2.63% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 183,368 | $2.18M | 0.00% | −8,434−4.4% | Reduced |
| Candriam Luxembourg S.C.A. | 172,584 | $2.05M | 0.01% | −11,108−6.0% | Reduced |
| Cormorant Asset Management, LP | 150,000 | $1.78M | 0.14% | −150,000−50.0% | Reduced |
| Rafferty Asset Management, LLC | 140,307 | $1.67M | 0.01% | +63,731+83.2% | Added |
| D. E. Shaw & Co., Inc. | 138,657 | $1.65M | 0.00% | +138,657 | New |
| UBS Group AG | 134,177 | $1.59M | 0.00% | +69,728+108.2% | Added |
| Goldman Sachs Group Inc | 126,111 | $1.50M | 0.00% | −91,250−42.0% | Reduced |
| Ashford Capital Management Inc | 106,770 | $1.27M | 0.14% | −119,410−52.8% | Reduced |
| Nuveen Asset Management, LLC | 106,770 | $1.26M | 0.00% | +1,261+1.2% | Added |
| Bank of New York Mellon Corp | 104,135 | $1.24M | 0.00% | +790+0.8% | Added |
| State of Wisconsin Investment Board | 92,100 | $1.09M | 0.00% | +51,100+124.6% | Added |
| Renaissance Technologies LLC | 91,000 | $1.08M | 0.00% | −7,600−7.7% | Reduced |
| Rice Hall James & Associates, LLC | 90,375 | $1.07M | 0.04% | +5,980+7.1% | Added |
| Swiss National Bank | 62,000 | $737.0K | 0.00% | +4,700+8.2% | Added |
| JPMorgan Chase & Co | 42,322 | $503.0K | 0.00% | +4,752+12.6% | Added |
| California State Teachers Retirement System | 37,293 | $443.0K | 0.00% | −3,833−9.3% | Reduced |
| Rhumbline Advisers | 36,092 | $429.0K | 0.00% | −325−0.9% | Reduced |
| Susquehanna International Group, LLP | 34,417 | $409.0K | 0.00% | +4,137+13.7% | Added |
| Citigroup Inc | 30,402 | $361.0K | 0.00% | −37,353−55.1% | Reduced |
| Allianz Asset Management GmbH | 28,735 | $341.0K | 0.00% | −1,019−3.4% | Reduced |
| Voya Investment Management LLC | 27,835 | $331.0K | 0.00% | +14,174+103.8% | Added |
| Citadel Advisors LLC | 26,927 | $320.0K | 0.00% | −98,771−78.6% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 26,443 | $314.0K | 0.00% | +26,443 | New |
| Cna Financial Corp | 25,450 | $302.0K | 0.09% | +7,220+39.6% | Added |
| STRS Ohio | 25,100 | $298.0K | 0.00% | +25,100 | New |
| New York State Common Retirement Fund | 24,579 | $292.0K | 0.00% | −211,705−89.6% | Reduced |
| Brandywine Global Investment Management, LLC | 24,400 | $290.0K | 0.00% | 00.0% | Unchanged |
| Virtus ETF Advisers LLC | 23,646 | $281.0K | 0.13% | 00.0% | Unchanged |
| Ergoteles LLC | 23,063 | $274.0K | 0.01% | +4,497+24.2% | Added |
| Parametric Portfolio Associates LLC | 21,265 | $253.0K | 0.00% | +6,131+40.5% | Added |
| MetLife Investment Management | 20,683 | $245.7K | 0.00% | +7,268+54.2% | Added |
| Credit Suisse AG | 19,265 | $228.0K | 0.00% | +1,199+6.6% | Added |
| Allspring Global Investments Holdings, LLC | 18,206 | $216.0K | 0.00% | +3,143+20.9% | Added |
| Wells Fargo & Company | 17,887 | $212.0K | 0.00% | −11,078−38.2% | Reduced |
| American International Group, Inc. | 17,350 | $206.0K | 0.00% | −1,222−6.6% | Reduced |
| UBS Asset Management Americas Inc | 15,600 | $185.3K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 15,315 | $181.9K | 0.00% | −3,905−20.3% | Reduced |
| Invesco Ltd. | 15,144 | $180.0K | 0.00% | +111+0.7% | Added |
| DekaBank Deutsche Girozentrale | 14,400 | $172.0K | 0.00% | +1,300+9.9% | Added |
| Price T Rowe Associates Inc | 14,165 | $168.0K | 0.00% | +14,165 | New |
| Cubist Systematic Strategies, LLC | 12,783 | $152.0K | 0.00% | +12,783 | New |
| State Board of Administration of Florida Retirement System | 11,156 | $133.0K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 11,100 | $132.0K | 0.00% | −13,300−54.5% | Reduced |
| ProShare Advisors LLC | 11,069 | $132.0K | 0.00% | −2,710−19.7% | Reduced |
| Algert Global LLC | 10,514 | $125.0K | 0.01% | +10,514 | New |
| Legal & General Group Plc | 9,999 | $119.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 9,471 | $113.0K | 0.00% | −3,252−25.6% | Reduced |
| BIT Capital GmbH | 7,000 | $83.2K | 0.01% | +7,000 | New |
| Barclays PLC | 5,795 | $68.0K | 0.00% | −54,183−90.3% | Reduced |
| Amalgamated Bank | 5,706 | $68.0K | 0.00% | +5,706 | New |
| Amalgamated Financial Corp. | 5,706 | $68.0K | 0.00% | +5,706 | New |
| Ensign Peak Advisors, Inc | 4,340 | $52.0K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 2,928 | $34.8K | 0.00% | −6,172−67.8% | Reduced |
| Tower Research Capital LLC (TRC) | 2,880 | $34.0K | 0.00% | −295−9.3% | Reduced |
| Ameritas Investment Partners, Inc. | 2,645 | $31.0K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 2,305 | $27.4K | 0.00% | −7,268−75.9% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,868 | $22.0K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 1,700 | $20.0K | 0.00% | +1,700 | New |
| Great West Life Assurance Co | 1,443 | $18.0K | 0.00% | 00.0% | Unchanged |
| HighMark Wealth Management LLC | 720 | $9.00K | 0.01% | −150−17.2% | Reduced |
| Lindbrook Capital, LLC | 674 | $8.00K | 0.00% | +623+1,221.6% | Added |
| Macquarie Group Ltd | 471 | $6.00K | 0.00% | 00.0% | Unchanged |
| Aquatic Capital Management LLC | 400 | $5.00K | 0.01% | +400 | New |
| Signaturefd, LLC | 244 | $3.00K | 0.00% | +161+194.0% | Added |
| Simplex Trading, LLC | 300 | $3.00K | 0.00% | +300 | New |
| Daiwa Securities Group Inc. | 149 | $2.00K | 0.00% | 00.0% | Unchanged |
| Captrust Financial Advisors | 154 | $2.00K | 0.00% | +154 | New |
| Group One Trading, L.P. | 100 | $1.00K | 0.00% | +100 | New |
| Quent Capital, LLC | 47 | $1.00K | 0.00% | +47 | New |
| Artisan Partners Limited Partnership | 0 | $0 | 0.00% | −1,581,845−100.0% | Sold out |
| Logos Global Management LP | 0 | $0 | 0.00% | −250,000−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −69,311−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −64,404−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −50,503−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −44,673−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −38,792−100.0% | Sold out |
| SEI Investments Co | 0 | $0 | 0.00% | −32,950−100.0% | Sold out |
| Teachers Retirement System of the State of Kentucky | 0 | $0 | 0.00% | −25,674−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −17,188−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −15,577−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −15,020−100.0% | Sold out |