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