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 2021
Institutional positions in Y-mAbs Therapeutics, Inc. as of Jun 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
- 100
- −17 vs. Q1 2021
- Shares held
- 26.1M
- −370.2K (−1.4%) vs. Q1 2021
- Total value
- $886.9M
- +$82.1M (+10.2%) vs. Q1 2021
- New holders
- 13
- 45 more added
- Sold out
- 30
- 22 more reduced
Compare with Q1 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, Q2 2021
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Signaturefd, LLC | 29 | $1.00K | 0.00% | +29 | New |
| Red Door Wealth Management, LLC | 40 | $1.00K | 0.00% | +40 | New |
| TCI Wealth Advisors, Inc. | 62 | $2.00K | 0.00% | +62 | New |
| Daiwa Securities Group Inc. | 76 | $3.00K | 0.00% | 00.0% | Unchanged |
| Macquarie Group Ltd | 471 | $16.0K | 0.00% | 00.0% | Unchanged |
| Penserra Capital Management LLC | 990 | $33.0K | 0.00% | +10+1.0% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 1,000 | $34.0K | 0.00% | 00.0% | Unchanged |
| HighMark Wealth Management LLC | 1,281 | $43.0K | 0.03% | +930+265.0% | Added |
| UBS Group AG | 1,352 | $45.0K | 0.00% | +1,247+1,187.6% | Added |
| Great West Life Assurance Co | 1,443 | $49.0K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 1,528 | $51.6K | 0.00% | −8,737−85.1% | Reduced |
| Tower Research Capital LLC (TRC) | 1,795 | $61.0K | 0.00% | −2,254−55.7% | Reduced |
| First Mercantile Trust Co | 2,445 | $83.0K | 0.01% | −304−11.1% | Reduced |
| Ameritas Investment Partners, Inc. | 2,645 | $89.0K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 2,976 | $100.0K | 0.00% | 00.0% | Unchanged |
| Credit Agricole S A | 3,500 | $118.0K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 4,831 | $163.0K | 0.00% | +303+6.7% | Added |
| Amalgamated Bank | 6,599 | $223.0K | 0.00% | +6,599 | New |
| Barclays PLC | 6,854 | $232.0K | 0.00% | −27,147−79.8% | Reduced |
| Arizona State Retirement System | 7,065 | $239.0K | 0.00% | +7,065 | New |
| Boothbay Fund Management, LLC | 7,935 | $268.0K | 0.01% | +7,935 | New |
| Marshall Wace North America L.P. | 8,204 | $277.0K | 0.00% | +8,204 | New |
| Trexquant Investment LP | 8,690 | $294.0K | 0.02% | −852−8.9% | Reduced |
| Allstate Corp | 9,394 | $318.0K | 0.01% | +2,455+35.4% | Added |
| Metropolitan Life Insurance Co | 9,433 | $318.8K | 0.00% | +472+5.3% | Added |
| Erste Asset Management GmbH | 10,000 | $338.8K | 0.01% | 00.0% | Unchanged |
| Principal Financial Group Inc | 10,036 | $339.0K | 0.00% | +1,148+12.9% | Added |
| State Board of Administration of Florida Retirement System | 11,019 | $372.0K | 0.00% | +2,174+24.6% | Added |
| Marshall Wace, LLP | 12,310 | $415.0K | 0.00% | +12,310 | New |
| DekaBank Deutsche Girozentrale | 12,700 | $430.0K | 0.00% | 00.0% | Unchanged |
| DnB Asset Management AS | 12,815 | $433.1K | 0.00% | +12,815 | New |
| Cna Financial Corp | 13,290 | $449.0K | 0.13% | +910+7.4% | Added |
| MetLife Investment Management | 13,415 | $453.4K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 13,702 | $463.0K | 0.00% | −4,093−23.0% | Reduced |
| Virtus ETF Advisers LLC | 13,728 | $464.0K | 0.19% | +1,735+14.5% | Added |
| Invesco Ltd. | 13,866 | $468.0K | 0.00% | +5,363+63.1% | Added |
| Royal Bank of Canada | 14,870 | $503.0K | 0.00% | +5,564+59.8% | Added |
| Credit Suisse AG | 15,567 | $527.0K | 0.00% | +851+5.8% | Added |
| Susquehanna International Group, LLP | 15,947 | $539.0K | 0.00% | −3,379−17.5% | Reduced |
| Wells Fargo & Company | 16,600 | $562.0K | 0.00% | +2,226+15.5% | Added |
| ProShare Advisors LLC | 16,894 | $571.0K | 0.00% | +2,724+19.2% | Added |
| ExodusPoint Capital Management, LP | 17,000 | $575.0K | 0.01% | +17,000 | New |
| Squarepoint Ops LLC | 18,554 | $627.0K | 0.00% | −18,335−49.7% | Reduced |
| American International Group, Inc. | 19,582 | $662.0K | 0.00% | +1,799+10.1% | Added |
| SEI Investments Co | 19,951 | $674.0K | 0.00% | +850+4.5% | Added |
| Manufacturers Life Insurance Company, The | 20,197 | $683.0K | 0.00% | +2,412+13.6% | Added |
| Ensign Peak Advisors, Inc | 22,598 | $764.0K | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 23,419 | $791.6K | 0.00% | +10,519+81.5% | Added |
| SG Americas Securities, LLC | 25,436 | $860.0K | 0.00% | −3,730−12.8% | Reduced |
| Teachers Retirement System of the State of Kentucky | 25,674 | $868.0K | 0.01% | 00.0% | Unchanged |
| Hillsdale Investment Management Inc. | 26,699 | $902.0K | 0.07% | +26,699 | New |
| Deutsche Bank AG | 27,999 | $946.0K | 0.00% | +1,329+5.0% | Added |
| Rhumbline Advisers | 35,021 | $1.18M | 0.00% | −675−1.9% | Reduced |
| JPMorgan Chase & Co | 35,419 | $1.20M | 0.00% | +3,503+11.0% | Added |
| Allianz Asset Management GmbH | 37,271 | $1.26M | 0.00% | +110.0% | Added |
| D. E. Shaw & Co., Inc. | 39,083 | $1.32M | 0.00% | −41,382−51.4% | Reduced |
| State of Wisconsin Investment Board | 41,000 | $1.39M | 0.00% | 00.0% | Unchanged |
| Vident Investment Advisory, LLC | 41,609 | $1.41M | 0.04% | +10,170+32.3% | Added |
| Rafferty Asset Management, LLC | 45,705 | $1.54M | 0.01% | −31,677−40.9% | Reduced |
| Two Sigma Investments, LP | 46,228 | $1.56M | 0.00% | −227,989−83.1% | Reduced |
| Parametric Portfolio Associates LLC | 47,474 | $1.60M | 0.00% | +30,604+181.4% | Added |
| California State Teachers Retirement System | 48,177 | $1.63M | 0.00% | +2,169+4.7% | Added |
| Swiss National Bank | 57,300 | $1.94M | 0.00% | +11,000+23.8% | Added |
| Alps Advisors Inc | 57,386 | $1.94M | 0.02% | +57,386 | New |
| Citigroup Inc | 73,302 | $2.48M | 0.00% | −23,651−24.4% | Reduced |
| Bank of America Corp | 82,570 | $2.79M | 0.00% | +20.0% | Added |
| Bank of New York Mellon Corp | 91,626 | $3.10M | 0.00% | −9,284−9.2% | Reduced |
| Morgan Stanley | 92,166 | $3.11M | 0.00% | −122,270−57.0% | Reduced |
| Rice Hall James & Associates, LLC | 96,774 | $3.27M | 0.12% | −4,254−4.2% | Reduced |
| Maven Securities LTD | 102,800 | $3.52M | 0.37% | +37,800+58.2% | Added |
| Burrage Capital Management LLC | 114,454 | $3.87M | 3.88% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 135,300 | $4.57M | 0.01% | −104,800−43.6% | Reduced |
| Soleus Capital Management, L.P. | 144,300 | $4.88M | 0.75% | +144,300 | New |
| Nuveen Asset Management, LLC | 161,625 | $5.46M | 0.00% | +33,288+25.9% | Added |
| Brookfield Asset Management Inc. | 166,654 | $5.63M | 0.03% | +58,954+54.7% | Added |
| Citadel Advisors LLC | 175,185 | $5.92M | 0.01% | +83,790+91.7% | Added |
| Tekla Capital Management LLC | 197,820 | $6.69M | 0.22% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 202,119 | $6.83M | 0.00% | +11,601+6.1% | Added |
| Memorial Sloan Kettering Cancer Center | 216,916 | $7.33M | 4.79% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 241,770 | $8.17M | 0.01% | +3,243+1.4% | Added |
| Candriam Luxembourg S.C.A. | 178,181 | $9.26M | 0.06% | −1,764−1.0% | Reduced |
| Oracle Investment Management Inc | 300,642 | $10.2M | 1.41% | −80,000−21.0% | Reduced |
| Lombard Odier Asset Management (Switzerland) SA | 320,032 | $10.8M | 0.55% | +138,540+76.3% | Added |
| MPM Oncology Impact Management LP | 337,291 | $11.4M | 1.87% | 00.0% | Unchanged |
| Northern Trust Corp | 346,406 | $11.7M | 0.00% | +605+0.2% | Added |
| Artal Group S.A. | 400,000 | $13.5M | 0.31% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 551,047 | $18.6M | 0.00% | +76,929+16.2% | Added |
| Ashford Capital Management Inc | 583,508 | $19.7M | 1.78% | +75,425+14.8% | Added |
| Polar Capital Holdings Plc | 585,921 | $19.8M | 0.11% | +577,892+7,197.6% | Added |
| Cormorant Asset Management, LP | 800,000 | $27.0M | 1.05% | −430,000−35.0% | Reduced |
| Goldman Sachs Group Inc | 820,482 | $27.7M | 0.01% | +2,633+0.3% | Added |
| First Light Asset Management, LLC | 950,192 | $32.1M | 1.93% | +5,939+0.6% | Added |
| Artisan Partners Limited Partnership | 1,318,279 | $44.6M | 0.05% | +3790.0% | Added |
| Alliancebernstein L.P. | 1,348,596 | $45.6M | 0.02% | +117,258+9.5% | Added |
| State Street Corp | 1,389,511 | $47.0M | 0.00% | −319,910−18.7% | Reduced |
| FMR LLC | 1,548,987 | $52.4M | 0.00% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,635,255 | $55.3M | 0.00% | +36,676+2.3% | Added |
| Sofinnova Investments, Inc. | 2,194,278 | $74.2M | 4.51% | 00.0% | Unchanged |
| BlackRock Inc. | 2,703,691 | $91.4M | 0.00% | +178,915+7.1% | Added |
| Wellington Management Group LLP | 4,448,610 | $150.4M | 0.03% | +1,428,152+47.3% | Added |