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 2024
Institutional positions in Y-mAbs Therapeutics, Inc. as of Mar 31, 2024. 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
- 96
- +2 vs. Q4 2023
- Shares held
- 23.0M
- +2.78M (+13.7%) vs. Q4 2023
- Total value
- $374.0M
- +$236.0M (+171.0%) vs. Q4 2023
- New holders
- 20
- 25 more added
- Sold out
- 18
- 44 more reduced
Compare with Q4 2023: 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 2024
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −26,482−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −26,224−100.0% | Sold out |
| Mirae Asset Global Investments Co., Ltd. | 0 | $0 | 0.00% | −26,090−100.0% | Sold out |
| Bailard, Inc. | 0 | $0 | 0.00% | −16,900−100.0% | Sold out |
| Denali Advisors LLC | 0 | $0 | 0.00% | −16,400−100.0% | Sold out |
| Susquehanna Portfolio Strategies, LLC | 0 | $0 | 0.00% | −15,456−100.0% | Sold out |
| Cim Investment Mangement Inc | 0 | $0 | 0.00% | −15,313−100.0% | Sold out |
| ADAR1 Capital Management, LLC | 0 | $0 | 0.00% | −13,045−100.0% | Sold out |
| Avestar Capital, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −7,359−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −6,249−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −5,253−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −1,577−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −46−100.0% | Sold out |