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 2022
Institutional positions in Y-mAbs Therapeutics, Inc. as of Dec 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
- 91
- −9 vs. Q3 2022
- Shares held
- 19.3M
- −4.25M (−18.1%) vs. Q3 2022
- Total value
- $94.2M
- −$245.5M (−72.3%) vs. Q3 2022
- New holders
- 20
- 25 more added
- Sold out
- 29
- 33 more reduced
Compare with Q3 2022: 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 2022
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Victory Capital Management Inc | 0 | $0 | 0.00% | −32,990−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −26,607−100.0% | Sold out |
| Brandywine Global Investment Management, LLC | 0 | $0 | 0.00% | −20,468−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −20,470−100.0% | Sold out |
| Cna Financial Corp | 0 | $0 | 0.00% | −16,720−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −15,912−100.0% | Sold out |
| DekaBank Deutsche Girozentrale | 0 | $0 | 0.00% | −14,400−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −12,594−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −10,807−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −7,500−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −1,880−100.0% | Sold out |
| Advisor Group Holdings, Inc. | 0 | $0 | 0.00% | −1,683−100.0% | Sold out |
| Wells Fargo & Company | 0 | $0 | 0.00% | −1,291−100.0% | Sold out |
| Lindbrook Capital, LLC | 0 | $0 | 0.00% | −606−100.0% | Sold out |
| Macquarie Group Ltd | 0 | $0 | 0.00% | −209−100.0% | Sold out |
| China Universal Asset Management Co., Ltd. | 0 | $0 | 0.00% | −410−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −149−100.0% | Sold out |
| Allworth Financial LP | 0 | $0 | 0.00% | −51−100.0% | Sold out |
| Quent Capital, LLC | 0 | $0 | 0.00% | −47−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |