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 2024
Institutional positions in Y-mAbs Therapeutics, Inc. as of Jun 30, 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
- +1 vs. Q1 2024
- Shares held
- 24.4M
- +1.38M (+6.0%) vs. Q1 2024
- Total value
- $294.2M
- −$79.2M (−21.2%) vs. Q1 2024
- New holders
- 17
- 35 more added
- Sold out
- 16
- 34 more reduced
1 institution that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2024: 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 2024
Shares, value and share of portfolio for each institution holding Y-mAbs Therapeutics, Inc.; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Caxton Associates LP | 0 | $0 | 0.00% | −18,807−100.0% | Sold out |
| American International Group, Inc. | 0 | $0 | 0.00% | −18,132−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −16,588−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −16,216−100.0% | Sold out |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −13,729−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −11,963−100.0% | Sold out |
| Point72 Asia (Singapore) Pte. Ltd. | 0 | $0 | 0.00% | −6,019−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −4,532−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −3,300−100.0% | Sold out |
| Metropolitan Life Insurance Co | 0 | $0 | 0.00% | −2,055−100.0% | Sold out |
| Tucker Asset Management LLC | 0 | $0 | 0.00% | −1,200−100.0% | Sold out |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Ziegler Capital Management, LLC | – | – | – | – | Not filed |