# Y-MABS THERAPEUTICS INC (YMAB)

> Institutional ownership reported to the SEC as of Q3 2025, from Form 13F filings. Source: https://holderbook.com/stocks/YMAB/

- Reporting holders: 2
- Reported value: $78.3K
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [Brooklyn Investment Group](https://holderbook.com/funds/1795705-brooklyn-investment-group/) | $75.5K | 16,061 | 0.0% | 4 |
| [IFP Advisors, Inc](https://holderbook.com/funds/1641866-ifp-advisors-inc/) | $2.9K | 332 | 0.0% | 4 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q3 2025 | 2 | $78.3K |
| Q2 2025 | 98 | $126.3M |
| Q1 2025 | 104 | $128.0M |
| Q4 2024 | 114 | $225.6M |
| Q3 2024 | 107 | $339.5M |
| Q2 2024 | 98 | $294.8M |
| Q1 2024 | 98 | $382.1M |
| Q4 2023 | 93 | $140.0M |
| Q3 2023 | 98 | $107.4M |
| Q2 2023 | 95 | $132.8M |
| Q1 2023 | 87 | $97.1M |
| Q4 2022 | 91 | $94.4M |