Security key
984241109
Y-mAbs Therapeutics, Inc. - Common Stock, $0.0001 par value per share (YMAB)
CUSIP: 984241109
Q3 2025 13F Holders as of 30 Sep 2025
- Type / Class
- Equity / Common Stock, $0.0001 par value per share
- Shares outstanding
- 45,101,565
- Total 13F shares
- 16,393
- Share change
- -27,793,139
- Total reported value
- $78,346
- Price per share
- $6.66
- Number of holders
- 2
- Value change
- -$125,346,804
- Number of buys
- 1
- Number of sells
- 94
Report period
Q3 2025
Institutions
2
Top holders
2
Broader feeds
Reporting periods
Holder history for CUSIP 984241109
Recent filing periods:
Ownership snapshot
Top shareholders of YMAB - Y-mAbs Therapeutics, Inc. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with the largest verified stakes, then open the linked filing trail.
Lead holder
—
13D/G signal
—
Evidence rows
0
Latest as of
—
No top shareholder records were found across 13F, 13D/G, and Forms 3/4/5 for this issuer.
13F holder rows
Institutional holders as of Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
2
Shares
16,393
Rows loaded
2
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
96
Q3 2025 holders
2
Holder diff
-94
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 Value $ | Q3 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.