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Filing
SC 13G/A
SC 13G/A0000902219-21-000376·WELLINGTON MANAGEMENT GROUP LLP
Schedule 13G ownership disclosure
Y-MABS THERAPEUTICS INC
Security class unavailable · CUSIP: 984241109
Event date: 2021-06-30
Legacy cover-page extraction is best effort and may not include every reporting person.
- Filing-level shares
- 4,448,610
- Percent of class
- 10.2100%
Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.
Source: SEC EDGAR filingFiling metadata
- Accession number
- 0000902219-21-000376
- Form type
- SC 13G/A
- Filer
- WELLINGTON MANAGEMENT GROUP LLP
- CIK
- CIK 902219
- Filed
- Jul 12, 2021
- Reporting period
- Jun 30, 2021
- Description
- Schedule 13G beneficial ownership