Wellington Management Group LLP 13D and 13G filings for MBX Biosciences, Inc. Common Stock:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-10-06 12:22 pm Purchase | 2025-09-30 | 13G | MBX Biosciences, Inc. Common Stock MBX | Wellington Management Group LLP | 4,823,336 10.800% | 2,556,708 (+112.80%) | Filing |
| 2025-08-12 10:34 am Sale | 2025-06-30 | 13G | MBX Biosciences, Inc. Common Stock MBX | Wellington Management Group LLP | 2,266,628 6.800% | -371,893 (-14.09%) | Filing |
| 2025-05-12 10:44 am Sale | 2025-03-31 | 13G | MBX Biosciences, Inc. Common Stock MBX | Wellington Management Group LLP | 2,638,521 7.900% | -299,332 (-10.19%) | Filing |
| 2024-11-08 10:52 am Purchase | 2024-09-30 | 13G | MBX Biosciences, Inc. Common Stock MBX | Wellington Management Group LLP | 2,937,853 9.220% | 2,937,853 (New Position) | Filing |