MA
Schedule 13G filing
Madison Avenue Partners, LP disclosed a 6.4% stake in RARE
Madison Avenue Partners, LP reported owning 6.4% of Ultragenyx Pharmaceutical Inc. (RARE) (6,307,798 shares) in a Schedule 13G filed Oct 20, 2026.
A 13G is a passive stake: the holder does not plan to push for changes.
- Disclosed
- Oct 20, 2026
- Source
- Schedule 13G
More RARE insider and Congress trades
From a public Schedule 13G, linked above. Not investment advice, and not a recommendation to buy or sell.