Ultragenyx Pharmaceutical Inc.

FRONTIER CAPITAL MANAGEMENT CO LLC RARE

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/17/2026

Shares

1,965,084

Value ($000)

45,197

Weight

0.5%

2025 Q2 - 2025 Q4 (3 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/17/2026	45,197	0.5%	1,965,084	12/31/2025
2025 Q3	11/14/2025	32,158	0.3%	1,069,098	9/30/2025
2025 Q2	8/14/2025	19,106	0.2%	525,464	6/30/2025