Question 1

How many shares of RARE does FRONTIER CAPITAL MANAGEMENT CO LLC own?

Accepted Answer

As of 2026-Q2, FRONTIER CAPITAL MANAGEMENT CO LLC holds 2.8M shares of RARE (ULTRAGENYX PHARMACEUTICAL IN).

Question 2

What is FRONTIER CAPITAL MANAGEMENT CO LLC's RARE position worth?

Accepted Answer

As of 2026-Q2, FRONTIER CAPITAL MANAGEMENT CO LLC's RARE position is worth $95.1M.

Question 3

Is FRONTIER CAPITAL MANAGEMENT CO LLC buying or selling RARE?

Accepted Answer

In 2026-Q2, FRONTIER CAPITAL MANAGEMENT CO LLC increased their RARE position (+30.0% change in shares).

Question 4

When did FRONTIER CAPITAL MANAGEMENT CO LLC first buy RARE?

Accepted Answer

Based on available 13F filings, FRONTIER CAPITAL MANAGEMENT CO LLC first reported a position in RARE in 2025-Q2. They have held the position across 5 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	2.8M	+30.0%	$95.1M	0.9%	$33.39	53
2026-Q1	Increased	2.2M	+11.5%	$45.9M	0.5%	$22.07	39
2025-Q4	Increased	2M	+83.8%	$45.2M	0.5%	$22.78	54
2025-Q3	Increased	1.1M	+103.5%	$32.2M	0.3%	$30.36	56
2025-Q2	New	525,464	-	$19.1M	0.2%	$36.52	47

RARE5 quarters

RARE
5 quarters