Question 1

How many shares of RARE does BAKER BROS. ADVISORS LP own?

Accepted Answer

BAKER BROS. ADVISORS LP previously held 0 shares of RARE (Ultragenyx Pharmaceutical, Inc.) before exiting the position in 2026-Q1.

Question 2

What is BAKER BROS. ADVISORS LP's RARE position worth?

Accepted Answer

BAKER BROS. ADVISORS LP's RARE position was last reported at $0 in 2026-Q1 before the exit.

Question 3

Is BAKER BROS. ADVISORS LP buying or selling RARE?

Accepted Answer

In 2026-Q1, BAKER BROS. ADVISORS LP exited their RARE position entirely (-100.0% change in shares).

Question 4

When did BAKER BROS. ADVISORS LP first buy RARE?

Accepted Answer

Based on available 13F filings, BAKER BROS. ADVISORS LP first reported a position in RARE in 2024-Q3. They have held the position across 22 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q1 Latest	Exited	0	-100.0%	$0	0.0%	$22.07	0
2025-Q4	Unchanged	2.8M	0.0%	$63.8M	0.4%	$22.78	0
2025-Q3	Unchanged	2.8M	0.0%	$83.4M	0.6%	$30.36	0
2025-Q2	Increased	2.8M	+75.9%	$100.8M	1.0%	$36.52	64
2025-Q1	Unchanged	1.6M	0.0%	$57.1M	0.6%	$37.82	0
2024-Q4	Unchanged	1.6M	0.0%	$66.3M	0.7%	$42.27	0
2024-Q3	Increased	1.6M	+7.5%	$87.6M	0.9%	$54.43	45

RAREShowing 7 of 22 quarters

RARE
Showing 7 of 22 quarters