Julian Baker’s Mirum Pharmaceuticals MIRM Stock Holding History

Julian Baker’s Portfolio MIRM Stock Details MIRM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$52.2M	Hold	445,975	–	–	0.26%	37
2026 Q1	$41.2M	Buy	+445,975	New	+$42M	0.24%	39
2025 Q1	–	Sell	-190,476	Closed	-$7.88M	–	94
2024 Q4	$7.88M	Hold	190,476	–	–	0.08%	59
2024 Q3	$7.43M	Hold	190,476	–	–	0.08%	61
2024 Q2	$6.51M	Hold	190,476	–	–	0.08%	56
2024 Q1	$4.78M	Hold	190,476	–	–	0.06%	63
2023 Q4	$5.62M	Hold	190,476	–	–	0.06%	61
2023 Q3	$6.02M	Buy	+190,476	New	+$5.22M	0.03%	62
2021 Q4	–	Sell	-647,313	Closed	-$12.9M	–	123
2021 Q3	$12.9M	Hold	647,313	–	–	0.06%	70
2021 Q2	$11.2M	Hold	647,313	–	–	0.05%	73
2021 Q1	$12.8M	Hold	647,313	–	–	0.06%	70
2020 Q4	$11.3M	Buy	647,313 +94,304	+17%	+$1.85M	0.04%	71
2020 Q3	$10.7M	Sell	553,009 -30,324	-5%	-$651K	0.04%	64
2020 Q2	$11.4M	Hold	583,333	–	–	0.05%	56
2020 Q1	$8.17M	Buy	583,333 +250,000	+75%	+$4.1M	0.05%	52
2019 Q4	$8.17M	Hold	333,333	–	–	0.04%	59
2019 Q3	$3.35M	Buy	+333,333	New	+$4.09M	0.02%	73

Other funds holding MIRM

FLSM

Frazier Life Sciences Management Palo Alto, California $4.59B AUM 237.58% 1-Year Est. Return

Jupiter Topco New York $245B AUM

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Julian Baker's MIRM Position: Q2 2026 in Review

Julian Baker held its Mirum Pharmaceuticals (MIRM) position steady in Q2 2026 at 445,975 shares worth $52.2M. The position accounts for 0.26% of the portfolio, ranked #37.

Julian Baker first reported a position in MIRM in Q3 2019 and has held it in 17 quarters since. 326 funds tracked by Wall St. Rank hold MIRM as of Q2 2026.

Julian Baker held 445,975 shares of Mirum Pharmaceuticals worth $52.2M as of Q2 2026.
Julian Baker left its Mirum Pharmaceuticals share count unchanged in Q2 2026.
Mirum Pharmaceuticals made up 0.26% of Julian Baker's portfolio in Q2 2026, its #37 holding.
Julian Baker first reported a position in Mirum Pharmaceuticals in Q3 2019 and has held it in 17 quarters since.
326 funds tracked by Wall St. Rank held Mirum Pharmaceuticals as of Q2 2026.

Based on Baker Bros. Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.