Jeff Yass’s Mirum Pharmaceuticals MIRM Stock Holding History

Jeff Yass’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	$3.51M	Buy	30,000 +23,400	+355%	+$2.35M	﹤0.01%	5305
2026 Q1	$610K	Buy	+6,600	New	+$621K	﹤0.01%	9150
2025 Q4	–	Sell	-6,000	Closed	-$440K	–	13106
2025 Q3	$440K	Buy	+6,000	New	+$381K	﹤0.01%	9255
2024 Q4	–	Sell	-5,500	Closed	-$215K	–	12829
2024 Q3	$215K	Buy	+5,500	New	+$219K	﹤0.01%	10333
2024 Q1	–	Sell	-15,100	Closed	-$446K	–	12883
2023 Q4	$446K	Buy	+15,100	New	+$457K	﹤0.01%	8954
2022 Q1	–	Sell	-17,600	Closed	-$281K	–	13596
2021 Q4	$281K	Buy	+17,600	New	+$274K	﹤0.01%	10647

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

Jeff Yass's MIRM Position: Q2 2026 in Review

Jeff Yass reduced its Mirum Pharmaceuticals (MIRM) stake by 67% in Q2 2026, selling an estimated $1.65M and leaving 7,924 shares worth $928K. The position accounts for ﹤0.01% of the portfolio, ranked #8384.

Jeff Yass first reported a position in MIRM in Q1 2021 and has held it in 22 quarters since. The position peaked at $2.67M in Q2 2025. 327 funds tracked by Wall St. Rank hold MIRM as of Q2 2026.

Jeff Yass held 7,924 shares of Mirum Pharmaceuticals worth $928K as of Q2 2026.
Jeff Yass sold 16,393 Mirum Pharmaceuticals shares in Q2 2026, an estimated $1.65M.
Mirum Pharmaceuticals made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #8384 holding.
Jeff Yass first reported a position in Mirum Pharmaceuticals in Q1 2021 and has held it in 22 quarters since.
Jeff Yass's Mirum Pharmaceuticals position peaked at $2.67M in Q2 2025.
327 funds tracked by Wall St. Rank held Mirum Pharmaceuticals as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.