Optiver Holding
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Optiver Holding’s Mirum Pharmaceuticals MIRM Stock Holding History

Optiver Holding’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
Q1 		$10.9K Buy
118
+58
+97% +$5.46K ﹤0.01% 1204
2025
Q4 		$4.74K Sell
60
-180
-75% -$12.9K ﹤0.01% 1403
2025
Q3 		$17.6K Buy
+240
New +$15.3K ﹤0.01% 1016

Other funds holding MIRM

FLSM
Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
EAM
Eventide Asset Management Boston, Massachusetts $6.05B AUM 76.64% 1-Year Est. Return

Optiver Holding's MIRM Position: Q1 2026 in Review

Optiver Holding increased its Mirum Pharmaceuticals (MIRM) stake by 97% in Q1 2026, buying an estimated $5.46K and bringing the position to 118 shares worth $10.9K. The position accounts for ﹤0.01% of the portfolio, ranked #1204.

Optiver Holding first reported a position in MIRM in Q3 2025 and has held it in 3 quarters since. The position peaked at $17.6K in Q3 2025. 311 funds tracked by Wall St. Rank hold MIRM as of Q1 2026.

  • Optiver Holding held 118 shares of Mirum Pharmaceuticals worth $10.9K as of Q1 2026.
  • Optiver Holding bought 58 Mirum Pharmaceuticals shares in Q1 2026, an estimated $5.46K.
  • Mirum Pharmaceuticals made up ﹤0.01% of Optiver Holding's portfolio in Q1 2026, its #1204 holding.
  • Optiver Holding first reported a position in Mirum Pharmaceuticals in Q3 2025 and has held it in 3 quarters since.
  • Optiver Holding's Mirum Pharmaceuticals position peaked at $17.6K in Q3 2025.
  • 311 funds tracked by Wall St. Rank held Mirum Pharmaceuticals as of Q1 2026.

Based on Optiver Holding's 13F filing for Q1 2026, filed 15 May 2026.