Mirum Pharmaceuticals (mirm 4 05/01/29)

13F holders, Q4 2025 (December 31)
5holders −1
2new positions
3sold out
$2.58avg. 13F price*

At the end of Q4 2025, 5 institutions reported holding Mirum Pharmaceuticals (mirm 4 05/01/29) in their 13F filings, down 1 from Q3 2025. 2 opened new positions and 3 sold out. The largest holders were Sei Investments Co. ($588K), Oppenheimer Asset Management Inc. ($165K) and Stephens Inc. ($52K).

Company
Mirum Pharmaceuticals (mirm 4 05/01/29)
CUSIP
604749AB7
Latest filing quarter
Q2 2026

History

Number of 13F holders

0246 Q2 2024: 2Q2 2024Q3 2024: 4Q3 2024Q4 2024: 3Q4 2024Q1 2025: 3Q1 2025Q2 2025: 3Q2 2025Q3 2025: 6Q3 2025Q4 2025: 5Q4 2025Q1 2026: 4Q1 2026Q2 2026: 2Q2 2026

Total Exit/New Position Q3 2025 → Q4 2025

InstitutionsTotal Value
New Positions2$31K
Exits3$7.3M

All 13F filers, Q3 2025 → Q4 2025: 12,000 shares bought and 200,341 shares sold, net −188,341 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 5 holders

Sei Investments Co. 0.00% No change 228,000 $588K
Oppenheimer Asset Management Inc. 0.00% No change 64,000 $165K
Stephens Inc. 0.00% No change 20,000 $52K
NewEdge Advisors, LLC 0.00% New 10,000 $26K
CoreCap Advisors, LLC 0.00% New 2,000 $5K

"% of holder's portfolio" is MIRUM PHARMACEUTICALS (MIRM 4 05/01/29)'s weight in each manager's 13F, not the share of Mirum Pharmaceuticals (mirm 4 05/01/29) the manager owns.