13F Insight
DOSSIER · 13F Holders · Q1 2026Healthcare · Pharmaceutical PreparationsCheap mega-capRe-rated
MIRM

MIRUM PHARMACEUTICALS INC

324 institutions still hold MIRUM PHARMACEUTICALS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 604749101·Pharmaceutical Preparations·324 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 9.9%
vs prior quarter
13F value held
$3.7B
73.0% inst. owned
of float
Holders
324
+110 QoQ
filers reporting
Activity
+33 / −75
+742 added · −807 reduced
this quarter
Concentration
19.37%
Frazier Life Sciences Management, L.P. #1
top holder share
AI Holders Summary · Q1 2026

324 institutions reported MIRM in Q1 2026. Frazier Life Sciences Management, L.P. leads at 19.4% of the visible book. +110 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Frazier Life Sciences Management, L.P.
CIK 0001892134
$709M7.7M18.25%Q1 202602
JANUS HENDERSON GROUP PLC
CIK 0001274173
$642M6.9M0.31%Q1 202603
BlackRock, Inc.
CIK 0002012383
$355M3.8M0.01%Q1 202604
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$223M2.4M0.01%Q1 202605
FMR LLC
CIK 0000315066
$182M2.0M0.01%Q1 202606
STATE STREET CORP
CIK 0000093751
$180M1.9M0.01%Q1 202607
Vanguard Portfolio Management
CIK 0002100121
$132M1.4M0.01%Q1 202608
EVENTIDE ASSET MANAGEMENT, LLC
CIK 0001442891
$130M1.4M2.15%Q1 202609
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$123M1.3M0.02%Q1 202610
BVF INC/IL
CIK 0001056807
$118M1.5M3.98%Q4 202511
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$116M1.3M0.01%Q1 202612
TANG CAPITAL MANAGEMENT LLC
CIK 0001232621
$114M1.2M5.80%Q1 202613
Novo Holdings A/S
CIK 0001388325
$100M1.3M7.75%Q4 202514
TCG Crossover Management, LLC
CIK 0001839948
$98M1.1M2.81%Q1 202615
BNP PARIBAS FINANCIAL MARKETS
CIK 0001166588
$84M911K0.04%Q1 202616
Rock Springs Capital Management LP
CIK 0001595725
$75M811K4.42%Q1 202617
D. E. Shaw & Co., Inc.
CIK 0001009207
$75M948K0.04%Q4 202518
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$72M775K0.06%Q1 202619
CITADEL ADVISORS LLC
CIK 0001423053
$67M853K0.01%Q4 202520
Capital World Investors
CIK 0001422849
$67M724K0.01%Q1 2026
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