MIRUM PHARMACEUTICALS INC

$MIRM
Smart money positioned

14 of the Top-200 alpha managers hold $MIRM as of the latest 13F snapshot.

13F holders
299
Insider buys · 90d
0
Congress · 90d
0

Smart Money · top-200 alpha cohort

14 holders · Q1 2026

$MIRM is held by 14 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 2.15%, with an average of 0.30% of portfolio. Largest holder: Eventide Asset Management, LLC at 2.15%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.

Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.

Institutional holders

Top 10 of 299 · Source: 13F-HR
01
Heritage Investment Group, Inc.
18.30% of portfolio
7,679,684 sh
02
Thomas H Lee Partners LP
0.33% of portfolio
6,945,813 sh
03
TB Capital Gestao de Recursos Ltda.
0.01% of portfolio
3,265,820 sh
04
Fir Tree Capital Management LP
4.90% of portfolio
3,169,454 sh
05
State Street
0.01% of portfolio
2,143,992 sh
06
Vida Ventures Advisors, LLC
2.84% of portfolio
2,124,098 sh
07
Axa S.a.
0.01% of portfolio
1,944,281 sh
08
Cheviot Value Management, LLC
2.15% of portfolio
1,408,871 sh
09
Mason Capital Management LLC
5.80% of portfolio
1,236,027 sh
10
Nomura Asset Management Co. Ltd.
0.08% of portfolio
963,766 sh
See all 299 13F holders · Pro →

Insider activity · last 90 days

50 transactions · 10 filers
02 Feb 2026
Howe Jolanda
▼ SOLD
968
$103.30
S
02 Feb 2026
Radovich Peter
▼ SOLD
2,631
$103.30
S
02 Feb 2026
Peetz Christopher
▼ SOLD
9,108
$103.30
S
26 Jan 2026
Howe Jolanda
▼ SOLD
842
$96.19
S
26 Jan 2026
Radovich Peter
▼ SOLD
3,143
$96.19
S
26 Jan 2026
Peetz Christopher
▼ SOLD
6,831
$96.19
S
23 Jan 2026
Heron Patrick J
▲ BOUGHT
131,425
$68.48
P
26 Jan 2026
Bjerkholt Eric
▼ SOLD
1,053
$96.19
S
26 Jan 2026
Howe Jolanda
▼ SOLD
842
$96.19
S
26 Jan 2026
Radovich Peter
▼ SOLD
3,143
$96.19
S
26 Jan 2026
Peetz Christopher
▼ SOLD
6,831
$96.19
S
23 Jan 2026
Heron Patrick J
▲ BOUGHT
131,425
$68.48
P

Transaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.

Congress trades · last 90 days

No Congress trades

No STOCK Act filings reference $MIRM in the recent window.

Source data: SEC EDGAR · 13F-HR · Form 4 · U.S. House Clerk PTR (disclosures-clerk.house.gov) · Senate eFD (senate.gov) · Last refreshed 04:54 UTC.