MIRM
MIRUM-AI (MIRM)
NASDAQ
$81.50-$1.60 (-1.93%)
Price as of Oct 22, 2026 7:56 PM EDT
  • $5.4B
    Market Cap
  • 19.89%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
FRAZIER LIFE SCIENCES MANAGEMENT, L.P.
11.83%
7.7M
0 (0.00%)
Jun 30, 2026
JANUS HENDERSON GROUP PLC
10.70%
6.9M
+880,505 (+12.68%)
Mar 31, 2026
JUPITER TOPCO LLC
9.10%
5.9M
+5.9M (+100.00%)
Jun 30, 2026
N/A
9.10%
5.9M
+5.9M (+100.00%)
Jun 30, 2026
BLACKROCK, INC.
6.76%
4.4M
+543,533 (+12.38%)
Jun 30, 2026
FMR LLC
5.65%
3.7M
+1.7M (+46.45%)
Jun 30, 2026
FRAZIER MANAGEMENT LLC
5.49%
3.6M
0 (0.00%)
Dec 31, 2021

Current Ownership Distribution

  • Institutions916.6M (53.61%)
  • Mutual Funds754.9M (44.15%)
  • Insiders38.3M (2.24%)
  • Other0 (0.00%)

Insider Transactions

  • 2.24% (38.3M)
    Current InsiderOwnership (%, shares)
  • 1
    Number of InsiderBuying (last 12 months)
  • $22.4M
    Amount of InsiderBuying (last 12 months)
  • 7
    Number of InsiderSelling (last 12 months)
  • $253.8M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Howe Jolanda
SVP, GLOBAL CONTROLLER
Exempt
Oct 16, 2026
$0.00
16,112
$0.00
8,888
Howe Jolanda
SVP, GLOBAL CONTROLLER
Exempt
Oct 16, 2026
$309,994.88
16,112
$19.24
16,728
Myers Robert Paul
Chief Medical Officer
Award
Oct 09, 2026
$0.00
40,000
$0.00
40,000
Myers Robert Paul
Chief Medical Officer
Award
Oct 09, 2026
$0.00
25,000
$0.00
25,000
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Exempt
Oct 06, 2026
$0.00
5,305
$0.00
169,695
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Exempt
Oct 06, 2026
$0.00
6,892
$0.00
233,108
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Exempt
Oct 06, 2026
$101,802.95
5,305
$19.19
199,745
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Exempt
Oct 06, 2026
$109,376.04
6,892
$15.87
206,637
BJERKHOLT ERIC
CHIEF FINANCIAL OFFICER
Sell
Sep 14, 2026
$978,092.91
9,943
$98.37
44,745
BJERKHOLT ERIC
CHIEF FINANCIAL OFFICER
Exempt
Sep 11, 2026
$0.00
18,333
$0.00
0
BJERKHOLT ERIC
CHIEF FINANCIAL OFFICER
Exempt
Sep 11, 2026
$0.00
18,333
$0.00
54,688
Howe Jolanda
SVP, GLOBAL CONTROLLER
Sell
Sep 02, 2026
$65,800.00
658
$100.00
616
BJERKHOLT ERIC
CHIEF FINANCIAL OFFICER
Sell
Aug 11, 2026
$599,509.50
6,001
$99.90
36,355
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Exempt
Aug 10, 2026
$0.00
20,000
$0.00
88,487
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Exempt
Aug 10, 2026
$58,720.00
20,000
$2.94
214,309
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Sell
Aug 10, 2026
$1.2M
11,683
$98.51
202,626
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Sell
Aug 10, 2026
$597,187.25
6,017
$99.25
196,609
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Sell
Aug 10, 2026
$230,322.00
2,300
$100.14
194,309
Howe Jolanda
SVP, GLOBAL CONTROLLER
Sell
Aug 03, 2026
$193,733.60
1,840
$105.29
1,274
BJERKHOLT ERIC
CHIEF FINANCIAL OFFICER
Sell
Jul 06, 2026
$380,097.08
3,124
$121.67
44,057
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Exempt
Jul 06, 2026
$0.00
20,000
$0.00
108,487
BJERKHOLT ERIC
CHIEF FINANCIAL OFFICER
Sell
Jul 06, 2026
$128,306.64
1,048
$122.43
43,009
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Exempt
Jul 06, 2026
$58,720.00
20,000
$2.94
214,309
BJERKHOLT ERIC
CHIEF FINANCIAL OFFICER
Sell
Jul 06, 2026
$65,387.52
528
$123.84
42,481
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Sell
Jul 06, 2026
$1.5M
12,134
$121.65
202,175
BJERKHOLT ERIC
CHIEF FINANCIAL OFFICER
Sell
Jul 06, 2026
$37,482.00
300
$124.94
42,181
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Sell
Jul 06, 2026
$511,503.54
4,181
$122.34
197,994
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Sell
Jul 06, 2026
$244,386.50
1,975
$123.74
196,019
Peetz Christopher
CHIEF EXECUTIVE OFFICER
Sell
Jul 06, 2026
$213,390.90
1,710
$124.79
194,309
Howe Jolanda
SVP, GLOBAL CONTROLLER
Sell
Jul 01, 2026
$326,520.00
2,721
$120.00
3,114