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Mirum Pharmaceuticals, Inc.

MIRM Net buying
CIK 0001759425 #1236 in the set updated 17 Sep 2026
Bought (120 mo)
$127.27M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$72.36M
$2.69M on a plan · $40.63M straight out of an exercise
Sold at will
$29.05M
79 of 142 sales
Net
+$54.90M
+$98.22M against sales at will

By person

34 insiders · 214 transactions
74.1×

Christopher Peetz holds 74.1 times base salary in stock. $56.02M of shares against $755.00K in salary for 2025.

Salary from the company's own proxy. The shares are what Christopher Peetz last reported holding, valued at $98.37, the price Common Stock was last bought or sold at on the open market here, on 14 Sep 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Peetz Christopher
CHIEF EXECUTIVE OFFICER
$294.22K (6)
$25.77M (32) scheduled
−$25.48M
569,440
0.8770%
$56.02M
+51.7%
Heron Patrick J
Director
$20.35M (19)
—
+$20.35M
464,713
0.7157%
$45.71M
—
GREY MICHAEL G
Director
—
$12.40M (7) scheduled
−$12.40M
186,410
0.2871%
$18.34M
−33.7%
Howe Jolanda
SVP, GLOBAL CONTROLLER
—
$9.33M (27) scheduled
−$9.33M
616
0.0009%
$60.60K
−65.2%
Novo Holdings A/S entity
10% owner
$8.63M (1)
—
+$8.63M
2,445,147
3.77%
$240.53M
—
BARRIS PETER J
10% owner
$6.75M (1)
—
+$6.75M
4,186,243
6.45%
$411.80M
—
BASKETT FOREST
10% owner
$6.75M (1)
—
+$6.75M
1,548
0.0024%
$152.28K
—
Behbahani Ali
10% owner
$6.75M (1)
—
+$6.75M
135
0.0002%
$13.28K
—
Chang Carmen
10% owner
$6.75M (1)
—
+$6.75M
135
0.0002%
$13.28K
—
Florence Anthony A. Jr.
10% owner
$6.75M (1)
—
+$6.75M
11,732
0.0181%
$1.15M
—
Frazier Life Sciences IX, L.P.
10% owner
$6.75M (1)
—
+$6.75M
3,566,912
5.49%
$350.88M
—
Makhzoumi Mohamad
10% owner
$6.75M (1)
—
+$6.75M
11,348
0.0175%
$1.12M
—
MAKOWER JOSHUA
10% owner
$6.75M (1)
—
+$6.75M
4,186,243
6.45%
$411.80M
—
MOTT DAVID M
10% owner
$6.75M (1)
—
+$6.75M
4,186,243
6.45%
$411.80M
—
New Enterprise Associates 16, L.P. entity
10% owner
$6.75M (1)
—
+$6.75M
2,186,243
3.37%
$215.06M
—
SANDELL SCOTT D
10% owner
$6.75M (1)
—
+$6.75M
11,348
0.0175%
$1.12M
—
Sonsini Peter W.
10% owner
$6.75M (1)
—
+$6.75M
4,186,243
6.45%
$411.80M
—
Walker Paul Edward
10% owner
$6.75M (1)
—
+$6.75M
114
0.0002%
$11.21K
—
Radovich Peter
PRESIDENT AND COO
—
$3.99M (16)
−$3.99M
57,260
0.0882%
$5.63M
+1,897%
BJERKHOLT ERIC
CHIEF FINANCIAL OFFICER
$397.69K (3)
$4.29M (14)
−$3.89M
44,745
0.0689%
$4.40M
+5,996%
Ramasastry Saira
Director
—
$2.42M (13) scheduled
−$2.42M
0
0.0000%
$0.00
—
Quan Joanne
CHIEF MEDICAL OFFICER
—
$1.78M (4)
−$1.78M
18,864
0.0291%
$1.86M
+28,055%
O'Donnell Niall
Director
$4.50M (1)
$5.96M (3)
−$1.46M
1,621,118
2.50%
$159.47M
+1,197%
Flynn James E
10% owner
$4.98M (2)
$3.62M (10)
+$1.36M
1,540,190
2.37%
$151.51M
—
Vig Pamela
CHIEF SCIENTIFIC OFFICER
$17.68K (2)
$1.20M (6) scheduled
−$1.18M
27,406
0.0422%
$2.70M
—
Brege Laura
Director
$112.20K (1)
$1.26M (2) scheduled
−$1.15M
15,703
0.0242%
$1.54M
—
Fairey William
Director
—
$155.09K (1)
−$155.09K
2,500
0.0039%
$245.93K
—
Longpre Lara
CHIEF DEVELOPMENT OFFICER
$10.27K (1)
$115.69K (5)
−$105.42K
104,407
0.1608%
$10.27M
+39.1%
Clements Ian
Chief Financial Officer
$112.52K (6)
$30.31K (1)
+$82.21K
30,011
0.0462%
$2.95M
+99,937%
Fischer Laurent
Director
$69.02K (6)
—
+$69.02K
10,727
0.0165%
$1.06M
—
Tucker Edwin Jonathan
Chief Medical Officer
$49.56K (2)
$26.26K (1)
+$23.29K
45,838
0.0706%
$4.51M
+2,956%
NEA Partners 16, L.P. entity
10% owner
—
—
—
2,186,243
3.37%
$215.06M
−47.8%
Walbert Timothy P
Director
—
—
—
9,680
0.0149%
$952.22K
—
Cardon Lon
Director
—
—
—
9,680
0.0149%
$952.22K
—

Individual transactions

63
Insider
Date
Role
Action
Shares
Price
Amount
Heron Patrick J
23 Jan 2026
Director
Buy indirect
131,425
$68.48
$9.00M
Heron Patrick J
17 Mar 2025
Director
Buy indirect
21
$43.93
$922.61
Heron Patrick J
14 Mar 2025
Director
Buy indirect
528
$44.11
$23.29K
Heron Patrick J
11 Mar 2025
Director
Buy indirect
963
$43.77
$42.16K
Heron Patrick J
10 Mar 2025
Director
Buy indirect
577
$43.37
$25.02K
Heron Patrick J
10 Mar 2025
Director
Buy indirect
758
$42.66
$32.34K
Heron Patrick J
7 Mar 2025
Director
Buy indirect
580
$43.21
$25.06K
Heron Patrick J
6 Mar 2025
Director
Buy indirect
1,335
$43.89
$58.60K
Heron Patrick J
5 Mar 2025
Director
Buy indirect
267
$44.55
$11.89K
Heron Patrick J
4 Mar 2025
Director
Buy indirect
56
$45.96
$2.57K
Heron Patrick J
4 Mar 2025
Director
Buy indirect
1,279
$45.55
$58.26K
Heron Patrick J
18 Sep 2024
Director
Buy indirect
115
$37.40
$4.30K
Heron Patrick J
6 Sep 2024
Director
Buy indirect
230
$41.58
$9.56K
BJERKHOLT ERIC
27 Mar 2024
CHIEF FINANCIAL OFFICER
Buy
2,000
$24.80
$49.60K
BJERKHOLT ERIC
18 Mar 2024
CHIEF FINANCIAL OFFICER
Buy
2,000
$25.80
$51.60K
Heron Patrick J
9 Nov 2023
Director
Buy indirect
2,910
$28.30
$82.35K
Heron Patrick J
13 Sep 2023
Director
Buy indirect
2,625
$31.02
$81.42K
Heron Patrick J
12 Sep 2023
Director
Buy indirect
3,750
$30.60
$114.76K
BJERKHOLT ERIC
11 Sep 2023
Chief Financial Officer
Buy
10,000
$29.65
$296.49K
Heron Patrick J
11 Sep 2023
Director
Buy indirect
4,687
$30.30
$142.03K
Heron Patrick J
31 Aug 2023
Director
Buy indirect
147,991
$26.25
$3.88M
Clements Ian
26 Nov 2021
Chief Financial Officer
Buy
750
$13.90
$10.43K
Peetz Christopher
24 Nov 2021
President and CEO
Buy
7,000
$14.40
$100.80K
Clements Ian
24 Nov 2021
Chief Financial Officer
Buy
700
$14.40
$10.08K
Peetz Christopher
23 Dec 2020
President and CEO
Buy indirect
2,000
$18.60
$37.20K
Peetz Christopher
23 Dec 2020
President and CEO
Buy indirect
3,000
$18.76
$56.28K
Clements Ian
23 Dec 2020
Chief Financial Officer
Buy
1,562
$18.65
$29.13K
Clements Ian
23 Dec 2020
Chief Financial Officer
Buy
908
$18.55
$16.84K
Tucker Edwin Jonathan
20 Mar 2020
Chief Medical Officer
Buy
2,500
$11.90
$29.74K
Tucker Edwin Jonathan
19 Mar 2020
Chief Medical Officer
Buy
2,000
$9.91
$19.82K
Fischer Laurent
17 Sep 2019
Director
Buy
1,648
$9.37
$15.44K
Fischer Laurent
16 Sep 2019
Director
Buy
452
$9.47
$4.28K
Fischer Laurent
10 Sep 2019
Director
Buy
960
$10.29
$9.88K
Brege Laura
10 Sep 2019
Director
Buy
10,000
$11.22
$112.20K
Longpre Lara
10 Sep 2019
CHIEF DEVELOPMENT OFFICER
Buy
965
$10.64
$10.27K
Fischer Laurent
9 Sep 2019
Director
Buy
300
$11.30
$3.39K
Fischer Laurent
9 Sep 2019
Director
Buy
1,670
$10.54
$17.60K
Peetz Christopher
9 Sep 2019
President and CEO
Buy indirect
2,320
$11.35
$26.33K
Peetz Christopher
9 Sep 2019
President and CEO
Buy indirect
2,000
$10.90
$21.80K
Fischer Laurent
6 Sep 2019
Director
Buy
1,720
$10.71
$18.43K
Peetz Christopher
6 Sep 2019
President and CEO
Buy indirect
4,750
$10.91
$51.81K
Vig Pamela
6 Sep 2019
Chief Scientific Officer
Buy
12
$11.88
$142.56
Vig Pamela
6 Sep 2019
Chief Scientific Officer
Buy
1,600
$10.96
$17.54K
Clements Ian
6 Sep 2019
SVP Finance & Communications
Buy
2,199
$11.87
$26.10K
Clements Ian
6 Sep 2019
SVP Finance & Communications
Buy
1,801
$11.07
$19.94K
Novo Holdings A/S
22 Jul 2019
10% owner
Buy
575,000
$15.00
$8.63M
Flynn James E
22 Jul 2019
10% owner
Buy indirect
166,000
$15.00
$2.49M
Flynn James E
22 Jul 2019
10% owner
Buy indirect
166,000
$15.00
$2.49M
Heron Patrick J
22 Jul 2019
Director
Buy indirect
450,000
$15.00
$6.75M
O'Donnell Niall
22 Jul 2019
Director
Buy indirect
300,000
$15.00
$4.50M
Frazier Life Sciences IX, L.P.
22 Jul 2019
10% owner
Buy
450,000
$15.00
$6.75M
New Enterprise Associates 16, L.P.
22 Jul 2019
10% owner
Buy
450,000
$15.00
$6.75M
BARRIS PETER J
22 Jul 2019
10% owner
Buy indirect
450,000
$15.00
$6.75M
BASKETT FOREST
22 Jul 2019
10% owner
Buy indirect
450,000
$15.00
$6.75M
Behbahani Ali
22 Jul 2019
10% owner
Buy indirect
450,000
$15.00
$6.75M
Chang Carmen
22 Jul 2019
10% owner
Buy indirect
450,000
$15.00
$6.75M
Florence Anthony A. Jr.
22 Jul 2019
10% owner
Buy indirect
450,000
$15.00
$6.75M
Makhzoumi Mohamad
22 Jul 2019
10% owner
Buy indirect
450,000
$15.00
$6.75M
MAKOWER JOSHUA
22 Jul 2019
10% owner
Buy indirect
450,000
$15.00
$6.75M
MOTT DAVID M
22 Jul 2019
10% owner
Buy indirect
450,000
$15.00
$6.75M
SANDELL SCOTT D
22 Jul 2019
10% owner
Buy indirect
450,000
$15.00
$6.75M
Sonsini Peter W.
22 Jul 2019
10% owner
Buy indirect
450,000
$15.00
$6.75M
Walker Paul Edward
22 Jul 2019
10% owner
Buy indirect
450,000
$15.00
$6.75M
Show all 214 transactions →

What was left out

Form 4 filings counted 310
Amendments (4/A) skipped 2
Filings about a different issuer 0
Unreadable filings 0
Joint filings 7
Sales on a Rule 10b5-1 plan 15
Sales straight out of an exercise 48
Sales at will 79
Transactions with no price 2
Shares from compensation/vesting 77,764,553
Sales filed before the plan box existed 19
History held since 18 Jul 2019