Mirum Pharmaceuticals, Inc. (MIRM) has 20 known insider and institutional holders on record. The largest holder is New Enterprise Associates 16, L.P. with 2,186,243 shares. Other notable holders include TAKEDA PHARMACEUTICAL CO LTD and O'Donnell Niall.
Over the last 12 months, insiders have made 61 transactions in MIRM stock — 10 buys (valued at $15.26M) and 28 sells (valued at $20.59M). Insider selling has exceeded buying during this period.
MIRM Insider Ownership
Top Holder
New Enterprise Associates 16, L.P.
2,186,243 shares
Buys (12 mo)
10
$15.26M value
Sells (12 mo)
28
$20.59M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
New Enterprise Associates 16, L.p. |
10 Percent Owner |
2,186,243 |
2023-06-15 |
|
| 2 |
Takeda Pharmaceutical Co Ltd |
10 Percent Owner |
1,859,151 |
2019-07-17 |
|
| 3 |
O'donnell Niall |
Director |
1,746,997 |
2022-11-15 |
|
| 4 |
Flynn James E |
10 Percent Owner, Other: * Possible Member of 10% Group |
1,540,190 |
2022-06-08 |
|
| 5 |
Deerfield Healthcare Innovations Fund, L.p. |
Director |
1,540,190 |
2022-06-08 |
|
| 6 |
Heron Patrick J |
Director |
327,585 |
2026-01-27 |
|
| 7 |
Peetz Christopher |
Chief Executive Officer |
194,309 |
2026-03-17 |
|
| 8 |
Longpre Lara |
Chief Development Officer |
105,372 |
2024-03-18 |
|
| 9 |
Grey Michael G |
Director |
50,000 |
2025-11-25 |
|
| 10 |
Tucker Edwin Jonathan |
Chief Medical Officer |
45,838 |
2021-11-15 |
|
| 11 |
Radovich Peter |
President and COO |
40,272 |
2026-03-17 |
|
| 12 |
Clements Ian |
Chief Financial Officer |
30,011 |
2022-11-14 |
|
| 13 |
Vig Pamela |
Chief Scientific Officer |
27,406 |
2024-06-25 |
|
| 14 |
Ramasastry Saira |
Director |
17,000 |
2023-06-14 |
|
| 15 |
Mathers Edward T |
Director |
17,000 |
2022-06-06 |
|
| 16 |
Brosgart Carol L |
Director |
15,583 |
2022-06-06 |
|
| 17 |
Howe Jolanda |
SVP, Global Controller |
8,429 |
2026-03-17 |
|
| 18 |
Bjerkholt Eric |
Chief Financial Officer |
6,666 |
2026-03-17 |
|
| 19 |
Quan Joanne |
Chief Medical Officer |
6,666 |
2026-03-17 |
|
| 20 |
Cardon Lon |
Director |
5,703 |
2024-06-07 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-16 |
Howe Jolanda |
SVP, Global Controller |
Informative Sell |
4,732 |
$91.98 |
$435.24K |
| 2026-03-15 |
Howe Jolanda |
SVP, Global Controller |
Option Exercise (Sell) |
2,658 |
- |
- |
| 2026-03-16 |
Quan Joanne |
Chief Medical Officer |
Informative Sell |
7,287 |
$91.98 |
$670.24K |
| 2026-03-15 |
Quan Joanne |
Chief Medical Officer |
Option Exercise (Sell) |
13,334 |
- |
- |
| 2026-03-16 |
Radovich Peter |
President and COO |
Informative Sell |
16,515 |
$91.98 |
$1.52M |
| 2026-03-15 |
Radovich Peter |
President and COO |
Option Exercise (Sell) |
7,220 |
- |
- |
| 2026-03-16 |
Peetz Christopher |
Chief Executive Officer |
Informative Sell |
40,985 |
$91.98 |
$3.77M |
| 2026-03-15 |
Peetz Christopher |
Chief Executive Officer |
Option Exercise (Sell) |
25,000 |
- |
- |
| 2026-03-16 |
Ramasastry Saira |
Director |
Informative Sell |
2,000 |
$90.76 |
$181.52K |
| 2026-03-16 |
Bjerkholt Eric |
Chief Financial Officer |
Informative Sell |
7,287 |
$91.98 |
$670.24K |
| 2026-03-15 |
Bjerkholt Eric |
Chief Financial Officer |
Option Exercise (Sell) |
13,334 |
- |
- |
| 2026-03-06 |
Radovich Peter |
President and COO |
Option Exercise |
5,912 |
$15.87 |
$93.82K |
| 2026-02-13 |
Ramasastry Saira |
Director |
Informative Sell |
2,000 |
$102.09 |
$204.18K |
| 2026-02-02 |
Howe Jolanda |
SVP, Global Controller |
Informative Sell |
968 |
$103.30 |
$100K |
| 2026-01-31 |
Howe Jolanda |
SVP, Global Controller |
Option Exercise (Sell) |
1,771 |
- |
- |
| 2026-02-02 |
Radovich Peter |
President and COO |
Informative Sell |
2,631 |
$103.30 |
$271.79K |
| 2026-02-02 |
Peetz Christopher |
Chief Executive Officer |
Informative Sell |
9,108 |
$103.30 |
$940.88K |
| 2026-01-28 |
Howe Jolanda |
SVP, Global Controller |
RSU Award |
4,970 |
- |
- |
| 2026-01-28 |
Quan Joanne |
Chief Medical Officer |
RSU Award |
11,760 |
- |
- |
| 2026-01-28 |
Radovich Peter |
President and COO |
RSU Award |
16,280 |
- |
- |
| 2026-01-28 |
Peetz Christopher |
Chief Executive Officer |
RSU Award |
43,500 |
- |
- |
| 2026-01-28 |
Bjerkholt Eric |
Chief Financial Officer |
RSU Award |
11,760 |
- |
- |
| 2026-01-26 |
Howe Jolanda |
SVP, Global Controller |
Informative Sell |
842 |
$96.19 |
$80.99K |
| 2026-01-23 |
Howe Jolanda |
SVP, Global Controller |
Option Exercise (Sell) |
1,500 |
- |
- |
| 2026-01-26 |
Radovich Peter |
President and COO |
Informative Sell |
3,143 |
$96.19 |
$302.33K |
