Key facts
- This page summarizes Jolanda Howe's Form 4 filing for Mirum Pharmaceuticals, Inc. (MIRM).
- 3 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 19 Aug 2026, 18:19.
Jolanda Howe - 18 Aug 2026 Form 4 Insider Report for Mirum Pharmaceuticals, Inc. (MIRM)
- Reporting relationship
- SVP, GLOBAL CONTROLLER
- Issuer ticker
- MIRM
- Reported as of
- 18 Aug 2026
- Net transaction value
- -$4,000,000
- SEC form
- 4
- Accepted by SEC
- 19 Aug 2026, 18:19:30 UTC
- Prior SEC filing
- 05 Aug 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Judit Ryvkin, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Jolanda Howe filed Form 4 for Mirum Pharmaceuticals, Inc. (MIRM) on 19 Aug 2026.
Change
- Previous filing in this sequence was filed on 05 Aug 2026.
- Current net transaction value: -$4,000,000.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001974200
Primary reporting owner
Howe Jolanda
- Relationship
- SVP, GLOBAL CONTROLLER
- Address
- C/O MIRUM PHARMACEUTICALS, INC., 989 E HILLSDALE BLVD., SUITE 300, FOSTER CITY
- Signature
- /s/ Judit Ryvkin, Attorney-in-Fact
- Signature date
- 19 Aug 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
MIRM
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +40,000
- Change %
- +3140%
- Price
- $6.27*
- Shares after
- 41,274
- Date
- 18 Aug 2026
- Ownership
- Direct
MIRM
transaction
Common Stock
Sale
- Transaction value
- $4,000,000
- Shares
- -40,000
- Change %
- -97%
- Price
- $100.00
- Shares after
- 1,274
- Date
- 18 Aug 2026
- Ownership
- Direct
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
MIRM
transaction
Derivative
Employee Stock Option (right to buy)
Options Exercise
- Transaction value
- Shares
- -40,000
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 18 Aug 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 40,000
- Exercise price
- $6.27
- Footnotes
- F1
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 1 footnote
Footnote F1
The stock option is fully vested.