Security key
604749101
Mirum Pharmaceuticals, Inc. - Common Stock (MIRM)
CUSIP: 604749101
Q4 2022 13F Holders as of 31 Dec 2022
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 33,331,988
- Total 13F value
- $650,146,380
- Share change
- -461,012
- Put/Call ratio
- 32%
- SEC-reported price per share
- $19.50
- Number of holders
- 101
- Value change
- -$12,725,497
- Number of buys
- 59
- Number of sells
- 47
- Shares outstanding
- 60,919,423
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2022
Institutions
101
Top holders
10
MIRM full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
Mirum Pharmaceuticals, Inc. SEC filings
Mirum Pharmaceuticals, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 604749101
Recent filing periods:
Ownership snapshot
Top reported holders of MIRM - Mirum Pharmaceuticals, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
James E. Flynn
Disclosed value leader
James E. Flynn
Comparable rows
0/15
Latest evidence
11 Nov 2022
3/4/5
13F
Highest disclosed value: $90,958,032
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
James E. Flynn has the largest disclosed position value at $90.96M.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens James E. Flynn's linked filing trail.
Disclosed position value
Top 5
James E. Flynn
$90.96M
NEA Management Company, LLC
$87.99M
Frazier Life Sciences Management,...
$80.42M
Niall O'Donnell
$45.45M
DEERFIELD MANAGEMENT COMPANY, L.P.
$42.7M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| James E. Flynn |
3/4/5
* Possible Member of 10% Group, 10%+ Owner
|
—
denominator unverified
|
$90,958,032
3,244,434 shares
|
— | 06 Jun 2022 |
| NEA Management Company, LLC |
13F
Company
|
—
denominator unverified
|
$87,986,000
4,187,801 shares
|
— | 30 Sep 2022 |
| Frazier Life Sciences Management, L.P. |
13F
Company
|
—
denominator unverified
|
$80,422,000
3,827,781 shares
|
— | 30 Sep 2022 |
| Niall O'Donnell |
3/4/5
Director
|
—
denominator unverified
|
$45,448,205
1,621,118 shares
|
— | 11 Nov 2022 |
| DEERFIELD MANAGEMENT COMPANY, L.P. |
13F
Company
|
—
denominator unverified
|
$42,699,000
2,032,335 shares
|
— | 30 Sep 2022 |
| RiverVest Venture Management LLC |
13F
Company
|
—
denominator unverified
|
$40,363,000
1,921,118 shares
|
— | 30 Sep 2022 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2022
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
101
Shares
33,331,988
Rows available
101
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2022 vs Q3 2022 Across Filers
Q3 2022 holders
107
Q4 2022 holders
101
Holder diff
-6
| Investor | Q3 2022 Shares | Q4 2022 Shares | Share Diff | Share Chg % | Q3 2022 value | Q4 2022 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend