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MIRM in the 13F filings

Mirum Pharmaceuticals Inc · CUSIP 604749101

Sector · Pharmaceuticals and biotechnologyTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Pharmaceutical preparations
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
30 Sep 2023
the date the book describes
Filed
14 Nov 2023
latest of these filings; the earliest 14 Nov 2023
Managers listing it
3
at least, of 95 tracked, among listed positions
Comparable managers
93
filed both Q2 2023 and Q3 2023; 1 listed it in both
Shares listed
2,767,367
combined, among listed positions
Reported value
$87m
combined, at the quarter end

Managers listing MIRM in Q3 2023

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2023, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

3 of 3 holders

ActionFiling
Janus Henderson Group Ltd1,923,760$61munder 0.1%Addedn.a.14 Nov 2023 (the filing on sec.gov)
Woodline Partners LP452,707$14m0.17%Added+124,88914 Nov 2023 (the filing on sec.gov)
Two Sigma Advisers LP390,900$12munder 0.1%Addedn.a.14 Nov 2023 (the filing on sec.gov)

Largest increases and reductions, by shares

Q2 2023 to Q3 2023, among managers that listed it in both quarters or opened it.

Increases

Reductions

No reduction among listed positions.

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (0)

No new position among listed positions.

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
3 in Q3 2024 to 10 in Q2 2026

Tracked managers listing it, at least.

0510152023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MIRM by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20201$1.7mn.a.n.a.
Q3 20221$7.5mn.a.n.a.
Q4 20221$7.0mn.a.n.a.
Q1 20232$26mn.a.n.a.
Q2 20232$24mn.a.n.a.
Q3 20233$87mn.a.n.a.
Q4 20232$68m11
Q1 20242$75m11
Q2 20243$179m21
Q3 20243$192m21
Q4 20243$211m30
Q1 20253$251m30
Q2 20254$304m40
Q3 202510$609m62
Q4 20258$613m1415
Q1 202611$1.1bn2011
Q2 202610$1.6bn1120

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

MIRM and LLY →MIRM and JNJ →MIRM and VRTX →Choose a stock to compare with MIRM →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own MIRM, latest filings →Back to the 13F Explorer →