SC Filed 2023-09-05 Event — SEC 0001193125-23-228444 →

Frazier Life Sciences IX, L.P. → Mirum Pharmaceuticals, Inc. MIRM

Stake: — Shares: —

Composite Decision Signal · PASS (LOW BASE-RATE EDGE) Conviction Score: 25/100 · Filer 90d Win Rate: 0% · Hist. 90d Edge: +0.0%

Passive Schedule 13G filer baseline
Held by 1 tracked 13F institutional manager
Elevated short days-to-cover (7.3 DTC)

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

5 transactions

0 buys · 1 sales · 4 awards/exercises

Issuer Cluster

8 13D/G filings on this issuer

7 other filings besides this one

Filer Track Record

6 filings by this filer

5 other filings in the data moat

Short Interest · settle 2026-10-15

DTC 7.30

6,663,045 shares short · -4.6% vs prior

Institutional Consensus · 2025-12-31

Held by elite portfolio managers

1 holder · $24.37M

Point72 Asset Mgmt

Form 4 Insider Transactions · last 365d

Date	Insider	Role	Type	Shares	Price	Value
2026-06-01	Peetz Christopher	director, officer	Option exercise	30,000	$2.94	$88K
2026-06-01	Ramasastry Saira	director	Sale	3,977	$100.00	$398K
2026-05-29	Walbert Timothy P	director	Option exercise	3,977	—	—
2026-05-29	Cardon Lon	director	Option exercise	3,977	—	—
2026-05-29	Ramasastry Saira	director	Option exercise	3,977	—	—

Other 13D/G Filings on Mirum Pharmaceuticals, Inc.

Filed	Form	Filer	Stake	Shares
2026-01-27	SCHEDULE	Frazier Life Sciences IX, L.P.	6.80%	4,108,404	view →
2022-08-18	SC	Novo Holdings A/S	—	—	view →
2020-12-22	SC	RiverVest Venture Fund IV, L.P.	—	—	view →
2020-12-18	SC	Frazier Life Sciences IX, L.P.	—	—	view →
2020-12-18	SC	Novo Holdings A/S	—	—	view →
2020-04-29	SC	Frazier Life Sciences IX, L.P.	—	—	view →
2020-01-17	SC	Novo Holdings A/S	—	—	view →

Other Filings by Frazier Life Sciences IX, L.P.

Filed	Form	Issuer	Stake	Shares
2026-01-27	SCHEDULE	Mirum Pharmaceuticals, Inc. MIRM	6.80%	4,108,404	view →
2022-09-26	SC	Phathom Pharmaceuticals, Inc. PHAT	—	—	view →
2021-01-27	SC	Passage BIO, Inc. PASG	—	—	view →
2020-12-18	SC	Mirum Pharmaceuticals, Inc. MIRM	—	—	view →
2020-04-29	SC	Mirum Pharmaceuticals, Inc. MIRM	—	—	view →

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