Reporting Manager
Frazier Life Sciences Public Fund, L.P.
Symbol
MGNX
Shares outstanding
62M shares
Disclosed Ownership
1.55M shares
Ownership
2.5%
Form type
SCHEDULE 13G/A
Filing time
14 Aug 2025, 13:02:43 UTC
Date of event
30 Jun 2025

Reporting Managers (17)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Frazier Life Sciences Public Fund, L.P. 2.5% 1.55M 0 1.55M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLSP, L.L.C., GP of FHMLSP, L.P., GP of Frazier Life Sciences Public Fund, L.P.
FHMLSP, L.P. 2.5% 1.55M 0 1.55M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLSP, L.L.C., GP of FHMLSP, L.P.
FHMLSP, L.L.C. 2.5% 1.55M 0 1.55M /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLSP, L.L.C.
Frazier Life Sciences Public Overage Fund, L.P. 1.5% 926K 0 926K /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLSP Overage, L.L.C., GP of FHMLSP Overage, L.P., GP of Frazier Life Sciences Public Overage Fund, L.P.
FHMLSP Overage, L.P. 1.5% 926K 0 926K /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLSP Overage, L.L.C., GP of FHMLSP Overage, L.P.
FHMLSP Overage, L.L.C. 1.5% 926K 0 926K /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLSP Overage, L.L.C.
Frazier Life Sciences X, L.P. 0.2% 126K 0 126K /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLS X, L.L.C., GP of FHMLS X, L.P., GP of Frazier Life Sciences X, L.P.
FHMLS X, L.P. 0.2% 126K 0 126K /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLS X, L.L.C., GP of FHMLS X, L.P.
FHMLS X, L.L.C. 0.2% 126K 0 126K /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLS X, L.L.C.
Frazier Life Sciences XI, L.P. 0.9% 575K 0 575K /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLS XI, L.L.C., GP of FHMLS XI, L.P., GP of Frazier Life Sciences XI, L.P.
FHMLS XI, L.P. 0.9% 575K 0 575K /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLS XI, L.L.C., GP of FHMLS XI, L.P.
FHMLS XI, L.L.C. 0.9% 575K 0 575K /s/ Steve R. Bailey By Steve R. Bailey, CFO of FHMLS XI, L.L.C.
James N. Topper 0.2% 126K 0 126K /s/ Steve R. Bailey By Steve R. Bailey, Attorney-in-Fact for James N. Topper, pursuant to a Power of Attorney, a copy of which was filed with the SEC on July 31, 2017
Patrick J. Heron 0.2% 126K 0 126K /s/ Steve R. Bailey By Steve R. Bailey, Attorney-in-Fact for Patrick J. Heron, pursuant to a Power of Attorney, a copy of which was filed with the SEC on July 31, 2017
Albert Cha 0% 0 0 0 /s/ Steve R. Bailey By Steve R. Bailey, Attorney-in-Fact for Albert Cha, pursuant to a Power of Attorney, a copy of which was filed with the SEC on August 16, 2021
James Brush 0% 0 0 0 /s/ Steve R. Bailey By Steve R. Bailey, Attorney-in-Fact for James Brush, pursuant to a Power of Attorney, a copy of which was filed with the SEC on August 16, 2021
Daniel Estes 0% 0 0 0 /s/ Steve R. Bailey By Steve R. Bailey, Attorney-in-Fact for Daniel Estes, pursuant to a Power of Attorney, a copy of which was filed with the SEC on April 18, 2022