Brian Posner

Brian Posner

Directeur/Bestuurslid bij ARCH CAPITAL GROUP LTD.

Vermogen: 11 M $ op 31-05-2026

64 jaar
Finance
Health Technology
Miscellaneous

Profiel

Brian S.
Posner
was the founder of Hygrove Partners LLC, founded in 2000, where the title held was Managing Partner from 2000 to 2006.
Mr. Posner is the founder of Point Rider Group LLC, founded in 2008, holding the title of President since 2008.
Current jobs include Independent Director at Arch Capital Group Ltd. since 2010, Independent Director at Dyne Therapeutics, Inc. starting in 2025, Trustee at AQR Funds, Trustee at Northwestern University, Member-Supervisory Board at Biogen GmbH since 2008, and Trustee at Northwestern University Clinical & Translational Sciences Institute.
Former jobs include President, CEO & Chief Investment Officer at ClearBridge Investments LLC from 2006 to 2008, Chairman at Bioverativ, Inc. from 2017 to 2018, Director at Sotheby's Holdings, Inc. from 2000 to 2003, Independent Director at Biogen, Inc. from 2008 to 2022, Director at Anadys Pharmaceuticals, Inc. in 2011, Independent Director at BG Medicine, Inc. from 2013 to 2015, Director at RiverPark Funds Trust, Director at Biogen Idec New Ventures, Inc., Portfolio Manager at Fidelity Management & Research Co. LLC from 1987 to 1995, Portfolio Manager at Warburg Pincus Asset Management, Inc. from 1997 to 1998, and Portfolio Manager at Credit Suisse Asset Management LLC from 1997 to 1998.
Education includes an undergraduate degree from Northwestern University conferred in 1983 and an MBAistration from The University of Chicago Booth School of Business conferred in 1987.

Bekende belangen in openbare bedrijven

OndernemingDatumAantal aandelenTotale waardeWaarderingsdatum
05-05-2026 122.175 ( 0,03% ) 11 M $ 31-05-2026
08-06-2026 24.500 ( 0,01% ) 473 585 $ 31-05-2026

Actieve functies van Brian Posner

BedrijvenFunctieBegin
ARCH CAPITAL GROUP LTD. Directeur/Bestuurslid 04-11-2010
DYNE THERAPEUTICS, INC. Directeur/Bestuurslid 01-10-2025
Directeur/Bestuurslid -
Directeur/Bestuurslid 01-01-2008
Directeur/Bestuurslid -
Directeur/Bestuurslid -
Point Rider Group LLC
Oprichter 01-03-2008

Eerdere bekende functies van Brian Posner

BedrijvenFunctieEinde
BIOGEN INC. Directeur/Bestuurslid 15-05-2022
BIOVERATIV INC Voorzitter 08-03-2018
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