HEIDEN WILLIAM K

PrivateCIK: 1214939

Location

WALTHAM, MA

Name & Role	Position	Tenure	Holdings
MACROGENICS INC	—	Since May 2022	—
AMAG PHARMACEUTICALS, INC.	President & CEO	Since Aug 2018	—
ATARA BIOTHERAPEUTICS, INC.	—	Since Jun 2019	—

MACROGENICS INC

Position—

TenureSince May 2022

Holdings—

AMAG PHARMACEUTICALS, INC.

PositionPresident & CEO

TenureSince Aug 2018

Holdings—

ATARA BIOTHERAPEUTICS, INC.

Position—

TenureSince Jun 2019

Holdings—