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Debra Zack
Chief Tech/Sci/R&D Officer at
SPERO THERAPEUTICS, INC.
Net worth: 189 904 $ as of 31/07/2026
Profile
Debra Jeske Zack is currently Chief Medical Officer at Spero Therapeutics, Inc. since 2026.
Former positions include Chief Medical Officer at Exagen, Inc. from 2020 to 2022, Executive Director-Global Product Area at Amgen, Inc., Vice President-Clinical Development at Xencor, Inc., and Associate Professor at the University of California, Los Angeles.
Education includes undergraduate studies at Texas Christian University and a doctorate from The University of Texas Southwestern Medical Center.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 03/08/2026 | 162,311 ( 0.28% ) | 189 904 $ | 31/07/2026 |
Debra Zack active positions
| Companies | Position | Start |
|---|---|---|
| SPERO THERAPEUTICS, INC. | Chief Tech/Sci/R&D Officer | 27/07/2026 |
Former positions of Debra Zack
| Companies | Position | End |
|---|---|---|
| EXAGEN INC. | Chief Tech/Sci/R&D Officer | 05/12/2022 |
University of California, Los Angeles
 University of California, Los Angeles Other Consumer ServicesConsumer Services Functions as a College/University | Corporate Officer/Principal | - |
| AMGEN INC. | Corporate Officer/Principal | - |
| XENCOR, INC. | Corporate Officer/Principal | - |
Training of Debra Zack
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
22
1st degree connections
7
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 7 |
|---|---|
Amgen, Inc.
 Amgen, Inc. BiotechnologyHealth Technology Discovers, develops, manufactures and delivers human therapeutics | Health Technology |
Xencor, Inc.
 Xencor, Inc. BiotechnologyHealth Technology Develops therapeutics to treat autoimmune and allergic diseases, cancer and other conditions | Health Technology |
University of California, Los Angeles
University of California, Los Angeles Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Texas Christian University
 Texas Christian University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Exagen, Inc.
 Exagen, Inc. Medical/Nursing ServicesHealth Services Operates as a commercial-stage diagnostics company | Health Services |
The University of Texas Southwestern Medical Center
 The University of Texas Southwestern Medical Center Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Spero Therapeutics, Inc.
 Spero Therapeutics, Inc. BiotechnologyHealth Technology Develops therapies for the treatment of bacterial infections | Health Technology |
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