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Clarence Granger
Director/Board Member at
ULTRA CLEAN HOLDINGS, INC.
Net worth: 7 M $ as of 31/07/2026
Profile
Clarence L.
Granger is currently a Director at Ultra Clean Holdings, Inc. since 2026.
Formerly, Mr. Granger was President & Chief Executive Officer at HMT Technology Corp.
from 1993 to 1994, Chairman & Chief Executive Officer at Ultra Clean Technology Systems & Service, Inc. from 1996 to 2002, Vice President-Media Operations at Seagate Technology ULC in 1996, and Vice President & GM-Thin Film Disk Division at Xidex Corp.
from 1988 to 1989.
Education includes graduate studies at Stanford University and undergraduate studies at the University of California, Berkeley.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 22/05/2026 | 85,392 ( 0.19% ) | 7 M $ | 31/07/2026 |
Clarence Granger active positions
| Companies | Position | Start |
|---|---|---|
| ULTRA CLEAN HOLDINGS, INC. | Director/Board Member | 22/05/2026 |
Former positions of Clarence Granger
| Companies | Position | End |
|---|---|---|
Ultra Clean Technology Systems & Service, Inc.
 Ultra Clean Technology Systems & Service, Inc. Electronic Equipment/InstrumentsElectronic Technology Designs, engineers, and manufactures gas delivery systems for semiconductor process equipment manufactures and device makers | Chief Executive Officer | 01/11/2002 |
Seagate Technology ULC
 Seagate Technology ULC Electronics/Appliance StoresRetail Trade Operates as an online store that sells hard drives, storage devices, SSD and HDD | Public Communications Contact | 01/01/1996 |
HMT Technology Corp.
 HMT Technology Corp. Computer PeripheralsElectronic Technology Provides high-performance thin film disks for hard disks drives | Chief Executive Officer | 01/01/1994 |
Xidex Corp.
 Xidex Corp. Miscellaneous Commercial ServicesCommercial Services Develops, manufactures and sells nanomanipulation products | Corporate Officer/Principal | 01/01/1989 |
Training of Clarence Granger
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
56
1st degree connections
7
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 7 |
|---|---|
HMT Technology Corp.
HMT Technology Corp. Computer PeripheralsElectronic Technology Provides high-performance thin film disks for hard disks drives | Electronic Technology |
Seagate Technology ULC
Seagate Technology ULC Electronics/Appliance StoresRetail Trade Operates as an online store that sells hard drives, storage devices, SSD and HDD | Retail Trade |
Ultra Clean Holdings, Inc.
 Ultra Clean Holdings, Inc. Industrial MachineryProducer Manufacturing Designs, engineers and manufactures gas & liquid delivery systems for semiconductor process equipment manufacturers and device makers | Producer Manufacturing |
Stanford University
 Stanford University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Ultra Clean Technology Systems & Service, Inc.
Ultra Clean Technology Systems & Service, Inc. Electronic Equipment/InstrumentsElectronic Technology Designs, engineers, and manufactures gas delivery systems for semiconductor process equipment manufactures and device makers | Electronic Technology |
University of California, Berkeley
 University of California, Berkeley Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Xidex Corp.
Xidex Corp. Miscellaneous Commercial ServicesCommercial Services Develops, manufactures and sells nanomanipulation products | Commercial Services |
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