![Geoff Ribar](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Geoff Ribar
Director/Board Member at
MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.
Net worth: 8 M $ as of 2026-05-30
Profile
Geoffrey G.
Ribar is Chief Executive Officer & Director at Taray, Inc. He serves as Director at QuantumScape Corp.
starting in 2026.
He is Independent Director at Acacia Research Corp.
since 2023, at Everspin Technologies, Inc. since 2018, and at MACOM Technology Solutions Holdings, Inc. since 2017.
Former roles include Director at Fulcrum Microsystems, Inc. and MACOM Technology Solutions, Inc., Independent Director at Aquantia Corp.
from 2017 to 2019, Vice President & Controller at Advanced Micro Devices, Inc., Chief Financial Officer at Asyst Technologies, Inc. from 1999 to 2003, Senior Vice President at Cadence Design Systems, Inc. from 2017 to 2018, Chief Financial Officer at NVIDIA Corp.
from 1997 to 1998, Chief Financial Officer at Matrix Semiconductor, Inc. from 2004 to 2006, Chief Financial Officer at Telegent Systems, Inc. from 2008 to 2010, and Chief Financial Officer & Senior Vice President at SiRF Technology Holdings, Inc. from 2006 to 2008.
Education includes undergraduate and MBA degrees from the University of Michigan.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-05-10 | 12,563 ( 0.02% ) | 5 M $ | 2026-05-30 | |
| 2026-05-20 | 97,915 ( 0.42% ) | 3 M $ | 2026-05-30 | |
| 2026-04-27 | 85,827 ( 0.09% ) | 399 096 $ | 2026-05-30 | |
| 2026-06-02 | 36,102 ( 0.01% ) | 324 196 $ | 2026-05-30 |
Geoff Ribar active positions
| Companies | Position | Start |
|---|---|---|
| MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC. | Director/Board Member | 2017-03-21 |
| EVERSPIN TECHNOLOGIES, INC. | Director/Board Member | 2018-12-02 |
| ACACIA RESEARCH CORPORATION | Director/Board Member | 2023-05-15 |
| QUANTUMSCAPE CORPORATION | Director/Board Member | 2026-01-28 |
Taray, Inc.
 Taray, Inc. Information Technology ServicesTechnology Services Develops and designs computer systems | Chief Executive Officer | - |
Former positions of Geoff Ribar
| Companies | Position | End |
|---|---|---|
| AQUANTIA CORP | Director/Board Member | 2019-09-18 |
| CADENCE DESIGN SYSTEMS, INC. | Director of Finance/CFO | 2017-09-30 |
Telegent Systems, Inc.
 Telegent Systems, Inc. SemiconductorsElectronic Technology Manufactures wireless TV broadcasting semiconductors | Director of Finance/CFO | 2010-09-30 |
SiRF Technology, Inc.
 SiRF Technology, Inc. SemiconductorsElectronic Technology Develops semiconductor and software products that enable location awareness in high-volume mobile consumer devices and commercial applications | Director of Finance/CFO | 2008-04-30 |
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Training of Geoff Ribar
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
63
1st degree connections
17
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 17 |
|---|---|
Advanced Micro Devices, Inc.
 Advanced Micro Devices, Inc. SemiconductorsElectronic Technology Manufactures integrated circuits for semiconductors | Electronic Technology |
Asyst Technologies, Inc.
 Asyst Technologies, Inc. Financial ConglomeratesFinance Development stage company | Finance |
Cadence Design Systems, Inc.
 Cadence Design Systems, Inc. Packaged SoftwareTechnology Services Provides software services for semiconductor and electronics systems industries | Technology Services |
NVIDIA Corp.
 NVIDIA Corp. SemiconductorsElectronic Technology Designs and manufactures computer graphics processors, chipsets, and related multimedia software | Electronic Technology |
Matrix Semiconductor, Inc.
 Matrix Semiconductor, Inc. SemiconductorsElectronic Technology Designs and develops three-dimensional integrated circuits | Electronic Technology |
Fulcrum Microsystems, Inc.
 Fulcrum Microsystems, Inc. SemiconductorsElectronic Technology Manufactures semiconductor devices | Electronic Technology |
SiRF Technology Holdings, Inc.
 SiRF Technology Holdings, Inc. SemiconductorsElectronic Technology Develops semiconductor and software products that enables location-awareness | Electronic Technology |
Telegent Systems, Inc.
Telegent Systems, Inc. SemiconductorsElectronic Technology Manufactures wireless TV broadcasting semiconductors | Electronic Technology |
Aquantia Corp.
 Aquantia Corp. SemiconductorsElectronic Technology Provides ethernet connectivity solutions for data center, mobile and enterprise markets | Electronic Technology |
University of Michigan
 University of Michigan Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Acacia Research Corp.
 Acacia Research Corp. Miscellaneous Commercial ServicesCommercial Services Engages in patent licensing, printers manufacturing and oil & natural gas exploration & production business | Commercial Services |
Everspin Technologies, Inc.
 Everspin Technologies, Inc. SemiconductorsElectronic Technology Develops and manufactures magnetic random access memory chips | Electronic Technology |
SiRF Technology, Inc.
SiRF Technology, Inc. SemiconductorsElectronic Technology Develops semiconductor and software products that enable location awareness in high-volume mobile consumer devices and commercial applications | Electronic Technology |
Taray, Inc.
Taray, Inc. Information Technology ServicesTechnology Services Develops and designs computer systems | Technology Services |
MACOM Technology Solutions, Inc.
 MACOM Technology Solutions, Inc. SemiconductorsElectronic Technology Supplies semiconductors and subassemblies for microwave and milliwave applications | Electronic Technology |
MACOM Technology Solutions Holdings, Inc.
 MACOM Technology Solutions Holdings, Inc. SemiconductorsElectronic Technology Operates as a holding company whose subsidiaries provides high-performance analog semiconductor solutions | Electronic Technology |
QuantumScape Corp.
 QuantumScape Corp. Electrical ProductsProducer Manufacturing Develops batteries for electric vehicles | Producer Manufacturing |
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