![Kazushige Kobayashi](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>)
Net worth: 832 838 $ as of 2026-08-30
Kazushige Kobayashi worked as a Director & Product Manager at Stamen Co., Ltd. from 2018 to 2020.
Prior to that, he was an Executive Officer & GM-Media Development at GREE, Inc. Mr. Kobayashi obtained an undergraduate degree from Japan Advanced Institute of Science & Technology.
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
STMN, INC. 2.28% | 2025-12-30 | 200,000 ( 2.28% ) | 832 838 $ | 2026-08-30 |
| Companies | Position | End |
|---|---|---|
| STMN, INC. | Chief Tech/Sci/R&D Officer | 2017-12-31 |
| GREE HOLDINGS, INC. | Corporate Officer/Principal | - |
Active
Inactive
Listed companies
Private companies
| Private companies | 3 |
|---|---|
GREE, Inc.
 GREE, Inc. Packaged SoftwareTechnology Services Engages in the operation and development of Internet media services centered on smartphone with social network system, social games and other entertainment elements | Technology Services |
Japan Advanced Institute of Science & Technology
 Japan Advanced Institute of Science & Technology Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Stamen Co., Ltd.
 Stamen Co., Ltd. Internet Software/ServicesTechnology Services Operates online management platform | Technology Services |
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