![John Andrew Yam](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: 7 479 $ as of 31/05/2026
John Andrew Ma Yam is currently a Member of the Philippine Medical Association and a Member of the Philippine Association of Thoracic & Cardiovascular Surgeons I.
Formerly, Dr. Yam was an Independent Director at Primex Corp.
Dr. Yam earned a doctorate degree from the University of Santo Tomas.
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
PRIMEX CORP. 0.02% | 31/12/2025 | 485,000 ( 0.02% ) | 7 479 $ | 31/05/2026 |
| Companies | Position | Start |
|---|---|---|
Philippine Association of Thoracic & Cardiovascular Surgeons I | Corporate Officer/Principal | - |
Philippine Medical Association | Corporate Officer/Principal | - |
| Companies | Position | End |
|---|---|---|
| PRIMEX CORPORATION | Director/Board Member | - |
Active
Inactive
Listed companies
Private companies
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
| Private companies | 4 |
|---|---|
Primex Corp.
 Primex Corp. Real Estate DevelopmentFinance Engages in sale of residential lots and units & leases land and commercial spaces | Finance |
University of Santo Tomas
 University of Santo Tomas Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Philippine Medical Association | |
Philippine Association of Thoracic & Cardiovascular Surgeons I |
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