Top ten largest shareholders of STA according to the book closure date as of 21 April 2025, are as follows:
| No. | Name | No. of Shares | % |
| 1. | SRI TRANG HOLDINGS CO., LTD | 344,190,629 | 22.41 |
| 2. | Mr. Viyavood Sincharoenkul | 132,987,509 | 8.66 |
| 3. | Thai NVDR Company Limited | 111,050,807 | 7.23 |
| 4. | THE CENTRAL DEPOSITORY(PTE)LIMITED-LISTED SECURITIES | 58,706,206 | 3.82 |
| 5. | MRS. PROMSUK SINCHAROENKUL | 48,060,000 | 3.13 |
| 6. | LGT BANK (SINGAPORE) LTD | 47,193,740 | 3.07 |
| 7. | MR. VITCHAPHOL SINCHAROENKUL | 34,350,000 | 2.24 |
| 8. | Mr. Vitanath Sincharoenkul | 29,220,000 | 1.90 |
| 9. | SOUTH EAST ASIA UK (TYPE C) NOMINEES LIMITED | 27,257,228 | 1.77 |
| 10. | นาย สมภพ ติงธนาธิกุล | 25,000,000 | 1.63 |