Top shareholders according to the share registration book closing on 28 August 2019 are as follows:

No. Major Shareholders # Shares % Shares
1. Mrs. Charuwan Vanasin 107,976,162 12.72
2. Mrs. Nawara Vanasin 49,872,663 5.87
3. Doctor Amnuay Unnanuntana 43,510,970 5.12
4. WJ INTERNATIONAL HOSPITAL MANAGEMENT COMPANY LIMITED 60,000,000 7.07
5. Ramkhamhaeng Hospital PCL. 26,844,500 3.16
6. Global Health Investment Co., Ltd. 21,413,340 2.52
7. Khunying Songseang Meksawan 20,046,582 2.36
8. Thai NVDR Co.,Ltd. 14,860,279 1.75
9. Mr. Aurchat Kanjanapitak 14,786,000 1.74
10. Mr. Arsa Meksawan 9,361,755 1.10

Source: https://www.set.or.th/set/companyholder.do?symbol=THG&ssoPageId=6&language=en&country=US