As of March 23, 2026, OSR Holdings's top three insider holders are Kuk Hyoun Hwang (President And Ceo, 12.70Mn shares), Global Life Science Investors Llc Bellevue (TenPercentOwner, 2.04Mn shares), David Jin Yoo (Chief Financial Officer, 20.00K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Kuk Hyoun Hwang | President And Ceo | 0 | 24,317,738 | 19 Feb, 2025 |
| Global Life Science Investors Llc Bellevue | - | 2,043,500 | 0 | 19 Feb, 2025 |
| In Chul Chung | - | 20,000 | 0 | 16 Feb, 2023 |
| Steven Reed | - | 20,000 | 0 | 16 Feb, 2023 |
| David Jin Yoo | Chief Financial Officer | 20,000 | 0 | 27 Mar, 2023 |
| Hosun Euh | - | 20,000 | 0 | 16 Feb, 2023 |
| Jin Whan Park | - | 20,000 | 0 | 16 Feb, 2023 |
| Rad Roberts | - | 20,000 | 0 | 16 Feb, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 14 Feb, 2025 | Kuk Hyoun Hwang | Common Stock | A | 43,000 | $0.00 | 2,043,500 | I | J |
| 14 Feb, 2025 | Global Life Science Investors Llc Bellevue | Common Stock | A | 43,000 | $0.00 | 2,043,500 | D | J |
| 14 Feb, 2025 | Kuk Hyoun Hwang | Common Stock | A | 7,531,634 | $0.00 | 9,575,134 | I | J |
| 14 Feb, 2025 | Kuk Hyoun Hwang | Common Stock | A | 3,123,970 | $0.00 | 12,699,104 | I | J |
| 23 Mar, 2023 | David Jin Yoo | Common Stock | A | 20,000 | $0.00 | 20,000 | D | A |
| 23 Mar, 2023 | Global Life Science Investors Llc Bellevue | Common Stock | D | 20,000 | $0.00 | 2,000,500 | D | J |
| 23 Mar, 2023 | Global Life Science Investors Llc Bellevue | Warrant for Common Stock | D | 20,000 | $0.00 | 370,000 | D | J |
| 23 Mar, 2023 | David Jin Yoo | Warrant for Common Stock | A | 20,000 | $0.00 | 20,000 | D | A |
| 21 Feb, 2023 | Global Life Science Investors Llc Bellevue | Common Stock | A | 225,000 | $0.00 | 2,025,000 | D | J |
| 21 Feb, 2023 | Global Life Science Investors Llc Bellevue | Common Stock | D | 4,500 | $0.00 | 2,020,500 | D | J |
| 14 Feb, 2023 | Global Life Science Investors Llc Bellevue | Common Stock | D | 20,000 | $0.00 | 1,705,000 | D | J |
| 14 Feb, 2023 | Steven Reed | Common Stock | A | 20,000 | $0.00 | 20,000 | D | A |
| 14 Feb, 2023 | In Chul Chung | Common Stock | A | 20,000 | $0.00 | 20,000 | D | A |
| 14 Feb, 2023 | Hosun Euh | Common Stock | A | 20,000 | $0.00 | 20,000 | D | A |
| 14 Feb, 2023 | Rad Roberts | Common Stock | A | 20,000 | $0.00 | 20,000 | D | A |
| 14 Feb, 2023 | Jin Whan Park | Common Stock | A | 20,000 | $0.00 | 20,000 | D | A |
| 14 Feb, 2023 | Global Life Science Investors Llc Bellevue | Common Stock | D | 20,000 | $0.00 | 1,685,000 | D | J |
| 14 Feb, 2023 | In Chul Chung | Warrant for Common Stock | A | 20,000 | $0.00 | 20,000 | D | A |
| 14 Feb, 2023 | Steven Reed | Warrant for Common Stock | A | 20,000 | $0.00 | 20,000 | D | A |
| 14 Feb, 2023 | Global Life Science Investors Llc Bellevue | Common Stock | D | 20,000 | $0.00 | 1,665,000 | D | J |