StockDriftsStockDriftsGMB Korea (013870) has 28 disclosed insider purchases and 3 disclosed disposals on record, filed by 7 distinct insiders. Together those filings cover ₩317M ($220K) in reported transaction value. The earliest filing StockDrifts holds for GMB Korea is dated 2023-11-13; the most recent is 2026-07-01. All of it is parsed from DART D001/D002 insider disclosures, the official disclosure system operated by the Financial Supervisory Service (Korea). Across these filings the average return since disclosure is +35.72%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Position | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-07-01 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 10.0K | ₩3,800 | +4.2% | ₩38M ($26K) |
| 2026-06-25 | BUY | Market Buy | 송병영 Byeongyoung Song | CEO | 2.0K | ₩3,580 | -0.4% | ₩7M ($5K) |
| 2026-06-04 | BUY | Market Buy | 차제민 Cha Je-min | Managing Director | 5.0K | - | - | - |
| 2026-06-04 | BUY | Market Buy | 황석보 Seokbo Hwang | Outside Director | 1.0K | - | - | - |
| 2026-05-22 | BUY | Market Buy | 정세영 Jeong Se-young | CEO | 2.8K | ₩4,475 | -9.1% | ₩12M ($9K) |
| 2026-05-21 | BUY | Market Buy | 정세영 Jeong Se-young | CEO | 30 | ₩4,385 | -7.2% | ₩132K ($91) |
| 2026-05-21 | SELL | Market Sell | 황석보 Seokbo Hwang | Outside Director | -500 | ₩4,385 | +7.2% | ₩2M ($2K) |
| 2026-05-20 | BUY | Market Buy | 정세영 Jeong Se-young | CEO | 2.0K | ₩4,270 | -4.7% | ₩9M ($6K) |
| 2026-04-23 | SELL | Market Sell | 황석보 Seokbo Hwang | Outside Director | -492 | ₩5,010 | +18.8% | ₩2M ($2K) |
| 2026-04-22 | SELL | Market Sell | 김정국 Kim Jeong-guk | Managing Director | -5.0K | ₩5,050 | +1.9% | ₩25M ($18K) |
| 2026-03-31 | BUY | 신규선임 | 김명현 Myeonghyun Kim | Managing Director | 3.0K | ₩4,780 | +3.7% | ₩14M ($10K) |
| 2026-03-31 | BUY | 신규선임 | 강석천 Seokcheon Kang | Managing Director | 1.8K | ₩4,780 | +3.7% | ₩9M ($6K) |
| 2026-02-10 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 5.0K | ₩5,400 | +9.3% | ₩27M ($19K) |
| 2026-01-27 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 2.0K | ₩4,555 | +29.5% | ₩9M ($6K) |
| 2026-01-21 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 2.0K | ₩4,675 | +26.2% | ₩9M ($6K) |
| 2025-11-17 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 8.5K | ₩3,895 | +51.5% | ₩33M ($23K) |
| 2025-08-25 | BUY | Market Buy | 손요환 Son Yohwan | Managing Director | 1.5K | ₩4,025 | +46.6% | ₩6M ($4K) |
| 2025-04-24 | BUY | Market Buy | 정세영 Jeong Se-young | CEO | 6.2K | ₩3,980 | +48.2% | ₩25M ($17K) |
| 2024-12-24 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 500 | ₩3,620 | +63.0% | ₩2M ($1K) |
| 2024-12-20 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 1.5K | ₩3,680 | +60.3% | ₩6M ($4K) |
| 2024-12-05 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 2.4K | ₩3,615 | +63.2% | ₩9M ($6K) |
| 2024-12-04 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 906 | ₩3,635 | +62.3% | ₩3M ($2K) |
| 2024-11-29 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 240 | ₩3,785 | +55.9% | ₩908K ($631) |
| 2024-11-27 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 4.7K | ₩3,800 | +55.3% | ₩18M ($12K) |
| 2024-11-26 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 5.3K | ₩3,740 | +57.8% | ₩20M ($14K) |
| 2024-11-15 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 133 | ₩3,695 | +59.7% | ₩491K ($341) |
| 2024-11-14 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 1.9K | ₩3,680 | +60.3% | ₩7M ($5K) |
| 2024-11-04 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 3.4K | ₩3,900 | +51.3% | ₩13M ($9K) |
| 2024-10-22 | BUY | Market Buy | 정세영 Jeong Se-young | CEO | 6.3K | ₩3,825 | +54.3% | ₩24M ($17K) |
| 2024-08-08 | BUY | Market Buy | 황석보 Seokbo Hwang | Outside Director | 500 | ₩3,950 | +49.4% | ₩2M ($1K) |
| 2024-06-11 | BUY | Market Buy | 황석보 Seokbo Hwang | Outside Director | 1.1K | ₩4,380 | +34.7% | ₩5M ($3K) |
| 2024-04-19 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 71 | ₩4,230 | +39.5% | ₩300K ($209) |
| 2023-11-13 | BUY | Market Buy | 최완욱 Choi Wan-wook | Managing Director | 500 | ₩4,010 | +47.1% | ₩2M ($1K) |
Every trade listed above is disclosed in DART D001/D002 insider disclosures, filed with the Financial Supervisory Service (Korea). View the original DART filings for GMB Korea. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.