StockDriftsStockDriftsIntron Bio (048530) has 7 disclosed insider purchases and 0 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩701M ($487K) in reported transaction value. The earliest filing StockDrifts holds for Intron Bio is dated 2025-01-02; the most recent is 2026-06-08. 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 +13.97%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Position | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-06-08 | BUY | Market Buy | 윤경원 Kyeong-won Yoon | CEO/Vice President | 38.6K | - | - | - |
| 2026-03-19 | SELL | 임원퇴임 | 전수연 Sooyeon Jeon | Sooyeon Jeon | -20.8K | ₩4,610 | +9.1% | ₩96M ($67K) |
| 2026-02-20 | SELL | 임원퇴임 | 설재구 Seol Jae-gu | Seol Jae-gu | -31.1K | ₩3,640 | -15.1% | ₩113M ($78K) |
| 2026-01-29 | SELL | 임원퇴임 | 김수진 Sujin Kim | Sujin Kim | -7.0K | ₩4,020 | -4.2% | ₩28M ($20K) |
| 2026-01-20 | BUY | Market Buy | 윤경원 Kyeong-won Yoon | CEO/Vice President | 49.8K | ₩3,055 | +37.1% | ₩152M ($106K) |
| 2026-01-19 | SELL | 임원퇴임 | 강상현 Sanghyun Kang | vice president | -99.0K | ₩2,915 | -43.7% | ₩288M ($200K) |
| 2026-01-05 | BUY | 신규선임 | 손지수 Jisoo Son | moving | 535 | ₩3,265 | +28.3% | ₩2M ($1K) |
| 2025-12-17 | SELL | 장외매도 | 윤성준 Seongjun Yoon | CEO | -1.0M | ₩3,480 | -20.4% | ₩3.5B ($2.4M) |
| 2025-11-21 | BUY | Market Buy | 윤경원 Kyeong-won Yoon | CEO/Vice President | 30.0K | ₩3,730 | +12.3% | ₩112M ($78K) |
| 2025-11-20 | BUY | Market Buy | 윤경원 Kyeong-won Yoon | CEO/Vice President | 35.0K | ₩3,790 | +10.6% | ₩133M ($92K) |
| 2025-11-19 | BUY | Market Buy | 윤경원 Kyeong-won Yoon | CEO/Vice President | 32.0K | ₩3,655 | +14.6% | ₩117M ($81K) |
| 2025-11-18 | BUY | Market Buy | 윤경원 Kyeong-won Yoon | CEO/Vice President | 33.0K | ₩3,665 | +14.3% | ₩121M ($84K) |
| 2025-02-20 | BUY | Market Buy | 강상현 Sanghyun Kang | vice president | 15.0K | ₩4,420 | -5.2% | ₩66M ($46K) |
| 2025-01-02 | BUY | 신규선임 | 김성우 Seongwoo Kim | moving | 10.8K | ₩5,600 | -25.2% | ₩61M ($42K) |
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 Intron Bio. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.