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Korean Science 131220

Company
대한과학Korean Science
Insiders
2
Buys
11
Total Value
₩324M ($225K)
Avg Return
+3.10%
Last Filing
2026-06-29

Korean Science (131220) has 11 disclosed insider purchases and 0 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩324M ($225K) in reported transaction value. The earliest filing StockDrifts holds for Korean Science is dated 2024-09-12; the most recent is 2026-06-29. Across these filings the average return since disclosure is +3.10%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

DateTypeSourceInsiderPositionSharesPrice at filingReturnValue
2026-06-29BUYMarket Buy
이충형
Choonghyeong Lee
Managing Director20.1K---
2026-06-29BUYMarket Buy
서현정
Seo Hyun-jeong
CEO921---
2026-06-26BUYMarket Buy
이충형
Choonghyeong Lee
Managing Director7.3K---
2026-06-26BUYMarket Buy
서현정
Seo Hyun-jeong
CEO7.7K---
2026-04-17BUYMarket Buy
서현정
Seo Hyun-jeong
CEO6.7K₩4,790-0.6%₩32M ($22K)
2026-02-19BUYMarket Buy
이충형
Choonghyeong Lee
Managing Director20.7K₩4,850+1.6%₩100M ($70K)
2026-01-26BUYMarket Buy
이충형
Choonghyeong Lee
Managing Director6.3K₩4,740+4.0%₩30M ($21K)
2025-10-22BUYMarket Buy
서현정
Seo Hyun-jeong
CEO4.2K₩4,700+4.9%₩20M ($14K)
2025-10-16BUYMarket Buy
서현정
Seo Hyun-jeong
CEO2.1K₩4,730+4.2%₩10M ($7K)
2024-12-13BUYMarket Buy
서현정
Seo Hyun-jeong
CEO21.8K₩4,645+6.1%₩101M ($70K)
2024-09-12BUYMarket Buy
서현정
Seo Hyun-jeong
CEO6.2K₩4,860+1.4%₩30M ($21K)

Frequently asked questions

Who has been buying Korean Science stock?
2 distinct insiders have filed 11 disclosed insider purchases in Korean Science (131220), most recently on 2026-06-29. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.
How many insider filings does Korean Science have?
Korean Science has 11 buy-side and 0 sell-side disclosures on record, covering ₩324M ($225K) in total reported value, spanning 2024-09-12 to 2026-06-29.
Do insider buys in Korean stocks predict returns?
Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean regulatory filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.