Who has been buying CI Tech stock?

2 distinct insiders have filed 6 disclosed insider purchases in CI Tech (004920), most recently on 2026-05-29. 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 CI Tech have?

CI Tech has 6 buy-side and 0 sell-side disclosures on record, covering ₩615M ($427K) in total reported value, spanning 2025-03-31 to 2026-05-29.

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.

CI Tech 004920

Company

씨아이테크CI Tech

Insiders

Buys

Total Value

₩615M ($427K)

Avg Return

-7.79%

Last Filing

2026-05-29

CI Tech (004920) has 6 disclosed insider purchases and 0 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩615M ($427K) in reported transaction value. The earliest filing StockDrifts holds for CI Tech is dated 2025-03-31; the most recent is 2026-05-29. Across these filings the average return since disclosure is -7.79%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

Date	Type	Source	Insider	Position	Shares	Price at filing	Return	Value
2026-09-11	SELL	주식병합	윤석관 Seokkwan Yoon	Managing Director	-6.0K	₩907	+0.0%	₩5M ($4K)
2026-09-11	SELL	주식병합	케이엠기술 KM Technology	-	-1.1M	₩907	+0.0%	₩1.0B ($695K)
2026-09-11	SELL	주식병합	김대영 Daeyoung Kim	CEO	-410.2K	₩907	+0.0%	₩372M ($258K)
2026-09-11	SELL	주식병합	씨엔씨기술 OneCNC Technology	-	-10.4M	₩907	+0.0%	₩9.5B ($6.6M)
2026-09-11	SELL	주식병합	케이엠기술 KM Technology	-	-803.6K	₩907	+0.0%	₩729M ($506K)
2026-05-29	BUY	차입	여울컴퍼니 Yeoul Company	-	2.0M	₩970	+10.2%	₩1.9B ($1.3M)
2025-12-01	SELL	기타	헌터하우스 Hunter House	-	-200.6K	₩1,146	-1.4%	₩230M ($160K)
2025-11-27	BUY	Market Buy	헌터하우스 Hunter House	-	11.8K	₩1,173	-0.9%	₩14M ($10K)
2025-11-26	BUY	Market Buy	헌터하우스 Hunter House	-	200	₩1,132	+2.6%	₩226K ($157)
2025-11-07	BUY	행사가액조정	케이엠기술 KM Technology	-	2.4K	-	-	-
2025-11-07	BUY	제3자배정유상증자	씨엔씨기술 OneCNC Technology	-	1.4M	₩1,199	-3.1%	₩1.6B ($1.1M)
2025-10-01	BUY	Market Buy	씨엔씨기술 OneCNC Technology	-	138.9K	₩1,319	-11.9%	₩183M ($127K)
2025-10-01	BUY	제3자배정유상증자	씨엔씨기술 OneCNC Technology	-	280.9K	₩1,319	-11.9%	₩371M ($257K)
2025-09-30	BUY	Market Buy	씨엔씨기술 OneCNC Technology	-	121.2K	₩1,327	-12.4%	₩161M ($112K)
2025-09-29	BUY	Market Buy	씨엔씨기술 OneCNC Technology	-	95.8K	₩1,303	-10.8%	₩125M ($87K)
2025-09-26	BUY	Market Buy	씨엔씨기술 OneCNC Technology	-	98.7K	₩1,340	-13.3%	₩132M ($92K)
2025-09-15	SELL	기타	헌터하우스 Hunter House	-	-110.7K	₩1,232	+5.7%	₩136M ($95K)
2025-09-12	BUY	신규보고	헌터하우스 Hunter House	-	8.2M	₩1,158	+0.3%	₩9.5B ($6.6M)
2025-08-01	BUY	신규주요주주	케이엠기술 KM Technology	-	890.5K	₩1,166	-0.3%	₩1.0B ($721K)
2025-08-01	BUY	신규주요주주	케이엠기술 KM Technology	-	1.2M	₩1,166	-0.3%	₩1.4B ($993K)
2025-03-31	SELL	임원퇴임	김종서 Kim Jong-seo	Internal director	-166.7K	₩1,096	-6.0%	₩183M ($127K)

Frequently asked questions

Who has been buying CI Tech stock?: 2 distinct insiders have filed 6 disclosed insider purchases in CI Tech (004920), most recently on 2026-05-29. 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 CI Tech have?: CI Tech has 6 buy-side and 0 sell-side disclosures on record, covering ₩615M ($427K) in total reported value, spanning 2025-03-31 to 2026-05-29.
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.