Who has been buying UTI stock?

5 distinct insiders have filed 4 disclosed insider purchases in UTI (179900), most recently on 2026-03-09. 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 UTI have?

UTI has 4 buy-side and 17 sell-side disclosures on record, covering ₩4.5B ($3.1M) in total reported value, spanning 2024-02-28 to 2026-03-09.

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.

UTI 179900

Company

유티아이UTI

Insiders

Buys

Total Value

₩4.5B ($3.1M)

Avg Return

+7.31%

Last Filing

2026-03-09

UTI (179900) has 4 disclosed insider purchases and 17 disclosed disposals on record, filed by 5 distinct insiders. Together those filings cover ₩4.5B ($3.1M) in reported transaction value. The earliest filing StockDrifts holds for UTI is dated 2024-02-28; the most recent is 2026-03-09. Across these filings the average return since disclosure is +7.31%, 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
2026-08-14	BUY	유상신주취득	박철수 Park Cheol-soo	Managing Director	22.9K	-	-	-
2026-08-14	BUY	Market Buy	박철수 Park Cheol-soo	Managing Director	19.1K	-	-	-
2026-08-07	SELL	증여	박덕영 Deokyoung Park	CEO	-700.0K	₩2,230	-3.6%	₩1.6B ($1.1M)
2026-03-09	BUY	Market Buy	박덕영 Deokyoung Park	CEO	19.5K	-	-	-
2026-03-09	BUY	Market Buy	박덕영 Deokyoung Park	CEO	21.0K	₩20,350	+6.9%	₩427M ($296K)
2026-03-06	BUY	Market Buy	박덕영 Deokyoung Park	CEO	23.0K	-	-	-
2026-03-06	BUY	Market Buy	박덕영 Deokyoung Park	CEO	23.0K	₩20,900	+4.1%	₩481M ($334K)
2025-12-22	SELL	Market Sell	선우국현 Seonwoo Gukhyeon	vice president	-6.0K	₩19,170	-15.0%	₩115M ($80K)
2025-12-19	SELL	Market Sell	선우국현 Seonwoo Gukhyeon	vice president	-2.6K	₩19,380	-13.8%	₩50M ($35K)
2025-12-04	SELL	Market Sell	황재영 Jaeyoung Hwang	vice president	-15.0K	₩27,000	+18.3%	₩405M ($281K)
2025-12-03	SELL	Market Sell	황재영 Jaeyoung Hwang	vice president	-15.0K	₩27,800	+20.7%	₩417M ($290K)
2025-12-03	SELL	Market Sell	고태훈 Taehoon Go	Managing Director	-6.1K	₩27,800	+20.7%	₩169M ($117K)
2025-12-02	SELL	Market Sell	고태훈 Taehoon Go	Managing Director	-36.2K	₩27,500	+19.8%	₩995M ($691K)
2025-12-01	SELL	Market Sell	고태훈 Taehoon Go	Managing Director	-6.7K	₩28,250	+21.9%	₩188M ($131K)
2025-11-28	SELL	Market Sell	고태훈 Taehoon Go	Managing Director	-8.9K	₩27,700	+20.4%	₩245M ($170K)
2025-11-27	SELL	Market Sell	고태훈 Taehoon Go	Managing Director	-14.7K	₩25,900	+14.9%	₩381M ($265K)
2025-11-26	SELL	Market Sell	고태훈 Taehoon Go	Managing Director	-6.1K	₩26,100	+15.5%	₩160M ($111K)
2025-05-21	SELL	Market Sell	선우국현 Seonwoo Gukhyeon	vice president	-3.7K	₩19,670	-12.1%	₩73M ($50K)
2025-05-20	SELL	Market Sell	선우국현 Seonwoo Gukhyeon	vice president	-2.7K	₩20,100	-9.7%	₩54M ($38K)
2025-01-07	SELL	장외매도	황재영 Jaeyoung Hwang	vice president	-15.0K	₩25,400	+13.2%	₩381M ($265K)
2024-12-17	SELL	Market Sell	선우국현 Seonwoo Gukhyeon	vice president	-2.4K	₩21,400	-3.0%	₩51M ($36K)
2024-12-16	SELL	Market Sell	선우국현 Seonwoo Gukhyeon	vice president	-5.9K	₩21,300	-3.5%	₩126M ($88K)
2024-12-13	SELL	Market Sell	선우국현 Seonwoo Gukhyeon	vice president	-4.8K	₩21,600	-2.1%	₩103M ($72K)
2024-12-12	SELL	Market Sell	선우국현 Seonwoo Gukhyeon	vice president	-1.9K	₩21,400	-3.0%	₩41M ($28K)
2024-07-25	SELL	증여	선우국현 Seonwoo Gukhyeon	vice president	-1.5K	₩29,950	+26.4%	₩45M ($31K)
2024-07-11	SELL	증여	황재영 Jaeyoung Hwang	vice president	-25.0K	₩29,350	+24.9%	₩734M ($510K)
2024-02-28	SELL	Market Sell	김학철 Kim Hak-cheol	Internal director	-470	₩35,600	+38.1%	₩17M ($12K)

Frequently asked questions

Who has been buying UTI stock?: 5 distinct insiders have filed 4 disclosed insider purchases in UTI (179900), most recently on 2026-03-09. 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 UTI have?: UTI has 4 buy-side and 17 sell-side disclosures on record, covering ₩4.5B ($3.1M) in total reported value, spanning 2024-02-28 to 2026-03-09.
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.