Who has been buying UIL stock?

4 distinct insiders have filed 28 disclosed insider purchases in UIL (049520), most recently on 2026-04-07. 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 UIL have?

UIL has 28 buy-side and 5 sell-side disclosures on record, covering ₩2.1B ($1.5M) in total reported value, spanning 2017-08-23 to 2026-04-07.

Where does StockDrifts get UIL insider data?

From DART D001/D002 insider disclosures — the official filing system run by the Financial Supervisory Service (Korea). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from DART.

Do insider buys in Korean stocks predict returns?

Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean DART filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

UIL 049520

Company

유아이엘UIL

Insiders

Buys

Total Value

₩2.1B ($1.5M)

Avg Return

+11.15%

Last Filing

2026-04-07

UIL (049520) has 28 disclosed insider purchases and 5 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩2.1B ($1.5M) in reported transaction value. The earliest filing StockDrifts holds for UIL is dated 2017-08-23; the most recent is 2026-04-07. 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 +11.15%, 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
2026-04-07	BUY	Market Buy	케이티씨 KT	-	10.0K	₩3,910	+5.0%	₩39M ($27K)
2026-04-03	BUY	Market Buy	케이티씨 KT	-	5.0K	₩3,940	+4.2%	₩20M ($14K)
2026-04-02	BUY	Market Buy	케이티씨 KT	-	10.0K	₩3,900	+5.3%	₩39M ($27K)
2026-03-31	BUY	Market Buy	케이티씨 KT	-	10.0K	₩3,790	+8.3%	₩38M ($26K)
2026-03-23	BUY	신규보고	김용범 Yongbeom Kim	Internal director	4.0K	₩3,670	+4.1%	₩15M ($10K)
2026-02-24	BUY	Market Buy	케이티씨 KT	-	11.5K	₩4,085	-6.5%	₩47M ($33K)
2025-10-21	BUY	Market Buy	김시균 Kim Si-gyun	CEO	5.0K	₩3,125	+22.2%	₩16M ($11K)
2025-10-01	BUY	Market Buy	김시균 Kim Si-gyun	CEO	3.0K	₩3,235	+18.1%	₩10M ($7K)
2025-09-30	BUY	Market Buy	김시균 Kim Si-gyun	CEO	19.0K	₩3,225	+18.4%	₩61M ($43K)
2025-09-16	BUY	Market Buy	김시균 Kim Si-gyun	CEO	12.5K	₩3,270	+16.8%	₩41M ($28K)
2025-09-15	BUY	Market Buy	김시균 Kim Si-gyun	CEO	5.5K	₩3,275	+16.6%	₩18M ($13K)
2025-09-12	BUY	Market Buy	김시균 Kim Si-gyun	CEO	17.0K	₩3,300	+15.8%	₩56M ($39K)
2025-09-11	BUY	Market Buy	김시균 Kim Si-gyun	CEO	3.0K	₩3,300	+15.8%	₩10M ($7K)
2025-09-09	BUY	Market Buy	김시균 Kim Si-gyun	CEO	2.0K	₩3,260	+17.2%	₩7M ($5K)
2025-09-08	BUY	Market Buy	김시균 Kim Si-gyun	CEO	10.0K	₩3,235	+18.1%	₩32M ($22K)
2025-09-05	BUY	Market Buy	김시균 Kim Si-gyun	CEO	5.0K	₩3,220	+18.6%	₩16M ($11K)
2025-09-04	BUY	Market Buy	김시균 Kim Si-gyun	CEO	13.0K	₩3,210	+19.0%	₩42M ($29K)
2025-08-14	BUY	Market Buy	유아이엘홀딩스 UIL Holdings	-	40.0K	₩3,365	+13.5%	₩135M ($93K)
2025-08-08	BUY	Market Buy	유아이엘홀딩스 UIL Holdings	-	20.0K	₩3,435	+11.2%	₩69M ($48K)
2025-08-07	BUY	Market Buy	유아이엘홀딩스 UIL Holdings	-	10.0K	₩3,405	+12.2%	₩34M ($24K)
2025-08-06	BUY	Market Buy	유아이엘홀딩스 UIL Holdings	-	20.0K	₩3,530	+8.2%	₩71M ($49K)
2025-08-04	BUY	Market Buy	유아이엘홀딩스 UIL Holdings	-	30.0K	₩3,605	+6.0%	₩108M ($75K)
2025-05-19	BUY	PROGRAM	유아이엘홀딩스 UIL Holdings	-	6.0K	₩3,670	+4.1%	₩22M ($15K)
2025-05-16	BUY	PROGRAM	유아이엘홀딩스 UIL Holdings	-	30.0K	₩3,745	+2.0%	₩112M ($78K)
2025-05-15	BUY	PROGRAM	유아이엘홀딩스 UIL Holdings	-	14.0K	₩3,765	+1.5%	₩53M ($37K)
2025-03-21	SELL	임원퇴임	조영균 Youngkyun Cho	Managing Director	-127.5K	₩4,280	+10.8%	₩546M ($379K)
2025-03-21	SELL	임원퇴임	한정호 Han Jeong-ho	Outside Director	-6.0K	₩4,280	+10.8%	₩26M ($18K)
2025-03-21	SELL	임원퇴임	조정환 Jeonghwan Jo	Outside Director	-12.0K	₩4,280	+10.8%	₩51M ($36K)
2025-02-24	BUY	PROGRAM	한정호 Han Jeong-ho	Outside Director	2.0K	₩4,220	-9.5%	₩8M ($6K)
2025-02-24	BUY	PROGRAM	조영균 Youngkyun Cho	Managing Director	42.5K	₩4,220	-9.5%	₩179M ($125K)
2025-02-24	BUY	PROGRAM	김시균 Kim Si-gyun	CEO	15.5K	₩4,220	-9.5%	₩65M ($45K)
2025-02-24	BUY	PROGRAM	유아이엘홀딩스 UIL Holdings	-	4.0M	₩4,220	-9.5%	₩16.7B ($11.6M)
2025-02-24	BUY	PROGRAM	케이티씨 KT	-	1.3M	₩4,220	-9.5%	₩5.4B ($3.7M)
2025-02-24	BUY	PROGRAM	조정환 Jeonghwan Jo	Outside Director	4.0K	₩4,220	-9.5%	₩17M ($12K)
2025-02-06	BUY	Market Buy	한정호 Han Jeong-ho	Outside Director	4.0K	₩3,744	+2.0%	₩15M ($10K)
2024-11-15	BUY	Market Buy	김시균 Kim Si-gyun	CEO	1.0K	₩3,092	+23.5%	₩3M ($2K)
2024-11-14	BUY	Market Buy	김시균 Kim Si-gyun	CEO	23.5K	₩3,224	+18.5%	₩76M ($53K)
2024-11-13	BUY	Market Buy	김시균 Kim Si-gyun	CEO	6.5K	₩3,285	+16.3%	₩21M ($15K)
2024-05-24	SELL	Market Sell	김시균 Kim Si-gyun	CEO	-40.0K	₩4,995	+23.5%	₩200M ($139K)
2024-05-14	SELL	Market Sell	김시균 Kim Si-gyun	CEO	-15.0K	₩4,089	+6.6%	₩61M ($43K)
2024-05-13	SELL	Market Sell	김시균 Kim Si-gyun	CEO	-95.0K	₩4,089	+6.6%	₩388M ($270K)
2024-05-13	SELL	Market Sell	김시균 Kim Si-gyun	CEO	-52.4K	₩4,089	+6.6%	₩214M ($149K)
2024-05-10	SELL	Market Sell	김시균 Kim Si-gyun	CEO	-10.6K	₩3,562	-7.2%	₩38M ($26K)
2024-04-18	BUY	주식매수선택권	김시균 Kim Si-gyun	CEO	150.0K	₩3,568	+7.1%	₩535M ($372K)
2024-04-18	BUY	주식매수선택권	조영균 Youngkyun Cho	Managing Director	75.0K	₩3,568	+7.1%	₩268M ($186K)
2024-03-21	SELL	임원퇴임	김일하 Kim Il-ha	moving	-10.0K	₩3,308	-15.5%	₩33M ($23K)
2017-08-23	BUY	PROGRAM	유아이엘홀딩스 UIL Holdings	-	4.0M	₩4,880	-21.7%	₩19.4B ($13.4M)

Frequently asked questions

Who has been buying UIL stock?: 4 distinct insiders have filed 28 disclosed insider purchases in UIL (049520), most recently on 2026-04-07. 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 UIL have?: UIL has 28 buy-side and 5 sell-side disclosures on record, covering ₩2.1B ($1.5M) in total reported value, spanning 2017-08-23 to 2026-04-07.
Where does StockDrifts get UIL insider data?: From DART D001/D002 insider disclosures — the official filing system run by the Financial Supervisory Service (Korea). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from DART.
Do insider buys in Korean stocks predict returns?: Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean DART filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

Source filings

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 UIL. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.