Who has been buying Open Edge Technology stock?

6 distinct insiders have filed 5 disclosed insider purchases in Open Edge Technology (394280), most recently on 2026-05-12. 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 Open Edge Technology have?

Open Edge Technology has 5 buy-side and 31 sell-side disclosures on record, covering ₩4.8B ($3.3M) in total reported value, spanning 2024-05-09 to 2026-05-12.

Where does StockDrifts get Open Edge Technology 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.

Open Edge Technology 394280

Company

오픈엣지테크놀로지Open Edge Technology

Insiders

Buys

Total Value

₩4.8B ($3.3M)

Avg Return

-8.97%

Last Filing

2026-05-12

Open Edge Technology (394280) has 5 disclosed insider purchases and 31 disclosed disposals on record, filed by 6 distinct insiders. Together those filings cover ₩4.8B ($3.3M) in reported transaction value. The earliest filing StockDrifts holds for Open Edge Technology is dated 2024-05-09; the most recent is 2026-05-12. 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 -8.97%, 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
2026-08-03	SELL	계약기간만료	이우연 Wooyeon Lee	(Management Director)	-2.1K	₩9,390	-0.1%	₩20M ($14K)
2026-08-03	SELL	계약기간만료	이성현 Seonghyeon Lee	CEO	-732.3K	₩9,390	-8.6%	₩6.9B ($4.8M)
2026-05-12	SELL	Market Sell	문상훈 Sang-Hoon Moon	Managing Director	-1.0K	₩18,500	+7.7%	₩19M ($13K)
2026-05-08	SELL	Market Sell	문상훈 Sang-Hoon Moon	Managing Director	-1.0K	₩19,790	+13.7%	₩20M ($14K)
2026-05-08	SELL	Market Sell	문상훈 Sang-Hoon Moon	Managing Director	-1.0K	₩19,790	+13.7%	₩20M ($14K)
2026-04-08	BUY	주식매수청구권 행사	이우연 Wooyeon Lee	(Management Director)	5.0K	₩15,730	+11.9%	₩79M ($55K)
2026-04-08	SELL	주식매수청구권 행사	이우연 Wooyeon Lee	(Management Director)	-5.0K	₩15,730	-11.9%	₩79M ($55K)
2026-04-08	BUY	제3자배정유상증자	에이티넘성장투자조합2023 Atinum Growth Investment Association 2023	-	3.3M	₩15,730	+28.1%	₩51.2B ($35.5M)
2026-03-23	SELL	Market Sell	정회인 Jeong Hoe-in	vice president	-788	₩16,970	-3.8%	₩13M ($9K)
2026-03-23	SELL	Market Sell	정회인 Jeong Hoe-in	vice president	-1.8K	₩16,970	-3.8%	₩31M ($21K)
2026-03-23	SELL	Market Sell	정회인 Jeong Hoe-in	vice president	-116	₩16,970	-3.8%	₩2M ($1K)
2026-02-26	SELL	증여	문상훈 Sang-Hoon Moon	Managing Director	-20.0K	-	-	-
2026-02-11	SELL	Market Sell	이성현 Seonghyeon Lee	CEO	-7.8K	₩17,360	+8.1%	₩135M ($94K)
2026-02-11	SELL	Market Sell	이성현 Seonghyeon Lee	CEO	-7.8K	₩17,360	-1.4%	₩135M ($94K)
2026-02-10	SELL	Market Sell	이성현 Seonghyeon Lee	CEO	-33.0K	₩16,740	+4.7%	₩552M ($383K)
2026-02-10	SELL	Market Sell	이성현 Seonghyeon Lee	CEO	-33.0K	₩16,740	-5.2%	₩552M ($383K)
2026-02-09	SELL	Market Sell	이성현 Seonghyeon Lee	CEO	-28.6K	₩16,150	-9.0%	₩461M ($320K)
2026-02-09	SELL	Market Sell	이성현 Seonghyeon Lee	CEO	-28.6K	₩16,150	+1.2%	₩461M ($320K)
2026-02-04	BUY	기타	정회인 Jeong Hoe-in	vice president	2.7K	₩15,410	+3.5%	₩42M ($29K)
2026-02-04	BUY	기타	문상훈 Sang-Hoon Moon	Managing Director	6.8K	₩15,410	+3.5%	₩104M ($72K)
2026-01-30	SELL	Market Sell	이성현 Seonghyeon Lee	CEO	-8.7K	₩15,900	-0.3%	₩138M ($96K)
2026-01-30	SELL	Market Sell	이성현 Seonghyeon Lee	CEO	-8.7K	₩15,900	-10.8%	₩138M ($96K)
2026-01-19	BUY	기타	이우연 Wooyeon Lee	(Management Director)	629	₩14,130	+24.6%	₩9M ($6K)
2026-01-19	BUY	기타	이성현 Seonghyeon Lee	CEO	219.7K	₩14,130	+24.6%	₩3.1B ($2.2M)
2026-01-19	BUY	기타	황인조 Injo Hwang	Internal director	21.8K	₩14,130	+24.6%	₩308M ($214K)
2025-10-17	BUY	주식매수청구권 행사	이우연 Wooyeon Lee	(Management Director)	7.5K	₩12,720	+25.4%	₩95M ($66K)
2025-10-17	SELL	주식매수청구권 행사	이우연 Wooyeon Lee	(Management Director)	-7.5K	₩12,720	-25.4%	₩95M ($66K)
2025-09-19	SELL	Market Sell	황인조 Injo Hwang	Internal director	-10.0K	₩12,650	-26.1%	₩127M ($88K)
2025-09-18	SELL	Market Sell	이성현 Seonghyeon Lee	CEO	-5.7K	₩12,560	-27.0%	₩72M ($50K)
2025-09-18	SELL	Market Sell	황인조 Injo Hwang	Internal director	-20.0K	₩12,560	-27.0%	₩251M ($174K)
2025-09-17	SELL	Market Sell	이성현 Seonghyeon Lee	CEO	-10.9K	₩11,960	-33.4%	₩131M ($91K)
2025-09-17	SELL	Market Sell	황인조 Injo Hwang	Internal director	-7.1K	₩11,960	-33.4%	₩85M ($59K)
2025-09-16	SELL	Market Sell	황인조 Injo Hwang	Internal director	-10.1K	₩12,350	-29.1%	₩124M ($86K)
2025-09-16	SELL	Market Sell	이성현 Seonghyeon Lee	CEO	-8.8K	₩12,350	-29.1%	₩108M ($75K)
2025-09-15	SELL	Market Sell	황인조 Injo Hwang	Internal director	-9.2K	₩12,370	-28.9%	₩114M ($79K)
2025-09-15	SELL	Market Sell	이성현 Seonghyeon Lee	CEO	-2.1K	₩12,370	-28.9%	₩27M ($18K)
2025-09-12	SELL	Market Sell	이성현 Seonghyeon Lee	CEO	-689	₩12,300	-29.7%	₩8M ($6K)
2025-09-12	SELL	Market Sell	황인조 Injo Hwang	Internal director	-4.5K	₩12,300	-29.7%	₩55M ($38K)
2025-09-11	SELL	Market Sell	황인조 Injo Hwang	Internal director	-700	₩12,280	-29.9%	₩9M ($6K)
2025-08-01	SELL	Market Sell	문상훈 Sang-Hoon Moon	Managing Director	-431	₩12,240	-30.3%	₩5M ($4K)
2025-07-31	SELL	Market Sell	문상훈 Sang-Hoon Moon	Managing Director	-17	₩12,960	-23.1%	₩220K ($153)
2025-07-30	SELL	Market Sell	문상훈 Sang-Hoon Moon	Managing Director	-783	₩13,110	-21.7%	₩10M ($7K)
2025-05-15	BUY	기타	정회인 Jeong Hoe-in	vice president	6.0K	₩12,980	+22.9%	₩78M ($54K)
2025-04-08	SELL	주식매수청구권 행사	이우연 Wooyeon Lee	(Management Director)	-10.0K	₩11,200	-42.4%	₩112M ($78K)
2025-04-08	BUY	주식매수청구권 행사	이우연 Wooyeon Lee	(Management Director)	10.0K	₩11,200	+42.4%	₩112M ($78K)
2025-02-01	BUY	신규선임	문상훈 Sang-Hoon Moon	Managing Director	70.0K	₩14,120	+13.0%	₩988M ($686K)
2025-01-08	BUY	Market Buy	이성현 Seonghyeon Lee	CEO	1.0K	₩13,820	+15.4%	₩14M ($10K)
2025-01-07	BUY	Market Buy	이성현 Seonghyeon Lee	CEO	5.8K	₩13,650	+16.9%	₩79M ($55K)
2025-01-07	BUY	Market Buy	황인조 Injo Hwang	Internal director	5.4K	₩13,650	+16.9%	₩74M ($51K)
2025-01-06	BUY	Market Buy	이우연 Wooyeon Lee	(Management Director)	4.2K	₩14,780	+7.9%	₩62M ($43K)

Showing the 50 most recent of 58 filings.

Frequently asked questions

Who has been buying Open Edge Technology stock?: 6 distinct insiders have filed 5 disclosed insider purchases in Open Edge Technology (394280), most recently on 2026-05-12. 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 Open Edge Technology have?: Open Edge Technology has 5 buy-side and 31 sell-side disclosures on record, covering ₩4.8B ($3.3M) in total reported value, spanning 2024-05-09 to 2026-05-12.
Where does StockDrifts get Open Edge Technology 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 Open Edge Technology. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.