Who has been buying AP system stock?

2 distinct insiders have filed 2 disclosed insider purchases in AP system (265520), most recently on 2026-04-24. 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 AP system have?

AP system has 2 buy-side and 0 sell-side disclosures on record, covering ₩20M ($14K) in total reported value, spanning 2024-05-14 to 2026-04-24.

Where does StockDrifts get AP system 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.

AP system 265520

Company

AP시스템AP system

Insiders

Buys

Total Value

₩20M ($14K)

Avg Return

+12.52%

Last Filing

2026-04-24

AP system (265520) has 2 disclosed insider purchases and 0 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩20M ($14K) in reported transaction value. The earliest filing StockDrifts holds for AP system is dated 2024-05-14; the most recent is 2026-04-24. 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 +12.52%, 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
2026-04-24	BUY	PROGRAM	이태훈 Taehoon Lee	Managing Director	2.4K	₩24,150	+8.5%	₩58M ($40K)
2026-04-24	BUY	PROGRAM	배준용 Junyong Bae	vice president	4.5K	₩24,150	+8.5%	₩109M ($75K)
2026-04-24	BUY	PROGRAM	황명진 Myeongjin Hwang	Managing Director	3.6K	₩24,150	+8.5%	₩87M ($60K)
2026-04-24	BUY	PROGRAM	박상현 Sanghyun Park	Managing Director	3.6K	₩24,150	+8.5%	₩87M ($60K)
2026-04-24	BUY	PROGRAM	정희광 Jeong Hee-kwang	Managing Director	3.6K	₩24,150	+8.5%	₩87M ($60K)
2026-04-24	BUY	PROGRAM	나용균 Na Yong-gyun	Managing Director	3.6K	₩24,150	+8.5%	₩87M ($60K)
2026-04-24	BUY	PROGRAM	공석민 Gong Seok-min	moving	2.4K	₩24,150	+8.5%	₩58M ($40K)
2026-04-24	BUY	PROGRAM	유형석 Yoo Hyeong-seok	Managing Director	2.4K	₩24,150	+8.5%	₩58M ($40K)
2026-04-24	BUY	PROGRAM	유정필 Yoo Jeong-pil	Managing Director	2.4K	₩24,150	+8.5%	₩58M ($40K)
2026-04-24	BUY	PROGRAM	장성욱 Seongwook Jang	Managing Director	2.4K	₩24,150	+8.5%	₩58M ($40K)
2026-04-24	BUY	PROGRAM	김상순 Kim Sang-soon	Managing Director	2.4K	₩24,150	+8.5%	₩58M ($40K)
2026-04-24	BUY	PROGRAM	김현중 Hyunjoong Kim	Managing Director	2.4K	₩24,150	+8.5%	₩58M ($40K)
2026-04-24	BUY	PROGRAM	김학철 Kim Hak-cheol	moving	2.4K	₩24,150	+8.5%	₩58M ($40K)
2026-04-24	BUY	PROGRAM	노성화 Seonghwa Noh	moving	2.4K	₩24,150	+8.5%	₩58M ($40K)
2026-04-24	BUY	PROGRAM	모종규 Mo Jong-gyu	vice president	4.5K	₩24,150	+8.5%	₩109M ($75K)
2026-04-24	BUY	PROGRAM	유호선 Yoo Ho-seon	CEO	18.0K	₩24,150	+8.5%	₩435M ($302K)
2026-04-24	BUY	PROGRAM	진대규 Jin Dae-gyu	Managing Director	2.4K	₩24,150	+8.5%	₩58M ($40K)
2025-01-31	BUY	Market Buy	모종규 Mo Jong-gyu	vice president	567	₩16,560	+38.0%	₩9M ($7K)
2024-05-14	BUY	Market Buy	김홍석 Hongseok Kim	vice president	400	₩26,250	-12.9%	₩11M ($7K)

Frequently asked questions

Who has been buying AP system stock?: 2 distinct insiders have filed 2 disclosed insider purchases in AP system (265520), most recently on 2026-04-24. 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 AP system have?: AP system has 2 buy-side and 0 sell-side disclosures on record, covering ₩20M ($14K) in total reported value, spanning 2024-05-14 to 2026-04-24.
Where does StockDrifts get AP system 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 AP system. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.