Who has been buying semi five stock?

1 distinct insiders have filed 1 disclosed insider purchases in semi five (490470), most recently on 2026-07-06. 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 semi five have?

semi five has 1 buy-side and 0 sell-side disclosures on record, covering ₩67M ($46K) in total reported value, spanning 2025-12-29 to 2026-07-06.

Where does StockDrifts get semi five 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.

semi five 490470

Company

세미파이브semi five

Insiders

Buys

Total Value

₩67M ($46K)

Avg Return

-6.17%

Last Filing

2026-07-06

semi five (490470) has 1 disclosed insider purchases and 0 disclosed disposals on record, filed by 1 distinct insiders. Together those filings cover ₩67M ($46K) in reported transaction value. The earliest filing StockDrifts holds for semi five is dated 2025-12-29; the most recent is 2026-07-06. 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 -6.17%, 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
2026-07-31	BUY	Market Buy	김종선 Kim Jong-seon	vice president	1.0K	₩16,490	+0.0%	₩13M ($9K)
2026-07-28	BUY	Market Buy	김종선 Kim Jong-seon	vice president	2.0K	₩15,160	+8.8%	₩34M ($23K)
2026-07-22	BUY	Market Buy	김종선 Kim Jong-seon	vice president	1.0K	₩17,220	-3.4%	₩17M ($12K)
2026-07-06	BUY	신규선임	이원균 Wonkyun Lee	Researcher	1.3K	₩19,750	-7.0%	₩26M ($18K)
2026-05-11	BUY	주식매수청구권 행사	조명현 Myeonghyeon Cho	CEO	3.0K	₩39,850	-9.3%	₩122M ($84K)
2026-04-17	BUY	PROGRAM	장인철 Incheol Jang	Researcher	500	₩38,100	-6.2%	₩19M ($13K)
2026-04-17	BUY	PROGRAM	장인철 Incheol Jang	Researcher	1.8K	₩38,100	-6.2%	₩67M ($46K)
2026-04-10	BUY	PROGRAM	이상길 Lee Sang-gil	Managing Director	3.2K	₩31,300	+14.2%	₩101M ($70K)
2026-04-10	BUY	PROGRAM	윤석현 Seokhyun Yoon	Managing Director	2.5K	₩31,300	+14.2%	₩78M ($54K)
2026-04-10	BUY	PROGRAM	백창기 Baek Chang-gi	Managing Director	5.4K	₩31,300	+14.2%	₩169M ($117K)
2026-04-10	BUY	PROGRAM	백창기 Baek Chang-gi	Managing Director	1.3K	₩31,300	+14.2%	₩41M ($28K)
2026-04-10	BUY	PROGRAM	김성수 Seongsu Kim	Managing Director	5.0K	₩31,300	+14.2%	₩157M ($109K)
2026-04-10	BUY	PROGRAM	이승열 Seungyeol Lee	Researcher	1.3K	₩31,300	+14.2%	₩39M ($27K)
2026-04-10	BUY	PROGRAM	이명주 Myeongju Lee	Managing Director	4.7K	₩31,300	+14.2%	₩146M ($101K)
2026-04-10	BUY	PROGRAM	김종인 Kim Jong-in	Researcher	2.5K	₩31,300	+14.2%	₩78M ($54K)
2026-04-10	BUY	PROGRAM	윤석현 Seokhyun Yoon	Managing Director	2.5K	₩31,300	+14.2%	₩78M ($54K)
2026-04-10	BUY	주식매수청구권 행사	이진언 Jin-eon Lee	vice president	36.4K	₩31,300	+14.2%	₩1.1B ($792K)
2026-04-10	BUY	주식매수선택권	이정주 Jeongju Lee	Managing Director	5.8K	₩31,300	+14.2%	₩183M ($127K)
2026-04-10	BUY	주식매수청구권 행사	김인성 Inseong Kim	Researcher	900	₩31,300	+14.2%	₩28M ($20K)
2026-04-10	BUY	PROGRAM	김석원 Kim Seok-won	vice president	3.5K	₩31,300	+14.2%	₩110M ($76K)
2026-04-10	BUY	PROGRAM	김준대 Kim Jun-dae	vice president	18.0K	₩31,300	+14.2%	₩563M ($391K)
2026-04-10	BUY	PROGRAM	박재훈 Jaehoon Park	Managing Director	10.0K	₩31,300	+14.2%	₩313M ($217K)
2026-04-01	BUY	신규선임	박영호 Youngho Park	Researcher	950	₩25,000	+43.0%	₩24M ($16K)
2026-04-01	BUY	신규선임	우세정 Woojeong	Managing Director	4.1K	₩25,000	+43.0%	₩103M ($71K)
2026-04-01	BUY	신규선임	임채덕 Lim Chae-deok	Researcher	2.5K	₩25,000	+43.0%	₩63M ($43K)
2026-01-05	BUY	신규선임	박경채 Park Kyung-chae	Researcher	4	₩28,700	-1.9%	₩115K ($80)
2025-12-30	BUY	PROGRAM	김석원 Kim Seok-won	vice president	6.3K	₩26,500	+6.2%	₩166M ($115K)
2025-12-30	BUY	주식매수선택권	김종기 Kim Jong-gi	Managing Director	3.0K	₩26,500	+6.2%	₩80M ($55K)
2025-12-30	BUY	PROGRAM	오흥철 Oh Heung-cheol	Researcher	3.2K	₩26,500	+6.2%	₩85M ($59K)
2025-12-30	BUY	주식매수선택권	조명현 Myeonghyeon Cho	CEO	1.7K	₩26,500	+6.2%	₩45M ($31K)
2025-12-30	BUY	PROGRAM	이상길 Lee Sang-gil	Managing Director	8.3K	₩26,500	+6.2%	₩221M ($153K)
2025-12-30	BUY	PROGRAM	김인성 Inseong Kim	Researcher	3.6K	₩26,500	+6.2%	₩95M ($66K)
2025-12-30	BUY	PROGRAM	박재훈 Jaehoon Park	Managing Director	4.2K	₩26,500	+6.2%	₩111M ($77K)
2025-12-30	BUY	PROGRAM	이정주 Jeongju Lee	Managing Director	1.6K	₩26,500	+6.2%	₩44M ($30K)
2025-12-30	BUY	PROGRAM	조동수 Jo Dong-su	vice president	12.5K	₩26,500	+6.2%	₩331M ($230K)
2025-12-30	BUY	PROGRAM	이진언 Jin-eon Lee	vice president	12.0K	₩26,500	+6.2%	₩318M ($221K)
2025-12-30	BUY	PROGRAM	홍원인 Hong Won-in	Managing Director	2.5K	₩26,500	+6.2%	₩66M ($46K)
2025-12-30	BUY	PROGRAM	김명식 Kim Myung-sik	Managing Director	3.0K	₩26,500	+6.2%	₩80M ($55K)
2025-12-30	BUY	PROGRAM	이승열 Seungyeol Lee	Researcher	1.5K	₩26,500	+6.2%	₩40M ($28K)
2025-12-30	BUY	PROGRAM	백창기 Baek Chang-gi	Managing Director	4.6K	₩26,500	+6.2%	₩122M ($85K)
2025-12-30	BUY	PROGRAM	허원창 Heo Won-chang	Managing Director	5.1K	₩26,500	+6.2%	₩135M ($94K)
2025-12-30	BUY	PROGRAM	장인철 Incheol Jang	Researcher	1.5K	₩26,500	+6.2%	₩40M ($28K)
2025-12-30	BUY	PROGRAM	김준대 Kim Jun-dae	vice president	2.1K	₩26,500	+6.2%	₩57M ($40K)
2025-12-30	BUY	PROGRAM	민준규 Min Jun-gyu	Managing Director	2.0K	₩26,500	+6.2%	₩53M ($37K)
2025-12-29	BUY	PROGRAM	이윤섭 Yunseop Lee	Other non-executive directors	526.3K	₩27,650	+1.8%	₩14.6B ($10.1M)
2025-12-29	BUY	PROGRAM	이정주 Jeongju Lee	Managing Director	8.5K	₩27,650	+1.8%	₩235M ($163K)
2025-12-29	BUY	신규상장	송용하 Song Yongha	vice president	8.4K	₩27,650	+1.8%	₩232M ($161K)
2025-12-29	BUY	PROGRAM	조동수 Jo Dong-su	vice president	27.0K	₩27,650	+1.8%	₩747M ($518K)
2025-12-29	BUY	PROGRAM	김석원 Kim Seok-won	vice president	18.4K	₩27,650	+1.8%	₩510M ($354K)
2025-12-29	BUY	신규상장	김종기 Kim Jong-gi	Managing Director	18.4K	₩27,650	+1.8%	₩510M ($354K)

Showing the 50 most recent of 66 filings.

Frequently asked questions

Who has been buying semi five stock?: 1 distinct insiders have filed 1 disclosed insider purchases in semi five (490470), most recently on 2026-07-06. 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 semi five have?: semi five has 1 buy-side and 0 sell-side disclosures on record, covering ₩67M ($46K) in total reported value, spanning 2025-12-29 to 2026-07-06.
Where does StockDrifts get semi five 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 semi five. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.