Who has been buying Sial Holdings stock?

2 distinct insiders have filed 1 disclosed insider purchases in Sial Holdings (000480), most recently on 2026-02-05. 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 Sial Holdings have?

Sial Holdings has 1 buy-side and 29 sell-side disclosures on record, covering ₩4.3B ($3.0M) in total reported value, spanning 2024-02-06 to 2026-02-05.

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.

Sial Holdings 000480

Company

시알홀딩스Sial Holdings

Insiders

Buys

Total Value

₩4.3B ($3.0M)

Avg Return

+1.53%

Last Filing

2026-02-05

Sial Holdings (000480) has 1 disclosed insider purchases and 29 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩4.3B ($3.0M) in reported transaction value. The earliest filing StockDrifts holds for Sial Holdings is dated 2024-02-06; the most recent is 2026-02-05. Across these filings the average return since disclosure is +1.53%, 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
2026-09-10	SELL	증여	강문수 Kang Moon-soo	CEO	-34.4K	₩4,500	+2.1%	₩155M ($107K)
2026-02-05	SELL	증여	이화일 Lee Hwa-il	-	-100.0K	₩4,745	-7.1%	₩475M ($330K)
2026-02-04	SELL	증여	이화일 Lee Hwa-il	-	-102.4K	₩4,740	-7.2%	₩485M ($337K)
2025-09-22	SELL	시간외매매	이화일 Lee Hwa-il	-	-1.0M	₩4,975	-2.1%	₩5.0B ($3.5M)
2025-09-19	SELL	Market Sell	이화일 Lee Hwa-il	-	-5.0K	₩4,995	-1.7%	₩25M ($17K)
2025-09-18	SELL	Market Sell	이화일 Lee Hwa-il	-	-14.1K	₩5,000	-1.6%	₩70M ($49K)
2025-09-17	SELL	Market Sell	이화일 Lee Hwa-il	-	-6.6K	₩5,000	-1.6%	₩33M ($23K)
2025-09-16	SELL	Market Sell	이화일 Lee Hwa-il	-	-12.6K	₩5,000	-1.6%	₩63M ($44K)
2025-09-15	SELL	Market Sell	이화일 Lee Hwa-il	-	-23.2K	₩5,010	-1.4%	₩116M ($81K)
2025-09-12	SELL	Market Sell	이화일 Lee Hwa-il	-	-15.0K	₩5,010	-1.4%	₩75M ($52K)
2025-09-11	SELL	Market Sell	이화일 Lee Hwa-il	-	-23.2K	₩5,020	-1.2%	₩116M ($81K)
2025-09-10	SELL	Market Sell	이화일 Lee Hwa-il	-	-27.7K	₩5,040	-0.8%	₩140M ($97K)
2025-09-09	SELL	Market Sell	이화일 Lee Hwa-il	-	-15.6K	₩5,010	-1.4%	₩78M ($54K)
2025-09-08	SELL	Market Sell	이화일 Lee Hwa-il	-	-6.6K	₩4,990	-1.8%	₩33M ($23K)
2025-09-05	SELL	Market Sell	이화일 Lee Hwa-il	-	-704	₩4,990	-1.8%	₩4M ($2K)
2025-09-02	SELL	Market Sell	이화일 Lee Hwa-il	-	-9.0K	₩5,000	-1.6%	₩45M ($31K)
2025-09-01	SELL	Market Sell	이화일 Lee Hwa-il	-	-10.5K	₩5,000	-1.6%	₩53M ($37K)
2025-08-29	SELL	Market Sell	이화일 Lee Hwa-il	-	-16.2K	₩5,010	-1.4%	₩81M ($56K)
2025-08-28	SELL	Market Sell	이화일 Lee Hwa-il	-	-32.9K	₩5,000	-1.6%	₩164M ($114K)
2025-08-27	SELL	Market Sell	이화일 Lee Hwa-il	-	-25.9K	₩5,010	-1.4%	₩130M ($90K)
2025-08-26	SELL	Market Sell	이화일 Lee Hwa-il	-	-19.8K	₩5,000	-1.6%	₩99M ($69K)
2025-08-25	SELL	Market Sell	이화일 Lee Hwa-il	-	-27.4K	₩5,030	-1.0%	₩138M ($96K)
2025-07-25	SELL	Market Sell	이화일 Lee Hwa-il	-	-47.4K	₩5,420	+6.3%	₩257M ($178K)
2025-07-24	SELL	Market Sell	이화일 Lee Hwa-il	-	-37.2K	₩5,420	+6.3%	₩201M ($140K)
2025-07-23	SELL	Market Sell	이화일 Lee Hwa-il	-	-41.6K	₩5,450	+6.8%	₩227M ($158K)
2025-07-22	SELL	Market Sell	이화일 Lee Hwa-il	-	-35.9K	₩5,490	+7.5%	₩197M ($137K)
2025-07-21	SELL	Market Sell	이화일 Lee Hwa-il	-	-28.4K	₩5,520	+8.0%	₩157M ($109K)
2025-07-18	SELL	Market Sell	이화일 Lee Hwa-il	-	-49.9K	₩5,550	+8.5%	₩277M ($192K)
2025-07-17	SELL	Market Sell	이화일 Lee Hwa-il	-	-96.5K	₩5,580	+9.0%	₩538M ($374K)
2025-07-16	SELL	Market Sell	이화일 Lee Hwa-il	-	-60.6K	₩5,590	+9.1%	₩339M ($235K)
2025-07-15	SELL	Market Sell	이화일 Lee Hwa-il	-	-41.3K	₩5,540	+8.3%	₩229M ($159K)
2025-07-14	SELL	Market Sell	이화일 Lee Hwa-il	-	-19.4K	₩5,620	+9.6%	₩109M ($76K)
2025-07-11	SELL	Market Sell	이화일 Lee Hwa-il	-	-9.8K	₩5,610	+9.4%	₩55M ($38K)
2024-10-28	SELL	장외매도	이화일 Lee Hwa-il	-	-1.0M	₩5,660	+10.3%	₩5.7B ($3.9M)
2024-03-29	BUY	Market Buy	강문수 Kang Moon-soo	Managing Director	34.4K	₩6,070	-16.3%	₩209M ($145K)
2024-02-06	SELL	증여	이화일 Lee Hwa-il	-	-1.5M	₩6,220	+18.3%	₩9.3B ($6.5M)

Frequently asked questions

Who has been buying Sial Holdings stock?: 2 distinct insiders have filed 1 disclosed insider purchases in Sial Holdings (000480), most recently on 2026-02-05. 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 Sial Holdings have?: Sial Holdings has 1 buy-side and 29 sell-side disclosures on record, covering ₩4.3B ($3.0M) in total reported value, spanning 2024-02-06 to 2026-02-05.
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.