Who has been buying RigaChem Bio stock?

1 distinct insiders have filed 1 disclosed insider purchases in RigaChem Bio (141080), most recently on 2026-03-31. 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 RigaChem Bio have?

RigaChem Bio has 1 buy-side and 0 sell-side disclosures on record, covering ₩70M ($49K) in total reported value, spanning 2024-03-28 to 2026-03-31.

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.

RigaChem Bio 141080

Company

리가켐바이오RigaChem Bio

Insiders

Buys

Total Value

₩70M ($49K)

Avg Return

+141.18%

Last Filing

2026-03-31

RigaChem Bio (141080) has 1 disclosed insider purchases and 0 disclosed disposals on record, filed by 1 distinct insiders. Together those filings cover ₩70M ($49K) in reported transaction value. The earliest filing StockDrifts holds for RigaChem Bio is dated 2024-03-28; the most recent is 2026-03-31. Across these filings the average return since disclosure is +141.18%, 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
2026-08-04	BUY	Market Buy	김용주 Yongju Kim	Chairman	17.7K	₩109,900	+0.0%	₩1.5B ($1.1M)
2026-07-24	BUY	제3자배정유상증자	PANORIONCORP.LIMITED	-	679.6K	₩96,100	+0.0%	₩65.3B ($45.4M)
2026-07-24	BUY	CB인수	PANORIONCORP.LIMITED	-	350.1K	₩96,100	+0.0%	₩33.6B ($23.4M)
2026-03-31	SELL	임원퇴임	김형석 Hyungseok Kim	Internal director	-1.5K	₩192,000	-5.0%	₩286M ($199K)
2024-07-01	BUY	Market Buy	김형석 Hyungseok Kim	Internal director	940	₩74,800	+141.2%	₩70M ($49K)
2024-03-30	BUY	유상신주취득	PANORIONCORP.LIMITED	-	8.0M	₩73,800	+144.4%	₩587.7B ($408.1M)
2024-03-29	BUY	신규선임	김형석 Hyungseok Kim	Internal director	550	₩74,800	+141.2%	₩41M ($29K)
2024-03-29	SELL	장외매도	박세진 Sejin Park	president	-200.0K	₩74,800	-141.2%	₩15.0B ($10.4M)
2024-03-29	SELL	장외매도	김용주 Yongju Kim	CEO	-1.2M	₩74,800	-141.2%	₩89.8B ($62.3M)
2024-03-29	BUY	장외매수	PANORIONCORP.LIMITED	-	1.4M	₩74,800	+141.2%	₩104.7B ($72.7M)
2024-03-28	SELL	임원퇴임	조영락 Jo Yeong-rak	Senior Vice President	-52.4K	₩74,100	-143.4%	₩3.9B ($2.7M)

Frequently asked questions

Who has been buying RigaChem Bio stock?: 1 distinct insiders have filed 1 disclosed insider purchases in RigaChem Bio (141080), most recently on 2026-03-31. 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 RigaChem Bio have?: RigaChem Bio has 1 buy-side and 0 sell-side disclosures on record, covering ₩70M ($49K) in total reported value, spanning 2024-03-28 to 2026-03-31.
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.