Who has been buying Curiox Biosystems stock?

5 distinct insiders have filed 1 disclosed insider purchases in Curiox Biosystems (445680), most recently on 2026-04-09. 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 Curiox Biosystems have?

Curiox Biosystems has 1 buy-side and 14 sell-side disclosures on record, covering ₩22.3B ($15.5M) in total reported value, spanning 2024-08-07 to 2026-04-09.

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.

Curiox Biosystems 445680

Company

큐리옥스바이오시스템즈Curiox Biosystems

Insiders

Buys

Total Value

₩22.3B ($15.5M)

Avg Return

-90.18%

Last Filing

2026-04-09

Curiox Biosystems (445680) has 1 disclosed insider purchases and 14 disclosed disposals on record, filed by 5 distinct insiders. Together those filings cover ₩22.3B ($15.5M) in reported transaction value. The earliest filing StockDrifts holds for Curiox Biosystems is dated 2024-08-07; the most recent is 2026-04-09. Across these filings the average return since disclosure is -90.18%, 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
2026-08-12	SELL	Market Sell	김남용 Namyong Kim	CEO	-105.5K	₩42,300	+0.0%	₩4.5B ($3.1M)
2026-08-03	BUY	주식매수선택권	박영호 Youngho Park	Managing Director	3.0K	₩38,600	+6.7%	₩116M ($80K)
2026-04-09	SELL	Market Sell	정홍태 Hongtae Jeong	vice president	-578	₩76,900	-16.5%	₩44M ($31K)
2026-04-08	SELL	Market Sell	정홍태 Hongtae Jeong	vice president	-4.4K	₩84,600	-5.9%	₩372M ($259K)
2026-04-07	SELL	Market Sell	정홍태 Hongtae Jeong	vice president	-2.2K	₩78,800	-13.7%	₩173M ($120K)
2026-04-03	BUY	주식매수선택권	노희준 Heejun Noh	moving	1.2K	₩77,400	+15.8%	₩90M ($63K)
2026-04-03	BUY	주식매수선택권	박영호 Youngho Park	Managing Director	9.1K	₩77,400	+15.8%	₩704M ($489K)
2026-04-03	BUY	주식매수선택권	정홍태 Hongtae Jeong	vice president	30.0K	₩77,400	+15.8%	₩2.3B ($1.6M)
2026-04-03	BUY	주식매수선택권	박성철 Seongcheol Park	Managing Director	16.0K	₩77,400	+15.8%	₩1.2B ($860K)
2025-10-22	BUY	콜옵션권리행사에따른주식취득	김남용 Namyong Kim	CEO	192.0K	₩71,000	+50.3%	₩13.6B ($9.5M)
2025-10-14	SELL	Market Sell	박영호 Youngho Park	Managing Director	-3.0K	₩70,200	-52.0%	₩211M ($146K)
2025-10-10	BUY	Market Buy	정홍태 Hongtae Jeong	vice president	200	₩83,300	+28.1%	₩17M ($12K)
2025-10-10	SELL	Market Sell	정홍태 Hongtae Jeong	vice president	-10.0K	₩83,300	-28.1%	₩833M ($578K)
2025-10-01	SELL	Market Sell	노희준 Heejun Noh	moving	-3.0K	₩71,700	-48.8%	₩215M ($149K)
2025-09-26	SELL	Market Sell	노희준 Heejun Noh	moving	-3.0K	₩62,900	-69.6%	₩189M ($131K)
2025-09-22	BUY	주식매수선택권	정홍태 Hongtae Jeong	vice president	1.5K	₩57,100	+86.9%	₩86M ($59K)
2025-09-22	BUY	주식매수선택권	박영호 Youngho Park	Managing Director	600	₩57,100	+86.9%	₩34M ($24K)
2025-08-28	SELL	Market Sell	ZIGVenturesLimited	-	-8.0K	₩41,500	-157.1%	₩332M ($231K)
2025-08-27	SELL	Market Sell	ZIGVenturesLimited	-	-60.0K	₩42,800	-149.3%	₩2.6B ($1.8M)
2025-08-26	SELL	Market Sell	ZIGVenturesLimited	-	-130.0K	₩43,550	-145.0%	₩5.7B ($3.9M)
2025-08-25	SELL	Market Sell	ZIGVenturesLimited	-	-92.0K	₩40,600	-162.8%	₩3.7B ($2.6M)
2025-08-22	SELL	Market Sell	ZIGVenturesLimited	-	-62.5K	₩40,000	-166.8%	₩2.5B ($1.7M)
2025-08-21	SELL	Market Sell	ZIGVenturesLimited	-	-120.0K	₩38,550	-176.8%	₩4.6B ($3.2M)
2025-08-20	SELL	Market Sell	박성철 Seongcheol Park	Managing Director	-22.3K	₩37,000	-188.4%	₩826M ($574K)
2025-06-04	BUY	주식매수선택권	박영호 Youngho Park	Managing Director	6.5K	₩30,000	+255.7%	₩195M ($136K)
2025-06-04	BUY	주식매수선택권	노희준 Heejun Noh	moving	1.5K	₩30,000	+255.7%	₩45M ($32K)
2025-02-17	BUY	주식매수선택권	정홍태 Hongtae Jeong	vice president	2.0K	₩15,200	+602.0%	₩30M ($21K)
2025-02-17	BUY	주식매수선택권	박성철 Seongcheol Park	Managing Director	2.2K	₩15,200	+602.0%	₩33M ($23K)
2024-12-12	BUY	주식매수선택권	노희준 Heejun Noh	moving	6.9K	₩19,190	+456.0%	₩133M ($92K)
2024-12-12	BUY	주식매수선택권	박영호 Youngho Park	Managing Director	7.4K	₩19,190	+456.0%	₩142M ($99K)
2024-12-12	BUY	주식매수선택권	정홍태 Hongtae Jeong	vice president	1.5K	₩19,190	+456.0%	₩29M ($20K)
2024-09-10	BUY	주식매수선택권	박영호 Youngho Park	Managing Director	2.7K	₩18,690	+470.9%	₩50M ($35K)
2024-09-10	BUY	주식매수선택권	정홍태 Hongtae Jeong	vice president	11.0K	₩18,690	+470.9%	₩206M ($143K)
2024-08-20	BUY	콜옵션권리행사에따른주식취득	김남용 Namyong Kim	CEO	355.2K	₩21,900	+387.2%	₩7.8B ($5.4M)
2024-08-07	BUY	무상신주취득	ZIGVenturesLimited	-	979.4K	₩20,600	+418.0%	₩20.2B ($14.0M)
2024-08-07	BUY	무상신주취득	박영호 Youngho Park	Managing Director	1.2K	₩20,600	+418.0%	₩25M ($17K)
2024-08-07	BUY	무상신주취득	김남용 Namyong Kim	CEO	1.2M	₩20,600	+418.0%	₩24.4B ($16.9M)
2024-08-07	BUY	무상신주취득	노희준 Heejun Noh	moving	1.6K	₩20,600	+418.0%	₩34M ($24K)
2024-08-07	BUY	무상신주취득	박성철 Seongcheol Park	Managing Director	5.0K	₩20,600	+418.0%	₩103M ($72K)
2024-08-07	BUY	무상신주취득	정홍태 Hongtae Jeong	vice president	14.0K	₩20,600	+418.0%	₩289M ($200K)

Frequently asked questions

Who has been buying Curiox Biosystems stock?: 5 distinct insiders have filed 1 disclosed insider purchases in Curiox Biosystems (445680), most recently on 2026-04-09. 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 Curiox Biosystems have?: Curiox Biosystems has 1 buy-side and 14 sell-side disclosures on record, covering ₩22.3B ($15.5M) in total reported value, spanning 2024-08-07 to 2026-04-09.
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.