Who has been buying April Bio stock?

6 distinct insiders have filed 1 disclosed insider purchases in April Bio (397030), most recently on 2026-04-13. 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 April Bio have?

April Bio has 1 buy-side and 19 sell-side disclosures on record, covering ₩8.5B ($5.9M) in total reported value, spanning 2023-11-01 to 2026-04-13.

Where does StockDrifts get April Bio 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.

April Bio 397030

Company

에이프릴바이오April Bio

Insiders

Buys

Total Value

₩8.5B ($5.9M)

Avg Return

-83.20%

Last Filing

2026-04-13

April Bio (397030) has 1 disclosed insider purchases and 19 disclosed disposals on record, filed by 6 distinct insiders. Together those filings cover ₩8.5B ($5.9M) in reported transaction value. The earliest filing StockDrifts holds for April Bio is dated 2023-11-01; the most recent is 2026-04-13. 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 -83.20%, 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
2026-07-24	BUY	제3자배정유상증자	티케이지휴켐스 TKG Huchems	-	3.5M	₩24,800	+0.0%	₩86.6B ($60.1M)
2026-07-23	SELL	장외매도	차상훈 Cha Sang-hoon	CEO	-1.8M	₩26,550	+16.6%	₩58.2B ($40.4M)
2026-04-13	BUY	주식매수선택권	진홍국 Crimson Noodles	moving	20.0K	₩52,900	+16.6%	₩1.1B ($735K)
2026-04-13	BUY	주식매수선택권	허병웅 Heo Byeong-woong	moving	17.5K	₩52,900	+16.6%	₩926M ($643K)
2026-04-13	BUY	주식매수선택권	서상준 Sangjun Seo	torture	20.0K	₩52,900	+16.6%	₩1.1B ($735K)
2026-02-09	SELL	Market Sell	진홍국 Crimson Noodles	moving	-18.5K	₩59,500	-22.7%	₩1.1B ($763K)
2026-02-06	SELL	Market Sell	진홍국 Crimson Noodles	moving	-8.3K	₩59,100	-23.5%	₩491M ($341K)
2026-02-05	SELL	Market Sell	진홍국 Crimson Noodles	moving	-5.3K	₩64,600	-13.0%	₩341M ($237K)
2026-02-04	SELL	Market Sell	진홍국 Crimson Noodles	moving	-8.0K	₩61,700	-18.3%	₩491M ($341K)
2026-02-03	SELL	Market Sell	지수선 exponential line	Managing Director	-2.5K	₩62,700	-16.4%	₩157M ($109K)
2026-02-03	SELL	Market Sell	서상준 Sangjun Seo	torture	-33.0K	₩62,700	-16.4%	₩2.1B ($1.4M)
2026-02-03	SELL	Market Sell	진홍국 Crimson Noodles	moving	-5.5K	₩62,700	-16.4%	₩347M ($241K)
2026-02-03	BUY	Market Buy	진홍국 Crimson Noodles	moving	30	₩62,700	+16.4%	₩2M ($1K)
2026-01-15	SELL	Market Sell	한재규 Jae-gyu Han	moving	-8.0K	₩50,500	-44.5%	₩404M ($281K)
2026-01-12	BUY	주식매수선택권	진홍국 Crimson Noodles	moving	55.5K	₩54,600	+33.7%	₩3.0B ($2.1M)
2026-01-12	BUY	주식매수선택권	지수선 exponential line	Managing Director	2.5K	₩54,600	+33.7%	₩137M ($95K)
2026-01-12	BUY	주식매수선택권	서상준 Sangjun Seo	torture	33.0K	₩54,600	+33.7%	₩1.8B ($1.3M)
2026-01-12	BUY	주식매수선택권	한재규 Jae-gyu Han	moving	6.0K	₩54,600	+33.7%	₩328M ($228K)
2026-01-12	BUY	주식매수선택권	김종민 Kim Jong-min	Managing Director	10.0K	₩54,600	+33.7%	₩546M ($379K)
2025-12-23	SELL	Market Sell	김진택 Jintaek Kim	Managing Director	-8.0K	₩46,800	-56.0%	₩375M ($261K)
2025-12-02	SELL	Market Sell	서상준 Sangjun Seo	torture	-30.0K	₩40,300	-81.1%	₩1.2B ($840K)
2025-11-17	SELL	Market Sell	김진택 Jintaek Kim	Managing Director	-3.0K	₩39,950	-82.7%	₩120M ($83K)
2025-11-14	BUY	주식매수선택권	김종민 Kim Jong-min	Managing Director	30.0K	₩38,450	+89.9%	₩1.2B ($801K)
2025-11-14	BUY	주식매수선택권	서상준 Sangjun Seo	torture	30.0K	₩38,450	+89.9%	₩1.2B ($801K)
2025-11-13	SELL	Market Sell	김종민 Kim Jong-min	Managing Director	-4.7K	₩38,150	-91.3%	₩180M ($125K)
2025-11-06	SELL	Market Sell	김종민 Kim Jong-min	Managing Director	-900	₩34,750	-110.1%	₩31M ($22K)
2025-11-05	SELL	Market Sell	김종민 Kim Jong-min	Managing Director	-800	₩36,700	-98.9%	₩29M ($20K)
2025-11-04	SELL	Market Sell	김종민 Kim Jong-min	Managing Director	-300	₩38,400	-90.1%	₩12M ($8K)
2025-09-09	SELL	증여	김진택 Jintaek Kim	Managing Director	-17.0K	₩25,200	-189.7%	₩428M ($298K)
2025-09-03	SELL	Market Sell	지수선 exponential line	Managing Director	-13.3K	₩24,850	-193.8%	₩331M ($230K)
2025-09-01	SELL	Market Sell	서상준 Sangjun Seo	torture	-25.0K	₩23,200	-214.7%	₩580M ($403K)
2025-08-11	BUY	주식매수선택권	지수선 exponential line	Managing Director	4.1K	₩20,350	+258.7%	₩83M ($58K)
2025-08-11	BUY	주식매수선택권	서상준 Sangjun Seo	torture	13.0K	₩20,350	+258.7%	₩265M ($184K)
2025-08-11	BUY	주식매수선택권	지수선 exponential line	Managing Director	9.2K	₩20,350	+258.7%	₩187M ($130K)
2025-07-31	SELL	Market Sell	지수선 exponential line	Managing Director	-2.0K	₩21,150	-245.2%	₩42M ($29K)
2025-07-30	SELL	Market Sell	지수선 exponential line	Managing Director	-8.8K	₩21,150	-245.2%	₩186M ($129K)
2025-05-12	BUY	주식매수선택권	서상준 Sangjun Seo	vice president	12.0K	₩15,450	+372.5%	₩185M ($129K)
2025-05-12	BUY	주식매수선택권	한재규 Jae-gyu Han	moving	15.0K	₩15,450	+372.5%	₩232M ($161K)
2025-02-10	BUY	주식매수선택권	한재규 Jae-gyu Han	moving	14.0K	₩16,720	+336.6%	₩234M ($163K)
2025-02-10	BUY	주식매수선택권	김진택 Jintaek Kim	Managing Director	7.0K	₩16,720	+336.6%	₩117M ($81K)
2024-10-14	BUY	주식매수선택권	지수선 exponential line	Managing Director	10.8K	₩24,450	+198.6%	₩264M ($183K)
2024-07-15	BUY	주식매수선택권	김진택 Jintaek Kim	Managing Director	13.0K	₩20,550	+255.2%	₩267M ($186K)
2024-07-15	BUY	주식매수선택권	김진택 Jintaek Kim	Managing Director	62.0K	₩20,550	+255.2%	₩1.3B ($885K)
2024-07-15	BUY	주식매수선택권	한재규 Jae-gyu Han	moving	14.6K	₩20,550	+255.2%	₩300M ($208K)
2024-04-15	BUY	주식매수선택권	한재규 Jae-gyu Han	moving	16.4K	₩14,400	+406.9%	₩236M ($164K)
2023-11-01	BUY	무상신주취득	김종민 Kim Jong-min	Managing Director	4.3K	₩10,870	+571.6%	₩47M ($33K)
2023-11-01	BUY	무상신주취득	차상훈 Cha Sang-hoon	CEO	2.2M	-	-	-

Frequently asked questions

Who has been buying April Bio stock?: 6 distinct insiders have filed 1 disclosed insider purchases in April Bio (397030), most recently on 2026-04-13. 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 April Bio have?: April Bio has 1 buy-side and 19 sell-side disclosures on record, covering ₩8.5B ($5.9M) in total reported value, spanning 2023-11-01 to 2026-04-13.
Where does StockDrifts get April Bio 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 April Bio. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.