Who has been buying Abion stock?

6 distinct insiders have filed 31 disclosed insider purchases in Abion (203400), 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 Abion have?

Abion has 31 buy-side and 3 sell-side disclosures on record, covering ₩9.1B ($6.3M) in total reported value, spanning 2023-12-27 to 2026-07-06.

Where does StockDrifts get Abion 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.

Abion 203400

Company

에이비온Abion

Insiders

Buys

Total Value

₩9.1B ($6.3M)

Avg Return

+0.47%

Last Filing

2026-07-06

Abion (203400) has 31 disclosed insider purchases and 3 disclosed disposals on record, filed by 6 distinct insiders. Together those filings cover ₩9.1B ($6.3M) in reported transaction value. The earliest filing StockDrifts holds for Abion is dated 2023-12-27; 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 +0.47%, 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
2026-08-11	BUY	Market Buy	장기룡 Jang Ki-ryong	vice president	35.6K	₩980	-12.7%	₩36M ($25K)
2026-08-04	BUY	Market Buy	우성윤 Seongyoon Woo	vice president	18.6K	₩719	-4.3%	₩14M ($10K)
2026-08-03	BUY	Market Buy	우성윤 Seongyoon Woo	vice president	84.0K	₩688	+0.0%	₩60M ($42K)
2026-07-29	BUY	Market Buy	신영기 Youngki Shin	CEO	105.8K	₩636	+8.2%	₩77M ($53K)
2026-07-28	BUY	Market Buy	신영기 Youngki Shin	CEO	248.0K	₩771	-14.0%	₩196M ($136K)
2026-07-27	BUY	Market Buy	신영기 Youngki Shin	CEO	271.3K	₩824	-19.5%	₩219M ($152K)
2026-07-24	BUY	Market Buy	신영기 Youngki Shin	CEO	200.8K	₩805	-17.6%	₩158M ($110K)
2026-07-06	BUY	Market Buy	우성윤 Seongyoon Woo	vice president	32.6K	₩795	-15.7%	₩26M ($18K)
2026-06-11	SELL	기타	신영기 Youngki Shin	CEO	-363.0K	₩1,233	-2.2%	₩448M ($311K)
2026-06-09	SELL	Market Sell	신영기 Youngki Shin	CEO	-2.6M	₩1,340	+6.0%	₩3.6B ($2.5M)
2026-06-08	SELL	Market Sell	신영기 Youngki Shin	CEO	-2.3M	₩1,235	-2.0%	₩2.8B ($1.9M)
2026-06-08	BUY	기타	신영기 Youngki Shin	CEO	363.0K	₩1,235	+2.0%	₩448M ($311K)
2026-06-02	BUY	Market Buy	신영기 Youngki Shin	CEO	95.9K	₩1,824	-30.9%	₩175M ($122K)
2026-06-01	BUY	Market Buy	신영기 Youngki Shin	CEO	13.1K	₩1,866	-32.5%	₩24M ($17K)
2026-05-21	BUY	Market Buy	신영기 Youngki Shin	CEO	58.3K	₩1,908	+4.8%	₩111M ($77K)
2026-05-20	SELL	Market Sell	신영기 Youngki Shin	CEO	-1.1M	₩1,923	-4.0%	₩2.1B ($1.5M)
2026-05-20	BUY	Market Buy	신영기 Youngki Shin	CEO	4.9K	₩1,923	+4.0%	₩9M ($7K)
2026-05-19	BUY	Market Buy	신영기 Youngki Shin	CEO	4.0K	₩2,025	-1.2%	₩8M ($6K)
2026-05-18	BUY	Market Buy	신영기 Youngki Shin	CEO	10.8K	₩2,010	-0.5%	₩22M ($15K)
2026-04-27	BUY	Market Buy	장기룡 Jang Ki-ryong	vice president	30.0K	₩2,705	-5.2%	₩81M ($56K)
2026-04-27	BUY	Market Buy	우성윤 Seongyoon Woo	vice president	37.9K	₩2,705	-5.2%	₩102M ($71K)
2025-12-02	BUY	무상신주취득	김윤범 Yunbeom Kim	Managing Director	3.5K	₩4,100	-12.6%	₩14M ($10K)
2025-12-02	BUY	무상신주취득	임양미 Yangmi Lim	Managing Director	92	₩4,100	-12.6%	₩377K ($262)
2025-12-02	BUY	PROGRAM	우성윤 Seongyoon Woo	vice president	13.4K	₩4,100	-12.6%	₩55M ($38K)
2025-12-02	BUY	PROGRAM	이영휘 Younghwi Lee	moving	4.0K	₩4,100	-12.6%	₩16M ($11K)
2025-12-02	BUY	PROGRAM	텔콘RF제약 Telcon RF Pharmaceutical	-	7.3M	₩4,100	-12.6%	₩29.9B ($20.7M)
2025-12-02	BUY	PROGRAM	텔콘RF제약 Telcon RF Pharmaceutical	-	291.9K	₩4,100	-12.6%	₩1.2B ($831K)
2025-12-02	BUY	PROGRAM	김종란 Kim Jong-ran	vice president	7.4K	₩4,100	-12.6%	₩30M ($21K)
2025-12-02	BUY	PROGRAM	신영기 Youngki Shin	CEO	3.2M	₩4,100	-12.6%	₩13.0B ($9.0M)
2025-12-02	SELL	기타	텔콘RF제약 Telcon RF Pharmaceutical	-	-194.6K	₩4,100	+12.6%	₩798M ($554K)
2025-12-02	BUY	PROGRAM	김정현 Kim Jeong-hyeon	Managing Director	13	₩4,100	-12.6%	₩53K ($37)
2025-12-02	BUY	무상신주취득	장선미 Seonmi Jang	Managing Director	27	₩4,100	-12.6%	₩111K ($77)
2025-12-01	BUY	PROGRAM	김정현 Kim Jeong-hyeon	Managing Director	17	₩3,155	+13.6%	₩54K ($37)
2025-12-01	SELL	기타	우성윤 Seongyoon Woo	vice president	-7.4K	₩3,155	-13.6%	₩23M ($16K)
2025-12-01	SELL	기타	이영휘 Younghwi Lee	moving	-3.5K	₩3,155	-13.6%	₩11M ($8K)
2025-12-01	SELL	기타	신영기 Youngki Shin	CEO	-1.6M	₩3,155	-13.6%	₩5.1B ($3.6M)
2025-12-01	SELL	기타	김종란 Kim Jong-ran	vice president	-3.5K	₩3,155	-13.6%	₩11M ($8K)
2025-12-01	SELL	기타	김윤범 Yunbeom Kim	Managing Director	-1.7K	₩3,155	-13.6%	₩5M ($4K)
2025-12-01	BUY	PROGRAM	우성윤 Seongyoon Woo	vice president	6.1K	₩3,155	+13.6%	₩19M ($13K)
2025-12-01	BUY	PROGRAM	신영기 Youngki Shin	CEO	1.6M	₩3,155	+13.6%	₩5.1B ($3.6M)
2025-12-01	BUY	PROGRAM	김종란 Kim Jong-ran	vice president	4.2K	₩3,155	+13.6%	₩13M ($9K)
2025-12-01	BUY	유상신주취득	장선미 Seonmi Jang	Managing Director	34	₩3,155	+13.6%	₩107K ($74)
2025-12-01	BUY	유상신주취득	김윤범 Yunbeom Kim	Managing Director	2.0K	₩3,155	+13.6%	₩6M ($4K)
2025-12-01	BUY	유상신주취득	임양미 Yangmi Lim	Managing Director	115	₩3,155	+13.6%	₩363K ($252)
2025-11-29	BUY	PROGRAM	텔콘RF제약 Telcon RF Pharmaceutical	-	330.0K	₩3,155	+13.6%	₩1.0B ($723K)
2025-11-29	BUY	PROGRAM	텔콘RF제약 Telcon RF Pharmaceutical	-	37.4K	₩3,155	+13.6%	₩118M ($82K)
2025-11-28	SELL	기타	텔콘RF제약 Telcon RF Pharmaceutical	-	-330.0K	₩2,725	-31.6%	₩899M ($624K)
2025-11-07	SELL	기타	텔콘RF제약 Telcon RF Pharmaceutical	-	-5.9M	₩2,233	-60.5%	₩13.3B ($9.2M)
2025-10-20	BUY	기타	텔콘RF제약 Telcon RF Pharmaceutical	-	6.3M	₩2,558	+40.1%	₩16.1B ($11.1M)
2025-10-20	BUY	기타	김윤범 Yunbeom Kim	Managing Director	1.7K	₩2,558	+40.1%	₩4M ($3K)

Showing the 50 most recent of 94 filings.

Frequently asked questions

Who has been buying Abion stock?: 6 distinct insiders have filed 31 disclosed insider purchases in Abion (203400), 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 Abion have?: Abion has 31 buy-side and 3 sell-side disclosures on record, covering ₩9.1B ($6.3M) in total reported value, spanning 2023-12-27 to 2026-07-06.
Where does StockDrifts get Abion 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 Abion. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.