Who has been buying Gaon Chips stock?

3 distinct insiders have filed 0 disclosed insider purchases in Gaon Chips (399720), most recently on 2026-06-30. 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 Gaon Chips have?

Gaon Chips has 0 buy-side and 5 sell-side disclosures on record, covering ₩946M ($657K) in total reported value, spanning 2024-04-30 to 2026-06-30.

Where does StockDrifts get Gaon Chips 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.

Gaon Chips 399720

Company

가온칩스Gaon Chips

Insiders

Buys

Total Value

₩946M ($657K)

Avg Return

+1.55%

Last Filing

2026-06-30

Gaon Chips (399720) has 0 disclosed insider purchases and 5 disclosed disposals on record, filed by 3 distinct insiders. Together those filings cover ₩946M ($657K) in reported transaction value. The earliest filing StockDrifts holds for Gaon Chips is dated 2024-04-30; the most recent is 2026-06-30. 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 +1.55%, 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
2026-07-31	SELL	임원퇴임	박대남 Daenam Park	Managing Director	-246.5K	₩48,450	+10.0%	₩11.9B ($8.3M)
2026-06-30	BUY	주식매수선택권	김순곤 Soon-gon Kim	vice president	10.0K	₩39,950	+39.2%	₩400M ($277K)
2026-04-29	SELL	Market Sell	윤형석 Hyungseok Yoon	Managing Director	-6.0K	₩71,700	+0.0%	₩430M ($299K)
2026-04-29	SELL	Market Sell	박영근 Younggeun Park	Managing Director	-3.0K	₩71,700	+0.0%	₩215M ($149K)
2026-04-28	SELL	Market Sell	윤형석 Hyungseok Yoon	Managing Director	-4.0K	₩75,200	+4.7%	₩301M ($209K)
2026-02-26	SELL	Market Sell	박대남 Daenam Park	Managing Director	-2.6K	-	-	-
2026-02-24	SELL	Market Sell	박대남 Daenam Park	Managing Director	-4.4K	-	-	-
2025-09-25	SELL	증여	윤형석 Hyungseok Yoon	Managing Director	-2.7K	₩49,450	-37.7%	₩135M ($94K)
2025-09-25	SELL	증여	윤형석 Hyungseok Yoon	Managing Director	-3.0K	₩49,450	-37.7%	₩148M ($103K)
2025-09-25	SELL	증여	윤형석 Hyungseok Yoon	Managing Director	-2.7K	₩49,450	-37.7%	₩135M ($94K)
2025-06-18	BUY	주식매수청구권 행사	김효철 Kim Hyo-cheol	Managing Director	2.0K	₩45,000	+51.3%	₩90M ($63K)
2025-03-26	BUY	신규선임	이양원 Yangwon Lee	thanks	718	₩46,600	+46.1%	₩33M ($23K)
2025-02-10	SELL	증여	정규동 Gyu-dong	CEO	-10.0K	₩54,000	-26.1%	₩540M ($375K)
2025-02-10	SELL	증여	정규동 Gyu-dong	CEO	-10.0K	₩54,000	-26.1%	₩540M ($375K)
2025-02-10	SELL	증여	정규동 Gyu-dong	CEO	-10.0K	₩54,000	-26.1%	₩540M ($375K)
2025-01-17	SELL	증여	이상배 Lee Sang-bae	Internal director	-3.0K	₩47,100	-44.6%	₩140M ($97K)
2025-01-17	SELL	증여	이상배 Lee Sang-bae	Internal director	-3.6K	₩47,100	-44.6%	₩170M ($118K)
2025-01-17	SELL	증여	이상배 Lee Sang-bae	Internal director	-3.0K	₩47,100	-44.6%	₩140M ($97K)
2025-01-17	SELL	증여	이상배 Lee Sang-bae	Internal director	-14.9K	₩47,100	-44.6%	₩700M ($486K)
2024-12-13	SELL	임원퇴임	서정욱 Seo Jeong-wook	moving	-3.0K	₩33,600	-102.7%	₩101M ($70K)
2024-11-22	SELL	증여	박대남 Daenam Park	Managing Director	-1.5K	₩31,950	-113.2%	₩48M ($33K)
2024-11-22	SELL	증여	박대남 Daenam Park	Managing Director	-600	₩31,950	-113.2%	₩19M ($13K)
2024-11-20	BUY	주식매수청구권 행사	박영근 Younggeun Park	moving	4.0K	₩33,550	+103.0%	₩134M ($93K)
2024-11-20	BUY	주식매수청구권 행사	서정욱 Seo Jeong-wook	moving	3.0K	₩33,550	+103.0%	₩101M ($70K)
2024-11-20	BUY	주식매수청구권 행사	위지호 Jiho Wi	Managing Director	4.0K	₩33,550	+103.0%	₩134M ($93K)
2024-04-30	SELL	임원퇴임	심진섭 Shim Jin-seop	Internal director	-877.7K	₩91,100	+25.3%	₩80.0B ($55.5M)

Frequently asked questions

Who has been buying Gaon Chips stock?: 3 distinct insiders have filed 0 disclosed insider purchases in Gaon Chips (399720), most recently on 2026-06-30. 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 Gaon Chips have?: Gaon Chips has 0 buy-side and 5 sell-side disclosures on record, covering ₩946M ($657K) in total reported value, spanning 2024-04-30 to 2026-06-30.
Where does StockDrifts get Gaon Chips 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 Gaon Chips. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.