Who has been buying GNC Energy stock?

4 distinct insiders have filed 7 disclosed insider purchases in GNC Energy (119850), most recently on 2026-06-25. 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 GNC Energy have?

GNC Energy has 7 buy-side and 13 sell-side disclosures on record, covering ₩2.4B ($1.7M) in total reported value, spanning 2024-02-21 to 2026-06-25.

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.

GNC Energy 119850

Company

지엔씨에너지GNC Energy

Insiders

Buys

Total Value

₩2.4B ($1.7M)

Avg Return

-164.11%

Last Filing

2026-06-25

GNC Energy (119850) has 7 disclosed insider purchases and 13 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩2.4B ($1.7M) in reported transaction value. The earliest filing StockDrifts holds for GNC Energy is dated 2024-02-21; the most recent is 2026-06-25.

Price & insider activity (12 months)

Recent insider trades

Date	Type	Source	Insider	Position	Shares	Price at filing	Return	Value
2026-06-25	SELL	증여	안병철 Ahn Byeong-cheol	CEO	-1.0K	₩19,700	+3.0%	₩20M ($14K)
2026-06-25	BUY	Market Buy	안병철 Ahn Byeong-cheol	CEO	1.0K	₩19,700	-3.0%	₩20M ($14K)
2026-06-24	BUY	Market Buy	안병철 Ahn Byeong-cheol	CEO	2.0K	₩19,920	-4.1%	₩40M ($28K)
2026-06-23	BUY	Market Buy	안병철 Ahn Byeong-cheol	CEO	2.0K	₩19,700	-3.0%	₩39M ($27K)
2026-05-21	BUY	Market Buy	안병철 Ahn Byeong-cheol	CEO	1.0K	₩27,000	+3.0%	₩27M ($19K)
2026-05-20	BUY	Market Buy	안병철 Ahn Byeong-cheol	CEO	1.0K	₩25,000	+11.2%	₩25M ($17K)
2026-05-19	BUY	Market Buy	안병철 Ahn Byeong-cheol	CEO	3.0K	₩26,850	+3.5%	₩81M ($56K)
2026-02-09	BUY	자사주상여금	안병철 Ahn Byeong-cheol	CEO	546	₩38,600	+3.1%	₩21M ($15K)
2026-02-09	BUY	자사주상여금	정운석 Unseok Jeong	Managing Director	211	₩38,600	+3.1%	₩8M ($6K)
2026-02-09	BUY	자사주상여금	김건 Kim Gun	moving	200	₩38,600	+3.1%	₩8M ($5K)
2026-02-09	BUY	자사주상여금	이영주 Youngju Lee	thanks	149	₩38,600	+3.1%	₩6M ($4K)
2026-01-14	BUY	Market Buy	정운석 Unseok Jeong	Managing Director	313	₩34,950	+13.9%	₩11M ($8K)
2025-10-14	SELL	Market Sell	이영주 Youngju Lee	thanks	-1.5K	₩33,900	-17.4%	₩52M ($36K)
2025-05-20	SELL	Market Sell	안병철 Ahn Byeong-cheol	CEO	-5.0K	₩29,950	-32.9%	₩150M ($104K)
2025-05-19	SELL	Market Sell	안병철 Ahn Byeong-cheol	CEO	-9.0K	₩28,650	-38.9%	₩258M ($179K)
2025-05-16	SELL	Market Sell	안병철 Ahn Byeong-cheol	CEO	-18.5K	₩28,700	-38.7%	₩532M ($369K)
2025-05-15	SELL	Market Sell	안병철 Ahn Byeong-cheol	CEO	-15.1K	₩27,350	-45.5%	₩412M ($286K)
2025-04-03	SELL	증여	안병철 Ahn Byeong-cheol	CEO	-1.0K	₩15,000	-165.3%	₩15M ($10K)
2025-04-03	SELL	증여	안병철 Ahn Byeong-cheol	CEO	-5.0K	₩15,000	-165.3%	₩75M ($52K)
2025-02-13	BUY	자사주상여금	정운석 Unseok Jeong	Managing Director	687	₩13,180	+202.0%	₩9M ($6K)
2025-02-13	SELL	Market Sell	정운석 Unseok Jeong	Managing Director	-3.2K	₩13,180	-202.0%	₩42M ($29K)
2025-02-13	BUY	자사주상여금	안병철 Ahn Byeong-cheol	CEO	755	₩13,180	+202.0%	₩10M ($7K)
2025-02-13	BUY	자사주상여금	이영주 Youngju Lee	thanks	434	₩13,180	+202.0%	₩6M ($4K)
2025-02-13	BUY	자사주상여금	김건 Kim Gun	moving	697	₩13,180	+202.0%	₩9M ($6K)
2024-11-12	SELL	Market Sell	정운석 Unseok Jeong	Managing Director	-2.0K	₩6,730	-491.4%	₩13M ($9K)
2024-09-02	SELL	Market Sell	정운석 Unseok Jeong	Managing Director	-2.0K	₩6,070	-555.7%	₩12M ($8K)
2024-08-12	SELL	증여	안병철 Ahn Byeong-cheol	CEO	-5.0K	₩6,240	-537.8%	₩31M ($22K)
2024-05-20	SELL	Market Sell	안병철 Ahn Byeong-cheol	CEO	-20.0K	₩8,860	-349.2%	₩177M ($123K)
2024-05-16	SELL	Market Sell	안병철 Ahn Byeong-cheol	CEO	-20.0K	₩9,950	-300.0%	₩199M ($138K)
2024-04-30	SELL	Market Sell	정운석 Unseok Jeong	Managing Director	-2.6K	₩7,830	-408.3%	₩20M ($14K)
2024-04-19	SELL	Market Sell	안병철 Ahn Byeong-cheol	CEO	-40.0K	₩7,780	-411.6%	₩311M ($216K)
2024-04-05	SELL	Market Sell	장규식 Jang Gyu-sik	Managing Director	-1.8K	₩7,770	-412.2%	₩14M ($9K)
2024-04-04	SELL	증여	안병철 Ahn Byeong-cheol	CEO	-1.0K	₩7,480	-432.1%	₩7M ($5K)
2024-04-04	BUY	수증	정운석 Unseok Jeong	Managing Director	1.0K	₩7,480	+432.1%	₩7M ($5K)
2024-02-21	BUY	자사주상여금	장규식 Jang Gyu-sik	Managing Director	1.8K	₩4,775	+733.5%	₩8M ($6K)
2024-02-21	BUY	자사주상여금	안병철 Ahn Byeong-cheol	CEO	1.8K	₩4,775	+733.5%	₩9M ($6K)
2024-02-21	BUY	자사주상여금	이영주 Youngju Lee	thanks	1.1K	₩4,775	+733.5%	₩5M ($4K)
2024-02-21	BUY	자사주상여금	정운석 Unseok Jeong	Managing Director	1.8K	₩4,775	+733.5%	₩9M ($6K)

Frequently asked questions

Who has been buying GNC Energy stock?: 4 distinct insiders have filed 7 disclosed insider purchases in GNC Energy (119850), most recently on 2026-06-25. 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 GNC Energy have?: GNC Energy has 7 buy-side and 13 sell-side disclosures on record, covering ₩2.4B ($1.7M) in total reported value, spanning 2024-02-21 to 2026-06-25.
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.