Who has been buying Cucumber Solution stock?

7 distinct insiders have filed 12 disclosed insider purchases in Cucumber Solution (138080), most recently on 2026-05-13. 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 Cucumber Solution have?

Cucumber Solution has 12 buy-side and 20 sell-side disclosures on record, covering ₩4.7B ($3.3M) in total reported value, spanning 2023-12-20 to 2026-05-13.

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.

Cucumber Solution 138080

Company

오이솔루션Cucumber Solution

Insiders

Buys

Total Value

₩4.7B ($3.3M)

Avg Return

+8.15%

Last Filing

2026-05-13

Cucumber Solution (138080) has 12 disclosed insider purchases and 20 disclosed disposals on record, filed by 7 distinct insiders. Together those filings cover ₩4.7B ($3.3M) in reported transaction value. The earliest filing StockDrifts holds for Cucumber Solution is dated 2023-12-20; the most recent is 2026-05-13. Across these filings the average return since disclosure is +8.15%, 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
2026-08-31	SELL	Market Sell	박찬 Bachchan	vice president	-10.0K	₩23,300	+8.6%	₩238M ($165K)
2026-05-13	SELL	Market Sell	박용관 Yonggwan Park	CEO	-50.0K	₩49,000	+14.4%	₩2.5B ($1.7M)
2026-05-11	SELL	Market Sell	홍순원 Hong Soon-won	Managing Director	-646	₩51,800	+19.0%	₩33M ($23K)
2026-05-08	SELL	Market Sell	유준상 Yoo Jun-sang	Managing Director	-1.0K	₩53,300	+21.4%	₩53M ($37K)
2026-04-30	BUY	Market Buy	김대진 Daejin Kim	Managing Director	376	₩38,700	+0.0%	₩15M ($10K)
2026-04-28	BUY	Market Buy	김대진 Daejin Kim	Managing Director	209	₩37,600	+2.9%	₩8M ($5K)
2026-04-02	BUY	콜옵션권리행사에따른주식취득	박환 Park Hwan	vice president	9.8K	₩43,000	+0.2%	₩423M ($294K)
2026-04-02	BUY	콜옵션권리행사에따른주식취득	박찬 Bachchan	vice president	14.7K	₩43,000	+0.2%	₩634M ($440K)
2026-03-11	BUY	콜옵션권리행사에따른주식취득	김인 Kim In	Managing Director	2.0K	₩30,650	+40.6%	₩61M ($43K)
2026-03-10	SELL	Market Sell	박환 Park Hwan	vice president	-1.0K	-	-	-
2026-03-05	SELL	Market Sell	박환 Park Hwan	vice president	-3.5K	-	-	-
2026-02-26	BUY	Market Buy	김대진 Daejin Kim	Managing Director	210	₩19,990	+123.9%	₩4M ($3K)
2026-02-02	SELL	Market Sell	박찬 Bachchan	vice president	-20.4K	₩16,330	-20.1%	₩333M ($231K)
2026-01-30	SELL	Market Sell	박찬 Bachchan	vice president	-12.0K	₩16,710	-17.4%	₩201M ($139K)
2026-01-29	SELL	Market Sell	박찬 Bachchan	vice president	-10.6K	₩16,930	-15.8%	₩179M ($125K)
2026-01-05	BUY	Market Buy	박환 Park Hwan	vice president	22	-	-	-
2025-12-30	SELL	Market Sell	박찬 Bachchan	vice president	-17.0K	₩13,090	-49.8%	₩223M ($155K)
2025-12-29	SELL	Market Sell	박찬 Bachchan	vice president	-10.0K	₩13,290	-47.5%	₩133M ($92K)
2025-12-26	SELL	Market Sell	박찬 Bachchan	vice president	-17.6K	₩13,430	-46.0%	₩237M ($164K)
2025-12-24	SELL	Market Sell	박환 Park Hwan	vice president	-182	-	-	-
2025-12-24	SELL	Market Sell	박찬 Bachchan	vice president	-19.4K	₩13,850	-41.6%	₩269M ($187K)
2025-12-17	SELL	Market Sell	박용관 Yonggwan Park	CEO	-10.0K	₩13,500	-45.3%	₩135M ($94K)
2025-10-02	SELL	Market Sell	유준상 Yoo Jun-sang	Managing Director	-2.5K	₩10,070	-94.7%	₩25M ($17K)
2025-08-18	BUY	Market Buy	박환 Park Hwan	vice president	1.1K	₩9,660	+103.0%	₩11M ($7K)
2025-06-16	BUY	Market Buy	박환 Park Hwan	vice president	30	₩10,010	+95.9%	₩300K ($209)
2025-05-27	SELL	Market Sell	박용관 Yonggwan Park	CEO	-14.6K	₩9,460	-107.3%	₩138M ($96K)
2025-05-23	BUY	Market Buy	박환 Park Hwan	vice president	628	₩9,200	+113.2%	₩6M ($4K)
2025-05-22	SELL	Market Sell	박용관 Yonggwan Park	CEO	-13.6K	₩9,620	-103.8%	₩130M ($91K)
2025-05-21	SELL	Market Sell	박용관 Yonggwan Park	CEO	-7.3K	₩9,850	-99.1%	₩72M ($50K)
2025-05-08	SELL	Market Sell	김대진 Daejin Kim	Managing Director	-100	₩9,510	-106.2%	₩951K ($660)
2025-05-07	BUY	Market Buy	김대진 Daejin Kim	Managing Director	548	₩9,400	+108.6%	₩5M ($4K)
2025-04-09	BUY	Market Buy	김대진 Daejin Kim	Managing Director	313	₩7,890	+148.5%	₩2M ($2K)
2025-04-04	BUY	Market Buy	박환 Park Hwan	vice president	1.0K	₩9,000	+117.9%	₩9M ($6K)
2025-04-04	BUY	기타	박용관 Yonggwan Park	CEO	96.8K	₩9,000	+117.9%	₩871M ($605K)
2025-04-01	BUY	Market Buy	김대진 Daejin Kim	Managing Director	779	₩9,180	+113.6%	₩7M ($5K)
2024-08-26	SELL	대여	박환 Park Hwan	vice president	-46.3K	₩11,200	-75.1%	₩518M ($360K)
2024-08-07	BUY	Market Buy	박환 Park Hwan	vice president	800	₩10,220	+91.9%	₩8M ($6K)
2024-08-06	SELL	대여	박용관 Yonggwan Park	CEO	-96.8K	₩10,240	-91.5%	₩992M ($689K)
2023-12-20	SELL	Market Sell	이상호 (CEO)	Managing Director	-1.0K	₩12,970	-51.2%	₩13M ($9K)

Frequently asked questions

Who has been buying Cucumber Solution stock?: 7 distinct insiders have filed 12 disclosed insider purchases in Cucumber Solution (138080), most recently on 2026-05-13. 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 Cucumber Solution have?: Cucumber Solution has 12 buy-side and 20 sell-side disclosures on record, covering ₩4.7B ($3.3M) in total reported value, spanning 2023-12-20 to 2026-05-13.
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.