Who has been buying Synopex stock?

1 distinct insiders have filed 3 disclosed insider purchases in Synopex (025320), most recently on 2026-01-01. 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 Synopex have?

Synopex has 3 buy-side and 0 sell-side disclosures on record, covering ₩353M ($245K) in total reported value, spanning 2022-12-19 to 2026-01-01.

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.

Synopex 025320

Company

시노펙스Synopex

Insiders

Buys

Total Value

₩353M ($245K)

Avg Return

+212.41%

Last Filing

2026-01-01

Synopex (025320) has 3 disclosed insider purchases and 0 disclosed disposals on record, filed by 1 distinct insiders. Together those filings cover ₩353M ($245K) in reported transaction value. The earliest filing StockDrifts holds for Synopex is dated 2022-12-19; the most recent is 2026-01-01. Across these filings the average return since disclosure is +212.41%, 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
2026-01-01	BUY	PROGRAM	정민재 Minjae Jeong	vice president	354	₩6,020	+16.1%	₩2M ($1K)
2026-01-01	BUY	PROGRAM	김경미 Kim Kyung-mi	Managing Director	942	₩6,020	+16.1%	₩6M ($4K)
2026-01-01	BUY	PROGRAM	박기원 Park Ki-won	Managing Director	259	₩6,020	+16.1%	₩2M ($1K)
2026-01-01	BUY	PROGRAM	황지호 Jiho Hwang	vice president	12.9K	₩6,020	+16.1%	₩77M ($54K)
2026-01-01	BUY	PROGRAM	이진태 Jintae Lee	Managing Director	354	₩6,020	+16.1%	₩2M ($1K)
2026-01-01	BUY	PROGRAM	이상재 Sangjae Lee	Managing Director	354	₩6,020	+16.1%	₩2M ($1K)
2026-01-01	BUY	PROGRAM	노시갑 Noh Si-gap	vice president	2.4K	₩6,020	+16.1%	₩14M ($10K)
2026-01-01	BUY	PROGRAM	이하나 Lee Hana	moving	255	₩6,020	+16.1%	₩2M ($1K)
2026-01-01	BUY	PROGRAM	최상언 Choi Sang-eon	vice president	354	₩6,020	+16.1%	₩2M ($1K)
2026-01-01	BUY	PROGRAM	이권기 Lee Kwon-gi	Managing Director	254	₩6,020	+16.1%	₩2M ($1K)
2026-01-01	BUY	PROGRAM	임자영 Lim Ja-young	Managing Director	254	₩6,020	+16.1%	₩2M ($1K)
2026-01-01	BUY	PROGRAM	김동현 Donghyun Kim	moving	149	₩6,020	+16.1%	₩897K ($623)
2026-01-01	BUY	PROGRAM	임재원 Jaewon Lim	Managing Director	104	₩6,020	+16.1%	₩626K ($435)
2026-01-01	BUY	PROGRAM	손경익 Son Kyeong-ik	CEO	604	₩6,020	+16.1%	₩4M ($3K)
2026-01-01	BUY	PROGRAM	석유민 oil people	Managing Director	254	₩6,020	+16.1%	₩2M ($1K)
2026-01-01	BUY	PROGRAM	시노다이나믹스 Sinodynamics	-	434.2K	₩6,020	+16.1%	₩2.6B ($1.8M)
2026-01-01	BUY	PROGRAM	이진희 Jinhee Lee	Internal director	30.1K	₩6,020	+16.1%	₩181M ($126K)
2026-01-01	BUY	PROGRAM	지화용 Jihwayong	Managing Director	254	₩6,020	+16.1%	₩2M ($1K)
2025-02-03	BUY	PROGRAM	이하나 Lee Hana	moving	3.0K	₩5,247	+33.2%	₩16M ($11K)
2025-02-03	BUY	PROGRAM	손경익 Son Kyeong-ik	CEO	10.0K	₩5,247	+33.2%	₩52M ($36K)
2025-02-03	BUY	PROGRAM	박기원 Park Ki-won	Managing Director	3.0K	₩5,247	+33.2%	₩16M ($11K)
2025-02-03	BUY	PROGRAM	지화용 Jihwayong	Managing Director	3.0K	₩5,247	+33.2%	₩16M ($11K)
2025-02-03	BUY	PROGRAM	민철홍 Min Cheolhong	moving	3.0K	₩5,247	+33.2%	₩16M ($11K)
2025-02-03	BUY	PROGRAM	석유민 oil people	Managing Director	3.0K	₩5,247	+33.2%	₩16M ($11K)
2025-02-03	BUY	PROGRAM	최상언 Choi Sang-eon	vice president	5.0K	₩5,247	+33.2%	₩26M ($18K)
2025-02-03	BUY	PROGRAM	이권기 Lee Kwon-gi	moving	3.0K	₩5,247	+33.2%	₩16M ($11K)
2025-02-03	BUY	PROGRAM	임자영 Lim Ja-young	Managing Director	3.0K	₩5,247	+33.2%	₩16M ($11K)
2025-02-03	BUY	PROGRAM	이진태 Jintae Lee	Managing Director	5.0K	₩5,247	+33.2%	₩26M ($18K)
2025-02-03	BUY	PROGRAM	김경미 Kim Kyung-mi	Managing Director	3.0K	₩5,247	+33.2%	₩16M ($11K)
2025-02-03	BUY	PROGRAM	황지호 Jiho Hwang	vice president	10.0K	₩5,247	+33.2%	₩52M ($36K)
2025-02-03	BUY	PROGRAM	김동현 Donghyun Kim	moving	3.0K	₩5,247	+33.2%	₩16M ($11K)
2025-02-03	BUY	PROGRAM	정민재 Minjae Jeong	vice president	5.0K	₩5,247	+33.2%	₩26M ($18K)
2025-02-03	BUY	PROGRAM	이상재 Sangjae Lee	Managing Director	5.0K	₩5,247	+33.2%	₩26M ($18K)
2025-02-03	BUY	PROGRAM	이진희 Jinhee Lee	Internal director	10.0K	₩5,247	+33.2%	₩52M ($36K)
2024-12-30	BUY	PROGRAM	임재원 Jaewon Lim	Managing Director	100	₩5,647	+23.8%	₩565K ($392)
2024-12-30	BUY	PROGRAM	손경익 Son Kyeong-ik	CEO	100	₩5,647	+23.8%	₩565K ($392)
2024-12-30	BUY	PROGRAM	임자영 Lim Ja-young	Managing Director	100	₩5,647	+23.8%	₩565K ($392)
2024-12-30	BUY	PROGRAM	이하나 Lee Hana	moving	100	₩5,647	+23.8%	₩565K ($392)
2024-12-30	BUY	PROGRAM	박인환 Inhwan Park	Managing Director	100	₩5,647	+23.8%	₩565K ($392)
2024-12-30	BUY	PROGRAM	박기원 Park Ki-won	Managing Director	104	₩5,647	+23.8%	₩587K ($408)
2024-12-30	BUY	PROGRAM	지화용 Jihwayong	Managing Director	100	₩5,647	+23.8%	₩565K ($392)
2024-12-30	BUY	PROGRAM	석유민 oil people	Managing Director	100	₩5,647	+23.8%	₩565K ($392)
2024-12-30	BUY	PROGRAM	이권기 Lee Kwon-gi	moving	100	₩5,647	+23.8%	₩565K ($392)
2024-12-30	BUY	PROGRAM	이진태 Jintae Lee	Managing Director	100	₩5,647	+23.8%	₩565K ($392)
2024-12-30	BUY	PROGRAM	김경미 Kim Kyung-mi	Managing Director	755	₩5,647	+23.8%	₩4M ($3K)
2024-12-30	BUY	PROGRAM	정민재 Minjae Jeong	vice president	100	₩5,647	+23.8%	₩565K ($392)
2024-12-30	BUY	PROGRAM	이상재 Sangjae Lee	Managing Director	100	₩5,647	+23.8%	₩565K ($392)
2024-12-30	BUY	PROGRAM	이진희 Jinhee Lee	Internal director	28.2K	₩5,647	+23.8%	₩159M ($111K)
2024-12-30	BUY	PROGRAM	시노다이나믹스 Sinodynamics	-	413.5K	₩5,647	+23.8%	₩2.3B ($1.6M)
2024-12-30	BUY	PROGRAM	최상언 Choi Sang-eon	vice president	100	₩5,647	+23.8%	₩565K ($392)

Showing the 50 most recent of 61 filings.

Frequently asked questions

Who has been buying Synopex stock?: 1 distinct insiders have filed 3 disclosed insider purchases in Synopex (025320), most recently on 2026-01-01. 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 Synopex have?: Synopex has 3 buy-side and 0 sell-side disclosures on record, covering ₩353M ($245K) in total reported value, spanning 2022-12-19 to 2026-01-01.
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.