Who has been buying JS Link stock?

2 distinct insiders have filed 14 disclosed insider purchases in JS Link (127120), 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 JS Link have?

JS Link has 14 buy-side and 0 sell-side disclosures on record, covering ₩2.8B ($1.9M) in total reported value, spanning 2024-05-27 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.

JS Link 127120

Company

제이에스링크JS Link

Insiders

Buys

Total Value

₩2.8B ($1.9M)

Avg Return

+104.66%

Last Filing

2026-06-25

JS Link (127120) has 14 disclosed insider purchases and 0 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩2.8B ($1.9M) in reported transaction value. The earliest filing StockDrifts holds for JS Link is dated 2024-05-27; the most recent is 2026-06-25. Across these filings the average return since disclosure is +104.66%, 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
2026-08-27	SELL	Market Sell	김선진 Seonjin Kim	Outside Director	-16.5K	₩34,000	+5.9%	₩560M ($389K)
2026-08-26	SELL	Market Sell	김선진 Seonjin Kim	Outside Director	-2.6K	₩33,500	+4.5%	₩90M ($62K)
2026-08-25	SELL	Market Sell	김선진 Seonjin Kim	Outside Director	-1.4K	₩34,400	+7.0%	₩47M ($33K)
2026-08-24	SELL	Market Sell	김선진 Seonjin Kim	Outside Director	-469	₩34,400	+7.0%	₩16M ($11K)
2026-06-25	BUY	CB인수	주성씨앤에어 Joosung C&Air	-	280.8K	-	-	-
2026-03-31	BUY	신규선임	박규석 Park Gyu-seok	Outside Director	28.5K	₩37,950	+6.8%	₩1.1B ($751K)
2026-03-31	BUY	신규선임	김선진 Seonjin Kim	Outside Director	58.6K	₩37,950	+6.8%	₩2.2B ($1.5M)
2026-02-03	BUY	유상신주취득	주성씨앤에어 Joosung C&Air	-	183.1K	₩28,550	+30.6%	₩5.2B ($3.6M)
2026-01-06	BUY	Market Buy	주성씨앤에어 Joosung C&Air	-	12.1K	₩16,740	+122.8%	₩202M ($140K)
2026-01-02	BUY	Market Buy	주성씨앤에어 Joosung C&Air	-	11.8K	₩17,200	+116.9%	₩202M ($140K)
2025-12-26	BUY	Market Buy	주성씨앤에어 Joosung C&Air	-	1.1K	₩18,630	+100.2%	₩20M ($14K)
2025-12-02	BUY	Market Buy	주성씨앤에어 Joosung C&Air	-	15.7K	₩19,030	+96.0%	₩300M ($208K)
2025-12-01	BUY	Market Buy	주성씨앤에어 Joosung C&Air	-	32.0K	₩19,140	+94.9%	₩612M ($425K)
2025-11-27	BUY	Market Buy	주성씨앤에어 Joosung C&Air	-	30.8K	₩19,860	+87.8%	₩611M ($425K)
2025-11-25	BUY	Market Buy	주성씨앤에어 Joosung C&Air	-	13.1K	₩19,870	+87.7%	₩261M ($181K)
2025-11-24	BUY	Market Buy	주성씨앤에어 Joosung C&Air	-	12.0K	₩19,720	+89.2%	₩237M ($164K)
2025-11-21	BUY	Market Buy	주성씨앤에어 Joosung C&Air	-	3.0K	₩20,100	+85.6%	₩60M ($42K)
2025-11-19	BUY	Market Buy	주성씨앤에어 Joosung C&Air	-	3.0K	₩17,330	+115.2%	₩52M ($36K)
2025-11-18	BUY	Market Buy	박진수 Jinsu Park	moving	1.5K	₩17,210	+116.7%	₩26M ($18K)
2025-11-18	BUY	Market Buy	박진수 Jinsu Park	moving	5.0K	₩17,210	+116.7%	₩86M ($60K)
2025-11-17	BUY	Market Buy	주성씨앤에어 Joosung C&Air	-	4.0K	₩17,130	+117.8%	₩69M ($48K)
2025-11-17	BUY	Market Buy	주성씨앤에어 Joosung C&Air	-	3.5K	₩17,130	+117.8%	₩60M ($42K)
2025-10-29	BUY	제3자배정유상증자	박진수 Jinsu Park	moving	87.1K	₩19,270	+93.6%	₩1.7B ($1.2M)
2025-09-24	BUY	전환사채의권리행사	박진수 Jinsu Park	moving	347.6K	₩25,100	+48.6%	₩8.7B ($6.1M)
2025-08-22	BUY	전환사채의권리행사	주성씨앤에어 Joosung C&Air	-	6.0K	₩17,160	+117.4%	₩103M ($72K)
2025-07-31	BUY	유상신주취득	주성씨앤에어 Joosung C&Air	-	162.1K	₩13,860	+169.1%	₩2.2B ($1.6M)
2025-04-17	BUY	제3자배정유상증자	박진수 Jinsu Park	moving	155.6K	₩9,760	+282.2%	₩1.5B ($1.1M)
2025-04-17	BUY	제3자배정유상증자	박준범 Junbeom Park	moving	363.2K	₩9,760	+282.2%	₩3.5B ($2.5M)
2025-04-17	BUY	제3자배정유상증자	주성씨앤에어 Joosung C&Air	-	324.3K	₩9,760	+282.2%	₩3.2B ($2.2M)
2025-03-28	BUY	제3자배정유상증자	주성씨앤에어 Joosung C&Air	-	1.4M	₩6,920	+439.0%	₩9.9B ($6.9M)
2025-03-26	BUY	신규선임	박진수 Jinsu Park	moving	211.0K	₩7,700	+384.4%	₩1.6B ($1.1M)
2025-03-26	BUY	신규선임	박준범 Junbeom Park	moving	126.6K	₩7,700	+384.4%	₩975M ($677K)
2025-03-26	BUY	장외매수	주성씨앤에어 Joosung C&Air	-	3.6M	₩7,700	+384.4%	₩27.6B ($19.2M)
2025-03-26	SELL	장외매도	오르비텍 Orbitec	-	-3.2M	₩7,700	-384.4%	₩24.6B ($17.1M)
2025-01-15	BUY	CB인수	박진수 Jinsu Park	moving	164.0K	₩5,220	+614.6%	₩856M ($595K)
2025-01-07	SELL	장외매도	오르비텍 Orbitec	-	-617.3K	₩6,410	-481.9%	₩4.0B ($2.7M)
2024-12-06	BUY	CB인수	박진수 Jinsu Park	moving	53.1K	₩4,265	+774.6%	₩226M ($157K)
2024-08-26	SELL	행사가액조정	오르비텍 Orbitec	-	-121.5K	₩3,450	-981.2%	₩419M ($291K)
2024-08-23	BUY	유상신주취득	오르비텍 Orbitec	-	1.1M	₩3,465	+976.5%	₩3.7B ($2.5M)
2024-05-31	BUY	장외매수	오르비텍 Orbitec	-	1.6M	₩2,565	+1354.2%	₩4.1B ($2.8M)
2024-05-31	SELL	장외매도	이종은 Lee Jong-eun	CEO (each)	-752.1K	₩2,565	-1354.2%	₩1.9B ($1.3M)
2024-05-27	BUY	행사가액조정	오르비텍 Orbitec	-	121.5K	₩2,565	+1354.2%	₩312M ($216K)

Frequently asked questions

Who has been buying JS Link stock?: 2 distinct insiders have filed 14 disclosed insider purchases in JS Link (127120), 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 JS Link have?: JS Link has 14 buy-side and 0 sell-side disclosures on record, covering ₩2.8B ($1.9M) in total reported value, spanning 2024-05-27 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.