Who has been buying TYM stock?

3 distinct insiders have filed 6 disclosed insider purchases in TYM (002900), most recently on 2026-07-01. 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 TYM have?

TYM has 6 buy-side and 3 sell-side disclosures on record, covering ₩509M ($353K) in total reported value, spanning 2024-03-27 to 2026-07-01.

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.

TYM 002900

Company

TYM

Insiders

Buys

Total Value

₩509M ($353K)

Avg Return

-7.81%

Last Filing

2026-07-01

TYM (002900) has 6 disclosed insider purchases and 3 disclosed disposals on record, filed by 3 distinct insiders. Together those filings cover ₩509M ($353K) in reported transaction value. The earliest filing StockDrifts holds for TYM is dated 2024-03-27; the most recent is 2026-07-01. Across these filings the average return since disclosure is -7.81%, 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
2026-08-19	BUY	Market Buy	최웅경 Choi Woong-kyung	Vice President (CSO)	2.0K	₩6,810	+1.8%	₩15M ($10K)
2026-08-14	BUY	수증	김소원 Kim So-won	CEO	954.1K	₩7,380	+0.0%	₩7.0B ($4.9M)
2026-08-10	BUY	Market Buy	최웅경 Choi Woong-kyung	Vice President (CSO)	4.0K	₩6,880	+4.5%	₩25M ($17K)
2026-07-01	BUY	Market Buy	최웅경 Choi Woong-kyung	Vice President (CSO)	4.0K	₩6,220	+1.0%	₩25M ($17K)
2026-06-30	BUY	Market Buy	최웅경 Choi Woong-kyung	Vice President (CSO)	4.0K	₩6,020	+4.3%	₩24M ($17K)
2026-06-29	BUY	Market Buy	최웅경 Choi Woong-kyung	Vice President (CSO)	2.0K	₩6,130	+2.5%	₩12M ($9K)
2026-06-12	BUY	Market Buy	최웅경 Choi Woong-kyung	Vice President (CSO)	2.2K	₩6,480	-0.6%	₩14M ($10K)
2026-06-10	BUY	Market Buy	최웅경 Choi Woong-kyung	Vice President (CSO)	7.8K	₩6,000	+13.3%	₩47M ($33K)
2026-05-19	BUY	Market Buy	최웅경 Choi Woong-kyung	Vice President (CSO)	4.0K	₩8,150	+0.3%	₩33M ($23K)
2026-02-26	SELL	시간외매매	김식 Kim Sik	vice president	-800.0K	₩7,870	+0.0%	₩6.3B ($4.4M)
2026-02-26	SELL	시간외매매	김소원 Kim So-won	CSO	-400.0K	₩7,870	+0.0%	₩3.1B ($2.2M)
2026-01-12	SELL	Market Sell	김식 Kim Sik	vice president	-262	₩6,490	-21.3%	₩2M ($1K)
2026-01-09	SELL	Market Sell	김식 Kim Sik	vice president	-41.3K	₩6,350	-23.9%	₩262M ($182K)
2025-05-26	SELL	Market Sell	강근영 Kang Geun-young	Outside Director	-16.7K	₩5,400	-45.7%	₩90M ($62K)
2024-11-15	BUY	기타	김식 Kim Sik	vice president	450.0K	₩4,825	+63.1%	₩2.2B ($1.5M)
2024-11-15	BUY	기타	김소원 Kim So-won	CSO	450.0K	₩4,825	+63.1%	₩2.2B ($1.5M)
2024-03-29	BUY	신규선임	강근영 Kang Geun-young	Outside Director	16.7K	₩5,400	+45.7%	₩90M ($62K)
2024-03-27	SELL	장외매도	김식 Kim Sik	Managing Director	-450.0K	₩5,550	-41.8%	₩2.5B ($1.7M)
2024-03-27	SELL	장외매도	김소원 Kim So-won	CSO	-450.0K	₩5,550	-41.8%	₩2.5B ($1.7M)

Frequently asked questions

Who has been buying TYM stock?: 3 distinct insiders have filed 6 disclosed insider purchases in TYM (002900), most recently on 2026-07-01. 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 TYM have?: TYM has 6 buy-side and 3 sell-side disclosures on record, covering ₩509M ($353K) in total reported value, spanning 2024-03-27 to 2026-07-01.
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.