Who has been buying TMC stock?

0 distinct insiders have filed 0 disclosed insider purchases in TMC (217590), most recently on 2026-06-19. 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 TMC have?

TMC has 0 buy-side and 0 sell-side disclosures on record, spanning 2025-12-15 to 2026-06-19.

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.

TMC 217590

Company

티엠씨TMC

Insiders

Buys

Total Value

—

Avg Return

—

Last Filing

2026-06-19

TMC (217590) has 0 disclosed insider purchases and 0 disclosed disposals on record, filed by 0 distinct insiders. The earliest filing StockDrifts holds for TMC is dated 2025-12-15; the most recent is 2026-06-19.

Price & insider activity (12 months)

Recent insider trades

Date	Type	Source	Insider	Position	Shares	Price at filing	Return	Value
2026-06-19	SELL	시간외매매	펙투스-제이비우리 신기술사업투자조합 제1호 Pectus-JB Woori New Technology Business Investment Association No. 1	-	-1.0M	-	-	-
2026-04-24	SELL	기타	케이피에프 KPF	-	-417.0K	₩29,600	+0.2%	₩12.3B ($8.6M)
2025-12-15	BUY	PROGRAM	지영완 Ji Young-wan	CEO	3.4K	₩16,770	-3.0%	₩57M ($40K)
2025-12-15	BUY	PROGRAM	정귀수 Jeong Gwi-soo	Managing Director	3.4K	₩16,770	-3.0%	₩57M ($40K)
2025-12-15	BUY	PROGRAM	안경찬 An Kyeong-chan	moving	3.4K	₩16,770	-3.0%	₩57M ($40K)
2025-12-15	BUY	PROGRAM	전기환 electric currency	moving	3.4K	₩16,770	-3.0%	₩57M ($40K)
2025-12-15	BUY	PROGRAM	서인규 Seo In-gyu	moving	2.0K	₩16,770	-3.0%	₩34M ($23K)
2025-12-15	BUY	PROGRAM	남호일 Nam Ho-il	moving	3.0K	₩16,770	-3.0%	₩50M ($35K)
2025-12-15	BUY	신규상장	펙투스-제이비우리 신기술사업투자조합 제1호 Pectus-JB Woori New Technology Business Investment Association No. 1	-	3.4M	₩16,770	-3.0%	₩56.4B ($39.1M)
2025-12-15	BUY	PROGRAM	케이피에프 KPF	-	11.7M	₩16,770	-3.0%	₩197.0B ($136.8M)

Frequently asked questions

Who has been buying TMC stock?: 0 distinct insiders have filed 0 disclosed insider purchases in TMC (217590), most recently on 2026-06-19. 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 TMC have?: TMC has 0 buy-side and 0 sell-side disclosures on record, spanning 2025-12-15 to 2026-06-19.
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.