Who has been buying Samsung Electro-Mechanics stock?

10 distinct insiders have filed 538 disclosed insider purchases in Samsung Electro-Mechanics (009150), most recently on 2026-06-04. 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 Samsung Electro-Mechanics have?

Samsung Electro-Mechanics has 538 buy-side and 485 sell-side disclosures on record, covering ₩3.40T ($2.4B) in total reported value, spanning 2024-01-02 to 2026-06-04.

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.

Samsung Electro-Mechanics 009150

Company

삼성전기Samsung Electro-Mechanics

Insiders

Buys

538

Total Value

₩3.40T ($2.4B)

Avg Return

+7.69%

Last Filing

2026-06-04

Samsung Electro-Mechanics (009150) has 538 disclosed insider purchases and 485 disclosed disposals on record, filed by 10 distinct insiders. Together those filings cover ₩3.40T ($2.4B) in reported transaction value. The earliest filing StockDrifts holds for Samsung Electro-Mechanics is dated 2024-01-02; the most recent is 2026-06-04. Across these filings the average return since disclosure is +7.69%, 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
2026-09-01	SELL	Market Sell	김응수 Eungsoo Kim	vice president	-800	₩1,430,000	+2.0%	₩1.2B ($803K)
2026-08-03	BUY	Market Buy	김정렬 Kim Jeong-ryeol	Managing Director	1	₩1,181,000	+31.9%	₩1M ($696)
2026-07-30	BUY	Market Buy	김정렬 Kim Jeong-ryeol	Managing Director	2	₩879,000	+77.3%	₩2M ($2K)
2026-07-14	BUY	Market Buy	김정렬 Kim Jeong-ryeol	Managing Director	2	₩1,260,000	+23.6%	₩3M ($2K)
2026-06-04	BUY	Market Buy	국민연금공단 National Pension Service	-	18.5K	₩1,716,000	+2.4%	₩31.8B ($22.1M)
2026-06-04	SELL	Market Sell	국민연금공단 National Pension Service	-	-60.4K	₩1,716,000	-2.4%	₩103.7B ($72.0M)
2026-06-02	BUY	Market Buy	국민연금공단 National Pension Service	-	3.6K	₩1,813,000	-3.1%	₩6.5B ($4.5M)
2026-06-02	SELL	Market Sell	국민연금공단 National Pension Service	-	-30.7K	₩1,813,000	+3.1%	₩55.7B ($38.7M)
2026-06-01	BUY	Market Buy	국민연금공단 National Pension Service	-	513	₩2,005,000	-12.4%	₩1.0B ($714K)
2026-06-01	SELL	Market Sell	국민연금공단 National Pension Service	-	-40.7K	₩2,005,000	+12.4%	₩81.6B ($56.6M)
2026-05-29	SELL	Market Sell	국민연금공단 National Pension Service	-	-54.2K	₩2,127,000	+17.4%	₩115.3B ($80.1M)
2026-05-29	BUY	Market Buy	국민연금공단 National Pension Service	-	3.0K	₩2,127,000	-17.4%	₩6.4B ($4.5M)
2026-05-28	BUY	Market Buy	국민연금공단 National Pension Service	-	7.4K	₩1,849,000	-5.0%	₩13.7B ($9.5M)
2026-05-28	SELL	Market Sell	국민연금공단 National Pension Service	-	-17.6K	₩1,849,000	+5.0%	₩32.6B ($22.7M)
2026-05-27	SELL	Market Sell	국민연금공단 National Pension Service	-	-20.1K	₩1,630,000	-7.8%	₩32.7B ($22.7M)
2026-05-27	BUY	Market Buy	국민연금공단 National Pension Service	-	2.2K	₩1,630,000	+7.8%	₩3.5B ($2.5M)
2026-05-26	SELL	Market Sell	국민연금공단 National Pension Service	-	-10.6K	₩1,572,000	-11.8%	₩16.6B ($11.5M)
2026-05-26	BUY	Market Buy	국민연금공단 National Pension Service	-	19.4K	₩1,572,000	+11.8%	₩30.5B ($21.1M)
2026-05-22	BUY	Market Buy	국민연금공단 National Pension Service	-	10.5K	₩1,340,000	+31.1%	₩14.1B ($9.8M)
2026-05-22	SELL	Market Sell	국민연금공단 National Pension Service	-	-23.6K	₩1,340,000	-31.1%	₩31.6B ($22.0M)
2026-05-21	BUY	Market Buy	국민연금공단 National Pension Service	-	13.9K	₩1,204,000	+45.9%	₩16.8B ($11.6M)
2026-05-21	SELL	Market Sell	국민연금공단 National Pension Service	-	-13.3K	₩1,204,000	-45.9%	₩16.0B ($11.1M)
2026-05-20	SELL	Market Sell	국민연금공단 National Pension Service	-	-17.0K	₩1,061,000	-65.6%	₩18.1B ($12.6M)
2026-05-20	BUY	Market Buy	국민연금공단 National Pension Service	-	1.3K	₩1,061,000	+65.6%	₩1.4B ($968K)
2026-05-19	SELL	Market Sell	국민연금공단 National Pension Service	-	-8.1K	₩987,000	-78.0%	₩8.0B ($5.5M)
2026-05-19	BUY	Market Buy	국민연금공단 National Pension Service	-	4.2K	₩987,000	+78.0%	₩4.1B ($2.9M)
2026-05-19	SELL	Market Sell	국민연금공단 National Pension Service	-	-19.4K	₩987,000	-78.0%	₩19.1B ($13.3M)
2026-05-18	SELL	Market Sell	국민연금공단 National Pension Service	-	-5.7K	₩1,031,000	-70.4%	₩5.8B ($4.1M)
2026-05-18	BUY	Market Buy	국민연금공단 National Pension Service	-	1.4K	₩1,031,000	+70.4%	₩1.4B ($987K)
2026-05-15	SELL	Market Sell	국민연금공단 National Pension Service	-	-6.3K	₩1,010,000	-74.0%	₩6.4B ($4.4M)
2026-05-15	BUY	Market Buy	국민연금공단 National Pension Service	-	1.0K	₩1,010,000	+74.0%	₩1.0B ($701K)
2026-05-15	BUY	Market Buy	국민연금공단 National Pension Service	-	9.2K	₩1,010,000	+74.0%	₩9.3B ($6.5M)
2026-05-14	BUY	Market Buy	국민연금공단 National Pension Service	-	28	₩1,024,000	+71.6%	₩29M ($20K)
2026-05-14	SELL	Market Sell	국민연금공단 National Pension Service	-	-13.8K	₩1,024,000	-71.6%	₩14.1B ($9.8M)
2026-05-13	BUY	Market Buy	국민연금공단 National Pension Service	-	1.9K	₩1,029,000	+70.8%	₩1.9B ($1.3M)
2026-05-13	SELL	Market Sell	국민연금공단 National Pension Service	-	-11.7K	₩1,029,000	-70.8%	₩12.0B ($8.3M)
2026-05-13	BUY	Market Buy	국민연금공단 National Pension Service	-	5.7K	₩1,029,000	+70.8%	₩5.9B ($4.1M)
2026-05-13	SELL	Market Sell	국민연금공단 National Pension Service	-	-3.9K	₩1,029,000	-70.8%	₩4.0B ($2.8M)
2026-05-12	SELL	Market Sell	국민연금공단 National Pension Service	-	-14.9K	₩958,000	-83.4%	₩14.2B ($9.9M)
2026-05-11	SELL	Market Sell	국민연금공단 National Pension Service	-	-10.0K	₩900,000	-95.2%	₩9.0B ($6.2M)
2026-05-11	BUY	Market Buy	국민연금공단 National Pension Service	-	630	₩900,000	+95.2%	₩567M ($394K)
2026-05-08	BUY	Market Buy	국민연금공단 National Pension Service	-	691	₩914,000	+92.2%	₩632M ($439K)
2026-05-08	SELL	Market Sell	국민연금공단 National Pension Service	-	-200	₩914,000	-92.2%	₩183M ($127K)
2026-05-08	SELL	Market Sell	국민연금공단 National Pension Service	-	-5.8K	₩914,000	-92.2%	₩5.3B ($3.7M)
2026-05-07	BUY	Market Buy	국민연금공단 National Pension Service	-	6.7K	₩917,000	+91.6%	₩6.2B ($4.3M)
2026-05-07	SELL	Market Sell	국민연금공단 National Pension Service	-	-8.0K	₩917,000	-91.6%	₩7.4B ($5.1M)
2026-05-06	SELL	Market Sell	국민연금공단 National Pension Service	-	-6.5K	₩912,000	-92.7%	₩5.9B ($4.1M)
2026-05-06	BUY	Market Buy	국민연금공단 National Pension Service	-	4.5K	₩912,000	+92.7%	₩4.1B ($2.9M)
2026-05-06	SELL	Market Sell	국민연금공단 National Pension Service	-	-5.5K	₩912,000	-92.7%	₩5.0B ($3.5M)
2026-05-04	SELL	Market Sell	국민연금공단 National Pension Service	-	-15.9K	₩918,000	-91.4%	₩14.6B ($10.1M)

Showing the 50 most recent of 200 filings.

Frequently asked questions

Who has been buying Samsung Electro-Mechanics stock?: 10 distinct insiders have filed 538 disclosed insider purchases in Samsung Electro-Mechanics (009150), most recently on 2026-06-04. 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 Samsung Electro-Mechanics have?: Samsung Electro-Mechanics has 538 buy-side and 485 sell-side disclosures on record, covering ₩3.40T ($2.4B) in total reported value, spanning 2024-01-02 to 2026-06-04.
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.