Who has been buying 에프알텍 stock?

1 distinct insiders have filed 18 disclosed insider purchases in 에프알텍 (073540), most recently on 2026-07-10. 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 에프알텍 have?

에프알텍 has 18 buy-side and 12 sell-side disclosures on record, covering ₩9.3B ($6.4M) in total reported value, spanning 2025-04-21 to 2026-07-10.

Where does StockDrifts get 에프알텍 insider data?

From DART D001/D002 insider disclosures — the official filing system run by the Financial Supervisory Service (Korea). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from DART.

Do insider buys in Korean stocks predict returns?

Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean DART filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

에프알텍 073540

Company

에프알텍

Insiders

Buys

Total Value

₩9.3B ($6.4M)

Avg Return

-0.46%

Last Filing

2026-07-10

에프알텍 (073540) has 18 disclosed insider purchases and 12 disclosed disposals on record, filed by 1 distinct insiders. Together those filings cover ₩9.3B ($6.4M) in reported transaction value. The earliest filing StockDrifts holds for 에프알텍 is dated 2025-04-21; the most recent is 2026-07-10. All of it is parsed from DART D001/D002 insider disclosures, the official disclosure system operated by the Financial Supervisory Service (Korea). Across these filings the average return since disclosure is -0.46%, 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
2026-08-14	SELL	Market Sell	김대용 Daeyong Kim	-	-31.0K	₩2,455	+0.0%	₩76M ($53K)
2026-07-10	BUY	Market Buy	김대용 Daeyong Kim	-	54.2K	₩2,165	-2.5%	₩117M ($82K)
2025-12-29	SELL	증여	남재국	CEO	-228.0K	₩2,000	+0.0%	₩456M ($317K)
2025-12-29	SELL	증여	남재국	CEO	-342.0K	₩2,000	+0.0%	₩684M ($475K)
2025-10-22	SELL	Market Sell	김대용 Daeyong Kim	-	-15.7K	₩2,250	+11.1%	₩35M ($25K)
2025-10-21	SELL	Market Sell	김대용 Daeyong Kim	-	-114	₩2,305	+13.2%	₩263K ($182)
2025-10-20	SELL	Market Sell	김대용 Daeyong Kim	-	-133.2K	₩2,380	+16.0%	₩317M ($220K)
2025-10-16	SELL	Market Sell	김대용 Daeyong Kim	-	-187.2K	₩2,395	+16.5%	₩448M ($311K)
2025-10-14	SELL	Market Sell	김대용 Daeyong Kim	-	-211.0K	₩2,400	+16.7%	₩506M ($352K)
2025-09-12	BUY	Market Buy	김대용 Daeyong Kim	-	18.4K	₩2,570	-22.2%	₩47M ($33K)
2025-09-10	BUY	Market Buy	김대용 Daeyong Kim	-	87.7K	₩2,600	-23.1%	₩228M ($158K)
2025-09-09	BUY	Market Buy	김대용 Daeyong Kim	-	197.8K	₩2,635	-24.1%	₩521M ($362K)
2025-09-08	BUY	Market Buy	김대용 Daeyong Kim	-	245.3K	₩2,735	-26.9%	₩671M ($466K)
2025-09-08	SELL	Market Sell	김대용 Daeyong Kim	-	-17.7K	₩2,735	+26.9%	₩48M ($34K)
2025-09-05	BUY	Market Buy	김대용 Daeyong Kim	-	31.2K	₩2,730	-26.7%	₩85M ($59K)
2025-09-04	SELL	Market Sell	김대용 Daeyong Kim	-	-277.8K	₩2,650	+24.5%	₩736M ($511K)
2025-09-04	BUY	Market Buy	김대용 Daeyong Kim	-	895.1K	₩2,650	-24.5%	₩2.4B ($1.6M)
2025-08-25	SELL	Market Sell	김대용 Daeyong Kim	-	-408.5K	₩1,986	-0.7%	₩811M ($563K)
2025-08-25	BUY	Market Buy	김대용 Daeyong Kim	-	483.7K	₩1,986	+0.7%	₩961M ($667K)
2025-08-22	BUY	Market Buy	김대용 Daeyong Kim	-	12.0K	₩2,030	-1.5%	₩24M ($17K)
2025-08-20	BUY	Market Buy	김대용 Daeyong Kim	-	31.5K	₩1,998	+0.1%	₩63M ($44K)
2025-08-18	BUY	Market Buy	김대용 Daeyong Kim	-	7.7K	₩2,060	-2.9%	₩16M ($11K)
2025-08-15	SELL	Market Sell	김대용 Daeyong Kim	-	-33.2K	₩2,060	+2.9%	₩68M ($47K)
2025-08-15	BUY	Market Buy	김대용 Daeyong Kim	-	40.9K	₩2,060	-2.9%	₩84M ($59K)
2025-08-14	SELL	Market Sell	김대용 Daeyong Kim	-	-105.2K	₩2,080	+3.9%	₩219M ($152K)
2025-08-14	BUY	Market Buy	김대용 Daeyong Kim	-	174.6K	₩2,080	-3.9%	₩363M ($252K)
2025-06-19	BUY	Market Buy	김대용 Daeyong Kim	-	8.3K	₩1,913	+4.5%	₩16M ($11K)
2025-06-16	BUY	Market Buy	김대용 Daeyong Kim	-	57.5K	₩2,040	-2.0%	₩117M ($81K)
2025-05-16	BUY	Market Buy	김대용 Daeyong Kim	-	30.0K	₩1,768	+13.1%	₩53M ($37K)
2025-04-23	BUY	Market Buy	김대용 Daeyong Kim	-	25.4K	₩1,570	+27.4%	₩40M ($28K)
2025-04-23	SELL	Market Sell	김대용 Daeyong Kim	-	-2.9K	₩1,570	-27.4%	₩4M ($3K)
2025-04-21	BUY	Market Buy	김대용 Daeyong Kim	-	173.3K	₩1,590	+25.8%	₩276M ($191K)
2025-04-21	SELL	Market Sell	김대용 Daeyong Kim	-	-11.4K	₩1,590	-25.8%	₩18M ($13K)

Frequently asked questions

Who has been buying 에프알텍 stock?: 1 distinct insiders have filed 18 disclosed insider purchases in 에프알텍 (073540), most recently on 2026-07-10. 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 에프알텍 have?: 에프알텍 has 18 buy-side and 12 sell-side disclosures on record, covering ₩9.3B ($6.4M) in total reported value, spanning 2025-04-21 to 2026-07-10.
Where does StockDrifts get 에프알텍 insider data?: From DART D001/D002 insider disclosures — the official filing system run by the Financial Supervisory Service (Korea). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from DART.
Do insider buys in Korean stocks predict returns?: Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean DART filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

Source filings

Every trade listed above is disclosed in DART D001/D002 insider disclosures, filed with the Financial Supervisory Service (Korea). View the original DART filings for 에프알텍. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.