Who has been buying RF Systems stock?

4 distinct insiders have filed 52 disclosed insider purchases in RF Systems (474610), 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 RF Systems have?

RF Systems has 52 buy-side and 0 sell-side disclosures on record, covering ₩1.9B ($1.3M) in total reported value, spanning 2024-11-19 to 2026-07-10.

Where does StockDrifts get RF Systems 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.

RF Systems 474610

Company

RF시스템즈RF Systems

Insiders

Buys

Total Value

₩1.9B ($1.3M)

Avg Return

+34.14%

Last Filing

2026-07-10

RF Systems (474610) has 52 disclosed insider purchases and 0 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩1.9B ($1.3M) in reported transaction value. The earliest filing StockDrifts holds for RF Systems is dated 2024-11-19; 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 +34.14%, 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
2026-08-07	BUY	Market Buy	RFHIC	-	10.0K	₩7,110	+10.8%	₩71M ($49K)
2026-08-05	BUY	Market Buy	RFHIC	-	10.0K	₩7,140	+10.4%	₩71M ($50K)
2026-08-03	BUY	Market Buy	RFHIC	-	5.0K	₩6,080	+29.6%	₩30M ($21K)
2026-07-30	BUY	Market Buy	강대룡 Kang Dae-ryong	Managing Director	2.0K	₩4,995	+32.7%	₩10M ($7K)
2026-07-10	BUY	Market Buy	강대룡 Kang Dae-ryong	Managing Director	2.0K	₩6,550	-9.9%	₩13M ($9K)
2026-06-26	BUY	Market Buy	강대룡 Kang Dae-ryong	Managing Director	2.0K	₩6,480	+0.0%	₩13M ($9K)
2026-06-26	BUY	Market Buy	김주현 Joohyun Kim	Division head	1.0K	₩6,480	+0.0%	₩6M ($5K)
2026-06-15	BUY	Market Buy	강대룡 Kang Dae-ryong	Managing Director	602	₩8,340	-3.6%	₩5M ($3K)
2026-06-15	BUY	Market Buy	김주현 Joohyun Kim	Division head	500	₩8,340	-3.6%	₩4M ($3K)
2026-06-12	BUY	Market Buy	강대룡 Kang Dae-ryong	Managing Director	5.0K	₩8,150	-1.4%	₩41M ($28K)
2026-06-12	BUY	Market Buy	김주현 Joohyun Kim	Division head	1.5K	₩8,150	-1.4%	₩12M ($8K)
2026-05-22	BUY	주식매수선택권	한기우 Kiwoo Han	vice president	100.0K	₩13,610	-6.9%	₩1.4B ($945K)
2026-05-22	BUY	주식매수선택권	차성일 Cha Seong-il	Managing Director	12.5K	₩13,610	-6.9%	₩170M ($118K)
2026-03-04	BUY	신규보고	강대룡 Kang Dae-ryong	Managing Director	3.0K	-	-	-
2026-01-09	BUY	Market Buy	RFHIC	-	8.5K	₩5,260	+29.3%	₩45M ($31K)
2026-01-08	BUY	Market Buy	RFHIC	-	12.0K	₩5,260	+29.3%	₩63M ($44K)
2026-01-07	BUY	Market Buy	RFHIC	-	9.7K	₩5,400	+25.9%	₩52M ($36K)
2025-12-30	BUY	Market Buy	RFHIC	-	10.0K	₩4,765	+42.7%	₩48M ($33K)
2025-12-29	BUY	Market Buy	RFHIC	-	10.3K	₩4,910	+38.5%	₩51M ($35K)
2025-12-26	BUY	Market Buy	RFHIC	-	8.0K	₩4,920	+38.2%	₩39M ($27K)
2025-12-22	BUY	Market Buy	RFHIC	-	4.0K	₩5,000	+36.0%	₩20M ($14K)
2025-12-19	BUY	Market Buy	RFHIC	-	7.6K	₩4,965	+37.0%	₩38M ($26K)
2025-12-18	BUY	Market Buy	RFHIC	-	5.0K	₩4,305	+58.0%	₩22M ($15K)
2025-12-17	BUY	Market Buy	RFHIC	-	13.0K	₩4,400	+54.5%	₩57M ($40K)
2025-12-16	BUY	Market Buy	RFHIC	-	2.0K	₩4,315	+57.6%	₩9M ($6K)
2025-09-05	BUY	Market Buy	RFHIC	-	10.9K	₩4,520	+50.4%	₩49M ($34K)
2025-09-04	BUY	Market Buy	RFHIC	-	10.0K	₩4,450	+52.8%	₩45M ($31K)
2025-09-03	BUY	Market Buy	RFHIC	-	43	₩4,455	+52.6%	₩192K ($133)
2025-09-02	BUY	Market Buy	RFHIC	-	5.0K	₩4,425	+53.7%	₩22M ($15K)
2025-09-01	BUY	Market Buy	RFHIC	-	5.0K	₩4,340	+56.7%	₩22M ($15K)
2025-08-29	BUY	Market Buy	RFHIC	-	10.0K	₩4,390	+54.9%	₩44M ($30K)
2025-08-27	BUY	Market Buy	RFHIC	-	5.0K	₩4,375	+55.4%	₩22M ($15K)
2025-08-26	BUY	Market Buy	RFHIC	-	498	₩4,450	+52.8%	₩2M ($2K)
2025-08-25	BUY	Market Buy	RFHIC	-	5.0K	₩4,545	+49.6%	₩23M ($16K)
2025-08-19	BUY	Market Buy	RFHIC	-	5.8K	₩4,305	+58.0%	₩25M ($17K)
2025-08-18	BUY	Market Buy	RFHIC	-	5.0K	₩4,225	+61.0%	₩21M ($15K)
2025-08-14	BUY	Market Buy	RFHIC	-	5.0K	₩4,110	+65.5%	₩21M ($14K)
2025-08-13	BUY	Market Buy	RFHIC	-	10.0K	₩4,115	+65.3%	₩41M ($29K)
2025-08-12	BUY	Market Buy	RFHIC	-	15.0K	₩4,155	+63.7%	₩62M ($43K)
2025-08-11	BUY	Market Buy	RFHIC	-	15.0K	₩4,275	+59.1%	₩64M ($45K)
2025-07-15	BUY	Market Buy	한기우 Kiwoo Han	CEO	20.5K	₩4,405	+54.4%	₩90M ($63K)
2025-07-14	BUY	Market Buy	한기우 Kiwoo Han	CEO	10.0K	₩4,420	+53.9%	₩44M ($31K)
2025-07-11	BUY	Market Buy	한기우 Kiwoo Han	CEO	1.5K	₩4,475	+52.0%	₩7M ($5K)
2025-07-07	BUY	주식매수선택권	이주현 Joohyun Lee	moving	12.5K	₩4,490	+51.5%	₩56M ($39K)
2025-06-19	BUY	Market Buy	한기우 Kiwoo Han	CEO	12.0K	₩4,825	+40.9%	₩58M ($40K)
2025-03-21	BUY	Market Buy	RFHIC	-	5.0K	₩5,270	+29.0%	₩26M ($18K)
2025-03-20	BUY	Market Buy	RFHIC	-	10.0K	₩5,570	+22.1%	₩56M ($39K)
2025-03-19	BUY	Market Buy	RFHIC	-	14.0K	₩5,900	+15.3%	₩83M ($57K)
2025-03-18	BUY	Market Buy	RFHIC	-	14.0K	₩5,740	+18.5%	₩80M ($56K)
2025-03-17	BUY	Market Buy	RFHIC	-	7.0K	₩5,740	+18.5%	₩40M ($28K)

Showing the 50 most recent of 68 filings.

Frequently asked questions

Who has been buying RF Systems stock?: 4 distinct insiders have filed 52 disclosed insider purchases in RF Systems (474610), 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 RF Systems have?: RF Systems has 52 buy-side and 0 sell-side disclosures on record, covering ₩1.9B ($1.3M) in total reported value, spanning 2024-11-19 to 2026-07-10.
Where does StockDrifts get RF Systems 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 RF Systems. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.