Who has been buying RFHIC stock?

6 distinct insiders have filed 4 disclosed insider purchases in RFHIC (218410), most recently on 2026-03-13. 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 RFHIC have?

RFHIC has 4 buy-side and 24 sell-side disclosures on record, covering ₩1.3B ($881K) in total reported value, spanning 2024-06-11 to 2026-03-13.

Where does StockDrifts get RFHIC 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.

RFHIC 218410

Company

RFHIC

Insiders

Buys

Total Value

₩1.3B ($881K)

Avg Return

-3.28%

Last Filing

2026-03-13

RFHIC (218410) has 4 disclosed insider purchases and 24 disclosed disposals on record, filed by 6 distinct insiders. Together those filings cover ₩1.3B ($881K) in reported transaction value. The earliest filing StockDrifts holds for RFHIC is dated 2024-06-11; the most recent is 2026-03-13. 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 -3.28%, 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
2026-03-13	SELL	Market Sell	김주현 Joohyun Kim	Head of Management Division	-500	-	-	-
2026-03-13	SELL	Market Sell	강현철 Kang Hyeon-cheol	Head of Defense Business Division	-1.3K	-	-	-
2026-03-12	SELL	Market Sell	강현철 Kang Hyeon-cheol	Head of Defense Business Division	-1.2K	-	-	-
2026-03-12	SELL	Market Sell	김주현 Joohyun Kim	Head of Management Division	-1.0K	-	-	-
2026-03-12	SELL	Market Sell	강창현 Changhyun Kang	Director of Defense Industry Development Headquarters	-200	-	-	-
2026-03-11	SELL	Market Sell	강현철 Kang Hyeon-cheol	Head of Defense Business Division	-500	-	-	-
2026-03-10	SELL	Market Sell	강현철 Kang Hyeon-cheol	Head of Defense Business Division	-1.1K	-	-	-
2026-03-10	SELL	Market Sell	강창현 Changhyun Kang	Director of Defense Industry Development Headquarters	-300	-	-	-
2026-03-09	SELL	Market Sell	송인용 Song In-yong	CS Group Group Leader	-10.0K	-	-	-
2026-03-09	SELL	Market Sell	강현철 Kang Hyeon-cheol	Head of Defense Business Division	-2.4K	-	-	-
2026-03-09	SELL	Market Sell	김주현 Joohyun Kim	Head of Management Division	-8.0K	-	-	-
2026-02-23	BUY	신규보고	강창현 Changhyun Kang	Director of Defense Industry Development Headquarters	3.2K	₩59,000	-2.9%	₩189M ($131K)
2026-02-10	BUY	주식매수선택권	송인용 Song In-yong	CS Group Group Leader	5.0K	₩47,000	+21.9%	₩235M ($163K)
2026-02-10	BUY	주식매수선택권	강현철 Kang Hyeon-cheol	Head of Defense Business Division	6.0K	₩47,000	+21.9%	₩282M ($196K)
2026-02-10	BUY	주식매수선택권	김주현 Joohyun Kim	Head of Management Division	8.0K	₩47,000	+21.9%	₩376M ($261K)
2025-11-07	SELL	Market Sell	박동섭 Park Dong-seop	CS Group Group Leader	-300	₩34,000	-68.5%	₩10M ($7K)
2025-11-07	SELL	Market Sell	강현철 Kang Hyeon-cheol	Head of Defense Business Division	-400	₩34,000	-68.5%	₩14M ($9K)
2025-11-07	SELL	Market Sell	김주현 Joohyun Kim	president	-1.0K	₩34,000	-68.5%	₩34M ($24K)
2025-11-05	BUY	Market Buy	송인용 Song In-yong	CS Group Group Leader	85	₩34,050	+68.3%	₩3M ($2K)
2025-11-05	SELL	Market Sell	김주현 Joohyun Kim	president	-200	₩34,050	-68.3%	₩7M ($5K)
2025-11-05	SELL	Market Sell	강현철 Kang Hyeon-cheol	Head of Defense Business Division	-150	₩34,050	-68.3%	₩5M ($4K)
2025-11-05	SELL	Market Sell	송인용 Song In-yong	CS Group Group Leader	-10.1K	₩34,050	-68.3%	₩343M ($238K)
2025-11-05	BUY	Market Buy	박동섭 Park Dong-seop	CS Group Group Leader	700	₩34,050	+68.3%	₩24M ($17K)
2025-11-04	SELL	Market Sell	강현철 Kang Hyeon-cheol	Head of Defense Business Division	-100	₩36,750	-55.9%	₩4M ($3K)
2025-11-04	SELL	Market Sell	김주현 Joohyun Kim	president	-800	₩36,750	-55.9%	₩29M ($20K)
2025-11-03	SELL	Market Sell	박동섭 Park Dong-seop	CS Group Group Leader	-10.4K	₩36,300	-57.9%	₩378M ($262K)
2025-11-03	SELL	Market Sell	강현철 Kang Hyeon-cheol	Head of Defense Business Division	-2.0K	₩36,300	-57.9%	₩73M ($50K)
2025-11-03	SELL	Market Sell	김주현 Joohyun Kim	president	-3.3K	₩36,300	-57.9%	₩120M ($83K)
2025-09-11	SELL	Market Sell	송인용 Song In-yong	CS Group Group Leader	-342	₩29,550	-93.9%	₩10M ($7K)
2025-09-09	SELL	Market Sell	강현철 Kang Hyeon-cheol	Head of Defense Business Division	-350	₩28,350	-102.1%	₩10M ($7K)
2025-07-25	BUY	주식매수선택권	강현철 Kang Hyeon-cheol	Head of Defense Business Division	3.0K	₩27,900	+105.4%	₩84M ($58K)
2025-07-25	BUY	주식매수선택권	김주현 Joohyun Kim	president	7.0K	₩27,900	+105.4%	₩195M ($136K)
2025-07-25	BUY	주식매수선택권	송인용 Song In-yong	CS Group Group Leader	5.0K	₩27,900	+105.4%	₩140M ($97K)
2025-05-15	BUY	수증	조덕수 Jo Deok-su	CEO	265.0K	₩16,180	+254.1%	₩4.3B ($3.0M)
2025-05-15	BUY	수증	조삼열 Cho Sam-yeol	Chairman	279.5K	₩16,180	+254.1%	₩4.5B ($3.1M)
2025-02-18	BUY	자사주상여금	송인용 Song In-yong	CS Group Group Leader	500	₩19,200	+198.4%	₩10M ($7K)
2025-02-18	BUY	자사주상여금	강현철 Kang Hyeon-cheol	Head of Defense Business Division	500	₩19,200	+198.4%	₩10M ($7K)
2025-02-18	BUY	자사주상여금	박동섭 Park Dong-seop	CS Group Group Leader	500	₩19,200	+198.4%	₩10M ($7K)
2024-12-24	SELL	증여	조삼열 Cho Sam-yeol	Internal director	-280.0K	₩13,080	-338.1%	₩3.7B ($2.5M)
2024-12-24	SELL	증여	조삼열 Cho Sam-yeol	Internal director	-280.0K	₩13,080	-338.1%	₩3.7B ($2.5M)
2024-12-24	SELL	증여	조삼열 Cho Sam-yeol	Internal director	-280.0K	₩13,080	-338.1%	₩3.7B ($2.5M)
2024-09-11	BUY	Market Buy	권병현 Byeonghyun Kwon	Defense Aerospace Division	5.0K	₩11,040	+419.0%	₩55M ($38K)
2024-06-20	BUY	Market Buy	권병현 Byeonghyun Kwon	Defense Aerospace Division	10.0K	₩15,060	+280.5%	₩151M ($105K)
2024-06-11	BUY	신규보고	권병현 Byeonghyun Kwon	Defense Aerospace Division	10.0K	₩15,920	+259.9%	₩159M ($111K)

Frequently asked questions

Who has been buying RFHIC stock?: 6 distinct insiders have filed 4 disclosed insider purchases in RFHIC (218410), most recently on 2026-03-13. 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 RFHIC have?: RFHIC has 4 buy-side and 24 sell-side disclosures on record, covering ₩1.3B ($881K) in total reported value, spanning 2024-06-11 to 2026-03-13.
Where does StockDrifts get RFHIC 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 RFHIC. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.