Who has been buying FSN stock?

4 distinct insiders have filed 32 disclosed insider purchases in FSN (214270), most recently on 2026-07-13. 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 FSN have?

FSN has 32 buy-side and 8 sell-side disclosures on record, covering ₩1.3B ($894K) in total reported value, spanning 2024-03-28 to 2026-07-13.

Where does StockDrifts get FSN 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.

FSN 214270

Company

FSN

Insiders

Buys

Total Value

₩1.3B ($894K)

Avg Return

+2.36%

Last Filing

2026-07-13

FSN (214270) has 32 disclosed insider purchases and 8 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩1.3B ($894K) in reported transaction value. The earliest filing StockDrifts holds for FSN is dated 2024-03-28; the most recent is 2026-07-13. 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 +2.36%, 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
2026-08-03	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	1.0K	₩1,365	+3.7%	₩1M ($896)
2026-08-03	BUY	Market Buy	김경호 Kyungho Kim	CEO	2.8K	₩1,365	+1.1%	₩4M ($2K)
2026-08-03	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	350	₩1,365	+3.7%	₩452K ($314)
2026-08-03	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	1.0K	₩1,365	+3.7%	₩1M ($896)
2026-08-03	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	790	₩1,365	+3.7%	₩1M ($708)
2026-07-31	BUY	Market Buy	김경호 Kyungho Kim	CEO	5.0K	₩1,325	+4.2%	₩6M ($4K)
2026-07-30	BUY	Market Buy	김경호 Kyungho Kim	CEO	2.6K	₩1,290	+7.0%	₩3M ($2K)
2026-07-13	BUY	Market Buy	김제성 Kim Je-seong	Internal director	9.0K	₩1,370	+0.5%	₩12M ($8K)
2026-07-10	BUY	Market Buy	김제성 Kim Je-seong	Internal director	12.0K	₩1,370	+0.5%	₩16M ($11K)
2026-07-09	BUY	Market Buy	김경호 Kyungho Kim	CEO	2.0K	₩1,370	+0.5%	₩3M ($2K)
2026-06-26	BUY	Market Buy	김제성 Kim Je-seong	Internal director	8.2K	-	-	-
2026-06-25	BUY	Market Buy	김제성 Kim Je-seong	Internal director	21.0K	-	-	-
2026-06-25	BUY	Market Buy	김경호 Kyungho Kim	CEO	3.9K	-	-	-
2026-06-25	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	35.2K	-	-	-
2026-06-24	BUY	Market Buy	김경호 Kyungho Kim	CEO	1.1K	-	-	-
2026-06-24	BUY	Market Buy	김제성 Kim Je-seong	Internal director	5.2K	-	-	-
2026-06-23	BUY	Market Buy	김경호 Kyungho Kim	CEO	6.0K	-	-	-
2026-06-22	BUY	Market Buy	김경호 Kyungho Kim	CEO	3.0K	-	-	-
2026-06-10	BUY	Market Buy	김제성 Kim Je-seong	Internal director	700	₩1,328	-0.8%	₩930K ($646)
2026-06-09	BUY	Market Buy	김제성 Kim Je-seong	Internal director	1.6K	₩1,293	+1.9%	₩2M ($2K)
2026-06-08	BUY	Market Buy	김경호 Kyungho Kim	CEO	11.5K	-	-	-
2026-06-04	BUY	Market Buy	김경호 Kyungho Kim	CEO	1.0K	-	-	-
2026-06-01	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	18.4K	-	-	-
2026-06-01	BUY	Market Buy	김경호 Kyungho Kim	CEO	3.5K	-	-	-
2026-06-01	BUY	Market Buy	김제성 Kim Je-seong	Internal director	17.0K	-	-	-
2026-04-07	BUY	신규선임	최복규 Choi Bok-gyu	Other non-executive directors	65.5K	₩2,080	-2.4%	₩136M ($95K)
2026-03-06	BUY	Market Buy	정건영 Jeong Geon-young	Internal director	6.4K	-	-	-
2026-03-06	BUY	Market Buy	정건영 Jeong Geon-young	Internal director	758	-	-	-
2026-03-06	BUY	Market Buy	정건영 Jeong Geon-young	Internal director	1.0K	-	-	-
2026-03-06	BUY	Market Buy	정건영 Jeong Geon-young	Internal director	21.8K	-	-	-
2026-02-20	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	17.2K	₩1,988	+10.9%	₩34M ($24K)
2026-02-20	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	11.3K	₩1,988	+10.9%	₩22M ($16K)
2026-02-20	SELL	Market Sell	서정교 Seo Jeong-gyo	CEO	-38.5K	₩1,988	-10.9%	₩77M ($53K)
2026-02-13	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	1.7K	₩1,916	+15.1%	₩3M ($2K)
2026-02-13	SELL	Market Sell	서정교 Seo Jeong-gyo	CEO	-22.0K	₩1,916	-15.1%	₩42M ($29K)
2026-02-13	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	21.4K	₩1,916	+15.1%	₩41M ($28K)
2026-02-12	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	160.5K	₩1,875	+17.6%	₩301M ($209K)
2026-02-12	SELL	Market Sell	서정교 Seo Jeong-gyo	CEO	-117.0K	₩1,875	-17.6%	₩219M ($152K)
2026-02-12	SELL	Market Sell	서정교 Seo Jeong-gyo	CEO	-5.7K	₩1,875	-17.6%	₩11M ($7K)
2024-12-31	SELL	장외매도	이상석 Lee Sang-seok	CEO	-330.0K	₩1,828	-20.6%	₩603M ($419K)
2024-12-27	SELL	Market Sell	서정교 Seo Jeong-gyo	CEO	-29.1K	₩1,806	-22.1%	₩52M ($36K)
2024-12-27	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	28.5K	₩1,806	+22.1%	₩51M ($36K)
2024-12-26	SELL	Market Sell	서정교 Seo Jeong-gyo	CEO	-24.5K	₩1,846	-19.4%	₩45M ($31K)
2024-12-26	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	26.8K	₩1,846	+19.4%	₩49M ($34K)
2024-12-24	SELL	Market Sell	서정교 Seo Jeong-gyo	CEO	-13.2K	₩1,860	-18.6%	₩25M ($17K)
2024-12-24	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	24.8K	₩1,860	+18.6%	₩46M ($32K)
2024-12-23	BUY	Market Buy	서정교 Seo Jeong-gyo	CEO	35.7K	₩1,874	+17.7%	₩67M ($46K)
2024-12-23	SELL	Market Sell	서정교 Seo Jeong-gyo	CEO	-49.0K	₩1,874	-17.7%	₩92M ($64K)
2024-12-09	BUY	Market Buy	정건영 Jeong Geon-young	Internal director	50.0K	₩1,578	+39.7%	₩79M ($55K)
2024-03-28	BUY	신규선임	정건영 Jeong Geon-young	Internal director	290.0K	₩2,455	-10.2%	₩712M ($494K)

Frequently asked questions

Who has been buying FSN stock?: 4 distinct insiders have filed 32 disclosed insider purchases in FSN (214270), most recently on 2026-07-13. 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 FSN have?: FSN has 32 buy-side and 8 sell-side disclosures on record, covering ₩1.3B ($894K) in total reported value, spanning 2024-03-28 to 2026-07-13.
Where does StockDrifts get FSN 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 FSN. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.