Who has been buying SJG Sejong stock?

14 distinct insiders have filed 22 disclosed insider purchases in SJG Sejong (033530), most recently on 2026-01-09. 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 SJG Sejong have?

SJG Sejong has 22 buy-side and 7 sell-side disclosures on record, covering ₩508M ($353K) in total reported value, spanning 2023-08-04 to 2026-01-09.

Where does StockDrifts get SJG Sejong 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.

SJG Sejong 033530

Company

SJG세종SJG Sejong

Insiders

Buys

Total Value

₩508M ($353K)

Avg Return

+63.22%

Last Filing

2026-01-09

SJG Sejong (033530) has 22 disclosed insider purchases and 7 disclosed disposals on record, filed by 14 distinct insiders. Together those filings cover ₩508M ($353K) in reported transaction value. The earliest filing StockDrifts holds for SJG Sejong is dated 2023-08-04; the most recent is 2026-01-09. 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 +63.22%, 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
2026-01-09	SELL	Market Sell	고성부 high voice	Managing Director	-3.0K	₩9,880	-4.5%	₩30M ($21K)
2025-12-29	SELL	Market Sell	배정한 assigned	thanks	-5.7K	₩10,430	+1.0%	₩59M ($41K)
2025-12-09	SELL	Market Sell	이동원 Lee Dong-won	CEO	-5.0K	₩9,630	-7.3%	₩48M ($33K)
2025-12-09	SELL	Market Sell	옥현근 Hyeongeun Ok	vice president	-2.0K	₩9,630	-7.3%	₩19M ($13K)
2025-11-07	SELL	Market Sell	옥현근 Hyeongeun Ok	vice president	-990	₩9,160	-12.8%	₩9M ($6K)
2025-10-23	SELL	Market Sell	최정연 Jeongyeon Choi	CEO	-6.5K	₩8,840	-16.9%	₩57M ($40K)
2025-08-19	SELL	Market Sell	노진호 Noh Jin-ho	Managing Director	-5.0K	₩5,030	-105.4%	₩25M ($17K)
2024-11-01	BUY	신규선임	주세언 Joo Se-eon	Managing Director	1.1K	₩4,440	+132.7%	₩5M ($3K)
2024-08-21	BUY	Market Buy	고성부 high voice	Managing Director	3.0K	₩5,060	+104.2%	₩15M ($11K)
2024-08-07	BUY	Market Buy	노진호 Noh Jin-ho	Managing Director	5.0K	₩4,530	+128.0%	₩23M ($16K)
2024-07-25	BUY	Market Buy	이석길 Lee Seok-gil	president	4.2K	₩4,970	+107.8%	₩21M ($14K)
2024-07-24	BUY	Market Buy	이석길 Lee Seok-gil	president	1.3K	₩5,050	+104.5%	₩7M ($5K)
2024-07-18	BUY	Market Buy	김헌진 Heonjin Kim	Managing Director	2.0K	₩5,100	+102.5%	₩10M ($7K)
2024-07-16	BUY	Market Buy	김건욱 Kim Geon-wook	Managing Director	1.0K	₩5,200	+98.7%	₩5M ($4K)
2024-07-15	BUY	Market Buy	김복용 Kim Bok-yong	Managing Director	3.0K	₩5,170	+99.8%	₩16M ($11K)
2024-07-15	BUY	Market Buy	김건욱 Kim Geon-wook	Managing Director	1.0K	₩5,170	+99.8%	₩5M ($4K)
2024-07-12	BUY	Market Buy	김용민 Yongmin Kim	Managing Director	2.0K	₩5,170	+99.8%	₩10M ($7K)
2024-07-08	BUY	Market Buy	최형렬 Choi Hyeong-ryeol	Managing Director	2.0K	₩5,200	+98.7%	₩10M ($7K)
2024-07-05	BUY	Market Buy	옥현근 Hyeongeun Ok	Managing Director	3.0K	₩5,200	+98.7%	₩16M ($11K)
2024-07-04	BUY	Market Buy	이동원 Lee Dong-won	CEO	5.0K	₩5,240	+97.1%	₩26M ($18K)
2024-07-04	BUY	Market Buy	배정한 assigned	thanks	5.7K	₩5,240	+97.1%	₩30M ($21K)
2024-07-03	BUY	Market Buy	이상국 Lee Sang-guk	Managing Director	2.0K	₩5,260	+96.4%	₩11M ($7K)
2024-06-28	BUY	Market Buy	최정연 Jeongyeon Choi	CEO	6.0K	₩5,600	+84.5%	₩34M ($23K)
2024-06-26	BUY	Market Buy	최정연 Jeongyeon Choi	CEO	4.0K	₩5,730	+80.3%	₩23M ($16K)
2024-02-27	BUY	Market Buy	옥현근 Hyeongeun Ok	Managing Director	10	₩5,990	+72.5%	₩60K ($42)
2024-02-22	BUY	Market Buy	오기열 Oh Ki-yeol	Managing Director	100	-	-	-
2023-08-30	BUY	Market Buy	오기열 Oh Ki-yeol	Managing Director	100	-	-	-
2023-08-09	BUY	Market Buy	오기열 Oh Ki-yeol	Managing Director	50	-	-	-
2023-08-07	BUY	Market Buy	오기열 Oh Ki-yeol	Managing Director	50	-	-	-
2023-08-04	BUY	Market Buy	오기열 Oh Ki-yeol	Managing Director	100	-	-	-

Frequently asked questions

Who has been buying SJG Sejong stock?: 14 distinct insiders have filed 22 disclosed insider purchases in SJG Sejong (033530), most recently on 2026-01-09. 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 SJG Sejong have?: SJG Sejong has 22 buy-side and 7 sell-side disclosures on record, covering ₩508M ($353K) in total reported value, spanning 2023-08-04 to 2026-01-09.
Where does StockDrifts get SJG Sejong 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 SJG Sejong. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.