Who has been buying Samsung SDS stock?

51 distinct insiders have filed 98 disclosed insider purchases in Samsung SDS (018260), most recently on 2026-07-15. 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 Samsung SDS have?

Samsung SDS has 98 buy-side and 7 sell-side disclosures on record, covering ₩26.8B ($18.6M) in total reported value, spanning 2024-12-02 to 2026-07-15.

Do insider buys in Korean stocks predict returns?

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

Samsung SDS 018260

Company

삼성에스디에스Samsung SDS

Insiders

Buys

Total Value

₩26.8B ($18.6M)

Avg Return

+8.37%

Last Filing

2026-07-15

Samsung SDS (018260) has 98 disclosed insider purchases and 7 disclosed disposals on record, filed by 51 distinct insiders. Together those filings cover ₩26.8B ($18.6M) in reported transaction value. The earliest filing StockDrifts holds for Samsung SDS is dated 2024-12-02; the most recent is 2026-07-15. Across these filings the average return since disclosure is +8.37%, 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
2026-08-25	BUY	Market Buy	배순민 Soonmin Bae	Managing Director	100	₩227,000	+7.0%	₩23M ($16K)
2026-07-23	BUY	Market Buy	정영훈 Younghoon Jeong	Managing Director	30	₩218,000	-3.9%	₩6M ($4K)
2026-07-23	BUY	Market Buy	민대홍 Daehong Min	Managing Director	10	₩218,000	-3.9%	₩2M ($1K)
2026-07-23	BUY	기타	정영훈 Younghoon Jeong	Managing Director	56	₩218,000	-3.9%	₩12M ($8K)
2026-07-22	BUY	Market Buy	김민 Kim Min	Managing Director	100	₩196,000	+6.9%	₩19M ($13K)
2026-07-22	BUY	Market Buy	이관희 Kwanhee Lee	Managing Director	100	₩196,000	+6.9%	₩19M ($13K)
2026-07-22	BUY	Market Buy	정영훈 Younghoon Jeong	Managing Director	64	₩196,000	+6.9%	₩12M ($8K)
2026-07-22	BUY	Market Buy	민대홍 Daehong Min	Managing Director	50	₩196,000	+6.9%	₩9M ($6K)
2026-07-20	BUY	Market Buy	정영훈 Younghoon Jeong	Managing Director	100	₩184,300	+0.0%	₩20M ($14K)
2026-07-15	BUY	Market Buy	윤민식 Minsik Yoon	Managing Director	100	₩199,300	+0.0%	₩20M ($14K)
2026-07-15	BUY	Market Buy	김창민 Changmin Kim	Managing Director	200	₩199,300	+0.0%	₩39M ($27K)
2026-07-15	BUY	Market Buy	최규만 Gyuman Choi	Managing Director	200	₩199,300	+0.0%	₩40M ($27K)
2026-07-13	BUY	Market Buy	민대홍 Daehong Min	Managing Director	101	₩190,200	+4.8%	₩19M ($13K)
2026-07-09	BUY	Market Buy	신계영 Shin Gye-young	vice president	111	₩188,300	+5.8%	₩21M ($14K)
2026-07-09	BUY	기타	안대중 Ahn Dae-jung	vice president	57	₩188,300	+0.0%	₩11M ($7K)
2026-07-07	BUY	Market Buy	노광빈 Noh Gwangbin	Managing Director	100	₩205,000	-8.2%	₩21M ($14K)
2026-07-07	BUY	Market Buy	여형민 Hyeongmin Yeo	vice president	500	₩205,000	-8.2%	₩103M ($71K)
2026-07-06	BUY	Market Buy	CHANG YONG MIN	Managing Director	111	₩193,300	-2.6%	₩21M ($15K)
2026-07-03	BUY	PROGRAM	황수영 Sooyoung Hwang	vice president	250	₩195,400	+0.0%	₩49M ($34K)
2026-07-03	BUY	PROGRAM	박일우 Park Ilwoo	Managing Director	250	₩195,400	+0.0%	₩49M ($34K)
2026-07-03	BUY	PROGRAM	김은영 Eunyoung Kim	vice president	200	₩195,400	+0.0%	₩39M ($27K)
2026-07-02	BUY	기타	정우용 Jung Woo-yong	Managing Director	98	₩201,500	-6.5%	₩20M ($14K)
2026-07-02	BUY	PROGRAM	김승진 Seungjin Kim	Managing Director	100	₩201,500	-3.0%	₩20M ($14K)
2026-07-02	BUY	PROGRAM	배순민 Soonmin Bae	Managing Director	100	₩201,500	-3.0%	₩20M ($14K)
2026-07-02	BUY	PROGRAM	홍기영 Kiyoung Hong	Managing Director	120	₩201,500	-3.0%	₩24M ($17K)
2026-07-02	BUY	PROGRAM	노현 noh hyun	Managing Director	101	₩201,500	-3.0%	₩20M ($14K)
2026-07-02	BUY	PROGRAM	김긍환 Geunghwan Kim	Managing Director	100	₩201,500	-3.0%	₩20M ($14K)
2026-07-02	BUY	PROGRAM	문관휘 Moon Gwan-hwi	Managing Director	120	₩201,500	-3.0%	₩24M ($17K)
2026-07-01	BUY	PROGRAM	LEE HOJOON	vice president	318	₩197,400	-1.0%	₩63M ($44K)
2026-07-01	BUY	PROGRAM	이동섭 Lee Dong-seop	Managing Director	100	₩197,400	-1.0%	₩20M ($14K)
2026-07-01	BUY	PROGRAM	김상용 Kim Sang-yong	vice president	520	₩197,400	-1.0%	₩103M ($71K)
2026-07-01	BUY	PROGRAM	홍성천 Seongcheon Hong	Managing Director	160	₩197,400	-1.0%	₩32M ($22K)
2026-07-01	BUY	PROGRAM	김종필 Jongpil Kim	vice president	500	₩197,400	-1.0%	₩99M ($69K)
2026-07-01	BUY	PROGRAM	김현성 Hyunseong Kim	Managing Director	200	₩197,400	-1.0%	₩39M ($27K)
2026-07-01	BUY	PROGRAM	신창민 Shin Chang-min	Managing Director	45	₩197,400	-1.0%	₩9M ($6K)
2026-07-01	BUY	Market Buy	백창현 Baek Changhyun	Managing Director	100	₩197,400	-4.6%	₩20M ($14K)
2026-07-01	BUY	Market Buy	서진우 Jinwoo Seo	Managing Director	50	₩197,400	-4.6%	₩10M ($7K)
2026-07-01	BUY	PROGRAM	김태호 Kim Tae-ho	vice president	520	₩197,400	-1.0%	₩103M ($71K)
2026-06-30	BUY	PROGRAM	신창민 Shin Chang-min	Managing Director	55	₩190,800	+2.4%	₩10M ($7K)
2026-06-30	BUY	PROGRAM	김승기 Seunggi Kim	Managing Director	100	₩190,800	+2.4%	₩19M ($13K)
2026-06-30	BUY	PROGRAM	김정욱 Kim Jeong-wook	vice president	150	₩190,800	+2.4%	₩29M ($20K)
2026-06-30	BUY	PROGRAM	이주평 Joo-pyeong Lee	Managing Director	111	₩190,800	+2.4%	₩21M ($15K)
2026-06-30	BUY	PROGRAM	김은영 Eunyoung Kim	vice president	500	₩190,800	+2.4%	₩95M ($66K)
2026-06-30	BUY	PROGRAM	문신정 Moon Moon-jeong	Managing Director	100	₩190,800	+2.4%	₩19M ($13K)
2026-06-30	BUY	PROGRAM	김범수 Beomsu Kim	vice president	100	₩190,800	+2.4%	₩19M ($13K)
2026-06-30	BUY	Market Buy	박인석 Inseok Park	Managing Director	100	₩190,800	-1.3%	₩19M ($13K)
2026-06-30	BUY	Market Buy	박인석 Inseok Park	Managing Director	100	₩190,800	-1.3%	₩19M ($13K)
2026-06-30	BUY	Market Buy	안대중 Ahn Dae-jung	vice president	31	₩190,800	-1.3%	₩6M ($4K)
2026-06-30	BUY	Market Buy	안대중 Ahn Dae-jung	vice president	100	₩190,800	-1.3%	₩19M ($13K)
2026-06-30	BUY	PROGRAM	LEE HOJOON	vice president	237	₩190,800	+2.4%	₩45M ($31K)

Showing the 50 most recent of 123 filings.

Frequently asked questions

Who has been buying Samsung SDS stock?: 51 distinct insiders have filed 98 disclosed insider purchases in Samsung SDS (018260), most recently on 2026-07-15. 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 Samsung SDS have?: Samsung SDS has 98 buy-side and 7 sell-side disclosures on record, covering ₩26.8B ($18.6M) in total reported value, spanning 2024-12-02 to 2026-07-15.
Do insider buys in Korean stocks predict returns?: Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean regulatory filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.