Who has been buying Sajo Dongawon stock?

2 distinct insiders have filed 8 disclosed insider purchases in Sajo Dongawon (008040), most recently on 2025-09-30. 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 Sajo Dongawon have?

Sajo Dongawon has 8 buy-side and 3 sell-side disclosures on record, covering ₩34M ($23K) in total reported value, spanning 2024-02-23 to 2025-09-30.

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.

Sajo Dongawon 008040

Company

사조동아원Sajo Dongawon

Insiders

Buys

Total Value

₩34M ($23K)

Avg Return

+17.00%

Last Filing

2025-09-30

Sajo Dongawon (008040) has 8 disclosed insider purchases and 3 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩34M ($23K) in reported transaction value. The earliest filing StockDrifts holds for Sajo Dongawon is dated 2024-02-23; the most recent is 2025-09-30. Across these filings the average return since disclosure is +17.00%, 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
2026-08-13	SELL	주식병합	사조씨푸드 Sajo Seafood	-	-33.1M	₩6,540	-33.0%	₩216.3B ($150.2M)
2026-08-13	SELL	주식병합	사조대림 Sajo Daerim	-	-33.1M	₩6,540	-33.0%	₩216.2B ($150.1M)
2025-09-30	SELL	Market Sell	장대한 magnificent	Managing Director	-9.4K	₩1,223	+7.0%	₩12M ($8K)
2025-09-30	SELL	Market Sell	장대한 magnificent	Managing Director	-663	₩1,223	+7.0%	₩811K ($563)
2025-09-30	SELL	Market Sell	장대한 magnificent	Managing Director	-2.9K	₩1,223	+7.0%	₩4M ($2K)
2024-12-19	SELL	시간외매매	사조대림 Sajo Daerim	-	-1.0M	₩993	-14.6%	₩993M ($690K)
2024-12-19	BUY	시간외매매	사조씨푸드 Sajo Seafood	-	1.0M	₩993	+14.6%	₩993M ($690K)
2024-02-29	BUY	Market Buy	정윤선 Jeong Yun-seon	Research Director	671	₩948	+20.0%	₩636K ($442)
2024-02-28	BUY	Market Buy	장대한 magnificent	Managing Director	1.1K	₩942	+20.8%	₩1M ($720)
2024-02-28	BUY	Market Buy	장대한 magnificent	Managing Director	885	₩942	+20.8%	₩834K ($579)
2024-02-28	BUY	Market Buy	장대한 magnificent	Managing Director	10.0K	₩942	+20.8%	₩9M ($7K)
2024-02-28	BUY	Market Buy	장대한 magnificent	Managing Director	1.0K	₩942	+20.8%	₩956K ($664)
2024-02-23	BUY	Market Buy	정윤선 Jeong Yun-seon	Research Director	2.1K	₩941	+20.9%	₩2M ($1K)
2024-02-23	BUY	Market Buy	정윤선 Jeong Yun-seon	Research Director	2.3K	₩941	+20.9%	₩2M ($2K)
2024-02-23	BUY	Market Buy	정윤선 Jeong Yun-seon	Research Director	900	₩941	+20.9%	₩847K ($588)

Frequently asked questions

Who has been buying Sajo Dongawon stock?: 2 distinct insiders have filed 8 disclosed insider purchases in Sajo Dongawon (008040), most recently on 2025-09-30. 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 Sajo Dongawon have?: Sajo Dongawon has 8 buy-side and 3 sell-side disclosures on record, covering ₩34M ($23K) in total reported value, spanning 2024-02-23 to 2025-09-30.
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.