Who has been buying Soulbrain Holdings stock?

1 distinct insiders have filed 2 disclosed insider purchases in Soulbrain Holdings (036830), most recently on 2026-07-08. 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 Soulbrain Holdings have?

Soulbrain Holdings has 2 buy-side and 0 sell-side disclosures on record, covering ₩36M ($25K) in total reported value, spanning 2025-07-01 to 2026-07-08.

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.

Soulbrain Holdings 036830

Company

솔브레인홀딩스Soulbrain Holdings

Insiders

Buys

Total Value

₩36M ($25K)

Avg Return

-9.96%

Last Filing

2026-07-08

Soulbrain Holdings (036830) has 2 disclosed insider purchases and 0 disclosed disposals on record, filed by 1 distinct insiders. Together those filings cover ₩36M ($25K) in reported transaction value. The earliest filing StockDrifts holds for Soulbrain Holdings is dated 2025-07-01; the most recent is 2026-07-08. Across these filings the average return since disclosure is -9.96%, 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
2026-09-03	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	19.8K	₩41,500	+3.9%	₩883M ($614K)
2026-09-02	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	16.7K	₩42,800	+0.7%	₩722M ($501K)
2026-09-01	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	15.0K	₩44,000	+0.0%	₩659M ($458K)
2026-08-31	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	11.2K	₩43,700	+0.7%	₩481M ($334K)
2026-08-28	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	11.9K	₩43,750	+0.6%	₩493M ($342K)
2026-08-27	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	22.0K	₩44,000	+0.0%	₩930M ($646K)
2026-08-26	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	6.7K	₩42,350	+3.9%	₩278M ($193K)
2026-08-25	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	12.5K	₩43,350	+1.5%	₩470M ($327K)
2026-08-24	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	15.0K	₩44,600	-2.8%	₩594M ($413K)
2026-08-21	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	15.0K	₩37,950	+14.2%	₩588M ($408K)
2026-08-20	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	15.0K	₩39,000	+11.2%	₩616M ($428K)
2026-08-19	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	15.1K	₩38,600	+12.3%	₩604M ($420K)
2026-08-18	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	20.0K	₩39,150	+10.7%	₩846M ($587K)
2026-08-14	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	7.6K	₩39,150	+10.7%	₩311M ($216K)
2026-08-13	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	27.2K	-	-	-
2026-08-12	BUY	Market Buy	정문주 Jeong Moon-ju	Co-CEO	11.9K	-	-	-
2026-07-08	BUY	Market Buy	정현석 Jeong Hyun-seok	Co-CEO	344	₩35,650	-10.0%	₩12M ($9K)
2026-07-07	BUY	Market Buy	정현석 Jeong Hyun-seok	Co-CEO	656	₩35,650	-10.0%	₩23M ($16K)
2025-07-01	BUY	신규선임	도승철 Do Seung-cheol	Managing Director	500	₩40,850	+26.6%	₩20M ($14K)

Frequently asked questions

Who has been buying Soulbrain Holdings stock?: 1 distinct insiders have filed 2 disclosed insider purchases in Soulbrain Holdings (036830), most recently on 2026-07-08. 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 Soulbrain Holdings have?: Soulbrain Holdings has 2 buy-side and 0 sell-side disclosures on record, covering ₩36M ($25K) in total reported value, spanning 2025-07-01 to 2026-07-08.
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.