Who has been buying OSP stock?

1 distinct insiders have filed 1 disclosed insider purchases in OSP (368970), 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 OSP have?

OSP has 1 buy-side and 0 sell-side disclosures on record, covering ₩28M ($19K) in total reported value, spanning 2026-05-06 to 2026-07-13.

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.

OSP 368970

Company

오에스피OSP

Insiders

Buys

Total Value

₩28M ($19K)

Avg Return

+1.99%

Last Filing

2026-07-13

OSP (368970) has 1 disclosed insider purchases and 0 disclosed disposals on record, filed by 1 distinct insiders. Together those filings cover ₩28M ($19K) in reported transaction value. The earliest filing StockDrifts holds for OSP is dated 2026-05-06; the most recent is 2026-07-13. Across these filings the average return since disclosure is +1.99%, 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
2026-09-22	BUY	Market Buy	와이투케이파트너스 Y2K Partners	-	66.3K	₩2,810	-1.3%	₩185M ($128K)
2026-09-21	BUY	Market Buy	와이투케이파트너스 Y2K Partners	-	41.9K	₩2,750	+0.9%	₩112M ($78K)
2026-09-09	BUY	Market Buy	와이투케이파트너스 Y2K Partners	-	8.8K	₩2,580	+4.8%	₩23M ($16K)
2026-08-28	BUY	Market Buy	와이투케이파트너스 Y2K Partners	-	20.0K	₩2,395	+6.0%	₩47M ($33K)
2026-08-27	BUY	Market Buy	와이투케이파트너스 Y2K Partners	-	48	₩2,375	+7.0%	₩113K ($79)
2026-07-15	BUY	Market Buy	와이투케이파트너스 Y2K Partners	-	10.5K	₩2,215	-0.2%	₩22M ($15K)
2026-07-14	BUY	제3자배정유상증자	와이투케이파트너스 Y2K Partners	-	63.7K	₩2,230	-0.9%	₩100M ($69K)
2026-07-14	BUY	제3자배정유상증자	와이투케이파트너스 Y2K Partners	-	1.4M	₩2,230	-0.9%	₩2.2B ($1.5M)
2026-07-14	BUY	Market Buy	와이투케이파트너스 Y2K Partners	-	120	₩2,230	-0.9%	₩272K ($189)
2026-07-13	BUY	Market Buy	와이투케이파트너스 Y2K Partners	-	18.1K	₩2,265	-2.4%	₩44M ($31K)
2026-07-13	BUY	Market Buy	강재구 Kang Jae-gu	CEO	11.0K	₩2,265	+2.0%	₩28M ($19K)
2026-07-10	BUY	Market Buy	와이투케이파트너스 Y2K Partners	-	141.6K	₩2,265	-2.4%	₩330M ($229K)
2026-07-09	BUY	Market Buy	와이투케이파트너스 Y2K Partners	-	6.2K	₩2,220	-0.5%	₩15M ($11K)
2026-07-08	BUY	제3자배정유상증자	우진비앤지 Woojin B&G	-	612.7K	₩2,485	-10.7%	₩1.5B ($1.1M)
2026-07-08	BUY	Market Buy	와이투케이파트너스 Y2K Partners	-	23.4K	₩2,485	-11.1%	₩55M ($38K)
2026-07-08	BUY	제3자배정유상증자	와이투케이파트너스 Y2K Partners	-	537.6K	₩2,485	-11.1%	₩878M ($610K)
2026-07-07	BUY	Market Buy	와이투케이파트너스 Y2K Partners	-	34.4K	₩2,485	-11.1%	₩72M ($50K)
2026-06-22	BUY	무상신주취득	이상윤 Lee Sang-yoon	Managing Director	9.6K	₩1,825	+26.6%	₩18M ($12K)
2026-06-22	BUY	무상신주취득	우진비앤지 Woojin B&G	-	995.6K	₩1,825	+21.6%	₩1.8B ($1.3M)
2026-05-06	SELL	주식병합	이상윤 Lee Sang-yoon	Managing Director	-19.2K	₩1,925	+0.0%	₩37M ($26K)

Frequently asked questions

Who has been buying OSP stock?: 1 distinct insiders have filed 1 disclosed insider purchases in OSP (368970), 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 OSP have?: OSP has 1 buy-side and 0 sell-side disclosures on record, covering ₩28M ($19K) in total reported value, spanning 2026-05-06 to 2026-07-13.
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.