Who has been buying Neptune stock?

1 distinct insiders have filed 0 disclosed insider purchases in Neptune (217270), most recently on 2026-04-01. 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 Neptune have?

Neptune has 0 buy-side and 1 sell-side disclosures on record, covering ₩170.3B ($118.2M) in total reported value, spanning 2023-03-29 to 2026-04-01.

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.

Neptune 217270

Company

넵튠Neptune

Insiders

Buys

Total Value

₩170.3B ($118.2M)

Avg Return

+47.46%

Last Filing

2026-04-01

Neptune (217270) has 0 disclosed insider purchases and 1 disclosed disposals on record, filed by 1 distinct insiders. Together those filings cover ₩170.3B ($118.2M) in reported transaction value. The earliest filing StockDrifts holds for Neptune is dated 2023-03-29; the most recent is 2026-04-01. Across these filings the average return since disclosure is +47.46%, 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
2026-04-01	BUY	신규선임	허산 Heosan	vice president	427.2K	₩4,135	-3.3%	₩1.8B ($1.2M)
2026-04-01	BUY	자사주상여금	김창주 Changju Kim	vice president	3.0K	₩4,135	-3.3%	₩12M ($9K)
2025-08-11	BUY	시간외매매	크래프톤 Krafton	-	1.2M	₩7,020	-30.7%	₩8.4B ($5.8M)
2025-08-11	SELL	시간외매매	강율빈 Kang Yulbin	CEO	-200.0K	₩7,020	+30.7%	₩1.4B ($975K)
2025-07-09	SELL	Market Sell	카카오게임즈 Kakao Games	-	-18.4M	₩9,260	+47.5%	₩170.3B ($118.2M)
2025-07-09	BUY	신규보고	크래프톤 Krafton	-	1.5M	₩9,260	-47.5%	₩13.7B ($9.5M)
2025-07-09	BUY	신규주요주주	크래프톤 Krafton	-	18.4M	₩9,260	-47.5%	₩170.3B ($118.2M)
2025-06-30	BUY	신규선임	최치웅 Chiwoong Choi	vice president	919.1K	₩8,940	-45.6%	₩8.2B ($5.7M)
2025-06-30	BUY	신규선임	권승현 Seunghyun Kwon	vice president	103.0K	₩8,940	-45.6%	₩921M ($639K)
2025-06-30	BUY	신규선임	김창주 Changju Kim	vice president	110.0K	₩8,940	-45.6%	₩983M ($683K)
2023-03-29	BUY	신규선임	강율빈 Kang Yulbin	CEO	1.5M	₩10,090	-51.8%	₩14.8B ($10.3M)

Frequently asked questions

Who has been buying Neptune stock?: 1 distinct insiders have filed 0 disclosed insider purchases in Neptune (217270), most recently on 2026-04-01. 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 Neptune have?: Neptune has 0 buy-side and 1 sell-side disclosures on record, covering ₩170.3B ($118.2M) in total reported value, spanning 2023-03-29 to 2026-04-01.
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.