Who has been buying Nanochemtech stock?

2 distinct insiders have filed 4 disclosed insider purchases in Nanochemtech (091970), most recently on 2026-06-17. 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 Nanochemtech have?

Nanochemtech has 4 buy-side and 0 sell-side disclosures on record, covering ₩307M ($213K) in total reported value, spanning 2024-07-29 to 2026-06-17.

Where does StockDrifts get Nanochemtech insider data?

From DART D001/D002 insider disclosures — the official filing system run by the Financial Supervisory Service (Korea). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from DART.

Do insider buys in Korean stocks predict returns?

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

Nanochemtech 091970

Company

나노캠텍Nanochemtech

Insiders

Buys

Total Value

₩307M ($213K)

Avg Return

+28.27%

Last Filing

2026-06-17

Nanochemtech (091970) has 4 disclosed insider purchases and 0 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩307M ($213K) in reported transaction value. The earliest filing StockDrifts holds for Nanochemtech is dated 2024-07-29; the most recent is 2026-06-17. All of it is parsed from DART D001/D002 insider disclosures, the official disclosure system operated by the Financial Supervisory Service (Korea). Across these filings the average return since disclosure is +28.27%, 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
2026-06-17	BUY	Market Buy	김태수 Kim Tae-soo	moving	3.1K	₩3,225	+10.7%	₩10M ($7K)
2026-06-12	SELL	전환등	신해용 Shin Hae-yong	Internal director	-17.1K	₩3,025	-18.0%	₩52M ($36K)
2026-05-05	SELL	주식병합	트리니티에쿼티 Trinity Equity	-	-6.9M	₩3,785	-12.7%	₩25.9B ($18.0M)
2026-05-05	SELL	행사가액조정	트리니티에쿼티 Trinity Equity	-	-3.8M	₩3,785	-12.7%	₩14.5B ($10.1M)
2026-05-05	SELL	주식병합	이상규 Lee Sang-gyu	Chairman	-1.9M	₩3,785	-12.7%	₩7.2B ($5.0M)
2026-05-05	SELL	주식병합	디비인베스트먼트 DB Investment	-	-411.7K	₩3,785	-12.7%	₩1.6B ($1.1M)
2026-05-05	SELL	행사가액조정	신해용 Shin Hae-yong	Internal director	-68.4K	₩3,785	-12.7%	₩259M ($180K)
2026-05-05	SELL	주식병합	신해용 Shin Hae-yong	Internal director	-91.1K	₩3,785	-12.7%	₩345M ($240K)
2026-05-05	SELL	주식병합	소병적 petit pathological	Managing Director	-41.0K	₩3,785	-12.7%	₩155M ($108K)
2026-03-05	BUY	Market Buy	디비인베스트먼트 DB Investment	-	31.2K	₩480	+50.0%	₩15M ($10K)
2026-03-03	BUY	Market Buy	디비인베스트먼트 DB Investment	-	53.8K	₩555	+29.7%	₩30M ($21K)
2026-02-27	BUY	Market Buy	디비인베스트먼트 DB Investment	-	429.6K	₩587	+22.7%	₩252M ($175K)
2025-11-04	SELL	전환등	소병적 petit pathological	Managing Director	-51.3K	₩847	+15.0%	₩43M ($30K)
2025-11-04	BUY	전환사채의권리행사	소병적 petit pathological	Managing Director	51.3K	₩847	-15.0%	₩43M ($30K)
2024-07-29	BUY	CB인수	오희갑 Oh Hee-gap	moving	51.3K	₩571	+26.1%	₩29M ($20K)
2024-07-29	BUY	CB인수	신해용 Shin Hae-yong	Internal director	85.5K	₩571	+26.1%	₩49M ($34K)
2024-07-29	BUY	CB인수	소병적 petit pathological	Managing Director	51.3K	₩571	+26.1%	₩29M ($20K)
2024-07-29	BUY	CB인수	트리니티에쿼티 Trinity Equity	-	4.8M	₩571	+26.1%	₩2.7B ($1.9M)

Frequently asked questions

Who has been buying Nanochemtech stock?: 2 distinct insiders have filed 4 disclosed insider purchases in Nanochemtech (091970), most recently on 2026-06-17. 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 Nanochemtech have?: Nanochemtech has 4 buy-side and 0 sell-side disclosures on record, covering ₩307M ($213K) in total reported value, spanning 2024-07-29 to 2026-06-17.
Where does StockDrifts get Nanochemtech insider data?: From DART D001/D002 insider disclosures — the official filing system run by the Financial Supervisory Service (Korea). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from DART.
Do insider buys in Korean stocks predict returns?: Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean DART filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

Source filings

Every trade listed above is disclosed in DART D001/D002 insider disclosures, filed with the Financial Supervisory Service (Korea). View the original DART filings for Nanochemtech. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.