Who has been buying Nano new material stock?

4 distinct insiders have filed 4 disclosed insider purchases in Nano new material (121600), most recently on 2026-06-08. 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 Nano new material have?

Nano new material has 4 buy-side and 5 sell-side disclosures on record, covering ₩1.9B ($1.3M) in total reported value, spanning 2023-06-05 to 2026-06-08.

Where does StockDrifts get Nano new material 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.

Nano new material 121600

Company

나노신소재Nano new material

Insiders

Buys

Total Value

₩1.9B ($1.3M)

Avg Return

+18.52%

Last Filing

2026-06-08

Nano new material (121600) has 4 disclosed insider purchases and 5 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩1.9B ($1.3M) in reported transaction value. The earliest filing StockDrifts holds for Nano new material is dated 2023-06-05; the most recent is 2026-06-08. 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 +18.52%, 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
2026-08-04	BUY	Market Buy	송세호 Song Se-ho	Managing Director	7.2K	₩44,000	+0.2%	₩277M ($192K)
2026-08-03	BUY	자사주상여금	김세종 Sejong Kim	Managing Director	1.0K	₩40,400	+9.2%	₩40M ($28K)
2026-08-03	BUY	Market Buy	송세호 Song Se-ho	Managing Director	1.6K	₩40,400	+9.2%	₩56M ($39K)
2026-07-31	BUY	Market Buy	송세호 Song Se-ho	Managing Director	2.5K	₩39,950	+10.4%	₩89M ($62K)
2026-06-08	BUY	주식매수선택권	김상중 Kim Sang-joong	Managing Director	1.5K	₩53,500	+17.8%	₩80M ($56K)
2026-05-22	SELL	증여	박장우 Park Jangwoo	CEO	-736	₩72,600	+2.9%	₩53M ($37K)
2026-05-19	BUY	Market Buy	박장우 Park Jangwoo	CEO	100	₩67,900	+3.8%	₩7M ($5K)
2026-05-19	BUY	Market Buy	박장우 Park Jangwoo	CEO	100	₩67,900	+3.8%	₩7M ($5K)
2026-05-19	BUY	Market Buy	박장우 Park Jangwoo	CEO	608	₩67,900	+3.8%	₩41M ($29K)
2026-05-19	BUY	Market Buy	박장우 Park Jangwoo	CEO	92	₩67,900	+3.8%	₩6M ($4K)
2026-04-23	SELL	Market Sell	김상중 Kim Sang-joong	Managing Director	-1.7K	₩81,000	-2.2%	₩138M ($96K)
2026-04-06	BUY	주식매수선택권	김상중 Kim Sang-joong	Managing Director	1.5K	₩63,700	+30.8%	₩96M ($66K)
2026-03-21	SELL	계약기간만료	박장우 Park Jangwoo	CEO	-113.8K	₩59,500	-14.1%	₩6.8B ($4.7M)
2026-03-21	SELL	계약기간만료	박장우 Park Jangwoo	CEO	-60.6K	₩59,500	-14.1%	₩3.6B ($2.5M)
2026-03-21	SELL	계약기간만료	박장우 Park Jangwoo	CEO	-183.6K	₩59,500	-14.1%	₩10.9B ($7.6M)
2026-01-01	BUY	신규선임	김상중 Kim Sang-joong	Managing Director	3.3K	₩47,750	+45.8%	₩158M ($110K)
2025-04-15	BUY	주식매수선택권	송세호 Song Se-ho	Managing Director	1.8K	₩55,100	+26.3%	₩99M ($69K)
2024-11-21	BUY	행사가액조정	박장우 Park Jangwoo	CEO	4.5K	-	-	-
2024-11-21	BUY	행사가액조정	박장우 Park Jangwoo	CEO	13.7K	-	-	-
2024-11-21	BUY	행사가액조정	박장우 Park Jangwoo	CEO	8.5K	-	-	-
2024-10-02	BUY	증여취소	박장우 Park Jangwoo	CEO	6.4K	₩93,100	-25.2%	₩594M ($412K)
2024-09-30	SELL	증여	박장우 Park Jangwoo	CEO	-6.8K	₩94,100	+26.0%	₩640M ($444K)
2024-07-03	SELL	Market Sell	김상희 Sanghee Kim	Managing Director	-5.0K	₩119,400	+41.7%	₩597M ($415K)
2024-06-27	BUY	자사주상여금	김상희 Sanghee Kim	Managing Director	1.5K	₩121,000	-42.5%	₩182M ($126K)
2024-06-20	BUY	증여취소	박장우 Park Jangwoo	CEO	242	₩122,400	-43.1%	₩30M ($21K)
2024-05-17	SELL	Market Sell	송세호 Song Se-ho	Managing Director	-7.0K	₩110,400	+37.0%	₩773M ($537K)
2024-05-16	SELL	Market Sell	송세호 Song Se-ho	Managing Director	-2.8K	₩110,900	+37.2%	₩314M ($218K)
2024-05-14	SELL	Market Sell	송세호 Song Se-ho	Managing Director	-132	₩111,600	+37.6%	₩15M ($10K)
2024-04-22	BUY	행사가액조정	박장우 Park Jangwoo	CEO	41.4K	₩118,200	-41.1%	₩4.9B ($3.4M)
2024-04-22	BUY	행사가액조정	박장우 Park Jangwoo	CEO	13.7K	₩118,200	-41.1%	₩1.6B ($1.1M)
2024-04-22	BUY	행사가액조정	박장우 Park Jangwoo	CEO	25.7K	₩118,200	-41.1%	₩3.0B ($2.1M)
2024-04-08	BUY	주식매수선택권	송세호 Song Se-ho	Managing Director	13.2K	₩121,000	-42.5%	₩1.6B ($1.1M)
2024-03-11	BUY	자사주상여금	이광민 Gwangmin Lee	Managing Director	743	₩134,100	-48.1%	₩100M ($69K)
2023-09-19	BUY	기타	박장우 Park Jangwoo	CEO	42.4K	₩153,800	-54.8%	₩6.5B ($4.5M)
2023-09-19	BUY	기타	박장우 Park Jangwoo	CEO	128.5K	₩153,800	-54.8%	₩19.8B ($13.7M)
2023-09-19	BUY	기타	박장우 Park Jangwoo	CEO	79.7K	₩153,800	-54.8%	₩12.3B ($8.5M)
2023-06-05	BUY	신규선임	신정식 Shin Jeong-sik	vice president	28	₩143,100	-51.4%	₩4M ($3K)

Frequently asked questions

Who has been buying Nano new material stock?: 4 distinct insiders have filed 4 disclosed insider purchases in Nano new material (121600), most recently on 2026-06-08. 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 Nano new material have?: Nano new material has 4 buy-side and 5 sell-side disclosures on record, covering ₩1.9B ($1.3M) in total reported value, spanning 2023-06-05 to 2026-06-08.
Where does StockDrifts get Nano new material 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 Nano new material. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.