Who has been buying Nippon Chemi-Con Corporation stock?

23 distinct investors have filed 92 disclosed large-shareholding filings in Nippon Chemi-Con Corporation (6997), most recently on 2026-05-15. 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 Nippon Chemi-Con Corporation have?

Nippon Chemi-Con Corporation has 92 buy-side and 78 sell-side disclosures on record, covering ¥39.5B ($254.5M) in total reported value, spanning 2021-03-22 to 2026-05-15.

Where does StockDrifts get Nippon Chemi-Con Corporation insider data?

From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.

Do insider buys in Japanese stocks predict returns?

Not uniformly. StockDrifts scored 101,000+ Japanese large-shareholding filings on fixed 12-month forward returns and found the predictive power concentrated in specific filer types and filing patterns rather than spread evenly across all disclosures.

Nippon Chemi-Con Corporation 6997

Company

日本ケミコン株式会社Nippon Chemi-Con Corporation

Investors

Buys

Total Value

¥39.5B ($254.5M)

Avg Return

+60.45%

Last Filing

2026-05-15

Nippon Chemi-Con Corporation (6997) has 92 disclosed large-shareholding filings and 78 disclosed disposals on record, filed by 23 distinct investors. Together those filings cover ¥39.5B ($254.5M) in reported transaction value. The earliest filing StockDrifts holds for Nippon Chemi-Con Corporation is dated 2021-03-22; the most recent is 2026-05-15. All of it is parsed from EDINET large-shareholding (5%+) reports, the official disclosure system operated by the Financial Services Agency (Japan). Across these filings the average return since disclosure is +60.45%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

Date	Type	Source	Insider	Purpose	Shares	Price at filing	Return	Value
2026-08-07	BUY	unknown	野村アセットマネジメント株式会社	other	986.3K	¥3,160	+0.2%	¥3.1B ($20.1M)
2026-08-07	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	108.8K	¥3,160	-0.2%	¥372M ($2.4M)
2026-08-07	SELL	unknown	野村證券株式会社	other	172.5K	¥3,160	-0.2%	¥1.4B ($9.1M)
2026-07-23	SELL	unknown	野村アセットマネジメント株式会社	other	967.9K	¥3,290	+3.8%	¥18M ($117K)
2026-07-23	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	222.4K	¥3,290	+3.8%	¥1.1B ($7.4M)
2026-07-23	SELL	unknown	野村證券株式会社	other	609.0K	¥3,290	+3.8%	¥308M ($2.0M)
2026-07-07	BUY	unknown	野村アセットマネジメント株式会社	other	972.9K	¥4,250	-16.5%	¥4.1B ($26.7M)
2026-07-07	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	571.1K	¥4,250	+16.5%	¥432M ($2.8M)
2026-07-07	BUY	Market Buy	野村證券株式会社	other	701.1K	¥4,250	-16.5%	¥257M ($1.7M)
2026-07-03	SELL	unknown	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	unknown	0	¥5,570	+44.0%	¥36.4B ($235.1M)
2026-07-03	BUY	subscription	株式会社日本政策投資銀行 Development Bank of Japan Inc.	passive	2.1M	¥5,570	-44.0%	¥12.0B ($77.2M)
2026-06-22	BUY	unknown	野村アセットマネジメント株式会社	other	874.1K	¥5,810	-45.6%	¥5.1B ($32.8M)
2026-06-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	606.2K	¥5,810	-45.6%	¥3.5B ($22.7M)
2026-06-22	BUY	unknown	野村證券株式会社	other	575.5K	¥5,810	-45.6%	¥3.3B ($21.6M)
2026-06-18	SELL	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	8.5M	¥5,530	+42.9%	¥1.8B ($11.6M)
2026-06-15	SELL	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	9.0M	¥4,790	+18.2%	¥1.9B ($11.9M)
2026-06-10	SELL	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	9.5M	¥4,245	+7.7%	¥1.2B ($7.7M)
2026-06-08	SELL	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	9.8M	¥4,535	-22.8%	¥1.6B ($10.2M)
2026-06-05	BUY	Market Buy	野村證券株式会社	other	165.2K	¥4,980	+11.8%	¥455M ($2.9M)
2026-06-05	SELL	unknown	野村アセットマネジメント株式会社	other	616.8K	¥4,980	-11.8%	¥1.3B ($8.2M)
2026-06-05	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-159.3K	¥4,980	-11.8%	¥4.0B ($25.7M)
2026-06-04	BUY	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	10.3M	¥4,945	+12.6%	¥2.0B ($13.0M)
2026-06-04	BUY	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	10.3M	¥4,945	+12.6%	¥2.0B ($13.0M)
2026-06-04	SELL	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	10.3M	¥4,945	-12.6%	¥2.0B ($13.0M)
2026-06-02	BUY	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	10.8M	¥4,785	+16.8%	¥1.9B ($12.0M)
2026-06-02	SELL	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	10.8M	¥4,785	-16.8%	¥1.9B ($12.0M)
2026-05-27	BUY	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	11.3M	¥3,865	+46.7%	¥1.3B ($8.3M)
2026-05-27	SELL	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	11.3M	¥3,865	-46.7%	¥1.3B ($8.3M)
2026-05-15	BUY	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	11.8M	¥2,996	+66.2%	¥46M ($298K)
2026-05-15	BUY	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	11.8M	¥2,996	+66.2%	¥46M ($298K)
2026-05-12	BUY	acquisition	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	activist	11.8M	¥3,200	+55.6%	¥37.6B ($242.8M)
2026-05-12	BUY	Market Buy	野村アセットマネジメント株式会社	other	873.4K	¥3,200	+55.6%	¥40M ($255K)
2026-05-12	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	641.7K	¥3,200	+55.6%	¥577M ($3.7M)
2026-05-12	BUY	Market Buy	アセットマネジメントOne株式会社	other	472.6K	¥3,200	+55.6%	¥40M ($255K)
2026-05-12	SELL	unknown	みずほ証券株式会社	other	16.7K	¥3,200	-55.6%	¥4.3B ($27.8M)
2026-05-12	SELL	unknown	野村證券株式会社	other	74.3K	¥3,200	-55.6%	¥32M ($204K)
2026-04-30	SELL	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	activist	771.5K	¥2,660	-64.7%	¥2.7B ($17.2M)
2026-04-22	BUY	unknown	アセットマネジメントOne株式会社	other	459.0K	¥2,450	+32.0%	¥1.1B ($7.3M)
2026-04-22	SELL	unknown	みずほ証券株式会社	other	1.4M	¥2,450	-32.0%	¥878M ($5.7M)
2026-04-22	BUY	unknown	野村アセットマネジメント株式会社	other	860.9K	¥2,450	+32.0%	¥2.1B ($13.6M)
2026-04-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	461.7K	¥2,450	+32.0%	¥1.1B ($7.3M)
2026-04-22	BUY	unknown	野村證券株式会社	other	85.0K	¥2,450	+32.0%	¥208M ($1.3M)
2026-04-15	BUY	unknown	アセットマネジメントOne株式会社	other	458.8K	¥2,055	+49.9%	¥943M ($6.1M)
2026-04-15	SELL	unknown	みずほ証券株式会社	other	1.7M	¥2,055	-49.9%	¥635M ($4.1M)
2026-04-08	BUY	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	activist	1.8M	¥1,668	+82.8%	¥3.0B ($19.1M)
2026-04-08	BUY	unknown	アセットマネジメントOne株式会社	other	458.7K	¥1,668	+82.8%	¥765M ($4.9M)
2026-04-08	BUY	unknown	みずほ証券株式会社	other	2.0M	¥1,668	+82.8%	¥3.4B ($21.8M)
2026-01-23	SELL	Market Buy	志野文哉	passive	46.3K	¥1,570	-51.8%	¥110M ($712K)
2026-01-23	BUY	Market Buy	ウィル・フィールド・キャピタル・ピーティーイー・エルティーディー WILL FIELD CAPITAL PTE.LTD.	passive	1.2M	¥1,570	-51.8%	¥2.8B ($18.0M)
2026-01-20	SELL	Market Buy	志野文哉	passive	130.9K	¥1,560	-52.8%	¥312M ($2.0M)

Showing the 50 most recent of 200 filings.

Frequently asked questions

Who has been buying Nippon Chemi-Con Corporation stock?: 23 distinct investors have filed 92 disclosed large-shareholding filings in Nippon Chemi-Con Corporation (6997), most recently on 2026-05-15. 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 Nippon Chemi-Con Corporation have?: Nippon Chemi-Con Corporation has 92 buy-side and 78 sell-side disclosures on record, covering ¥39.5B ($254.5M) in total reported value, spanning 2021-03-22 to 2026-05-15.
Where does StockDrifts get Nippon Chemi-Con Corporation insider data?: From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.
Do insider buys in Japanese stocks predict returns?: Not uniformly. StockDrifts scored 101,000+ Japanese large-shareholding filings on fixed 12-month forward returns and found the predictive power concentrated in specific filer types and filing patterns rather than spread evenly across all disclosures.

Source filings

Every trade listed above is disclosed in EDINET large-shareholding (5%+) reports, filed with the Financial Services Agency (Japan). View the original EDINET filings for Nippon Chemi-Con Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.