Who has been buying New Constructor's Network Co., Ltd. stock?

8 distinct investors have filed 5 disclosed large-shareholding filings in New Constructor's Network Co., Ltd. (7057), most recently on 2026-04-17. 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 New Constructor's Network Co., Ltd. have?

New Constructor's Network Co., Ltd. has 5 buy-side and 11 sell-side disclosures on record, covering ¥344M ($2.2M) in total reported value, spanning 2021-07-16 to 2026-04-17.

Where does StockDrifts get New Constructor's Network Co., Ltd. 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.

New Constructor's Network Co., Ltd. 7057

Company

株式会社エヌ・シー・エヌNew Constructor's Network Co., Ltd.

Investors

Buys

Total Value

¥344M ($2.2M)

Avg Return

-12.76%

Last Filing

2026-04-17

New Constructor's Network Co., Ltd. (7057) has 5 disclosed large-shareholding filings and 11 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥344M ($2.2M) in reported transaction value. The earliest filing StockDrifts holds for New Constructor's Network Co., Ltd. is dated 2021-07-16; the most recent is 2026-04-17. 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 -12.76%, 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
2026-06-12	BUY	unknown	杉山恒夫	strategic	110.0K	¥893	+2.5%	¥98M ($634K)
2026-06-12	BUY	unknown	藤井義久	activist	95.0K	¥893	+2.5%	¥85M ($547K)
2026-06-12	BUY	unknown	田杉総行株式会社	activist	1.1M	¥893	+2.5%	¥962M ($6.2M)
2026-06-12	BUY	unknown	田鎖郁夫	activist	385.0K	¥893	+2.5%	¥344M ($2.2M)
2026-06-09	BUY	unknown	杉山恒夫	strategic	110.0K	¥885	+3.4%	¥97M ($628K)
2026-06-09	BUY	unknown	藤井義久	activist	95.0K	¥885	+3.4%	¥84M ($542K)
2026-06-09	BUY	unknown	田杉総行株式会社	activist	1.1M	¥885	+3.4%	¥953M ($6.1M)
2026-06-09	BUY	unknown	田鎖郁夫	activist	385.0K	¥885	+3.4%	¥341M ($2.2M)
2026-05-29	SELL	unknown	杉山恒夫	strategic	110.0K	¥897	-0.3%	¥96M ($621K)
2026-05-29	SELL	unknown	藤井義久	activist	95.0K	¥897	-0.3%	¥99M ($638K)
2026-05-29	BUY	Market Buy	田杉総行株式会社	activist	1.1M	¥897	+0.3%	¥373M ($2.4M)
2026-05-29	SELL	unknown	田鎖郁夫	activist	385.0K	¥897	-0.3%	¥178M ($1.1M)
2026-05-29	SELL	unknown	杉山恒夫	strategic	110.0K	¥897	-0.3%	¥96M ($621K)
2026-05-29	SELL	unknown	藤井義久	activist	95.0K	¥897	-0.3%	¥99M ($638K)
2026-05-29	BUY	Market Buy	田杉総行株式会社	activist	1.1M	¥897	+0.3%	¥373M ($2.4M)
2026-05-29	SELL	unknown	田鎖郁夫	activist	385.0K	¥897	-0.3%	¥178M ($1.1M)
2026-05-29	SELL	unknown	杉山恒夫	strategic	110.0K	¥897	-0.3%	¥96M ($621K)
2026-05-29	SELL	unknown	藤井義久	activist	95.0K	¥897	-0.3%	¥99M ($638K)
2026-05-29	BUY	Market Buy	田杉総行株式会社	activist	1.1M	¥897	+0.3%	¥373M ($2.4M)
2026-05-29	SELL	unknown	田鎖郁夫	activist	385.0K	¥897	-0.3%	¥178M ($1.1M)
2026-04-17	SELL	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	0	¥963	+3.7%	¥269M ($1.7M)
2025-09-24	SELL	Market Buy	杉山恒夫 Tsuneo Sugiyama	strategic	217.0K	¥1,023	+6.1%	¥329K ($2K)
2025-09-24	BUY	Market Buy	藤井義久 Yoshihisa Fujii	activist	204.8K	¥1,023	-6.1%	¥3M ($17K)
2025-09-24	SELL	Market Buy	有限会社田杉総行 Tasugi Soyuki Co., Ltd.	activist	660.0K	¥1,023	+6.1%	¥987K ($6K)
2025-09-24	BUY	unknown	藤井義久 Yoshihisa Fujii	activist	204.8K	¥1,023	-6.1%	¥3M ($17K)
2025-09-24	SELL	unknown	有限会社田杉総行 Tasugi Soyuki Co., Ltd.	activist	660.0K	¥1,023	+6.1%	¥987K ($6K)
2025-09-24	SELL	unknown	田鎖郁夫 Ikuo Tagashiri	activist	582.0K	¥1,023	+6.1%	¥658K ($4K)
2025-09-24	SELL	Market Buy	田鎖郁夫 Ikuo Tagashiri	activist	582.0K	¥1,023	+6.1%	¥658K ($4K)
2025-09-24	SELL	unknown	杉山恒夫 Tsuneo Sugiyama	strategic	217.0K	¥1,023	+6.1%	¥329K ($2K)
2024-12-27	BUY	Market Buy	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	299.7K	¥1,231	-21.9%	¥57M ($371K)
2024-08-16	BUY	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	250.0K	¥816	+17.8%	¥204M ($1.3M)
2023-04-14	BUY	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	250.0K	¥1,029	-6.6%	¥257M ($1.7M)
2023-02-22	SELL	Market Buy	シンプレクス・アセット・マネジメント株式会社 Simplex Asset Management Co., Ltd.	passive	160.8K	¥1,129	+14.9%	¥128M ($825K)
2023-02-20	SELL	unknown	双日建材株式会社 SOJITZ BUILDING MATERIALS CORPORATION	other	90.3K	¥1,140	+15.7%	¥136M ($878K)
2021-07-16	SELL	unknown	モルガン・スタンレー・アンド・カンパニー・インターナショナル・ピーエルシー(Morgan Stanley & Co. International plc) Morgan Stanley & Co. International plc	unknown	0	¥1,250	+23.1%	¥281M ($1.8M)
2021-07-16	BUY	unknown	モルガン・スタンレー・アンド・カンパニー・インターナショナル・ピーエルシー(Morgan Stanley & Co. International plc) Morgan Stanley & Co. International plc	other	225.0K	¥1,250	-23.1%	¥281M ($1.8M)
2021-07-16	SELL	unknown	モルガン・スタンレー・アンド・カンパニー・インターナショナル・ピーエルシー(Morgan Stanley & Co. International plc) Morgan Stanley & Co. International plc	unknown	0	¥1,250	+23.1%	¥281M ($1.8M)

Frequently asked questions

Who has been buying New Constructor's Network Co., Ltd. stock?: 8 distinct investors have filed 5 disclosed large-shareholding filings in New Constructor's Network Co., Ltd. (7057), most recently on 2026-04-17. 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 New Constructor's Network Co., Ltd. have?: New Constructor's Network Co., Ltd. has 5 buy-side and 11 sell-side disclosures on record, covering ¥344M ($2.2M) in total reported value, spanning 2021-07-16 to 2026-04-17.
Where does StockDrifts get New Constructor's Network Co., Ltd. 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 New Constructor's Network Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.