Who has been buying Newtech Co.,Ltd. stock?

7 distinct investors have filed 12 disclosed large-shareholding filings in Newtech Co.,Ltd. (6734), most recently on 2026-02-20. 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 Newtech Co.,Ltd. have?

Newtech Co.,Ltd. has 12 buy-side and 8 sell-side disclosures on record, covering ¥3.1B ($20.3M) in total reported value, spanning 2022-12-12 to 2026-02-20.

Where does StockDrifts get Newtech 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.

Newtech Co.,Ltd. 6734

Company

株式会社ニューテックNewtech Co.,Ltd.

Investors

Buys

Total Value

¥3.1B ($20.3M)

Avg Return

+52.69%

Last Filing

2026-02-20

Newtech Co.,Ltd. (6734) has 12 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥3.1B ($20.3M) in reported transaction value. The earliest filing StockDrifts holds for Newtech Co.,Ltd. is dated 2022-12-12; the most recent is 2026-02-20. 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 +52.69%, 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
2026-02-20	BUY	Market Buy	サクサ株式会社 SAXA, Inc.	activist	1.9M	¥2,625	+0.0%	¥343M ($2.2M)
2026-02-17	SELL	unknown	株式会社UH Partners 2	unknown	0	¥2,625	-0.0%	-
2026-02-17	SELL	unknown	光通信株式会社	unknown	0	¥2,625	-0.0%	-
2026-02-16	SELL	unknown	株式会社カナモト Kanamoto Co.,Ltd.	unknown	0	¥2,625	-0.0%	¥433M ($2.8M)
2026-02-10	BUY	acquisition	サクサ株式会社 SAXA, Inc.	activist	1.8M	¥2,627	-0.0%	¥4.8B ($30.8M)
2026-02-10	SELL	unknown	笠原啓子 KASAHARA KEIKO	unknown	0	¥2,627	+0.0%	¥1.4B ($8.8M)
2025-12-25	SELL	unknown	株式会社カナモト Kanamoto Co.,Ltd.	other	165.0K	¥2,640	+0.5%	¥19M ($124K)
2025-12-19	BUY	unknown	笠原啓子 KASAHARA KEIKO	strategic	518.3K	¥2,197	+19.5%	¥22M ($142K)
2025-12-19	SELL	unknown	笠原啓子 KASAHARA KEIKO	strategic	518.3K	¥2,197	-19.5%	¥22M ($145K)
2025-09-29	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	86.6K	¥1,962	+33.8%	¥3M ($21K)
2025-09-29	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	150.4K	¥1,962	+33.8%	¥295M ($1.9M)
2025-07-28	SELL	unknown	株式会社ニューテック Newtech Co.,Ltd.	other	135.2K	¥1,740	-50.9%	¥50M ($322K)
2025-07-28	BUY	unknown	株式会社ニューテック Newtech Co.,Ltd.	other	135.2K	¥1,740	+50.9%	¥50M ($322K)
2025-07-02	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	85.0K	¥1,524	+72.3%	¥32M ($207K)
2025-07-02	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	150.4K	¥1,524	+72.3%	¥229M ($1.5M)
2025-05-16	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	63.8K	¥1,558	+68.5%	¥33M ($215K)
2025-05-16	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	150.4K	¥1,558	+68.5%	¥234M ($1.5M)
2025-04-07	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	42.5K	¥1,470	+78.6%	¥31M ($199K)
2025-04-07	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	150.4K	¥1,470	+78.6%	¥221M ($1.4M)
2025-01-09	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	21.4K	¥1,628	+61.3%	¥35M ($225K)
2025-01-09	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	150.4K	¥1,628	+61.3%	¥245M ($1.6M)
2024-10-25	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	150.4K	¥1,554	+69.0%	¥38M ($242K)
2024-09-02	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	126.4K	¥1,701	+54.4%	¥36M ($231K)
2024-07-16	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	105.2K	¥1,685	+55.9%	¥177M ($1.1M)
2024-07-08	BUY	Market Buy	笠原啓子 KASAHARA KEIKO	strategic	528.3K	¥1,621	+62.0%	¥767M ($5.0M)
2024-07-08	BUY	unknown	笠原啓子 KASAHARA KEIKO	strategic	528.3K	¥1,621	+62.0%	¥856M ($5.5M)
2024-07-05	BUY	unknown	笠原啓子 KASAHARA KEIKO	strategic	528.3K	¥1,755	+49.6%	¥831M ($5.4M)
2024-07-05	SELL	unknown	笠原康人(相続人代表笠原啓子) KASAHARA YASUHITO	strategic	0	¥1,755	-49.6%	¥14M ($88K)
2023-01-24	BUY	unknown	笠原啓子 KASAHARA KEIKO	activist	55.0K	¥1,396	+88.1%	¥77M ($495K)
2023-01-24	BUY	unknown	笠原康人 YASUHITO KASAHARA	activist	773.3K	¥1,396	+88.1%	¥1.1B ($6.9M)
2022-12-12	BUY	unknown	笠原啓子 KASAHARA KEIKO	activist	55.0K	¥1,359	+93.2%	¥75M ($482K)
2022-12-12	BUY	unknown	笠原啓子 KASAHARA KEIKO	activist	55.0K	¥1,359	+93.2%	¥75M ($482K)
2022-12-12	BUY	unknown	笠原康人 YASUHITO KASAHARA	activist	890.7K	¥1,359	+93.2%	¥1.2B ($7.8M)
2022-12-12	BUY	unknown	笠原康人 YASUHITO KASAHARA	activist	890.7K	¥1,359	+93.2%	¥1.2B ($7.8M)

Frequently asked questions

Who has been buying Newtech Co.,Ltd. stock?: 7 distinct investors have filed 12 disclosed large-shareholding filings in Newtech Co.,Ltd. (6734), most recently on 2026-02-20. 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 Newtech Co.,Ltd. have?: Newtech Co.,Ltd. has 12 buy-side and 8 sell-side disclosures on record, covering ¥3.1B ($20.3M) in total reported value, spanning 2022-12-12 to 2026-02-20.
Where does StockDrifts get Newtech 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 Newtech Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.