Who has been buying Teikoku Tsushin Kogyo Co., Ltd. stock?

12 distinct investors have filed 21 disclosed large-shareholding filings in Teikoku Tsushin Kogyo Co., Ltd. (6763), most recently on 2026-04-08. 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 Teikoku Tsushin Kogyo Co., Ltd. have?

Teikoku Tsushin Kogyo Co., Ltd. has 21 buy-side and 7 sell-side disclosures on record, covering ¥10.5B ($67.5M) in total reported value, spanning 2021-08-10 to 2026-04-08.

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.

Teikoku Tsushin Kogyo Co., Ltd. 6763

Company

帝国通信工業株式会社Teikoku Tsushin Kogyo Co., Ltd.

Investors

Buys

Total Value

¥10.5B ($67.5M)

Avg Return

+46.70%

Last Filing

2026-04-08

Teikoku Tsushin Kogyo Co., Ltd. (6763) has 21 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 12 distinct investors. Together those filings cover ¥10.5B ($67.5M) in reported transaction value. The earliest filing StockDrifts holds for Teikoku Tsushin Kogyo Co., Ltd. is dated 2021-08-10; the most recent is 2026-04-08. Across these filings the average return since disclosure is +46.70%, 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	SELL	unknown	株式会社みずほ銀行	strategic	446.5K	¥2,788	-2.9%	¥82M ($532K)
2026-08-07	SELL	unknown	みずほ証券株式会社	other	9.1K	¥2,788	-2.9%	¥14M ($89K)
2026-08-07	SELL	unknown	アセットマネジメントOne株式会社	other	150.9K	¥2,788	-2.9%	¥129M ($833K)
2026-08-07	SELL	unknown	みずほ信託銀行株式会社	other	151.5K	¥2,788	-2.9%	¥25M ($160K)
2026-04-08	BUY	unknown	エヌエーブイエフ・セレクト・マスター・ファンド・エルピーFund LP) NAVF Select (Master	activist	146.2K	¥3,085	-	-
2026-04-08	BUY	unknown	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	495.6K	¥3,085	-	-
2026-04-08	BUY	unknown	ダルトン・インベストメンツ・インク(Dalton Investments	activist	212.0K	¥3,085	-	-
2026-03-25	BUY	Market Buy	GLOBAL MANAGEMENT PARTNERS LIMITED	passive	897.9K	¥2,759	+4.0%	¥2.5B ($16.0M)
2026-03-25	SELL	Market Buy	重田光時	passive	0	¥2,759	-4.0%	¥2.4B ($15.8M)
2026-03-25	BUY	Market Buy	株式会社スノーボールキャピタル	passive	30.1K	¥2,759	-	-
2026-03-09	BUY	Market Buy	重田光時	passive	885.4K	¥2,725	+5.3%	¥274M ($1.8M)
2026-03-09	BUY	Market Buy	株式会社スノーボールキャピタル	passive	30.1K	¥2,725	-	-
2025-05-20	BUY	Market Buy	株式会社スノーボールキャピタル Snowball Capital Inc.	passive	30.1K	¥2,130	-	-
2025-05-20	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	784.9K	¥2,130	+34.7%	¥210M ($1.4M)
2025-01-10	BUY	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	146.2K	¥2,326	-	-
2025-01-10	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	495.6K	¥2,326	-	-
2025-01-10	BUY	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments Dalton Investments, Inc.	activist	212.0K	¥2,326	+23.3%	¥105M ($680K)
2024-11-21	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	495.6K	¥3,090	-	-
2024-11-21	BUY	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	146.2K	¥3,090	-	-
2024-11-21	BUY	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments Dalton Investments, Inc.	activist	166.6K	¥3,090	-7.2%	¥308M ($2.0M)
2024-11-13	SELL	Market Buy	GLOBAL MANAGEMENT PARTNERS LIMITED Global Management Partners Limited	passive	0	¥2,893	+0.8%	¥2.1B ($13.2M)
2024-11-13	BUY	Market Buy	株式会社スノーボールキャピタル Snowball Capital Inc.	passive	30.1K	¥2,893	-	-
2024-11-13	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	686.2K	¥2,893	-0.8%	¥2.0B ($12.8M)
2024-09-24	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	160.7K	¥2,554	+12.3%	¥239M ($1.5M)
2024-09-24	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	14.0K	¥2,554	-12.3%	¥78M ($503K)
2024-09-24	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	476.5K	¥2,554	-	-
2024-09-24	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	197.6K	¥2,554	+12.3%	¥136M ($877K)
2024-09-18	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	495.6K	¥2,492	+15.1%	¥101M ($650K)
2024-09-18	BUY	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	146.2K	¥2,492	+15.1%	¥12M ($79K)
2024-09-18	BUY	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments Dalton Investments, Inc.	activist	67.2K	¥2,492	-	¥167M ($1.1M)
2024-04-10	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	454.9K	¥1,806	+58.9%	¥174M ($1.1M)
2024-04-10	BUY	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	141.4K	¥1,806	+58.9%	¥9M ($57K)
2024-04-05	BUY	Market Buy	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	476.5K	¥1,805	+59.0%	¥21M ($138K)
2024-04-05	BUY	Market Buy	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	44.2K	¥1,805	-	¥80M ($515K)
2024-04-05	BUY	Market Buy	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	67.5K	¥1,805	-	¥122M ($786K)
2024-04-05	SELL	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	144.2K	¥1,805	-59.0%	¥180M ($1.2M)
2023-12-26	BUY	unknown	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	358.6K	¥1,902	+50.8%	¥682M ($4.4M)
2023-12-26	BUY	unknown	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	136.5K	¥1,902	+50.8%	¥260M ($1.7M)
2023-11-24	BUY	Market Buy	GLOBAL MANAGEMENT PARTNERS LIMITED Global Management Partners Limited	passive	708.7K	¥1,978	+45.0%	¥1.4B ($8.9M)
2023-11-24	BUY	Market Buy	株式会社スノーボールキャピタル Snowball Capital Inc.	passive	30.1K	¥1,978	+45.0%	¥2M ($13K)
2023-08-29	BUY	Market Buy	GLOBAL MANAGEMENT PARTNERS LIMITED Global Management Partners Limited	passive	836.8K	¥1,790	+60.3%	¥1.5B ($9.6M)
2023-08-29	BUY	Market Buy	株式会社スノーボールキャピタル Snowball Capital Inc.	passive	30.1K	¥1,790	-	-
2022-04-04	BUY	Market Buy	GLOBAL MANAGEMENT PARTNERS LIMITED Global Management Partners Limited	passive	946.7K	¥1,439	-	¥1.4B ($8.8M)
2022-04-04	BUY	Market Buy	株式会社鹿児島東インド会社 Kagoshima East India Inc	passive	0	¥1,439	-	-
2022-04-04	SELL	Market Buy	Hikari Investment BVI Limited	passive	0	¥1,439	-99.4%	¥99M ($640K)
2022-04-04	BUY	Market Buy	株式会社スノーボールキャピタル Snowball Capital Inc.	passive	30.1K	¥1,439	-	¥43M ($279K)
2022-04-04	SELL	Market Buy	重田光時 Mitsutoki Shigeta	passive	0	¥1,439	-99.4%	¥1.4B ($9.1M)
2021-12-15	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	976.3K	¥1,305	+119.8%	¥8M ($51K)
2021-12-15	BUY	Market Buy	株式会社鹿児島東インド会社 Kagoshima East India Inc	passive	100	¥1,305	-	-
2021-12-15	SELL	Market Buy	Hikari Investment BVI Limited	passive	68.8K	¥1,305	-119.8%	¥7M ($43K)

Showing the 50 most recent of 53 filings.

Frequently asked questions

Who has been buying Teikoku Tsushin Kogyo Co., Ltd. stock?: 12 distinct investors have filed 21 disclosed large-shareholding filings in Teikoku Tsushin Kogyo Co., Ltd. (6763), most recently on 2026-04-08. 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 Teikoku Tsushin Kogyo Co., Ltd. have?: Teikoku Tsushin Kogyo Co., Ltd. has 21 buy-side and 7 sell-side disclosures on record, covering ¥10.5B ($67.5M) in total reported value, spanning 2021-08-10 to 2026-04-08.
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.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.