Who has been buying TRANSACTION CO.,Ltd. stock?

10 distinct investors have filed 29 disclosed large-shareholding filings in TRANSACTION CO.,Ltd. (7818), most recently on 2026-05-11. 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 TRANSACTION CO.,Ltd. have?

TRANSACTION CO.,Ltd. has 29 buy-side and 16 sell-side disclosures on record, covering ¥23.3B ($150.5M) in total reported value, spanning 2021-08-27 to 2026-05-11.

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.

TRANSACTION CO.,Ltd. 7818

Company

株式会社トランザクションTRANSACTION CO.,Ltd.

Investors

Buys

Total Value

¥23.3B ($150.5M)

Avg Return

+35.49%

Last Filing

2026-05-11

TRANSACTION CO.,Ltd. (7818) has 29 disclosed large-shareholding filings and 16 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥23.3B ($150.5M) in reported transaction value. The earliest filing StockDrifts holds for TRANSACTION CO.,Ltd. is dated 2021-08-27; the most recent is 2026-05-11. Across these filings the average return since disclosure is +35.49%, 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
2026-09-15	BUY	unknown	NEUBERGER BERMAN TAIWANLIMITED SITE	other	843.5K	¥1,199	-	-
2026-09-15	BUY	Market Buy	ニューバーガー・バーマン株式会社	other	4.9M	¥1,199	+3.8%	¥21M ($134K)
2026-09-15	BUY	unknown	NEUBERGER BERMAN TAIWANLIMITED SITE	other	843.5K	¥1,199	-	-
2026-09-15	BUY	Market Buy	ニューバーガー・バーマン株式会社	other	4.9M	¥1,199	+3.8%	¥21M ($134K)
2026-09-01	BUY	Market Buy	NEUBERGER BERMAN TAIWANLIMITED SITE	other	843.5K	¥1,169	+6.4%	¥774M ($5.0M)
2026-09-01	SELL	unknown	ニューバーガー・バーマン株式会社	other	4.9M	¥1,169	-6.4%	¥74M ($477K)
2026-06-23	BUY	unknown	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	1.6M	¥1,351	-	-
2026-06-23	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	717.3K	¥1,351	-	-
2026-06-23	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	178.4K	¥1,351	-	-
2026-06-23	BUY	unknown	フィデリティ・マネジメント・アンド・リサーチ・ジャパン株式会社	other	518.8K	¥1,351	-	-
2026-06-23	BUY	Market Buy	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	1.6M	¥1,351	-7.9%	¥39M ($251K)
2026-06-23	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	717.3K	¥1,351	-7.9%	¥23M ($150K)
2026-06-23	BUY	Market Buy	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	178.4K	¥1,351	-7.9%	¥8M ($50K)
2026-06-23	BUY	Market Buy	フィデリティ・マネジメント・アンド・リサーチ・ジャパン株式会社	other	518.8K	¥1,351	-7.9%	¥16M ($100K)
2026-06-09	BUY	unknown	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	792.5K	¥1,294	-3.9%	¥1.0B ($6.6M)
2026-06-09	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	358.2K	¥1,294	-3.9%	¥464M ($3.0M)
2026-06-09	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	89.2K	¥1,294	-3.9%	¥115M ($745K)
2026-06-09	BUY	unknown	フィデリティ・マネジメント・アンド・リサーチ・ジャパン株式会社	other	259.4K	¥1,294	-3.9%	¥336M ($2.2M)
2026-05-11	BUY	unknown	石川葵 aoi ishikawa	activist	4.4M	¥1,144	-	¥105M ($680K)
2026-05-11	BUY	unknown	石川新 arata ishikawa	activist	4.4M	¥1,144	+8.7%	¥5.0B ($32.2M)
2026-05-11	BUY	unknown	石川葵 aoi ishikawa	activist	4.4M	¥1,144	+8.7%	¥5.0B ($32.3M)
2026-05-11	SELL	negotiated	石川諭	activist	12.2M	¥1,144	-8.7%	¥395M ($2.5M)
2026-05-11	BUY	Market Buy	株式会社石川商事	activist	800.0K	¥1,144	+8.7%	¥20M ($127K)
2026-05-11	BUY	unknown	石川新 arata ishikawa	activist	4.4M	¥1,144	-	¥105M ($680K)
2026-01-05	BUY	Market Buy	ニューバーガー・バーマン株式会社	other	5.0M	¥1,130	+10.1%	¥650M ($4.2M)
2026-01-05	BUY	Market Buy	NEUBERGER BERMAN TAIWANLIMITED SITE	other	182.0K	¥1,130	+10.1%	¥26M ($168K)
2025-11-17	BUY	Market Buy	ニューバーガー・バーマン株式会社 Neuberger Berman East Asia Limited	other	4.4M	¥1,074	+15.8%	¥773M ($5.0M)
2025-11-17	SELL	Market Buy	NEUBERGER BERMAN TAIWANLIMITED SITE	other	159.8K	¥1,074	-15.8%	¥31M ($199K)
2025-09-22	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	3.0M	¥1,224	-	-
2025-09-22	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	3.0M	¥1,224	-	-
2025-09-05	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	3.0M	¥1,183	+5.2%	¥75M ($483K)
2025-09-05	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	3.0M	¥1,183	+5.2%	¥75M ($483K)
2025-08-07	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.5M	¥1,274	-2.4%	¥1.9B ($12.3M)
2025-08-07	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.5M	¥1,274	-2.4%	¥1.9B ($12.3M)
2025-08-05	SELL	negotiated	石川諭 Satoshi Ishikawa	activist	6.4M	¥1,288.5	+3.5%	¥2.0B ($12.9M)
2025-08-05	SELL	negotiated	石川智香子 Chikako Ishikawa	activist	814.0K	¥1,288.5	+3.5%	¥64M ($415K)
2025-08-05	BUY	negotiated	石川葵 Aoi Ishikawa	activist	2.2M	¥1,288.5	-	-
2025-08-05	BUY	negotiated	石川新 Arata Ishikawa	activist	2.2M	¥1,288.5	-	-
2025-08-05	BUY	negotiated	株式会社石川商事 Ishikawa Shoji Co., Ltd.	activist	400.0K	¥1,288.5	-	-
2025-08-05	SELL	negotiated	石川諭	activist	6.4M	¥1,288.5	+3.5%	¥2.0B ($12.9M)
2025-08-05	SELL	unknown	石川智香子	activist	814.0K	¥1,288.5	+3.5%	¥64M ($415K)
2025-08-05	BUY	unknown	石川葵	activist	2.2M	¥1,288.5	-	-
2025-08-05	BUY	unknown	石川新	activist	2.2M	¥1,288.5	-	-
2025-08-05	BUY	unknown	株式会社石川商事	activist	400.0K	¥1,288.5	-	-
2025-07-31	BUY	negotiated	石川智香子 Chikako Ishikawa	activist	864.0K	¥1,316	-	-
2025-07-31	SELL	negotiated	石川諭 Satoshi Ishikawa	activist	8.0M	¥1,316	+5.5%	¥1.0B ($6.5M)
2025-07-31	BUY	negotiated	石川葵 Aoi Ishikawa	activist	2.2M	¥1,316	-5.5%	¥50M ($324K)
2025-07-31	BUY	negotiated	石川新 Arata Ishikawa	activist	2.2M	¥1,316	-5.5%	¥50M ($324K)
2025-07-31	BUY	negotiated	株式会社石川商事 Ishikawa Shoji Co., Ltd.	activist	400.0K	¥1,316	-5.5%	¥131M ($848K)
2025-07-16	BUY	Market Buy	ニューバーガー・バーマン株式会社 Neuberger Berman East Asia Limited	other	1.9M	¥1,340.5	-7.2%	¥539M ($3.5M)

Showing the 50 most recent of 81 filings.

Frequently asked questions

Who has been buying TRANSACTION CO.,Ltd. stock?: 10 distinct investors have filed 29 disclosed large-shareholding filings in TRANSACTION CO.,Ltd. (7818), most recently on 2026-05-11. 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 TRANSACTION CO.,Ltd. have?: TRANSACTION CO.,Ltd. has 29 buy-side and 16 sell-side disclosures on record, covering ¥23.3B ($150.5M) in total reported value, spanning 2021-08-27 to 2026-05-11.
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.