Who has been buying KATITAS Co. Ltd. stock?

10 distinct investors have filed 11 disclosed large-shareholding filings in KATITAS Co. Ltd. (8919), most recently on 2025-12-03. 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 KATITAS Co. Ltd. have?

KATITAS Co. Ltd. has 11 buy-side and 15 sell-side disclosures on record, covering ¥46.8B ($302.3M) in total reported value, spanning 2021-05-20 to 2025-12-03.

Where does StockDrifts get KATITAS 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.

KATITAS Co. Ltd. 8919

Company

株式会社カチタスKATITAS Co. Ltd.

Investors

Buys

Total Value

¥46.8B ($302.3M)

Avg Return

+34.39%

Last Filing

2025-12-03

KATITAS Co. Ltd. (8919) has 11 disclosed large-shareholding filings and 15 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥46.8B ($302.3M) in reported transaction value. The earliest filing StockDrifts holds for KATITAS Co. Ltd. is dated 2021-05-20; the most recent is 2025-12-03. 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 +34.39%, 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
2026-06-05	BUY	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー(Capital Research and Management Company) Capital Research and Management Company	passive	4.1M	¥3,460	-5.3%	¥14.3B ($91.9M)
2025-12-03	SELL	unknown	ハリス・アソシエイツ・エル・ピー(Harris Associates L.P.) Harris Associates L.P.	other	3.0M	¥3,135	+0.0%	¥3.1B ($20.2M)
2025-09-19	SELL	Market Buy	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	2.4M	¥2,901	-8.1%	¥183M ($1.2M)
2025-09-19	BUY	Market Buy	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	1.8M	¥2,901	+8.1%	¥890M ($5.7M)
2025-04-21	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	2.5M	¥2,126	+47.5%	¥5.3B ($34.0M)
2025-04-21	BUY	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	1.5M	¥2,126	+47.5%	¥3.2B ($20.7M)
2025-02-05	SELL	unknown	ハリス・アソシエイツ・エル・ピー(Harris Associates L.P.) Harris Associates L.P.	other	4.0M	¥2,159	-45.2%	¥2.0B ($12.8M)
2024-08-20	BUY	Market Buy	ハリス・アソシエイツ・エル・ピー(Harris Associates L.P.) Harris Associates L.P.	other	4.9M	¥1,800	+74.2%	¥1.6B ($10.1M)
2024-05-08	BUY	unknown	ハリス・アソシエイツ・エル・ピー(Harris Associates L.P.) Harris Associates L.P.	other	4.1M	¥1,941	+61.5%	¥7.9B ($51.0M)
2024-01-22	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	186.0K	¥1,790	-75.1%	¥14M ($91K)
2024-01-22	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.2M	¥1,790	+75.1%	¥5.6B ($36.0M)
2024-01-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-19.7K	¥1,790	+75.1%	-
2023-12-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	4.0M	¥2,115	+48.2%	¥8.3B ($53.5M)
2023-12-07	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	67.2K	¥2,115	-48.2%	¥166M ($1.1M)
2023-12-07	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	198.8K	¥2,115	+48.2%	¥420M ($2.7M)
2023-12-06	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	1.8M	¥2,220	-41.2%	¥1.4B ($9.3M)
2023-12-06	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	1.4M	¥2,220	-41.2%	¥367M ($2.4M)
2023-11-22	SELL	Market Buy	マサチューセッツ・ファイナンシャル・サービセズ・カンパニー(Massachusetts Financial Services Company) Massachusetts Financial Services Company	passive	2.9M	¥2,203	-42.3%	¥2.4B ($15.3M)
2023-06-06	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	2.5M	¥2,456	-27.6%	¥1.2B ($7.7M)
2023-06-06	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	1.6M	¥2,456	-27.6%	¥947M ($6.1M)
2023-02-22	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	4.7M	¥2,661	+17.8%	¥1.9B ($12.6M)
2023-02-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	153.3K	¥2,661	+17.8%	¥408M ($2.6M)
2022-12-12	SELL	Market Buy	マフューズ・インターナショナル・キャピタル・マネージメント・エルエルシー(Matthews International Capital Management, LLC) Matthews International Capital Management, LLC	passive	3.1M	¥3,155	+0.6%	¥2.6B ($16.5M)
2022-11-21	SELL	Market Buy	マフューズ・インターナショナル・ファンズ (Matthews International Funds) Matthews International Funds	passive	3.2M	¥3,280	+4.4%	¥2.6B ($16.8M)
2022-10-21	BUY	Market Buy	マサチューセッツ・ファイナンシャル・サービセズ・カンパニー(Massachusetts Financial Services Company) Massachusetts Financial Services Company	passive	3.9M	¥3,145	-0.3%	¥12.4B ($79.9M)
2022-07-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.9M	¥3,205	-2.2%	¥12.6B ($81.5M)
2022-06-10	SELL	Market Buy	マフューズ・インターナショナル・キャピタル・マネージメント・エルエルシー(Matthews International Capital Management, LLC) Matthews International Capital Management, LLC	passive	4.0M	¥2,969	-5.6%	¥2.4B ($15.4M)
2022-01-12	SELL	Market Buy	クープランド・カーディフ・アセット・マネジメント・エルエルピー(Coupland Cardiff Asset Management LLP) Coupland Cardiff Asset Management LLP	passive	3.1M	¥4,105	+23.6%	¥3.4B ($21.9M)
2021-05-20	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	3.0M	¥3,105	+1.0%	¥366M ($2.4M)
2021-05-20	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	1.9M	¥3,105	-1.0%	¥269M ($1.7M)

Frequently asked questions

Who has been buying KATITAS Co. Ltd. stock?: 10 distinct investors have filed 11 disclosed large-shareholding filings in KATITAS Co. Ltd. (8919), most recently on 2025-12-03. 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 KATITAS Co. Ltd. have?: KATITAS Co. Ltd. has 11 buy-side and 15 sell-side disclosures on record, covering ¥46.8B ($302.3M) in total reported value, spanning 2021-05-20 to 2025-12-03.
Where does StockDrifts get KATITAS 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 KATITAS Co. Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.