Who has been buying Yamato Kogyo Co., Ltd. stock?

25 distinct investors have filed 48 disclosed large-shareholding filings in Yamato Kogyo Co., Ltd. (5444), most recently on 2026-04-20. 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 Yamato Kogyo Co., Ltd. have?

Yamato Kogyo Co., Ltd. has 48 buy-side and 32 sell-side disclosures on record, covering ¥176.6B ($1.1B) in total reported value, spanning 2021-10-19 to 2026-04-20.

Where does StockDrifts get Yamato Kogyo 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.

Yamato Kogyo Co., Ltd. 5444

Company

大和工業株式会社Yamato Kogyo Co., Ltd.

Investors

Buys

Total Value

¥176.6B ($1.1B)

Avg Return

+103.79%

Last Filing

2026-04-20

Yamato Kogyo Co., Ltd. (5444) has 48 disclosed large-shareholding filings and 32 disclosed disposals on record, filed by 25 distinct investors. Together those filings cover ¥176.6B ($1.1B) in reported transaction value. The earliest filing StockDrifts holds for Yamato Kogyo Co., Ltd. is dated 2021-10-19; the most recent is 2026-04-20. 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 +103.79%, 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
2026-06-03	SELL	unknown	ジェー・ピー・モルガン・セキュリティーズ・エルエルシー J.P. Morgan Securities LLC	other	111.2K	¥11,890	-5.0%	¥74M ($476K)
2026-06-03	SELL	unknown	ジェー・ピー・モルガン・セキュリティーズ・ピーエルシー J.P. Morgan Securities plc	other	8.0K	¥11,890	-5.0%	¥1.0B ($6.7M)
2026-06-03	SELL	unknown	JPモルガン証券株式会社	other	29.4K	¥11,890	-5.0%	¥590M ($3.8M)
2026-06-03	SELL	Market Buy	JPモルガン・アセット・マネジメント(アジア・パシフィック)リミテッドLimited) JPMorgan Asset Management (Asia Pacific	passive	303.6K	¥11,890	-5.0%	¥369M ($2.4M)
2026-06-03	BUY	Market Buy	ジェー・ピー・モルガン・インベストメント・マネージメント・インク J.P. Morgan Investment Management Inc.	passive	121.0K	¥11,890	+5.0%	¥590M ($3.8M)
2026-06-03	SELL	Market Buy	JPモルガン・アセット・マネジメント株式会社	passive	2.7M	¥11,890	-5.0%	¥663M ($4.3M)
2026-04-20	SELL	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・エルエルシー J.P. Morgan Securities LLC	other	118.4K	¥11,975	+0.6%	¥148M ($958K)
2026-04-20	BUY	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・ピーエルシー J.P. Morgan Securities plc	other	91.3K	¥11,975	-0.6%	¥1.1B ($7.1M)
2026-04-20	SELL	Market Buy	JPモルガン証券株式会社	other	83.4K	¥11,975	+0.6%	¥7.7B ($49.8M)
2026-04-20	BUY	Market Buy	JPモルガン・アセット・マネジメント(アジア・パシフィック)リミテッドLimited) JPMorgan Asset Management (Asia Pacific	other	331.8K	¥11,975	-0.6%	¥4.0B ($25.6M)
2026-04-20	BUY	Market Buy	ジェー・ピー・モルガン・インベストメント・マネージメント・インク J.P. Morgan Investment Management Inc.	passive	75.4K	¥11,975	-0.6%	¥903M ($5.8M)
2026-04-20	BUY	Market Buy	JPモルガン・アセット・マネジメント株式会社	passive	2.7M	¥11,975	-0.6%	¥32.7B ($210.8M)
2026-04-03	SELL	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・ピーエルシー J.P. Morgan Securities plc	other	94.0K	¥12,205	+0.7%	¥2.9B ($18.6M)
2026-04-03	BUY	Market Buy	JPモルガン証券株式会社	other	725.8K	¥12,205	-0.7%	¥2.9B ($18.6M)
2026-04-03	BUY	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・エルエルシー J.P. Morgan Securities LLC	other	129.6K	¥12,205	-0.7%	¥76M ($488K)
2026-04-03	SELL	Market Buy	JPモルガン・アセット・マネジメント(アジア・パシフィック)リミテッドLimited) JPMorgan Asset Management (Asia Pacific	other	335.0K	¥12,205	+0.7%	¥151M ($976K)
2026-04-03	BUY	Market Buy	ジェー・ピー・モルガン・インベストメント・マネージメント・インク J.P. Morgan Investment Management Inc.	passive	74.8K	¥12,205	-0.7%	¥913M ($5.9M)
2026-04-03	BUY	Market Buy	JPモルガン・アセット・マネジメント株式会社	passive	2.7M	¥12,205	-0.7%	¥151M ($976K)
2026-03-18	SELL	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・エルエルシー J.P. Morgan Securities LLC	other	121.9K	¥12,550	+4.6%	¥1.5B ($9.4M)
2026-03-18	SELL	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・ピーエルシー J.P. Morgan Securities plc	other	328.4K	¥12,550	+4.6%	¥3.9B ($25.4M)
2026-03-18	BUY	Market Buy	JPモルガン証券株式会社	other	489.7K	¥12,550	-4.6%	¥5.9B ($37.8M)
2026-03-18	BUY	Market Buy	JPモルガン・アセット・マネジメント(アジア・パシフィック)リミテッドLimited) JPMorgan Asset Management (Asia Pacific	other	344.7K	¥12,550	+4.6%	¥4.1B ($26.6M)
2026-03-18	BUY	Market Buy	ジェー・ピー・モルガン・インベストメント・マネージメント・インク J.P. Morgan Investment Management Inc.	passive	76.0K	¥12,550	+4.6%	¥910M ($5.9M)
2026-03-18	BUY	Market Buy	JPモルガン・アセット・マネジメント株式会社	passive	2.7M	¥12,550	-4.6%	¥32.5B ($209.7M)
2026-03-04	SELL	Market Buy	JPモルガン証券株式会社	other	25.1K	¥11,975	+0.0%	¥301M ($1.9M)
2026-03-04	SELL	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・エルエルシー J.P. Morgan Securities LLC	other	127.3K	¥11,975	+0.0%	¥1.5B ($9.8M)
2026-03-04	BUY	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・ピーエルシー J.P. Morgan Securities plc	other	699.9K	¥11,975	+0.0%	¥8.4B ($54.1M)
2026-03-04	BUY	Market Buy	JPモルガン・アセット・マネジメント(アジア・パシフィック)リミテッドLimited) JPMorgan Asset Management (Asia Pacific	other	344.7K	¥11,975	+0.0%	¥4.1B ($26.6M)
2026-03-04	BUY	Market Buy	ジェー・ピー・モルガン・インベストメント・マネージメント・インク J.P. Morgan Investment Management Inc.	passive	76.0K	¥11,975	+0.0%	¥910M ($5.9M)
2026-03-04	BUY	Market Buy	JPモルガン・アセット・マネジメント株式会社	passive	2.7M	¥11,975	+0.0%	¥32.1B ($207.1M)
2026-02-04	BUY	Market Buy	JPモルガン・アセット・マネジメント株式会社 JPMorgan Asset Management (Japan) Limited	passive	3.2M	¥12,265	-2.4%	¥39.6B ($255.4M)
2025-10-20	SELL	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・エルエルシー J.P. Morgan Securities LLC	other	124.2K	¥9,452	-26.7%	¥307M ($2.0M)
2025-10-20	BUY	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・ピーエルシー J.P. Morgan Securities plc	other	173.0K	¥9,452	+26.7%	¥1.4B ($9.1M)
2025-10-20	SELL	Market Buy	JPモルガン証券株式会社 JPMorgan Securities Japan Co., Ltd.	other	59.7K	¥9,452	-26.7%	¥6.0B ($38.4M)
2025-10-20	BUY	Market Buy	JPモルガン・アセット・マネジメント(アジア・パシフィック)リミテッドLimited) JPMorgan Asset Management (Asia Pacific	other	223.9K	¥9,452	+26.7%	¥2.1B ($13.7M)
2025-10-20	SELL	Market Buy	JPモルガン・アセット・マネジメント株式会社 JPMorgan Asset Management (Japan) Limited	passive	2.2M	¥9,452	-26.7%	¥61M ($396K)
2025-10-03	BUY	Market Buy	JPモルガン証券株式会社 JPMorgan Securities Japan Co., Ltd.	other	691.5K	¥9,207	+30.1%	¥6.4B ($41.1M)
2025-10-03	BUY	Market Buy	JPモルガン・アセット・マネジメント株式会社 JPMorgan Asset Management (Japan) Limited	passive	2.2M	¥9,207	+30.1%	¥20.0B ($128.8M)
2025-10-03	BUY	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・エルエルシー J.P. Morgan Securities LLC	other	153.8K	¥9,207	+30.1%	¥1.4B ($9.1M)
2025-10-03	BUY	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・ピーエルシー J.P. Morgan Securities plc	other	23.7K	¥9,207	+30.1%	¥218M ($1.4M)
2025-10-03	BUY	Market Buy	JPモルガン・アセット・マネジメント(アジア・パシフィック)リミテッドLimited) JPMorgan Asset Management (Asia Pacific	other	223.9K	¥9,207	+30.1%	¥2.1B ($13.3M)
2025-06-20	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	3.2M	¥8,661	+38.3%	¥27.3B ($176.3M)
2025-06-20	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	2.2M	¥8,661	+38.3%	¥6.2B ($40.3M)
2025-04-22	SELL	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	3.2M	¥8,162	-46.7%	¥637M ($4.1M)
2025-04-22	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.5M	¥8,162	+46.7%	¥6.9B ($44.8M)
2025-02-07	BUY	Market Buy	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.7M	¥7,745	+54.6%	¥13.0B ($83.7M)
2025-02-07	BUY	Market Buy	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	150.0K	¥7,745	+54.6%	¥1.2B ($7.5M)
2025-02-07	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.0M	¥7,745	+54.6%	¥3.3B ($21.4M)
2025-02-07	BUY	Market Buy	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	178.3K	¥7,745	+54.6%	¥856M ($5.5M)
2024-08-22	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	652.4K	¥7,168	+67.1%	¥4.7B ($30.2M)

Showing the 50 most recent of 104 filings.

Frequently asked questions

Who has been buying Yamato Kogyo Co., Ltd. stock?: 25 distinct investors have filed 48 disclosed large-shareholding filings in Yamato Kogyo Co., Ltd. (5444), most recently on 2026-04-20. 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 Yamato Kogyo Co., Ltd. have?: Yamato Kogyo Co., Ltd. has 48 buy-side and 32 sell-side disclosures on record, covering ¥176.6B ($1.1B) in total reported value, spanning 2021-10-19 to 2026-04-20.
Where does StockDrifts get Yamato Kogyo 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 Yamato Kogyo Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.