Who has been buying Osaka Soda Co., Ltd. stock?

22 distinct investors have filed 64 disclosed large-shareholding filings in Osaka Soda Co., Ltd. (4046), most recently on 2026-04-07. 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 Osaka Soda Co., Ltd. have?

Osaka Soda Co., Ltd. has 64 buy-side and 50 sell-side disclosures on record, covering ¥17.3B ($111.5M) in total reported value, spanning 2021-09-07 to 2026-04-07.

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.

Osaka Soda Co., Ltd. 4046

Company

株式会社大阪ソーダOsaka Soda Co., Ltd.

Investors

Buys

Total Value

¥17.3B ($111.5M)

Avg Return

+82.32%

Last Filing

2026-04-07

Osaka Soda Co., Ltd. (4046) has 64 disclosed large-shareholding filings and 50 disclosed disposals on record, filed by 22 distinct investors. Together those filings cover ¥17.3B ($111.5M) in reported transaction value. The earliest filing StockDrifts holds for Osaka Soda Co., Ltd. is dated 2021-09-07; the most recent is 2026-04-07. Across these filings the average return since disclosure is +82.32%, 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
2026-06-08	SELL	unknown	フィデリティ投信株式会社	other	8.7M	¥1,798	-11.9%	¥2.5B ($16.1M)
2026-06-08	BUY	unknown	エフアイエルインベストメントマネジメントホンコンリミテッドLimited) FIL Investment Management (Hong Kong	other	368.2K	¥1,798	-	¥662M ($4.3M)
2026-04-07	BUY	unknown	株式会社みずほ銀行	strategic	3.3M	¥1,766	-	-
2026-04-07	BUY	unknown	みずほ証券株式会社	other	183.0K	¥1,766	-	¥323M ($2.1M)
2026-04-07	SELL	unknown	アセットマネジメントOne株式会社	other	2.3M	¥1,766	-13.9%	¥2.6B ($17.1M)
2026-03-23	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	5.5M	¥1,725	-16.6%	¥2.4B ($15.5M)
2026-03-23	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	5.5M	¥1,725	-16.6%	¥2.4B ($15.5M)
2025-09-22	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	6.8M	¥1,714	-17.4%	¥2.7B ($17.6M)
2025-09-22	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	6.8M	¥1,714	-17.4%	¥2.7B ($17.6M)
2025-09-05	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	8.4M	¥1,771	-13.6%	¥2.9B ($18.8M)
2025-09-05	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	8.4M	¥1,771	-13.6%	¥2.9B ($18.8M)
2025-05-02	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	4.6M	¥1,485	-35.5%	¥2.1B ($13.4M)
2025-05-02	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	182.2K	¥1,485	-	-
2025-05-02	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	464.5K	¥1,485	+35.5%	¥99M ($640K)
2025-05-02	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	214.3K	¥1,485	+35.5%	¥99M ($640K)
2025-03-19	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	6.0M	¥1,619	+24.3%	¥9.7B ($62.4M)
2025-03-19	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	182.2K	¥1,619	+24.3%	¥295M ($1.9M)
2025-03-19	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	405.4K	¥1,619	+24.3%	¥656M ($4.2M)
2025-03-19	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	144.2K	¥1,619	+24.3%	¥233M ($1.5M)
2024-12-04	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	182.2K	¥1,419	-41.8%	¥57M ($367K)
2024-12-04	BUY	Market Buy	JPモルガン証券株式会社 JPMorgan Securities Japan Co., Ltd.	other	89.6K	¥1,419	-	¥127M ($820K)
2024-12-04	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	327.5K	¥1,419	-41.8%	¥95M ($612K)
2024-12-04	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	6.0M	¥1,419	-41.8%	¥455M ($2.9M)
2024-12-04	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	125.2K	¥1,419	-41.8%	¥626M ($4.0M)
2024-10-18	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	222.5K	¥1,745	-	-
2024-10-18	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	6.3M	¥1,745	-15.3%	¥140M ($903K)
2024-10-18	SELL	Market Buy	JPモルガン証券株式会社 JPMorgan Securities Japan Co., Ltd.	other	124.1K	¥1,745	-15.3%	¥93M ($602K)
2024-10-18	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	398.8K	¥1,745	+15.3%	¥840M ($5.4M)
2024-10-18	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	560.3K	¥1,745	-15.3%	¥210M ($1.4M)
2024-10-03	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	6.4M	¥1,890	+6.5%	¥25M ($163K)
2024-10-03	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	222.5K	¥1,890	+6.5%	¥101M ($652K)
2024-10-03	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	-82.3K	¥1,890	-2.9%	¥556M ($3.6M)
2024-10-03	BUY	Market Buy	JPモルガン証券株式会社 JPMorgan Securities Japan Co., Ltd.	other	168.4K	¥1,890	+6.5%	¥152M ($978K)
2024-10-03	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	682.5K	¥1,890	+6.5%	¥581M ($3.7M)
2024-09-19	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	1.3M	¥1,844	-9.1%	¥64M ($413K)
2024-09-19	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	34.9K	¥1,844	+9.1%	¥10M ($64K)
2024-09-19	BUY	Market Buy	JPモルガン証券株式会社 JPMorgan Securities Japan Co., Ltd.	other	19.2K	¥1,844	-	¥35M ($229K)
2024-09-19	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	42.0K	¥1,844	-9.1%	¥434M ($2.8M)
2024-09-19	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	74.1K	¥1,844	+9.1%	¥10M ($64K)
2024-08-07	BUY	Market Buy	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	2.0M	¥1,728	+16.4%	¥494M ($3.2M)
2024-08-07	BUY	Market Buy	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	2.0M	¥1,728	+16.4%	¥494M ($3.2M)
2024-07-29	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	35.5K	¥1,940	+3.7%	¥10M ($67K)
2024-07-29	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	877.0K	¥1,940	-	-
2024-07-29	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	173.2K	¥1,940	-3.7%	¥41M ($268K)
2024-07-29	SELL	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	407.4K	¥1,940	-3.7%	¥399M ($2.6M)
2024-07-29	BUY	negotiated	ファースト・センティア・インベスターズ(香港)リミテッドLimited) First Sentier Investors (Hong Kong	passive	81.3K	¥1,940	-	¥158M ($1.0M)
2024-06-07	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	1.7M	¥2,054	+2.0%	¥615M ($4.0M)
2024-06-07	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	1.7M	¥2,054	+2.0%	¥615M ($4.0M)
2024-04-22	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	764.9K	¥1,766	-13.9%	¥500M ($3.2M)
2024-04-22	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	669.7K	¥1,766	-	-

Showing the 50 most recent of 168 filings.

Frequently asked questions

Who has been buying Osaka Soda Co., Ltd. stock?: 22 distinct investors have filed 64 disclosed large-shareholding filings in Osaka Soda Co., Ltd. (4046), most recently on 2026-04-07. 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 Osaka Soda Co., Ltd. have?: Osaka Soda Co., Ltd. has 64 buy-side and 50 sell-side disclosures on record, covering ¥17.3B ($111.5M) in total reported value, spanning 2021-09-07 to 2026-04-07.
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.