Who has been buying Sanwa Holdings Corporation stock?

20 distinct investors have filed 23 disclosed large-shareholding filings in Sanwa Holdings Corporation (5929), most recently on 2026-05-08. 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 Sanwa Holdings Corporation have?

Sanwa Holdings Corporation has 23 buy-side and 10 sell-side disclosures on record, covering ¥81.8B ($527.7M) in total reported value, spanning 2021-04-22 to 2026-05-08.

Where does StockDrifts get Sanwa Holdings Corporation 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.

Sanwa Holdings Corporation 5929

Company

三和ホールディングス株式会社Sanwa Holdings Corporation

Investors

Buys

Total Value

¥81.8B ($527.7M)

Avg Return

+51.61%

Last Filing

2026-05-08

Sanwa Holdings Corporation (5929) has 23 disclosed large-shareholding filings and 10 disclosed disposals on record, filed by 20 distinct investors. Together those filings cover ¥81.8B ($527.7M) in reported transaction value. The earliest filing StockDrifts holds for Sanwa Holdings Corporation is dated 2021-04-22; the most recent is 2026-05-08. 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 +51.61%, 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
2026-05-28	BUY	Market Buy	バリューアクト・ジャパン・マスター・ファンド・エルピー ValueAct Japan Master Fund, L.P.	activist	7.6M	¥3,475	+7.3%	¥2.5B ($15.9M)
2026-05-28	BUY	Market Buy	バリューアクト・キャピタル・マスター・ファンド・エルピー ValueAct Capital Master Fund, L.P.	activist	9.1M	¥3,475	+7.3%	¥9.8B ($63.4M)
2026-05-28	BUY	unknown	バリューアクト・キャピタル・マネジメント・エルピー ValueAct Capital Management, L.P.	activist	0	¥3,475	+7.3%	-
2026-05-28	BUY	Market Buy	バリューアクト・ジャパン・マスター・ファンド・エルピー ValueAct Japan Master Fund, L.P.	activist	7.6M	¥3,475	+7.3%	¥2.5B ($15.9M)
2026-05-28	BUY	Market Buy	バリューアクト・キャピタル・マスター・ファンド・エルピー ValueAct Capital Master Fund, L.P.	activist	9.1M	¥3,475	+7.3%	¥9.8B ($63.4M)
2026-05-28	BUY	unknown	バリューアクト・キャピタル・マネジメント・エルピー ValueAct Capital Management, L.P.	activist	0	¥3,475	+7.3%	-
2026-05-08	SELL	Market Buy	三菱UFJアセットマネジメント株式会社	passive	1.9M	¥3,643	+2.9%	¥564M ($3.6M)
2026-05-08	SELL	Market Buy	三菱UFJ信託銀行株式会社	passive	6.0M	¥3,643	+2.9%	¥6.4B ($41.6M)
2026-05-08	SELL	negotiated	株式会社三菱UFJ銀行	strategic	846.2K	¥3,643	+2.9%	¥1.4B ($8.8M)
2026-01-06	BUY	Market Buy	ブラックロック・インベストメント・マネジメント(ユーケー)リミテッドLimited) BlackRock Investment Management (UK	passive	1.5M	¥4,183	-12.4%	¥5.5B ($35.5M)
2026-01-06	BUY	Market Buy	ブラックロック・インスティテューショナル・トラスト・カンパニー、エヌ.エイ.(BlackRock Institutional Trust Company	passive	1.8M	¥4,183	-12.4%	¥6.7B ($43.1M)
2026-01-06	BUY	Market Buy	ブラックロック・ファンド・アドバイザーズ BlackRock Fund Advisors	passive	2.8M	¥4,183	-12.4%	¥10.3B ($66.5M)
2026-01-06	BUY	Market Buy	ブラックロック・アセット・マネジメント・アイルランド・リミテッド BlackRock Asset Management Ireland Limited	passive	505.6K	¥4,183	-12.4%	¥1.9B ($11.9M)
2026-01-06	BUY	Market Buy	ブラックロック・ファンド・マネジャーズ・リミテッド BlackRock Fund Managers Limited	passive	297.3K	¥4,183	-12.4%	¥1.1B ($7.0M)
2026-01-06	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	422.1K	¥4,183	-12.4%	¥1.5B ($10.0M)
2026-01-06	BUY	Market Buy	ブラックロック・ジャパン株式会社	passive	3.7M	¥4,183	-12.4%	¥13.6B ($88.0M)
2025-09-05	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	714.8K	¥4,781	-23.4%	¥3.4B ($22.0M)
2025-09-05	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	10.9M	¥4,781	-23.4%	¥1.4B ($8.9M)
2025-09-05	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	6.9M	¥4,781	-23.4%	¥7.5B ($48.4M)
2024-09-25	BUY	acquisition	バリューアクト・ジャパン・マスター・ファンド・エルピー(ValueAct Japan Master Fund ValueAct Japan Master Fund LP	activist	7.1M	¥3,466	+5.7%	¥24.6B ($158.8M)
2024-09-25	BUY	acquisition	バリューアクト・キャピタル・マスター・ファンド・エルピー(ValueAct Capital Master Fund ValueAct Capital Master Fund LP	activist	6.5M	¥3,466	+5.7%	¥22.6B ($145.7M)
2024-09-25	BUY	acquisition	バリューアクト・キャピタル・マネジメント・エルピー(ValueAct Capital Management ValueAct Capital Management	activist	0	¥3,466	+5.7%	-
2024-06-10	SELL	negotiated	ダルトン・インベストメンツ・インク(Dalton Investments, Inc.) Dalton Investments, Inc.	activist	10.5M	¥2,969.5	-23.4%	¥6.8B ($43.9M)
2024-06-06	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	5.1M	¥2,825.5	-29.6%	¥3.7B ($23.8M)
2024-06-06	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	4.1M	¥2,825.5	-29.6%	¥3.0B ($19.6M)
2024-03-04	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	2.2M	¥2,566.5	+42.7%	¥5.6B ($36.4M)
2024-03-04	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	8.1M	¥2,566.5	+42.7%	¥20.8B ($134.0M)
2024-03-04	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.3M	¥2,566.5	+42.7%	¥3.2B ($20.9M)
2024-02-19	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	2.2M	¥2,656	+37.9%	¥1.5B ($9.9M)
2024-02-19	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	7.4M	¥2,656	-37.9%	¥6.3B ($40.4M)
2024-02-19	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.3M	¥2,656	-37.9%	¥614M ($4.0M)
2024-02-08	SELL	negotiated	ダルトン・インベストメンツ・インク(Dalton Investments, Inc.) Dalton Investments, Inc.	activist	12.9M	¥2,391	-53.2%	¥55M ($356K)
2024-01-11	BUY	negotiated	ダルトン・インベストメンツ・インク(Dalton Investments Dalton Investments, Inc.	activist	12.9M	¥2,210	+65.8%	¥28.6B ($184.3M)
2024-01-11	SELL	negotiated	ダルトン・インベストメンツ・エルエルシー Dalton Investments LLC	activist	0	¥2,210	-65.8%	¥25.6B ($165.0M)
2023-07-31	BUY	acquisition	ダルトン・インベストメンツ・エルエルシー(Dalton Investments LLC) Dalton Investments LLC	activist	11.6M	¥1,932	+89.6%	¥22.4B ($144.2M)
2022-07-07	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	11.0M	¥1,302	+181.3%	¥14.4B ($92.7M)
2022-07-07	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	5.6M	¥1,302	+181.3%	¥3.4B ($22.1M)
2022-07-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	55.0K	¥1,302	+181.3%	¥5.7B ($36.9M)
2021-11-05	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	5.2M	¥1,293	+183.3%	¥6.8B ($43.8M)
2021-11-05	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	6.5M	¥1,293	+183.3%	¥8.4B ($54.1M)
2021-04-22	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	235.2K	¥1,412	+159.4%	¥332M ($2.1M)
2021-04-22	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	11.0M	¥1,412	+159.4%	¥163M ($1.1M)
2021-04-22	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	2.9M	¥1,412	+159.4%	¥3.0B ($19.4M)

Frequently asked questions

Who has been buying Sanwa Holdings Corporation stock?: 20 distinct investors have filed 23 disclosed large-shareholding filings in Sanwa Holdings Corporation (5929), most recently on 2026-05-08. 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 Sanwa Holdings Corporation have?: Sanwa Holdings Corporation has 23 buy-side and 10 sell-side disclosures on record, covering ¥81.8B ($527.7M) in total reported value, spanning 2021-04-22 to 2026-05-08.
Where does StockDrifts get Sanwa Holdings Corporation 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 Sanwa Holdings Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.