Who has been buying MS&AD Insurance Group Holdings, Inc. stock?

23 distinct investors have filed 18 disclosed large-shareholding filings in MS&AD Insurance Group Holdings, Inc. (8725), most recently on 2025-12-22. 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 MS&AD Insurance Group Holdings, Inc. have?

MS&AD Insurance Group Holdings, Inc. has 18 buy-side and 9 sell-side disclosures on record, covering ¥107.5B ($693.8M) in total reported value, spanning 2022-04-18 to 2025-12-22.

Where does StockDrifts get MS&AD Insurance Group Holdings, Inc. 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.

MS&AD Insurance Group Holdings, Inc. 8725

Company

MS&ADインシュアランスグループホールディングス株式会社MS&AD Insurance Group Holdings, Inc.

Investors

Buys

Total Value

¥107.5B ($693.8M)

Avg Return

+154.27%

Last Filing

2025-12-22

MS&AD Insurance Group Holdings, Inc. (8725) has 18 disclosed large-shareholding filings and 9 disclosed disposals on record, filed by 23 distinct investors. Together those filings cover ¥107.5B ($693.8M) in reported transaction value. The earliest filing StockDrifts holds for MS&AD Insurance Group Holdings, Inc. is dated 2022-04-18; the most recent is 2025-12-22. 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 +154.27%, 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
2026-07-07	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	75.7M	¥4,534	+5.4%	¥343.4B ($2.2B)
2026-05-22	BUY	Market Buy	大樹生命保険株式会社	passive	3.1M	¥4,245	+7.2%	¥13.1B ($84.3M)
2026-05-22	SELL	unknown	ニッセイアセットマネジメント株式会社	other	1.4M	¥4,245	-7.2%	¥1.3B ($8.2M)
2026-05-22	BUY	Market Buy	日本生命保険相互会社	passive	109.0M	¥4,245	+7.2%	¥462.7B ($3.0B)
2025-12-22	BUY	Market Buy	大樹生命保険株式会社	passive	3.1M	¥3,724	-8.1%	¥12.3B ($79.5M)
2025-12-22	BUY	Market Buy	ニッセイアセットマネジメント株式会社	other	1.6M	¥3,724	+8.1%	¥6.3B ($40.8M)
2025-12-22	BUY	Market Buy	日本生命保険相互会社	passive	109.0M	¥3,724	-8.1%	¥439.0B ($2.8B)
2025-12-05	BUY	Market Buy	大樹生命保険株式会社	passive	3.1M	¥3,520	+14.4%	¥12.3B ($79.5M)
2025-12-05	BUY	Market Buy	ニッセイアセットマネジメント株式会社	other	1.6M	¥3,520	-14.4%	¥6.3B ($40.5M)
2025-12-05	BUY	Market Buy	日本生命保険相互会社	passive	109.0M	¥3,520	+14.4%	¥439.0B ($2.8B)
2025-10-30	SELL	negotiated	トヨタ自動車株式会社 TOYOTA MOTOR CORPORATION	strategic	70.4M	¥3,204	-25.7%	¥112.3B ($724.8M)
2025-09-05	BUY	Market Buy	大樹生命保険株式会社 Taiki Life Insurance Co., Ltd.	passive	3.1M	¥3,496	+15.2%	¥10.7B ($69.0M)
2025-09-05	SELL	Market Buy	ニッセイアセットマネジメント株式会社 Nissay Asset Management Company	other	1.6M	¥3,496	-15.2%	¥562M ($3.6M)
2025-09-05	SELL	Market Buy	日本生命保険相互会社 Nippon Life Insurance Company	passive	109.1M	¥3,496	-15.2%	¥562M ($3.6M)
2024-09-20	SELL	negotiated	トヨタ自動車株式会社 TOYOTA MOTOR CORPORATION	strategic	105.6M	¥3,338	-20.6%	¥174.5B ($1.1B)
2024-08-30	BUY	Market Buy	トヨタ自動車株式会社 TOYOTA MOTOR CORPORATION	strategic	157.8M	¥3,345	+20.4%	¥80.7B ($520.7M)
2024-02-22	BUY	Market Buy	大樹生命保険株式会社 Taiki Life Insurance Co., Ltd.	passive	1.0M	¥2,398.33	+67.9%	¥2.5B ($15.9M)
2024-02-22	BUY	Market Buy	ニッセイアセットマネジメント株式会社 Nissay Asset Management Company	other	594.6K	¥2,398.33	+67.9%	¥129M ($829K)
2024-02-22	BUY	Market Buy	日本生命保険相互会社 Nippon Life Insurance Company	passive	36.4M	¥2,398.33	+67.9%	¥87.2B ($562.9M)
2023-12-22	BUY	Market Buy	大樹生命保険株式会社 Taiki Life Insurance Co., Ltd.	passive	1.0M	¥1,778.33	+126.4%	¥95M ($615K)
2023-12-22	SELL	Market Buy	ニッセイアセットマネジメント株式会社 Nissay Asset Management Company	other	526.9K	¥1,778.33	-126.4%	¥381M ($2.5M)
2023-12-22	BUY	Market Buy	日本生命保険相互会社 Nippon Life Insurance Company	passive	36.4M	¥1,778.33	+126.4%	¥6.0B ($38.7M)
2023-08-04	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	7.8M	¥1,673.33	-140.6%	¥1.3B ($8.7M)
2023-08-04	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	14.0M	¥1,673.33	-140.6%	¥7.7B ($49.8M)
2022-12-05	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	1.5M	¥1,264.67	+218.3%	¥1.9B ($12.1M)
2022-12-05	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	2.0M	¥1,264.67	+218.3%	¥2.5B ($16.2M)
2022-12-05	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	730.2K	¥1,264.67	+218.3%	¥923M ($6.0M)
2022-12-05	BUY	Market Buy	ブラックロック(ルクセンブルグ)エス・エーS.A.) BlackRock (Luxembourg	passive	337.8K	¥1,264.67	+218.3%	¥388M ($2.5M)
2022-12-05	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 BlackRock Institutional Trust Company, N.A.	passive	6.9M	¥1,264.67	+218.3%	¥5M ($35K)
2022-12-05	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	9.1M	¥1,264.67	+218.3%	¥60M ($385K)
2022-12-05	BUY	Market Buy	ブラックロック・アドバイザーズリミテッドLimited) UK	passive	52.7K	¥1,264.67	+218.3%	¥58M ($372K)
2022-12-05	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	3.9M	¥1,264.67	+218.3%	¥25M ($162K)
2022-12-05	BUY	Market Buy	ブラックロック・ライフ・リミテッド BlackRock Life Limited	passive	230.9K	¥1,264.67	+218.3%	¥255M ($1.6M)
2022-12-05	SELL	Market Buy	ブラックロック・インベストメント・マネジメント・エルエルシー BlackRock Investment Management LLC	passive	426.0K	¥1,264.67	-218.3%	¥4M ($26K)
2022-12-05	BUY	Market Buy	ブラックロック・アドバイザーズ・エルエルシー(BlackRock Advisers BlackRock Advisers, LLC	passive	315.9K	¥1,264.67	+218.3%	¥357M ($2.3M)
2022-12-05	BUY	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	8.6M	¥1,264.67	+218.3%	¥34M ($219K)
2022-04-18	BUY	unknown	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	158.0K	¥1,268.33	+217.4%	¥21.5B ($138.9M)
2022-04-18	BUY	unknown	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	4.4M	¥1,268.33	+217.4%	¥2.0B ($13.1M)
2022-04-18	BUY	unknown	MUFGセキュリティーズEMEA MUFG Securities EMEA plc	other	1.0M	¥1,268.33	+217.4%	¥1.3B ($8.2M)
2022-04-18	BUY	unknown	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	21.2M	¥1,268.33	+217.4%	¥26.5B ($171.2M)
2022-04-18	SELL	unknown	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	unknown	0	¥1,268.33	-217.4%	¥1.2B ($7.8M)

Frequently asked questions

Who has been buying MS&AD Insurance Group Holdings, Inc. stock?: 23 distinct investors have filed 18 disclosed large-shareholding filings in MS&AD Insurance Group Holdings, Inc. (8725), most recently on 2025-12-22. 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 MS&AD Insurance Group Holdings, Inc. have?: MS&AD Insurance Group Holdings, Inc. has 18 buy-side and 9 sell-side disclosures on record, covering ¥107.5B ($693.8M) in total reported value, spanning 2022-04-18 to 2025-12-22.
Where does StockDrifts get MS&AD Insurance Group Holdings, Inc. 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 MS&AD Insurance Group Holdings, Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.