Who has been buying Activia Properties Inc. stock?

23 distinct investors have filed 48 disclosed large-shareholding filings in Activia Properties Inc. (3279), most recently on 2026-02-06. 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 Activia Properties Inc. have?

Activia Properties Inc. has 48 buy-side and 22 sell-side disclosures on record, covering ¥89.1B ($574.7M) in total reported value, spanning 2021-04-21 to 2026-02-06.

Where does StockDrifts get Activia Properties 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.

Activia Properties Inc. 3279

Company

アクティビア・プロパティーズ投資法人　投資証券Activia Properties Inc.

Investors

Buys

Total Value

¥89.1B ($574.7M)

Avg Return

+5.17%

Last Filing

2026-02-06

Activia Properties Inc. (3279) has 48 disclosed large-shareholding filings and 22 disclosed disposals on record, filed by 23 distinct investors. Together those filings cover ¥89.1B ($574.7M) in reported transaction value. The earliest filing StockDrifts holds for Activia Properties Inc. is dated 2021-04-21; the most recent is 2026-02-06. 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 +5.17%, 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
2026-08-05	SELL	Market Buy	ブラックロック・ファンド・アドバイザーズ BlackRock Fund Advisors	passive	35.3K	¥139,600	+0.9%	¥66M ($428K)
2026-08-05	BUY	Market Buy	ブラックロック・インベストメント・マネジメント・エルエルシー BlackRock Investment Management LLC	passive	3.5K	¥139,600	-0.9%	¥488M ($3.1M)
2026-08-05	BUY	Market Buy	ブラックロック・アセット・マネジメント・カナダ・リミテッド BlackRock Asset Management Canada Limited	passive	4.5K	¥139,600	-0.9%	¥631M ($4.1M)
2026-08-05	SELL	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	21.4K	¥139,600	+0.9%	¥166M ($1.1M)
2026-08-05	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	4.6K	¥139,600	-0.9%	¥199M ($1.3M)
2026-08-05	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, N.A.	passive	40.2K	¥139,600	-0.9%	¥3.1B ($19.9M)
2026-08-05	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	10.4K	¥139,600	-0.9%	¥33M ($214K)
2026-08-05	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	5.7K	¥139,600	-0.9%	¥33M ($214K)
2026-08-05	SELL	Market Buy	ブラックロック・フィナンシャル・マネジメント・インク BlackRock Financial Management, Inc.	passive	1.9K	¥139,600	+0.9%	¥100M ($642K)
2026-08-05	BUY	Market Buy	ブラックロック・ジャパン株式会社	passive	57.3K	¥139,600	-0.9%	¥299M ($1.9M)
2026-07-22	SELL	unknown	大和アセットマネジメント株式会社 Daiwa Asset Management Co.Ltd.	other	96.6K	¥142,000	+2.5%	¥3.4B ($22.2M)
2026-06-18	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	3.2K	¥133,100	+5.1%	¥423M ($2.7M)
2026-06-18	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, N.A.	passive	18.2K	¥133,100	+5.1%	¥696M ($4.5M)
2026-06-18	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	36.0K	¥133,100	+5.1%	¥1.1B ($7.3M)
2026-06-18	SELL	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	10.2K	¥133,100	-5.1%	¥285M ($1.8M)
2026-06-18	BUY	Market Buy	ブラックロック・アセット・マネジメント・カナダ・リミテッド BlackRock Asset Management Canada Limited	passive	4.5K	¥133,100	+5.1%	¥95M ($612K)
2026-06-18	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	22.5K	¥133,100	+5.1%	¥791M ($5.1M)
2026-06-18	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	5.5K	¥133,100	+5.1%	¥316M ($2.0M)
2026-06-18	BUY	Market Buy	ブラックロック・フィナンシャル・マネジメント・インク BlackRock Financial Management, Inc.	passive	2.6K	¥133,100	+5.1%	¥344M ($2.2M)
2026-06-18	SELL	Market Buy	ブラックロック・アドバイザーズ・エルエルシー BlackRock Advisers, LLC	passive	316	¥133,100	-5.1%	¥411M ($2.7M)
2026-06-18	BUY	Market Buy	ブラックロック・ジャパン株式会社	passive	55.2K	¥133,100	+5.1%	¥1.2B ($7.6M)
2026-02-06	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	110.2K	¥146,500	+2.8%	¥3.8B ($24.7M)
2025-12-15	SELL	Market Buy	三菱UFJモルガン・スタンレー証券株式会社	other	7.0K	¥140,600	-1.3%	¥998M ($6.4M)
2025-12-15	BUY	Market Buy	三菱UFJアセットマネジメント株式会社	passive	91.2K	¥140,600	+1.3%	¥13.0B ($83.7M)
2025-12-15	BUY	Market Buy	三菱UFJ信託銀行株式会社	passive	25.7K	¥140,600	-1.3%	¥3.7B ($23.7M)
2025-12-01	BUY	Market Buy	三菱UFJモルガン・スタンレー証券株式会社	other	32.6K	¥140,800	+1.1%	¥4.6B ($30.0M)
2025-12-01	BUY	Market Buy	三菱UFJアセットマネジメント株式会社	passive	89.8K	¥140,800	+1.1%	¥12.8B ($82.5M)
2025-12-01	BUY	Market Buy	三菱UFJ信託銀行株式会社	passive	25.5K	¥140,800	+1.1%	¥3.6B ($23.5M)
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	58.2K	¥135,000	-5.5%	¥321M ($2.1M)
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	150.7K	¥135,000	+5.5%	¥449M ($2.9M)
2025-07-03	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	136.3K	¥124,200	+14.7%	¥207M ($1.3M)
2025-07-03	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.6K	¥124,200	-14.7%	¥17.7B ($114.2M)
2025-06-30	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	24.2K	¥122,700	+16.1%	¥3.0B ($19.2M)
2025-06-30	BUY	Market Buy	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	7.7K	¥122,700	+16.1%	¥949M ($6.1M)
2025-06-30	BUY	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	88.8K	¥122,700	+16.1%	¥10.9B ($70.3M)
2025-06-18	BUY	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	134.8K	¥121,500	+17.2%	¥2.4B ($15.3M)
2025-06-18	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	3.0K	¥121,500	+17.2%	¥87M ($559K)
2025-06-18	SELL	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	1.8K	¥121,500	-17.2%	¥5.8B ($37.3M)
2025-06-16	SELL	Market Buy	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	2.9K	¥120,500	-18.2%	¥3.7B ($24.0M)
2025-06-16	BUY	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	88.4K	¥120,500	+18.2%	¥86M ($554K)
2025-06-16	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	24.0K	¥120,500	+18.2%	¥86M ($554K)
2025-06-04	BUY	Market Buy	東急不動産株式会社 Tokyu Land Corporation	other	297.9K	¥118,000	+20.7%	¥2.8B ($18.3M)
2025-06-02	SELL	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	29.2K	¥116,700	-22.0%	¥28M ($179K)
2025-06-02	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	7.8K	¥116,700	+22.0%	¥5.5B ($35.8M)
2025-06-02	BUY	Market Buy	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	11.2K	¥116,700	+22.0%	¥971M ($6.3M)
2025-03-17	BUY	Market Buy	東急不動産株式会社 Tokyu Land Corporation	other	91.4K	¥111,666.56	+27.5%	¥893M ($5.8M)
2025-02-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	20.2K	¥112,666.55	+26.4%	¥9M ($58K)
2025-02-06	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	49.1K	¥112,666.55	-26.4%	¥982M ($6.3M)
2024-08-20	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	20.1K	¥115,333.22	-23.5%	¥164M ($1.1M)
2024-08-20	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	57.9K	¥115,333.22	-23.5%	¥767M ($5.0M)

Showing the 50 most recent of 105 filings.

Frequently asked questions

Who has been buying Activia Properties Inc. stock?: 23 distinct investors have filed 48 disclosed large-shareholding filings in Activia Properties Inc. (3279), most recently on 2026-02-06. 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 Activia Properties Inc. have?: Activia Properties Inc. has 48 buy-side and 22 sell-side disclosures on record, covering ¥89.1B ($574.7M) in total reported value, spanning 2021-04-21 to 2026-02-06.
Where does StockDrifts get Activia Properties 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 Activia Properties Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.