Who has been buying MicroAd, Inc. stock?

8 distinct investors have filed 15 disclosed large-shareholding filings in MicroAd, Inc. (9553), most recently on 2024-08-07. 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 MicroAd, Inc. have?

MicroAd, Inc. has 15 buy-side and 15 sell-side disclosures on record, covering ¥2.8B ($17.9M) in total reported value, spanning 2022-06-30 to 2024-08-07.

Where does StockDrifts get MicroAd, 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.

MicroAd, Inc. 9553

Company

株式会社マイクロアドMicroAd, Inc.

Investors

Buys

Total Value

¥2.8B ($17.9M)

Avg Return

+55.09%

Last Filing

2024-08-07

MicroAd, Inc. (9553) has 15 disclosed large-shareholding filings and 15 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥2.8B ($17.9M) in reported transaction value. The earliest filing StockDrifts holds for MicroAd, Inc. is dated 2022-06-30; the most recent is 2024-08-07. 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 +55.09%, 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
2026-08-10	BUY	private	アリーナ・ホールディングス・マネジメント・エルエルシー(ARENA HOLDINGS MANAGEMENT LLC) ARENA HOLDINGS MANAGEMENT LLC	passive	3.6M	¥615	+5.8%	¥2.2B ($14.2M)
2026-07-23	SELL	unknown	株式会社サイバーエージェント CyberAgent, Inc.	other	12.3M	¥596	-9.2%	¥926M ($6.0M)
2024-08-07	BUY	unknown	渡辺健太郎 WATANABE KENTARO	activist	459.1K	¥270	+209.6%	¥124M ($800K)
2024-08-07	BUY	unknown	株式会社SWAY SWAY Co., Ltd.	activist	1.7M	¥270	+209.6%	¥462M ($3.0M)
2024-05-22	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.2M	¥440	+90.0%	¥4M ($23K)
2024-05-22	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	60.4K	¥440	-90.0%	¥63M ($407K)
2024-01-24	SELL	Market Buy	株式会社SWAY SWAY Co., Ltd.	activist	1.7M	¥626	-33.5%	¥2M ($11K)
2024-01-24	BUY	Market Buy	渡辺健太郎 WATANABE KENTARO	activist	459.1K	¥626	+33.5%	¥5M ($33K)
2023-12-22	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.2M	¥624	+34.0%	¥749M ($4.8M)
2023-12-22	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	202.5K	¥624	+34.0%	¥126M ($815K)
2023-09-25	SELL	unknown	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.	unknown	0	¥769.67	-8.6%	¥9M ($59K)
2023-09-25	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	282.4K	¥769.67	+8.6%	¥214M ($1.4M)
2023-09-25	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	62.6K	¥769.67	-8.6%	¥12M ($77K)
2023-09-21	SELL	unknown	株式会社SWAY SWAY Co., Ltd.	activist	570.0K	¥714.33	-17.0%	¥8M ($51K)
2023-09-21	SELL	unknown	渡辺健太郎 WATANABE KENTARO	activist	150.0K	¥714.33	-17.0%	¥1M ($8K)
2023-08-07	BUY	unknown	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	11.9K	¥1,820	-54.1%	¥22M ($140K)
2023-08-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	381.5K	¥1,820	-54.1%	¥694M ($4.5M)
2023-08-07	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	77.6K	¥1,820	-54.1%	¥141M ($911K)
2023-04-28	SELL	unknown	株式会社SWAY SWAY Co., Ltd.	activist	570.0K	¥1,161.67	+28.0%	¥1M ($7K)
2023-04-28	SELL	unknown	渡辺健太郎 WATANABE KENTARO	activist	150.0K	¥1,161.67	+28.0%	¥1M ($7K)
2023-02-22	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	348.6K	¥765.33	-9.2%	¥118M ($762K)
2023-02-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	502.6K	¥509.33	-64.1%	¥64M ($410K)
2023-02-03	SELL	negotiated	ソフトバンク株式会社 SoftBank Corp.	strategic	407.5K	¥491.33	-70.2%	¥200M ($1.3M)
2023-01-20	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	627.1K	¥531.67	-57.2%	¥17M ($111K)
2023-01-19	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	55.8K	¥537	+55.7%	¥28M ($178K)
2023-01-16	SELL	unknown	株式会社SWAY SWAY Co., Ltd.	activist	570.0K	¥543.33	-53.9%	¥2M ($13K)
2023-01-16	BUY	unknown	株式会社SWAY SWAY Co., Ltd.	activist	570.0K	¥543.33	+53.9%	¥310M ($2.0M)
2023-01-16	SELL	unknown	渡辺健太郎 WATANABE KENTARO	activist	150.0K	¥543.33	-53.9%	¥488K ($3K)
2023-01-16	BUY	unknown	渡辺健太郎 WATANABE KENTARO	activist	150.0K	¥543.33	+53.9%	¥81M ($526K)
2023-01-11	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	655.6K	¥507.67	-64.7%	¥76M ($491K)
2023-01-10	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	472.6K	¥485.67	+72.1%	¥230M ($1.5M)
2022-12-22	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	805.6K	¥629.33	+32.8%	¥507M ($3.3M)
2022-12-20	BUY	negotiated	ソフトバンク株式会社 SoftBank Corp.	strategic	815.0K	¥604	+38.4%	¥492M ($3.2M)
2022-12-20	BUY	negotiated	ソフトバンク株式会社 SoftBank Corp.	strategic	815.0K	¥604	+38.4%	¥492M ($3.2M)
2022-07-08	BUY	unknown	株式会社サイバーエージェント CyberAgent,Inc.	other	4.5M	¥295	+183.4%	¥1.3B ($8.5M)
2022-07-01	BUY	subscription	株式会社SWAY SWAY Co., Ltd.	activist	570.0K	¥333	+151.1%	¥190M ($1.2M)
2022-07-01	BUY	subscription	渡辺健太郎 WATANABE KENTARO	activist	150.0K	¥333	+151.1%	¥50M ($322K)
2022-06-30	BUY	negotiated	ソフトバンク株式会社 SoftBank Corp.	strategic	815.0K	¥345	+142.3%	¥281M ($1.8M)
2022-06-30	BUY	negotiated	ソフトバンク株式会社 SoftBank Corp.	strategic	815.0K	¥345	+142.3%	¥281M ($1.8M)

Frequently asked questions

Who has been buying MicroAd, Inc. stock?: 8 distinct investors have filed 15 disclosed large-shareholding filings in MicroAd, Inc. (9553), most recently on 2024-08-07. 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 MicroAd, Inc. have?: MicroAd, Inc. has 15 buy-side and 15 sell-side disclosures on record, covering ¥2.8B ($17.9M) in total reported value, spanning 2022-06-30 to 2024-08-07.
Where does StockDrifts get MicroAd, 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 MicroAd, Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.