Who has been buying ASIRO Inc. stock?

6 distinct investors have filed 35 disclosed large-shareholding filings in ASIRO Inc. (7378), most recently on 2026-03-26. 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 ASIRO Inc. have?

ASIRO Inc. has 35 buy-side and 17 sell-side disclosures on record, covering ¥3.8B ($24.6M) in total reported value, spanning 2021-07-20 to 2026-03-26.

Where does StockDrifts get ASIRO 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.

ASIRO Inc. 7378

Company

株式会社アシロASIRO Inc.

Investors

Buys

Total Value

¥3.8B ($24.6M)

Avg Return

+72.82%

Last Filing

2026-03-26

ASIRO Inc. (7378) has 35 disclosed large-shareholding filings and 17 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥3.8B ($24.6M) in reported transaction value. The earliest filing StockDrifts holds for ASIRO Inc. is dated 2021-07-20; the most recent is 2026-03-26. 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 +72.82%, 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
2026-03-26	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	2.6M	¥2,010	+0.8%	¥160M ($1.0M)
2026-03-19	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	2.5M	¥1,988	+2.0%	¥161M ($1.0M)
2026-03-03	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	2.4M	¥2,085	-2.8%	¥160M ($1.0M)
2026-02-25	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	2.4M	¥2,000	+1.4%	¥148M ($952K)
2026-02-24	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	2.3M	¥1,985	+2.1%	¥180M ($1.2M)
2026-02-13	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	2.2M	¥1,763	+15.0%	¥177M ($1.1M)
2026-02-02	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	2.1M	¥1,777	+14.1%	¥136M ($880K)
2026-01-29	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	2.0M	¥1,960	+3.4%	¥146M ($943K)
2026-01-26	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.9M	¥1,912	+6.0%	¥155M ($1.0M)
2026-01-22	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.9M	¥1,838	+10.3%	¥145M ($936K)
2026-01-20	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.8M	¥1,816	+11.6%	¥182M ($1.2M)
2026-01-16	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.7M	¥1,814	+11.7%	¥232M ($1.5M)
2026-01-14	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.6M	¥1,719	+17.9%	¥137M ($884K)
2026-01-09	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.5M	¥1,680	+20.6%	¥131M ($848K)
2026-01-07	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.4M	¥1,561	+29.9%	¥218M ($1.4M)
2026-01-06	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.3M	¥1,520	+33.4%	¥321M ($2.1M)
2026-01-05	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.0M	¥1,500	+35.1%	¥307M ($2.0M)
2025-12-25	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	845.3K	¥1,514	+33.9%	¥174M ($1.1M)
2025-12-23	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	729.7K	¥1,516	+33.7%	¥161M ($1.0M)
2025-12-22	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	623.7K	¥1,462	+38.6%	¥180M ($1.2M)
2025-12-19	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	500.4K	¥1,396	+45.2%	¥699M ($4.5M)
2025-05-27	SELL	unknown	中山博登 Hiroto Nakayama	activist	128.3K	¥2,018	-0.5%	¥3.3B ($21.1M)
2025-05-27	BUY	unknown	中山博登 Hiroto Nakayama	activist	2.0M	¥2,018	+0.5%	¥436M ($2.8M)
2025-01-06	SELL	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	325.6K	¥1,735	-16.8%	¥156M ($1.0M)
2024-12-27	SELL	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	415.5K	¥1,605	-26.3%	¥120M ($772K)
2024-12-25	SELL	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	490.3K	¥1,689	-20.0%	¥186M ($1.2M)
2024-12-24	SELL	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	600.4K	¥1,716	-18.1%	¥545M ($3.5M)
2024-12-10	SELL	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	913.6K	¥1,164	-74.1%	¥108M ($696K)
2024-12-02	SELL	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	1.0M	¥1,150	-76.3%	¥105M ($676K)
2024-11-21	SELL	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	1.1M	¥1,046	-93.8%	¥99M ($640K)
2024-10-03	SELL	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	1.2M	¥1,079	-87.9%	¥82M ($532K)
2024-09-26	BUY	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	1.3M	¥1,047	+93.6%	¥95M ($611K)
2024-09-26	SELL	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	1.3M	¥1,047	-93.6%	¥95M ($611K)
2024-09-18	BUY	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	1.4M	¥1,004	+101.9%	¥12M ($76K)
2024-09-18	BUY	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	1.4M	¥1,004	+101.9%	¥12M ($76K)
2024-08-07	BUY	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	1.3M	¥759	+167.1%	¥58M ($374K)
2024-08-07	BUY	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	1.3M	¥759	+167.1%	¥58M ($374K)
2024-06-05	BUY	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	1.3M	¥746	+171.7%	¥55M ($354K)
2024-04-26	BUY	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド(Gordian Capital Singapore Private Limited) Gordian Capital Singapore Private Limited	passive	1.2M	¥737	+175.0%	¥61M ($395K)
2024-03-26	BUY	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド Gordian Capital Singapore Private Limited	passive	1.1M	¥716	+183.1%	¥100M ($645K)
2023-02-08	SELL	unknown	中山博登 Nakayama Hiroto	activist	1.8M	¥698	-190.4%	¥28M ($182K)
2023-01-17	BUY	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド Gordian Capital Singapore Private Limited	passive	1.0M	¥650	+211.8%	¥200M ($1.3M)
2022-12-21	BUY	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド Gordian Capital Singapore Private Limited	passive	637.3K	¥620	+226.9%	¥76M ($488K)
2022-12-20	BUY	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド Gordian Capital Singapore Private Limited	passive	514.9K	¥637	+218.2%	¥53M ($341K)
2022-12-15	BUY	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド Gordian Capital Singapore Private Limited	passive	432.0K	¥893	+127.0%	¥72M ($462K)
2022-12-13	BUY	Market Buy	ゴーディアン・キャピタル・シンガポール・プライベート・リミテッド Gordian Capital Singapore Private Limited	passive	351.8K	¥809	+150.6%	¥285M ($1.8M)
2022-10-04	SELL	unknown	J-STAR株式会社 J-STAR Co., Ltd.	other	322.8K	¥832	-143.6%	¥159M ($1.0M)
2022-10-04	BUY	unknown	J-STAR株式会社 J-STAR Co., Ltd.	other	322.8K	¥832	+143.6%	¥159M ($1.0M)
2022-09-07	SELL	unknown	中山博登 Nakayama Hiroto	activist	1.8M	¥845	-139.9%	¥9M ($60K)
2022-09-07	BUY	unknown	中山博登 Nakayama Hiroto	activist	1.8M	¥845	+139.9%	¥1.6B ($10.0M)

Showing the 50 most recent of 58 filings.

Frequently asked questions

Who has been buying ASIRO Inc. stock?: 6 distinct investors have filed 35 disclosed large-shareholding filings in ASIRO Inc. (7378), most recently on 2026-03-26. 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 ASIRO Inc. have?: ASIRO Inc. has 35 buy-side and 17 sell-side disclosures on record, covering ¥3.8B ($24.6M) in total reported value, spanning 2021-07-20 to 2026-03-26.
Where does StockDrifts get ASIRO 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 ASIRO Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.