Who has been buying AltPlus Inc. stock?

10 distinct investors have filed 19 disclosed large-shareholding filings in AltPlus Inc. (3672), most recently on 2026-05-13. 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 AltPlus Inc. have?

AltPlus Inc. has 19 buy-side and 60 sell-side disclosures on record, covering ¥8.2B ($53.0M) in total reported value, spanning 2022-11-11 to 2026-05-13.

Where does StockDrifts get AltPlus 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.

AltPlus Inc. 3672

Company

株式会社オルトプラスAltPlus Inc.

Investors

Buys

Total Value

¥8.2B ($53.0M)

Avg Return

-42.93%

Last Filing

2026-05-13

AltPlus Inc. (3672) has 19 disclosed large-shareholding filings and 60 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥8.2B ($53.0M) in reported transaction value. The earliest filing StockDrifts holds for AltPlus Inc. is dated 2022-11-11; the most recent is 2026-05-13. 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 -42.93%, 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
2026-07-02	BUY	Market Buy	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥28	-3.6%	-
2026-07-02	SELL	private	エボファンド Evo Fund	activist	61.9M	¥28	+3.6%	¥5M ($29K)
2026-06-02	BUY	Market Buy	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥29	-13.8%	-
2026-06-02	SELL	private	エボファンド Evo Fund	activist	62.1M	¥29	+13.8%	¥28M ($179K)
2026-05-13	BUY	Market Buy	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥35	-17.1%	-
2026-05-13	SELL	private	エボファンド Evo Fund	activist	63.7M	¥35	+17.1%	¥3M ($18K)
2026-05-07	BUY	Market Buy	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥36	-19.4%	-
2026-05-07	SELL	private	エボファンド Evo Fund	activist	63.9M	¥36	+19.4%	¥49M ($315K)
2026-04-20	BUY	private	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥41	-21.9%	-
2026-04-20	SELL	private	エボファンド Evo Fund	activist	66.2M	¥41	+21.9%	¥38M ($248K)
2026-04-10	BUY	private	トラストアップ株式会社 Trust Up Co., Ltd.	passive	108.2M	¥39	-7.7%	¥4.2B ($27.2M)
2026-04-08	BUY	unknown	ジーイエット株式会社 Gyet Co., Ltd.	strategic	21.4M	¥40	-10.0%	¥858M ($5.5M)
2026-04-08	BUY	private	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥40	-10.0%	-
2026-04-08	BUY	private	エボファンド Evo Fund	activist	67.8M	¥40	-10.0%	¥149M ($962K)
2026-04-08	BUY	unknown	ジーイエット株式会社 Gyet Co., Ltd.	strategic	21.4M	¥40	-10.0%	¥858M ($5.5M)
2026-04-07	SELL	private	エボファンド Evo Fund	activist	61.3M	¥39	+10.3%	¥172M ($1.1M)
2026-04-07	BUY	private	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥39	-10.3%	-
2026-04-06	SELL	private	トラストアップ株式会社 Trust Up Co., Ltd.	passive	100.2M	¥40	+12.5%	¥529M ($3.4M)
2026-04-06	BUY	private	トラストアップ株式会社 Trust Up Co., Ltd.	passive	108.2M	¥40	-12.5%	¥507M ($3.3M)
2026-03-09	BUY	private	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥41	+0.0%	-
2026-03-09	SELL	private	エボファンド Evo Fund	activist	69.0M	¥41	+0.0%	¥2.8B ($18.2M)
2026-02-24	BUY	private	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥43	+4.7%	-
2026-02-24	SELL	private	エボファンド Evo Fund	activist	70.6M	¥43	+4.7%	¥2.9B ($18.7M)
2026-02-18	BUY	private	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥47	+12.8%	-
2026-02-18	SELL	private	エボファンド Evo Fund	activist	72.1M	¥47	+12.8%	¥3.0B ($19.1M)
2026-02-02	BUY	Market Buy	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥49	+16.3%	-
2026-02-02	SELL	Market Buy	エボファンド Evo Fund	activist	73.2M	¥49	+16.3%	¥3.0B ($19.4M)
2026-01-21	BUY	Market Buy	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥52	+21.2%	-
2026-01-21	SELL	Market Buy	エボファンド Evo Fund	activist	74.8M	¥52	+21.2%	¥3.1B ($19.8M)
2026-01-09	BUY	Market Buy	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥55	+25.5%	-
2026-01-09	BUY	Market Buy	エボファンド Evo Fund	activist	76.3M	¥55	-25.5%	¥3.1B ($20.2M)
2026-01-07	BUY	private	トラストアップ株式会社 Trust Up Co., Ltd.	passive	121.6M	¥55	-25.4%	¥942M ($6.1M)
2026-01-07	BUY	private	トラストアップ株式会社 Trust Up Co., Ltd.	passive	129.6M	¥55	-25.4%	¥994M ($6.4M)
2026-01-07	BUY	negotiated	岡﨑太輔 Okazaki Daisuke	strategic	23.0M	¥55	-25.4%	¥615M ($4.0M)
2026-01-07	BUY	Market Buy	トラストアップ株式会社 Trust Up Co., Ltd.	passive	129.6M	¥55	-25.4%	¥994M ($6.4M)
2026-01-07	BUY	Market Buy	岡﨑太輔 Okazaki Daisuke	strategic	23.0M	¥55	-25.4%	¥615M ($4.0M)
2026-01-05	BUY	unknown	石井武 TAKESHI ISHII	activist	24.8M	¥54	-24.1%	¥687M ($4.4M)
2026-01-05	BUY	Market Buy	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥54	+24.1%	-
2026-01-05	SELL	Market Buy	エボファンド Evo Fund	activist	6.3M	¥54	+24.1%	¥257M ($1.7M)
2026-01-05	BUY	Market Buy	石井武 TAKESHI ISHII	activist	24.8M	¥54	-24.1%	¥687M ($4.4M)
2025-12-02	BUY	negotiated	岡﨑太輔 Okazaki Daisuke	strategic	8.0M	¥60	-31.7%	¥480M ($3.1M)
2025-12-02	BUY	negotiated	岡﨑太輔 Okazaki Daisuke	strategic	8.0M	¥60	-31.7%	¥480M ($3.1M)
2025-12-02	BUY	negotiated	岡﨑太輔 Okazaki Daisuke	strategic	8.0M	¥60	-31.7%	¥480M ($3.1M)
2025-12-02	BUY	negotiated	岡﨑太輔 Okazaki Daisuke	strategic	8.0M	¥60	-31.7%	¥480M ($3.1M)
2025-12-01	BUY	negotiated	岡﨑太輔 Okazaki Daisuke	strategic	8.0M	¥60	-31.7%	¥480M ($3.1M)
2025-11-28	SELL	Market Buy	トラストアップ株式会社 Trust Up Co., Ltd.	passive	37.6M	¥60	+31.7%	¥194M ($1.3M)
2025-11-28	BUY	Market Buy	トラストアップ株式会社 Trust Up Co., Ltd.	passive	45.6M	¥60	-31.7%	¥2.7B ($17.7M)
2025-11-28	BUY	Market Buy	エボリューション・キャピタル・マネジメント・エルエルシー Evolution Capital Management LLC	passive	0	¥60	-31.7%	-
2025-11-28	BUY	Market Buy	エボファンド Evo Fund	activist	6.7M	¥60	-31.7%	¥276M ($1.8M)
2025-11-17	BUY	Market Buy	トラストアップ株式会社 Trust Up Co., Ltd.	passive	45.6M	¥64	-35.9%	¥2.9B ($18.8M)

Showing the 50 most recent of 161 filings.

Frequently asked questions

Who has been buying AltPlus Inc. stock?: 10 distinct investors have filed 19 disclosed large-shareholding filings in AltPlus Inc. (3672), most recently on 2026-05-13. 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 AltPlus Inc. have?: AltPlus Inc. has 19 buy-side and 60 sell-side disclosures on record, covering ¥8.2B ($53.0M) in total reported value, spanning 2022-11-11 to 2026-05-13.
Where does StockDrifts get AltPlus 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 AltPlus Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.