Who has been buying Def consulting, inc. stock?

9 distinct investors have filed 14 disclosed large-shareholding filings in Def consulting, inc. (4833), most recently on 2026-02-20. 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 Def consulting, inc. have?

Def consulting, inc. has 14 buy-side and 52 sell-side disclosures on record, covering ¥9.7B ($62.4M) in total reported value, spanning 2021-05-18 to 2026-02-20.

Where does StockDrifts get Def consulting, 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.

Def consulting, inc. 4833

Company

株式会社Success HoldersDef consulting, inc.

Investors

Buys

Total Value

¥9.7B ($62.4M)

Avg Return

-49.23%

Last Filing

2026-02-20

Def consulting, inc. (4833) has 14 disclosed large-shareholding filings and 52 disclosed disposals on record, filed by 9 distinct investors. Together those filings cover ¥9.7B ($62.4M) in reported transaction value. The earliest filing StockDrifts holds for Def consulting, inc. is dated 2021-05-18; the most recent is 2026-02-20. 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 -49.23%, 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
2026-07-17	BUY	Market Buy	古川徳厚	other	22.9M	¥47	-2.1%	¥521M ($3.4M)
2026-07-17	BUY	subscription	グロースパートナーズ株式会社	other	22.9M	¥47	-2.1%	¥521M ($3.4M)
2026-02-20	SELL	unknown	株式会社The capital The capital inc.	strategic	14.0M	¥77	+14.3%	¥1.0B ($6.6M)
2026-02-19	BUY	unknown	古川徳厚	other	7.9M	¥82	-19.5%	¥520M ($3.4M)
2026-02-19	BUY	unknown	グロースパートナーズ株式会社	other	7.9M	¥82	-19.5%	¥520M ($3.4M)
2026-02-02	SELL	unknown	株式会社The capital The capital inc.	strategic	29.8M	¥102	+35.3%	¥392M ($2.5M)
2026-01-22	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	¥94	+29.8%	-
2026-01-22	SELL	Market Buy	エボファンド Evo Fund	activist	2.1M	¥94	+29.8%	¥138M ($890K)
2026-01-15	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	¥114	+42.1%	-
2026-01-15	SELL	Market Buy	エボファンド Evo Fund	activist	4.2M	¥114	+42.1%	¥280M ($1.8M)
2026-01-13	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	¥99	+33.3%	-
2026-01-13	SELL	Market Buy	エボファンド Evo Fund	activist	5.4M	¥99	+33.3%	¥358M ($2.3M)
2026-01-06	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	¥70	+5.7%	-
2026-01-06	SELL	Market Buy	エボファンド Evo Fund	activist	7.3M	¥70	+5.7%	¥481M ($3.1M)
2025-12-26	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	¥64	-3.1%	-
2025-12-26	SELL	Market Buy	エボファンド Evo Fund	activist	9.2M	¥64	-3.1%	¥606M ($3.9M)
2025-12-11	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	¥64	-3.1%	-
2025-12-11	SELL	Market Buy	エボファンド Evo Fund	activist	10.1M	¥64	-3.1%	¥667M ($4.3M)
2025-12-04	SELL	Market Buy	エボファンド Evo Fund	activist	11.2M	¥65	-1.5%	¥737M ($4.8M)
2025-12-04	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	¥65	-1.5%	-
2025-11-18	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	¥69	-4.3%	-
2025-11-18	SELL	Market Buy	エボファンド Evo Fund	activist	12.0M	¥69	+4.3%	¥47M ($301K)
2025-11-04	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	¥101	-34.6%	-
2025-11-04	SELL	Market Buy	エボファンド Evo Fund	activist	12.8M	¥101	+34.6%	¥121M ($780K)
2025-10-28	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	¥107	-38.3%	-
2025-10-28	SELL	Market Buy	エボファンド Evo Fund	activist	14.1M	¥107	+38.3%	¥94M ($605K)
2025-10-27	BUY	unknown	株式会社The capital The capital inc.	strategic	29.8M	¥117	-43.6%	¥3.5B ($22.5M)
2025-10-27	SELL	unknown	株式会社The capital The capital inc.	strategic	29.8M	¥117	+43.6%	¥1.3B ($8.7M)
2025-10-27	BUY	unknown	株式会社The capital The capital inc.	strategic	29.8M	¥117	-43.6%	¥3.5B ($22.5M)
2025-10-27	BUY	unknown	株式会社The capital The capital inc.	strategic	29.8M	¥117	-43.6%	¥3.5B ($22.5M)
2025-10-21	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	¥111	-40.5%	-
2025-10-21	BUY	Market Buy	エボファンド Evo Fund	activist	15.2M	¥111	-40.5%	¥149M ($963K)
2025-10-17	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	¥94	-29.8%	-
2025-10-17	SELL	Market Buy	エボファンド Evo Fund	activist	13.5M	¥94	+29.8%	¥142M ($915K)
2025-10-16	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	¥103	-35.9%	-
2025-10-16	SELL	Market Buy	エボファンド Evo Fund	activist	15.4M	¥103	+35.9%	¥82M ($532K)
2025-10-15	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	¥105	-37.1%	-
2025-10-15	SELL	Market Buy	エボファンド Evo Fund	activist	16.3M	¥105	+37.1%	¥162M ($1.0M)
2025-10-08	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	¥121	-45.5%	-
2025-10-08	BUY	Market Buy	エボファンド Evo Fund	activist	18.2M	¥121	-45.5%	¥117M ($757K)
2025-10-07	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	¥135	-51.1%	-
2025-10-07	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	¥135	-51.1%	-
2025-10-07	SELL	Market Buy	エボファンド Evo Fund	activist	17.0M	¥135	+51.1%	¥120M ($776K)
2025-10-07	SELL	Market Buy	エボファンド Evo Fund	activist	17.0M	¥135	+51.1%	¥120M ($776K)
2025-10-06	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	¥129	-48.8%	-
2025-10-06	SELL	Market Buy	エボファンド Evo Fund	activist	18.1M	¥129	+48.8%	¥390M ($2.5M)
2025-10-03	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	¥125	-47.2%	-
2025-10-03	SELL	Market Buy	エボファンド Evo Fund	activist	21.7M	¥125	+47.2%	¥105M ($674K)
2025-10-02	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	¥119	-44.5%	-
2025-10-02	SELL	Market Buy	エボファンド Evo Fund	activist	22.7M	¥119	+44.5%	¥100M ($647K)

Showing the 50 most recent of 117 filings.

Frequently asked questions

Who has been buying Def consulting, inc. stock?: 9 distinct investors have filed 14 disclosed large-shareholding filings in Def consulting, inc. (4833), most recently on 2026-02-20. 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 Def consulting, inc. have?: Def consulting, inc. has 14 buy-side and 52 sell-side disclosures on record, covering ¥9.7B ($62.4M) in total reported value, spanning 2021-05-18 to 2026-02-20.
Where does StockDrifts get Def consulting, 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 Def consulting, inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.