Who has been buying Kudan Inc. stock?

4 distinct investors have filed 6 disclosed large-shareholding filings in Kudan Inc. (4425), most recently on 2026-03-06. 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 Kudan Inc. have?

Kudan Inc. has 6 buy-side and 31 sell-side disclosures on record, covering ¥6.4B ($41.5M) in total reported value, spanning 2021-06-04 to 2026-03-06.

Where does StockDrifts get Kudan 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.

Kudan Inc. 4425

Company

Kudan株式会社Kudan Inc.

Investors

Buys

Total Value

¥6.4B ($41.5M)

Avg Return

+54.99%

Last Filing

2026-03-06

Kudan Inc. (4425) has 6 disclosed large-shareholding filings and 31 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥6.4B ($41.5M) in reported transaction value. The earliest filing StockDrifts holds for Kudan Inc. is dated 2021-06-04; the most recent is 2026-03-06. 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 +54.99%, 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
2026-08-07	SELL	unknown	江見由希子 Yukiko Emi	unknown	655.7K	¥1,684	+0.7%	¥214M ($1.4M)
2026-08-03	BUY	unknown	江見由希子 Yukiko Emi	unknown	782.4K	¥1,612	+3.7%	¥475M ($3.1M)
2026-07-21	BUY	unknown	江見由希子 Yukiko Emi	unknown	782.4K	¥1,814	-7.8%	¥534M ($3.4M)
2026-07-21	SELL	unknown	江見由希子 Yukiko Emi	unknown	782.4K	¥1,814	+7.8%	¥534M ($3.4M)
2026-03-06	SELL	unknown	大野智弘 Tomohiro Ohno	strategic	3.3M	¥2,093	-26.4%	¥9M ($61K)
2025-11-28	BUY	unknown	大野智弘 Tomohiro Ohno	strategic	3.3M	¥1,081	+144.8%	¥3.6B ($23.1M)
2025-07-25	BUY	unknown	大野智弘 Tomohiro Ohno	strategic	3.3M	¥1,144	+131.3%	¥3.8B ($24.5M)
2025-03-17	SELL	unknown	大野智弘 Tomohiro Ohno	strategic	3.3M	¥1,265	-109.2%	¥1M ($9K)
2025-02-25	SELL	unknown	大野智弘 Tomohiro Ohno	strategic	3.3M	¥1,355	-95.3%	¥486M ($3.1M)
2024-10-08	SELL	unknown	大野智弘 Tomohiro Ohno	strategic	3.7M	¥1,568	-68.8%	¥301M ($1.9M)
2024-09-27	SELL	unknown	大野智弘 Tomohiro Ohno	strategic	3.9M	¥1,689	-56.7%	¥629M ($4.1M)
2024-07-31	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	562.0K	¥1,834	-44.3%	¥206M ($1.3M)
2024-07-30	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	675.1K	¥1,826	-44.9%	¥215M ($1.4M)
2024-07-23	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	795.0K	¥1,810	-46.2%	¥263M ($1.7M)
2024-07-12	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	943.9K	¥1,953	-35.5%	¥258M ($1.7M)
2024-07-09	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	1.1M	¥1,965	-34.7%	¥261M ($1.7M)
2024-07-01	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	1.2M	¥2,035	-30.0%	¥219M ($1.4M)
2024-06-28	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	1.3M	¥1,973	-34.1%	¥299M ($1.9M)
2024-06-28	BUY	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	1.3M	¥1,973	+34.1%	¥299M ($1.9M)
2024-06-24	BUY	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	1.5M	¥2,027	+30.5%	¥3.0B ($19.6M)
2024-06-07	BUY	subscription	大野智弘 Tomohiro Ohno	strategic	3.9M	¥2,423	+9.2%	¥9.4B ($60.4M)
2024-04-16	SELL	unknown	大野智弘 Tomohiro Ohno	strategic	3.9M	¥1,973	-34.1%	¥1.4B ($9.2M)
2024-03-07	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	790.3K	¥2,173	-21.8%	¥281M ($1.8M)
2024-03-07	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	500.0K	¥2,173	-21.8%	¥629M ($4.1M)
2024-03-01	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	919.3K	¥1,181	-124.0%	¥158M ($1.0M)
2024-02-20	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	1.2M	¥1,070	-147.3%	¥334M ($2.2M)
2024-02-20	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	1.1M	¥1,070	-147.3%	¥168M ($1.1M)
2024-02-14	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	1.7M	¥843	-213.9%	¥86M ($553K)
2024-02-14	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	1.6M	¥843	-213.9%	¥98M ($631K)
2024-01-29	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	1.8M	¥927	-185.4%	¥140M ($901K)
2024-01-15	BUY	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	500.0K	¥1,048	+152.5%	¥524M ($3.4M)
2024-01-15	BUY	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	2.1M	¥1,048	+152.5%	¥1.3B ($8.6M)
2024-01-15	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	2.0M	¥1,048	-152.5%	¥111M ($714K)
2023-10-24	BUY	unknown	大野智弘 Tomohiro Ohno	strategic	3.9M	¥1,421	+86.2%	¥5.5B ($35.4M)
2023-09-11	BUY	unknown	大野智弘 Tomohiro Ohno	strategic	3.9M	¥1,598	+65.6%	¥6.2B ($39.8M)
2023-08-03	SELL	unknown	大野智弘 Tomohiro Ohno	strategic	3.9M	¥1,856	-42.6%	¥373M ($2.4M)
2023-04-10	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	335.5K	¥1,961	-34.9%	¥191M ($1.2M)
2023-02-14	BUY	unknown	江見淳相続人代表江見由希子 Yukiko Emi	unknown	0	¥2,777	-4.7%	¥2.6B ($16.9M)
2023-02-14	BUY	unknown	江見由希子 Yukiko Emi	strategic	788.0K	¥2,777	-4.7%	¥2.2B ($14.1M)
2023-02-14	SELL	unknown	江見淳相続人代表江見由希子 Yukiko Emi	unknown	788.0K	¥2,777	+4.7%	¥2.6B ($16.9M)
2023-02-06	SELL	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	384.7K	¥2,908	+9.0%	¥193M ($1.2M)
2023-01-10	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	450.7K	¥2,660	-0.5%	¥1.2B ($7.7M)
2022-08-23	SELL	subscription	大野智弘 Tomohiro Ohno	strategic	3.9M	¥3,020	+12.4%	¥15M ($96K)
2022-08-22	SELL	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	434.1K	¥3,040	+13.0%	¥592M ($3.8M)
2022-08-01	BUY	Market Buy	グロース・キャピタル株式会社 Growth Capital Inc.	passive	634.5K	¥2,655	-0.3%	¥1.7B ($10.9M)
2022-07-13	SELL	subscription	大野智弘 Tomohiro Ohno	strategic	3.9M	¥2,419	-9.4%	¥2M ($13K)
2022-04-11	SELL	unknown	大野智弘 Tomohiro Ohno	strategic	3.9M	¥2,123	-24.6%	¥524M ($3.4M)
2021-10-19	BUY	unknown	大野智弘 Tomohiro Ohno	strategic	3.9M	¥3,100	-14.7%	¥12.0B ($77.3M)
2021-06-04	SELL	unknown	大野智弘 Tomohiro Ohno	strategic	3.9M	¥3,960	+33.2%	¥1.4B ($9.0M)

Frequently asked questions

Who has been buying Kudan Inc. stock?: 4 distinct investors have filed 6 disclosed large-shareholding filings in Kudan Inc. (4425), most recently on 2026-03-06. 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 Kudan Inc. have?: Kudan Inc. has 6 buy-side and 31 sell-side disclosures on record, covering ¥6.4B ($41.5M) in total reported value, spanning 2021-06-04 to 2026-03-06.
Where does StockDrifts get Kudan 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 Kudan Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.