Who has been buying SEKIDO Co., Ltd. stock?

5 distinct investors have filed 9 disclosed large-shareholding filings in SEKIDO Co., Ltd. (9878), most recently on 2026-04-07. 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 SEKIDO Co., Ltd. have?

SEKIDO Co., Ltd. has 9 buy-side and 31 sell-side disclosures on record, covering ¥1.9B ($12.5M) in total reported value, spanning 2021-08-19 to 2026-04-07.

Where does StockDrifts get SEKIDO Co., Ltd. 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.

SEKIDO Co., Ltd. 9878

Company

株式会社セキドSEKIDO Co., Ltd.

Investors

Buys

Total Value

¥1.9B ($12.5M)

Avg Return

-32.91%

Last Filing

2026-04-07

SEKIDO Co., Ltd. (9878) has 9 disclosed large-shareholding filings and 31 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥1.9B ($12.5M) in reported transaction value. The earliest filing StockDrifts holds for SEKIDO Co., Ltd. is dated 2021-08-19; the most recent is 2026-04-07. 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 -32.91%, 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
2026-06-30	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	¥417	+0.2%	-
2026-06-30	SELL	private	エボファンド Evo Fund	activist	1.9M	¥417	-0.2%	¥5M ($30K)
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	¥451	-8.0%	-
2026-06-02	SELL	private	エボファンド Evo Fund	activist	1.9M	¥451	+8.0%	¥430K ($3K)
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	¥477	+1.5%	-
2026-04-07	SELL	private	エボファンド Evo Fund	activist	1.9M	¥477	-1.5%	¥18M ($113K)
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	¥519	+8.5%	-
2026-01-13	SELL	Market Buy	エボファンド Evo Fund	activist	2.0M	¥519	+8.5%	¥943M ($6.1M)
2025-12-16	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	¥467	-1.7%	-
2025-12-16	SELL	Market Buy	エボファンド Evo Fund	activist	2.0M	¥467	-1.7%	¥970M ($6.3M)
2025-12-12	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	¥472	-0.6%	-
2025-12-12	SELL	Market Buy	エボファンド Evo Fund	activist	2.1M	¥472	-0.6%	¥1.0B ($6.5M)
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	¥487	+2.5%	-
2025-12-11	BUY	Market Buy	エボファンド Evo Fund	activist	2.1M	¥487	-2.5%	¥1.0B ($6.5M)
2025-11-27	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	¥582	+18.4%	-
2025-11-27	BUY	Market Buy	エボファンド Evo Fund	activist	259.0K	¥582	-18.4%	¥123M ($794K)
2025-11-26	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	¥582	-18.4%	-
2025-11-26	BUY	Market Buy	エボファンド Evo Fund	activist	207.0K	¥582	-18.4%	¥98M ($634K)
2025-11-19	BUY	unknown	関戸正実 MASAMI SEKIDO	other	398.2K	¥578	-17.8%	¥230M ($1.5M)
2025-11-14	SELL	unknown	関戸正実 MASAMI SEKIDO	other	398.2K	¥603	+21.2%	¥246K ($2K)
2025-11-14	BUY	unknown	関戸正実 MASAMI SEKIDO	other	398.2K	¥603	-21.2%	¥240M ($1.5M)
2025-11-14	BUY	unknown	関戸正実 MASAMI SEKIDO	other	398.2K	¥603	-21.2%	¥240M ($1.5M)
2025-11-14	SELL	unknown	関戸正実 MASAMI SEKIDO	other	398.2K	¥603	+21.2%	¥107M ($690K)
2025-11-14	BUY	unknown	関戸正実 MASAMI SEKIDO	other	398.2K	¥603	-21.2%	¥240M ($1.5M)
2025-11-14	SELL	unknown	関戸正実 MASAMI SEKIDO	other	398.2K	¥603	+21.2%	¥44M ($282K)
2025-11-14	SELL	unknown	関戸正実 MASAMI SEKIDO	other	398.2K	¥603	+21.2%	¥738K ($5K)
2025-08-28	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	¥742	-36.0%	-
2025-08-28	SELL	Market Buy	エボファンド Evo Fund	activist	0	¥742	+36.0%	¥148M ($958K)
2025-08-27	SELL	Market Buy	エボファンド Evo Fund	activist	200.0K	¥740	+35.8%	¥23M ($151K)
2025-08-27	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	¥740	-35.8%	-
2025-08-21	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	¥722	-34.2%	-
2025-08-21	SELL	Market Buy	エボファンド Evo Fund	activist	231.7K	¥722	+34.2%	¥12M ($77K)
2025-08-07	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	¥700	-32.1%	-
2025-08-07	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	¥700	-32.1%	-
2025-08-07	SELL	Market Buy	エボファンド Evo Fund	activist	248.0K	¥700	+32.1%	¥20M ($129K)
2025-08-07	SELL	Market Buy	エボファンド Evo Fund	activist	248.0K	¥700	+32.1%	¥20M ($129K)
2025-08-05	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	¥710	-33.1%	-
2025-08-05	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	¥710	-33.1%	-
2025-08-05	SELL	Market Buy	エボファンド Evo Fund	activist	277.0K	¥710	+33.1%	¥3M ($22K)
2025-08-05	SELL	Market Buy	エボファンド Evo Fund	activist	277.0K	¥710	+33.1%	¥3M ($22K)
2025-07-31	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	¥921	-48.4%	-
2025-07-31	SELL	Market Buy	エボファンド Evo Fund	activist	282.0K	¥921	+48.4%	¥36M ($234K)
2025-07-22	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	¥1,038	-54.2%	-
2025-07-22	SELL	Market Buy	エボファンド Evo Fund	activist	323.7K	¥1,038	+54.2%	¥46M ($298K)
2025-07-16	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	¥1,317	-63.9%	-
2025-07-16	SELL	Market Buy	エボファンド Evo Fund	activist	370.9K	¥1,317	+63.9%	¥37M ($241K)
2025-07-10	SELL	Market Buy	エボファンド Evo Fund	activist	400.0K	¥1,350	+64.8%	¥42M ($272K)
2025-07-10	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	¥1,350	-64.8%	-
2025-07-09	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	¥1,348	-64.8%	-
2025-07-09	SELL	Market Buy	エボファンド Evo Fund	activist	433.4K	¥1,348	+64.8%	¥69M ($443K)

Showing the 50 most recent of 79 filings.

Frequently asked questions

Who has been buying SEKIDO Co., Ltd. stock?: 5 distinct investors have filed 9 disclosed large-shareholding filings in SEKIDO Co., Ltd. (9878), most recently on 2026-04-07. 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 SEKIDO Co., Ltd. have?: SEKIDO Co., Ltd. has 9 buy-side and 31 sell-side disclosures on record, covering ¥1.9B ($12.5M) in total reported value, spanning 2021-08-19 to 2026-04-07.
Where does StockDrifts get SEKIDO Co., Ltd. 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 SEKIDO Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.