Who has been buying Wavelock Holdings Co., Ltd. stock?

8 distinct investors have filed 8 disclosed large-shareholding filings in Wavelock Holdings Co., Ltd. (7940), most recently on 2025-12-25. 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 Wavelock Holdings Co., Ltd. have?

Wavelock Holdings Co., Ltd. has 8 buy-side and 16 sell-side disclosures on record, covering ¥1.8B ($11.8M) in total reported value, spanning 2021-03-26 to 2025-12-25.

Where does StockDrifts get Wavelock Holdings 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.

Wavelock Holdings Co., Ltd. 7940

Company

ウェーブロックホールディングス株式会社Wavelock Holdings Co., Ltd.

Investors

Buys

Total Value

¥1.8B ($11.8M)

Avg Return

-13.77%

Last Filing

2025-12-25

Wavelock Holdings Co., Ltd. (7940) has 8 disclosed large-shareholding filings and 16 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥1.8B ($11.8M) in reported transaction value. The earliest filing StockDrifts holds for Wavelock Holdings Co., Ltd. is dated 2021-03-26; the most recent is 2025-12-25. 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 -13.77%, 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
2026-07-10	BUY	Market Buy	株式会社スノーボールキャピタル	other	819.1K	¥1,057	+0.0%	¥160M ($1.0M)
2026-07-10	SELL	unknown	GLOBAL MANAGEMENT PARTNERS LIMITED	other	61.9K	¥1,057	+0.0%	¥147M ($948K)
2026-07-06	BUY	unknown	GLOBAL MANAGEMENT PARTNERS LIMITED	other	201.0K	¥1,058	-0.1%	¥213M ($1.4M)
2026-07-06	BUY	unknown	株式会社スノーボールキャピタル	other	668.1K	¥1,058	-0.1%	¥707M ($4.6M)
2025-12-25	BUY	Market Buy	株式会社エスグラントコーポレーション	activist	41.7K	¥1,270	+16.5%	¥44M ($285K)
2025-12-25	BUY	Market Buy	株式会社レノ	activist	753.1K	¥1,270	-16.5%	¥798M ($5.2M)
2025-12-25	BUY	Market Buy	株式会社シティインデックスファースト	activist	812.5K	¥1,270	+16.5%	¥861M ($5.6M)
2025-12-25	BUY	Market Buy	株式会社ATRA	activist	829.8K	¥1,270	+16.5%	¥880M ($5.7M)
2025-12-25	BUY	Market Buy	野村絢	activist	830.5K	¥1,270	+16.5%	¥880M ($5.7M)
2025-12-25	BUY	Market Buy	株式会社シティインデックスイレブンス	activist	100	¥1,270	+16.5%	¥106K ($684)
2025-11-20	BUY	Market Buy	株式会社レノ Reno Inc. (Murakami-linked)	activist	670.7K	¥1,195	-11.3%	¥183M ($1.2M)
2025-11-20	BUY	Market Buy	株式会社シティインデックスファースト City Index First Co., Ltd.	activist	812.5K	¥1,195	-11.3%	¥971M ($6.3M)
2025-11-20	BUY	Market Buy	株式会社ATRA ATRA Co., Ltd.	activist	829.8K	¥1,195	-11.3%	¥992M ($6.4M)
2025-11-20	BUY	Market Buy	野村絢 Aya Nomura (Murakami family)	activist	830.5K	¥1,195	-11.3%	¥992M ($6.4M)
2025-11-20	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥1,195	-11.3%	¥120K ($771)
2025-11-19	BUY	Market Buy	株式会社レノ Reno Inc. (Murakami-linked)	activist	517.5K	¥1,166	-9.1%	¥367M ($2.4M)
2025-11-19	BUY	Market Buy	株式会社シティインデックスファースト City Index First Co., Ltd.	activist	812.5K	¥1,166	-9.1%	¥947M ($6.1M)
2025-11-19	BUY	Market Buy	株式会社ATRA ATRA Co., Ltd.	activist	829.8K	¥1,166	-9.1%	¥968M ($6.2M)
2025-11-19	BUY	Market Buy	野村絢 Aya Nomura (Murakami family)	activist	830.5K	¥1,166	-9.1%	¥968M ($6.2M)
2025-11-19	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥1,166	-9.1%	¥117K ($752)
2025-11-18	BUY	Market Buy	株式会社レノ Reno Inc. (Murakami-linked)	activist	202.9K	¥1,225	-13.5%	¥249M ($1.6M)
2025-11-18	BUY	Market Buy	株式会社シティインデックスファースト City Index First Co., Ltd.	activist	812.5K	¥1,225	-13.5%	¥995M ($6.4M)
2025-11-18	BUY	Market Buy	株式会社ATRA ATRA Co., Ltd.	activist	829.8K	¥1,225	-13.5%	¥1.0B ($6.6M)
2025-11-18	BUY	Market Buy	野村絢 Aya Nomura (Murakami family)	activist	830.5K	¥1,225	-13.5%	¥1.0B ($6.6M)
2025-11-18	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥1,225	-13.5%	¥123K ($790)
2025-11-17	BUY	Market Buy	株式会社シティインデックスファースト City Index First Co., Ltd.	activist	812.5K	¥1,134	-6.5%	¥159M ($1.0M)
2025-11-17	BUY	Market Buy	株式会社ATRA ATRA Co., Ltd.	activist	829.8K	¥1,134	-6.5%	¥941M ($6.1M)
2025-11-17	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥1,134	-6.5%	¥113K ($732)
2025-11-17	BUY	Market Buy	野村絢 Aya Nomura (Murakami family)	activist	830.5K	¥1,134	-6.5%	¥942M ($6.1M)
2025-11-14	BUY	Market Buy	株式会社シティインデックスファースト City Index First Co., Ltd.	activist	672.4K	¥1,173	-9.6%	¥314M ($2.0M)
2025-11-14	BUY	Market Buy	株式会社ATRA ATRA Co., Ltd.	activist	829.8K	¥1,173	-9.6%	¥973M ($6.3M)
2025-11-14	BUY	Market Buy	野村絢 Aya Nomura (Murakami family)	activist	830.5K	¥1,173	-9.6%	¥974M ($6.3M)
2025-11-14	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥1,173	-9.6%	¥117K ($757)
2025-11-13	BUY	Market Buy	株式会社シティインデックスファースト City Index First Co., Ltd.	activist	404.9K	¥1,291	-17.9%	¥523M ($3.4M)
2025-11-13	BUY	Market Buy	株式会社ATRA ATRA Co., Ltd.	activist	829.8K	¥1,291	-17.9%	¥1.1B ($6.9M)
2025-11-13	BUY	Market Buy	野村絢 Aya Nomura (Murakami family)	activist	830.5K	¥1,291	-17.9%	¥1.1B ($6.9M)
2025-11-13	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥1,291	-17.9%	¥129K ($833)
2025-11-12	BUY	unknown	株式会社ATRA ATRA Co., Ltd.	activist	829.8K	¥1,309	-19.0%	¥1.1B ($7.0M)
2025-11-12	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	830.5K	¥1,309	-19.0%	¥1.1B ($7.0M)
2025-11-12	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥1,309	-19.0%	¥131K ($845)
2024-07-31	SELL	unknown	株式会社サンゲツ Sangetsu Corporation	strategic	460.5K	¥648	-63.6%	¥75M ($484K)
2024-05-17	SELL	unknown	株式会社サンゲツ Sangetsu Corporation	strategic	576.2K	¥644	-64.6%	¥77M ($494K)
2024-03-29	SELL	unknown	株式会社サンゲツ Sangetsu Corporation	strategic	695.3K	¥701	-51.2%	¥80M ($518K)
2024-02-21	SELL	unknown	株式会社サンゲツ Sangetsu Corporation	strategic	809.1K	¥683	-55.2%	¥77M ($500K)
2024-01-15	SELL	unknown	株式会社サンゲツ Sangetsu Corporation	strategic	923.0K	¥659	-60.9%	¥77M ($496K)
2023-11-21	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	446.4K	¥622	-70.4%	¥70M ($451K)
2023-11-08	SELL	unknown	株式会社サンゲツ Sangetsu Corporation	strategic	1.0M	¥615	-72.4%	¥69M ($446K)
2023-09-12	SELL	unknown	株式会社サンゲツ Sangetsu Corporation	strategic	1.2M	¥668	-58.7%	¥76M ($489K)
2023-04-12	SELL	unknown	株式会社サンゲツ Sangetsu Corporation	strategic	1.3M	¥603	-75.8%	¥69M ($446K)
2023-02-20	SELL	unknown	株式会社サンゲツ Sangetsu Corporation	strategic	1.4M	¥612	-73.2%	¥71M ($457K)

Showing the 50 most recent of 56 filings.

Frequently asked questions

Who has been buying Wavelock Holdings Co., Ltd. stock?: 8 distinct investors have filed 8 disclosed large-shareholding filings in Wavelock Holdings Co., Ltd. (7940), most recently on 2025-12-25. 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 Wavelock Holdings Co., Ltd. have?: Wavelock Holdings Co., Ltd. has 8 buy-side and 16 sell-side disclosures on record, covering ¥1.8B ($11.8M) in total reported value, spanning 2021-03-26 to 2025-12-25.
Where does StockDrifts get Wavelock Holdings 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 Wavelock Holdings Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.