Who has been buying MegaChips Corporation stock?

13 distinct investors have filed 15 disclosed large-shareholding filings in MegaChips Corporation (6875), most recently on 2025-11-19. 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 MegaChips Corporation have?

MegaChips Corporation has 15 buy-side and 12 sell-side disclosures on record, covering ¥5.3B ($34.1M) in total reported value, spanning 2022-01-19 to 2025-11-19.

Where does StockDrifts get MegaChips Corporation 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.

MegaChips Corporation 6875

Company

株式会社メガチップスMegaChips Corporation

Investors

Buys

Total Value

¥5.3B ($34.1M)

Avg Return

+162.37%

Last Filing

2025-11-19

MegaChips Corporation (6875) has 15 disclosed large-shareholding filings and 12 disclosed disposals on record, filed by 13 distinct investors. Together those filings cover ¥5.3B ($34.1M) in reported transaction value. The earliest filing StockDrifts holds for MegaChips Corporation is dated 2022-01-19; the most recent is 2025-11-19. 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 +162.37%, 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
2026-06-17	SELL	unknown	進藤律子	strategic	366.6K	¥10,510	+11.6%	¥1.6B ($10.2M)
2026-06-17	BUY	unknown	株式会社シンドウ・アンド・アソシエイツ	strategic	1.3M	¥10,510	-11.6%	¥13.3B ($85.5M)
2026-06-17	BUY	unknown	有限会社シンドウ	strategic	1.2M	¥10,510	-11.6%	¥13.0B ($84.1M)
2026-06-17	SELL	unknown	進藤晶弘	strategic	387.6K	¥10,510	+11.6%	¥1.6B ($10.1M)
2026-06-10	BUY	Market Buy	進藤律子	strategic	516.6K	¥10,610	-0.7%	¥344M ($2.2M)
2026-06-10	BUY	Market Buy	株式会社シンドウ・アンド・アソシエイツ	strategic	1.3M	¥10,610	-0.7%	¥1.5B ($9.8M)
2026-06-10	BUY	Market Buy	有限会社シンドウ	strategic	1.2M	¥10,610	-0.7%	¥1.3B ($8.3M)
2026-06-10	BUY	Market Buy	進藤晶弘	strategic	537.6K	¥10,610	-0.7%	¥404M ($2.6M)
2026-06-01	BUY	Market Buy	有限会社シンドウ	strategic	1.2M	¥12,380	-19.1%	¥1.5B ($9.7M)
2026-06-01	BUY	Market Buy	有限会社シンドウ	strategic	1.2M	¥12,380	-19.1%	¥1.5B ($9.7M)
2026-06-01	BUY	Market Buy	進藤律子	strategic	516.6K	¥12,380	-19.1%	¥401M ($2.6M)
2026-06-01	BUY	Market Buy	進藤晶弘	strategic	537.6K	¥12,380	-19.1%	¥472M ($3.0M)
2026-06-01	BUY	Market Buy	株式会社シンドウ・アンド・アソシエイツ	strategic	1.3M	¥12,380	-19.1%	¥1.8B ($11.4M)
2026-06-01	BUY	Market Buy	進藤律子	strategic	516.6K	¥12,380	-19.1%	¥401M ($2.6M)
2026-06-01	BUY	Market Buy	進藤晶弘	strategic	537.6K	¥12,380	-19.1%	¥472M ($3.0M)
2026-06-01	BUY	Market Buy	株式会社シンドウ・アンド・アソシエイツ	strategic	1.3M	¥12,380	-19.1%	¥1.8B ($11.4M)
2025-11-19	BUY	unknown	株式会社シティインデックスファースト City Index First Co., Ltd.	activist	59.0K	¥7,490	+25.9%	¥442M ($2.9M)
2025-11-19	SELL	unknown	野村絢 Aya Nomura (Murakami family)	activist	953.2K	¥7,490	-25.9%	¥2.3B ($14.8M)
2025-11-19	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	¥7,490	+25.9%	¥749K ($5K)
2025-10-08	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	59.0K	¥8,100	+16.4%	¥478M ($3.1M)
2025-10-08	BUY	Market Buy	野村絢 Aya Nomura (Murakami family)	activist	1.3M	¥8,100	+16.4%	¥1.7B ($10.8M)
2025-10-08	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	¥8,100	+16.4%	¥810K ($5K)
2025-10-01	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	1.1M	¥7,580	+24.4%	¥8.0B ($51.5M)
2025-10-01	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	¥7,580	+24.4%	¥758K ($5K)
2024-11-08	SELL	unknown	ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited	other	344.9K	¥5,760	-63.7%	¥83M ($537K)
2024-11-08	SELL	unknown	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	549.1K	¥5,760	-63.7%	¥1.1B ($7.2M)
2023-09-08	BUY	Market Buy	株式会社シンドウ・アンド・アソシエイツ Shindo & Associates Co., Ltd.	strategic	1.2M	¥4,205	+124.3%	¥435M ($2.8M)
2023-09-08	BUY	Market Buy	有限会社シンドウ Shindo Co., Ltd.	strategic	1.2M	¥4,205	+124.3%	¥435M ($2.8M)
2023-09-08	BUY	Market Buy	進藤律子 Ritsuko Shindo	strategic	536.6K	¥4,205	+124.3%	¥71M ($459K)
2023-09-08	BUY	Market Buy	進藤晶弘 Shindo Masahiro	strategic	552.6K	¥4,205	+124.3%	¥124M ($803K)
2023-08-04	SELL	unknown	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	790.0K	¥4,155	-127.0%	¥201M ($1.3M)
2023-08-04	SELL	unknown	ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited	other	381.3K	¥4,155	-127.0%	¥794M ($5.1M)
2023-06-20	SELL	unknown	ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited	other	574.4K	¥3,750	-151.5%	¥387M ($2.5M)
2023-06-20	SELL	unknown	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	839.7K	¥3,750	-151.5%	¥610M ($3.9M)
2022-11-08	SELL	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	90.5K	¥2,637	-257.6%	¥58M ($374K)
2022-11-08	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	3.5K	¥2,637	+257.6%	¥620M ($4.0M)
2022-11-08	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	398.0K	¥2,637	-257.6%	¥70M ($448K)
2022-11-08	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	487.7K	¥2,637	+257.6%	¥1.3B ($8.3M)
2022-10-21	BUY	unknown	ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited	other	676.0K	¥2,470	+281.8%	¥553M ($3.6M)
2022-10-21	SELL	unknown	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	1.0M	¥2,470	-281.8%	¥521M ($3.4M)
2022-10-03	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	204.8K	¥2,574	+266.4%	¥527M ($3.4M)
2022-10-03	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	112.8K	¥2,574	+266.4%	¥290M ($1.9M)
2022-10-03	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	423.1K	¥2,574	+266.4%	¥1.1B ($7.0M)
2022-10-03	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	487.7K	¥2,574	+266.4%	¥1.3B ($8.1M)
2022-04-07	BUY	unknown	ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited	other	452.0K	¥3,585	+163.0%	¥55M ($356K)
2022-04-07	SELL	unknown	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	1.2M	¥3,585	-163.0%	¥795M ($5.1M)
2022-01-19	BUY	unknown	ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited	other	459.4K	¥4,590	+105.5%	¥1.0B ($6.5M)
2022-01-19	SELL	unknown	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	1.5M	¥4,590	-105.5%	¥1.2B ($7.8M)

Frequently asked questions

Who has been buying MegaChips Corporation stock?: 13 distinct investors have filed 15 disclosed large-shareholding filings in MegaChips Corporation (6875), most recently on 2025-11-19. 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 MegaChips Corporation have?: MegaChips Corporation has 15 buy-side and 12 sell-side disclosures on record, covering ¥5.3B ($34.1M) in total reported value, spanning 2022-01-19 to 2025-11-19.
Where does StockDrifts get MegaChips Corporation 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 MegaChips Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.