Who has been buying MS&Consulting Co., Ltd. stock?

10 distinct investors have filed 32 disclosed large-shareholding filings in MS&Consulting Co., Ltd. (6555), most recently on 2026-04-28. 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 MS&Consulting Co., Ltd. have?

MS&Consulting Co., Ltd. has 32 buy-side and 19 sell-side disclosures on record, covering ¥1.3B ($8.4M) in total reported value, spanning 2021-03-18 to 2026-04-28.

Where does StockDrifts get MS&Consulting 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.

MS&Consulting Co., Ltd. 6555

Company

株式会社MS&ConsultingMS&Consulting Co., Ltd.

Investors

Buys

Total Value

¥1.3B ($8.4M)

Avg Return

-19.49%

Last Filing

2026-04-28

MS&Consulting Co., Ltd. (6555) has 32 disclosed large-shareholding filings and 19 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥1.3B ($8.4M) in reported transaction value. The earliest filing StockDrifts holds for MS&Consulting Co., Ltd. is dated 2021-03-18; the most recent is 2026-04-28. 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 -19.49%, 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
2026-04-28	BUY	Market Buy	株式会社UH Partners 3	passive	282.6K	¥464	-0.4%	¥131M ($846K)
2026-04-28	BUY	Market Buy	株式会社UH Partners 2	passive	282.6K	¥464	-0.4%	¥131M ($846K)
2026-04-28	BUY	Market Buy	光通信株式会社	passive	330.5K	¥464	-0.4%	¥153M ($989K)
2026-04-28	BUY	Market Buy	株式会社UH6	passive	337.4K	¥464	-0.4%	¥157M ($1.0M)
2026-04-28	BUY	Market Buy	株式会社アイビー	passive	201.1K	¥464	-0.4%	¥23M ($150K)
2026-04-28	BUY	Market Buy	株式会社エヌオーアイ	passive	302.9K	¥464	-0.4%	¥141M ($907K)
2026-04-07	SELL	Market Buy	株式会社エヌオーアイ	passive	302.9K	¥434	-1.8%	¥7M ($44K)
2026-04-07	BUY	Market Buy	株式会社UH6	passive	337.4K	¥434	+1.8%	¥146M ($945K)
2026-04-07	BUY	Market Buy	株式会社アイビー	passive	150.8K	¥434	+1.8%	¥8M ($50K)
2026-04-07	SELL	Market Buy	株式会社エスアイエル	unknown	0	¥434	-1.8%	¥139M ($900K)
2026-04-07	BUY	Market Buy	株式会社UH Partners 3	passive	282.6K	¥434	+1.8%	¥123M ($791K)
2026-04-07	BUY	Market Buy	株式会社UH Partners 2	passive	282.6K	¥434	+1.8%	¥123M ($791K)
2026-04-07	BUY	Market Buy	光通信株式会社	passive	330.5K	¥434	+1.8%	¥143M ($925K)
2026-02-19	SELL	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	155.1K	¥417	-2.4%	¥32M ($209K)
2025-12-23	BUY	Market Buy	株式会社アイビー	passive	132.7K	¥424	+0.7%	¥57M ($366K)
2025-12-23	BUY	Market Buy	株式会社エヌオーアイ	passive	318.8K	¥424	+0.7%	¥136M ($878K)
2025-12-23	BUY	Market Buy	株式会社エスアイエル	passive	321.5K	¥424	-0.7%	¥137M ($886K)
2025-12-23	BUY	Market Buy	株式会社UH Partners 3	passive	282.6K	¥424	-0.7%	¥121M ($779K)
2025-12-23	BUY	Market Buy	株式会社UH Partners 2	passive	282.6K	¥424	-0.7%	¥121M ($779K)
2025-12-23	BUY	Market Buy	光通信株式会社	passive	330.5K	¥424	-0.7%	¥141M ($910K)
2025-11-20	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	232.5K	¥390	+9.5%	¥91M ($585K)
2025-11-04	BUY	unknown	株式会社Wiz Wiz Co.,Ltd.	strategic	987.3K	¥396	+7.8%	¥391M ($2.5M)
2025-10-21	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	27.3K	¥393	+8.7%	¥983M ($6.3M)
2025-09-29	BUY	Market Buy	株式会社アイビー IB, Inc.	passive	119.1K	¥415	+2.9%	¥49M ($319K)
2025-09-29	BUY	Market Buy	株式会社エスアイエル SIL Co., Ltd.	passive	321.5K	¥415	+2.9%	¥133M ($861K)
2025-09-29	BUY	Market Buy	株式会社エヌオーアイ NIO Co., Ltd.	passive	292.4K	¥415	+2.9%	¥121M ($783K)
2025-09-29	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	282.6K	¥415	+2.9%	¥117M ($757K)
2025-09-29	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	282.6K	¥415	+2.9%	¥117M ($757K)
2025-09-29	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	330.5K	¥415	+2.9%	¥137M ($885K)
2025-09-22	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	230.9K	¥403	+6.0%	¥93M ($600K)
2025-06-06	BUY	Market Buy	株式会社アイビー IB, Inc.	passive	119.1K	¥394	+8.4%	¥47M ($303K)
2025-06-06	BUY	Market Buy	株式会社エヌオーアイ NIO Co., Ltd.	passive	292.4K	¥394	+8.4%	¥24M ($155K)
2025-06-06	BUY	Market Buy	株式会社エスアイエル SIL Co., Ltd.	passive	321.5K	¥394	+8.4%	¥127M ($817K)
2025-06-06	SELL	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	282.6K	¥394	-8.4%	¥24M ($155K)
2025-06-06	SELL	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	282.6K	¥394	-8.4%	¥47M ($303K)
2025-06-06	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	330.5K	¥394	+8.4%	¥130M ($840K)
2025-04-30	BUY	Market Buy	株式会社エヌオーアイ NIO Co., Ltd.	passive	231.3K	¥380	+12.4%	¥175K ($1K)
2025-04-30	BUY	Market Buy	株式会社エスアイエル SIL Co., Ltd.	passive	321.5K	¥380	+12.4%	¥122M ($788K)
2025-04-30	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	343.7K	¥380	+12.4%	¥131M ($843K)
2025-04-30	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	401.7K	¥380	+12.4%	¥153M ($985K)
2025-04-30	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	330.5K	¥380	+12.4%	¥126M ($810K)
2025-01-23	BUY	Market Buy	株式会社エヌオーアイ NIO Co., Ltd.	passive	230.6K	¥400	+6.8%	¥19M ($120K)
2025-01-23	BUY	Market Buy	株式会社エスアイエル SIL Co., Ltd.	passive	321.5K	¥400	+6.8%	¥129M ($830K)
2025-01-23	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	343.7K	¥400	+6.8%	¥137M ($887K)
2025-01-23	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	401.7K	¥400	+6.8%	¥161M ($1.0M)
2025-01-23	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	330.5K	¥400	+6.8%	¥132M ($853K)
2024-04-23	SELL	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	330.5K	¥602	+29.1%	¥554K ($4K)
2024-04-23	BUY	Market Buy	株式会社エヌオーアイ NIO Co., Ltd.	passive	184.4K	¥602	-29.1%	¥29M ($184K)
2024-04-23	SELL	Market Buy	株式会社エスアイエル SIL Co., Ltd.	passive	321.5K	¥602	+29.1%	¥554K ($4K)
2024-04-23	SELL	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	343.7K	¥602	+29.1%	¥554K ($4K)

Showing the 50 most recent of 126 filings.

Frequently asked questions

Who has been buying MS&Consulting Co., Ltd. stock?: 10 distinct investors have filed 32 disclosed large-shareholding filings in MS&Consulting Co., Ltd. (6555), most recently on 2026-04-28. 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 MS&Consulting Co., Ltd. have?: MS&Consulting Co., Ltd. has 32 buy-side and 19 sell-side disclosures on record, covering ¥1.3B ($8.4M) in total reported value, spanning 2021-03-18 to 2026-04-28.
Where does StockDrifts get MS&Consulting 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 MS&Consulting Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.