Who has been buying Yashima & Co.,Ltd. stock?

10 distinct investors have filed 12 disclosed large-shareholding filings in Yashima & Co.,Ltd. (7677), most recently on 2024-12-19. 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 Yashima & Co.,Ltd. have?

Yashima & Co.,Ltd. has 12 buy-side and 8 sell-side disclosures on record, covering ¥181M ($1.2M) in total reported value, spanning 2021-03-18 to 2024-12-19.

Where does StockDrifts get Yashima & 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.

Yashima & Co.,Ltd. 7677

Company

株式会社ヤシマキザイYashima & Co.,Ltd.

Investors

Buys

Total Value

¥181M ($1.2M)

Avg Return

+25.82%

Last Filing

2024-12-19

Yashima & Co.,Ltd. (7677) has 12 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥181M ($1.2M) in reported transaction value. The earliest filing StockDrifts holds for Yashima & Co.,Ltd. is dated 2021-03-18; the most recent is 2024-12-19. 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 +25.82%, 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
2024-12-19	BUY	Market Buy	GLOBAL MANAGEMENT PARTNERS LIMITED Global Management Partners Limited	passive	773.2K	¥2,106	+19.5%	¥61M ($391K)
2024-12-19	BUY	Market Buy	GLOBAL MANAGEMENT PARTNERS LIMITED Global Management Partners Limited	passive	773.2K	¥2,106	+19.5%	¥61M ($391K)
2024-10-23	BUY	Market Buy	関正一郎 Shoichiro Seki	activist	223.1K	¥1,995	+26.2%	¥3M ($22K)
2024-10-23	SELL	Market Buy	関年子 Toshiko Seki	strategic	166.2K	¥1,995	-26.2%	¥3M ($19K)
2024-10-23	BUY	Market Buy	佐藤泰子 Yasuko Sato	strategic	337.8K	¥1,995	+26.2%	¥674M ($4.3M)
2024-10-23	BUY	Market Buy	佐藤厚 Atushi,Sato	activist	200.2K	¥1,995	+26.2%	¥2M ($11K)
2024-10-23	BUY	Market Buy	一般社団法人アカデミア・ヤシマ Academia Yashima General Incorporated Association	strategic	50.0K	¥1,995	+26.2%	¥100M ($644K)
2022-12-27	SELL	Market Buy	関年子 Toshiko Seki	strategic	167.6K	¥1,999	-25.9%	¥6M ($37K)
2022-12-27	BUY	Market Buy	関正一郎 Shoichiro Seki	activist	221.6K	¥1,999	+25.9%	¥3M ($19K)
2022-12-27	BUY	Market Buy	一般社団法人アカデミア・ヤシマ Academia Yashima General Incorporated Association	strategic	50.0K	¥1,999	+25.9%	¥100M ($645K)
2022-12-27	BUY	Market Buy	佐藤泰子 Yasuko Sato	strategic	337.8K	¥1,999	+25.9%	¥675M ($4.4M)
2022-12-27	BUY	Market Buy	佐藤厚 Atushi,Sato	activist	199.4K	¥1,999	+25.9%	¥5M ($33K)
2022-04-12	BUY	Market Buy	GLOBAL MANAGEMENT PARTNERS LIMITED Global Management Partners Limited	passive	744.4K	¥1,902	+32.3%	¥1M ($7K)
2022-04-12	BUY	Market Buy	株式会社鹿児島東インド会社 Kagoshima East India Inc	passive	500	¥1,902	+32.3%	¥951K ($6K)
2022-04-12	BUY	Market Buy	株式会社鹿児島東インド会社 Kagoshima East India Inc	passive	500	¥1,902	+32.3%	¥951K ($6K)
2022-04-12	SELL	Market Buy	重田光時 Mitsutoki Shigeta	passive	500	¥1,902	-32.3%	¥55M ($353K)
2022-04-12	BUY	Market Buy	GLOBAL MANAGEMENT PARTNERS LIMITED Global Management Partners Limited	passive	744.4K	¥1,902	+32.3%	¥1M ($7K)
2022-04-12	SELL	Market Buy	重田光時 Mitsutoki Shigeta	passive	500	¥1,902	-32.3%	¥55M ($353K)
2022-04-04	BUY	Market Buy	GLOBAL MANAGEMENT PARTNERS LIMITED Global Management Partners Limited	passive	744.0K	¥1,955	+28.8%	¥1.5B ($9.4M)
2022-04-04	SELL	Market Buy	Hikari Investment BVI Limited	passive	0	¥1,955	-28.8%	¥56M ($360K)
2022-04-04	BUY	Market Buy	株式会社鹿児島東インド会社 Kagoshima East India Inc	passive	500	¥1,955	+28.8%	¥978K ($6K)
2022-04-04	SELL	Market Buy	重田光時 Mitsutoki Shigeta	passive	900	¥1,955	-28.8%	¥1.2B ($7.9M)
2021-12-15	BUY	Market Buy	Hikari Investment BVI Limited	passive	28.4K	¥2,054	+22.5%	¥58M ($376K)
2021-12-15	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	710.4K	¥2,054	+22.5%	¥53M ($340K)
2021-12-15	BUY	Market Buy	株式会社鹿児島東インド会社 Kagoshima East India Inc	passive	500	¥2,054	+22.5%	¥1M ($7K)
2021-09-28	BUY	Market Buy	株式会社鹿児島東インド会社 Kagoshima East India Inc	passive	500	¥2,506	+0.4%	¥1M ($8K)
2021-09-28	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	684.9K	¥2,506	+0.4%	¥13M ($84K)
2021-09-28	SELL	Market Buy	Hikari Investment BVI Limited	passive	28.4K	¥2,506	-0.4%	¥1.2B ($7.5M)
2021-08-17	BUY	Market Buy	関正一郎 Shoichiro Seki	activist	220.1K	¥1,958	+28.6%	¥5M ($29K)
2021-08-17	BUY	Market Buy	関年子 Toshiko Seki	strategic	170.4K	¥1,958	+28.6%	¥334M ($2.2M)
2021-08-17	BUY	Market Buy	一般社団法人アカデミア・ヤシマ Academia Yashima General Incorporated Association	strategic	50.0K	¥1,958	+28.6%	¥98M ($632K)
2021-08-17	SELL	Market Buy	佐藤泰子 Yasuko Sato	strategic	337.8K	¥1,958	-28.6%	¥29M ($189K)
2021-08-17	BUY	Market Buy	佐藤厚 Atushi,Sato	activist	196.6K	¥1,958	+28.6%	¥5M ($33K)
2021-05-20	BUY	Market Buy	東京中小企業投資育成株式会社 TOKYO SMALL AND MEDIUM BUSINESS INVESTMENT & CONSULTATION CO.,LTD	passive	200.0K	¥1,920	+31.1%	¥384M ($2.5M)
2021-03-18	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	679.6K	¥1,780.279	+41.4%	¥44M ($281K)

Frequently asked questions

Who has been buying Yashima & Co.,Ltd. stock?: 10 distinct investors have filed 12 disclosed large-shareholding filings in Yashima & Co.,Ltd. (7677), most recently on 2024-12-19. 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 Yashima & Co.,Ltd. have?: Yashima & Co.,Ltd. has 12 buy-side and 8 sell-side disclosures on record, covering ¥181M ($1.2M) in total reported value, spanning 2021-03-18 to 2024-12-19.
Where does StockDrifts get Yashima & 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 Yashima & Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.