Who has been buying Sec Carbon, Limited stock?

8 distinct investors have filed 9 disclosed large-shareholding filings in Sec Carbon, Limited (5304), most recently on 2024-03-04. 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 Sec Carbon, Limited have?

Sec Carbon, Limited has 9 buy-side and 10 sell-side disclosures on record, covering ¥1.1B ($7.1M) in total reported value, spanning 2022-02-25 to 2024-03-04.

Where does StockDrifts get Sec Carbon, Limited 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.

Sec Carbon, Limited 5304

Company

SECカーボン株式会社Sec Carbon, Limited

Investors

Buys

Total Value

¥1.1B ($7.1M)

Avg Return

+66.48%

Last Filing

2024-03-04

Sec Carbon, Limited (5304) has 9 disclosed large-shareholding filings and 10 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥1.1B ($7.1M) in reported transaction value. The earliest filing StockDrifts holds for Sec Carbon, Limited is dated 2022-02-25; the most recent is 2024-03-04. 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 +66.48%, 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
2024-03-04	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	533.5K	¥2,718	-10.6%	¥1.4B ($9.4M)
2024-03-04	SELL	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.	unknown	0	¥2,718	+10.6%	¥326M ($2.1M)
2024-03-04	SELL	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	88.0K	¥2,718	+10.6%	¥73M ($472K)
2024-03-04	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	214.5K	¥2,718	+10.6%	¥214M ($1.4M)
2023-04-17	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	23.8K	¥1,660	+46.5%	¥40M ($255K)
2023-04-17	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	23.0K	¥1,660	+46.5%	¥38M ($246K)
2023-04-17	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	58.8K	¥1,660	+46.5%	¥98M ($630K)
2023-04-17	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	106.7K	¥1,660	+46.5%	¥177M ($1.1M)
2023-03-23	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	149.1K	¥1,640	-48.2%	¥96M ($622K)
2023-01-20	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	207.8K	¥1,374	+76.9%	¥286M ($1.8M)
2022-11-25	SELL	unknown	大谷智代 Tomoyo Otani	strategic	40.5K	¥1,322	-83.9%	¥13M ($81K)
2022-11-25	SELL	unknown	大谷壽一 Juichi Otani	strategic	1.0K	¥1,322	-83.9%	¥274M ($1.8M)
2022-11-25	BUY	unknown	大谷智代 Tomoyo Otani	strategic	1.0K	¥1,322	+83.9%	¥56M ($360K)
2022-11-25	BUY	unknown	大谷壽一 Juichi Otani	strategic	3.0K	¥1,322	+83.9%	¥331M ($2.1M)
2022-11-25	BUY	unknown	大谷智代 Tomoyo Otani	strategic	1.0K	¥1,322	+83.9%	¥56M ($360K)
2022-11-25	SELL	unknown	大谷壽一 Juichi Otani	strategic	1.0K	¥1,322	-83.9%	¥274M ($1.8M)
2022-11-25	BUY	unknown	大谷壽一 Juichi Otani	strategic	3.0K	¥1,322	+83.9%	¥331M ($2.1M)
2022-11-25	SELL	unknown	大谷智代 Tomoyo Otani	strategic	40.5K	¥1,322	-83.9%	¥13M ($81K)
2022-11-25	BUY	unknown	大谷製鉄株式会社 OTANI STEEL CORPORATION	strategic	796.0K	¥1,322	+83.9%	¥1.1B ($6.8M)
2022-11-25	BUY	unknown	大谷製鉄株式会社 OTANI STEEL CORPORATION	strategic	796.0K	¥1,322	+83.9%	¥1.1B ($6.8M)
2022-11-25	BUY	unknown	大谷製鉄株式会社 OTANI STEEL CORPORATION	strategic	796.0K	¥1,322	+83.9%	¥1.1B ($6.8M)
2022-11-25	BUY	unknown	大谷製鉄株式会社 OTANI STEEL CORPORATION	strategic	796.0K	¥1,322	+83.9%	¥1.1B ($6.8M)
2022-02-25	SELL	unknown	大谷壽一 Juichi Otani	strategic	39.2K	¥1,174	-107.1%	¥25M ($163K)
2022-02-25	SELL	unknown	大谷智代 Tomoyo Otani	strategic	50.0K	¥1,174	-107.1%	¥23M ($150K)
2022-02-25	BUY	unknown	大谷製鉄株式会社 OTANI STEEL CORPORATION	strategic	796.0K	¥1,174	+107.1%	¥935M ($6.0M)

Frequently asked questions

Who has been buying Sec Carbon, Limited stock?: 8 distinct investors have filed 9 disclosed large-shareholding filings in Sec Carbon, Limited (5304), most recently on 2024-03-04. 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 Sec Carbon, Limited have?: Sec Carbon, Limited has 9 buy-side and 10 sell-side disclosures on record, covering ¥1.1B ($7.1M) in total reported value, spanning 2022-02-25 to 2024-03-04.
Where does StockDrifts get Sec Carbon, Limited 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 Sec Carbon, Limited. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.