Who has been buying Shizuoka Gas Co., Ltd. stock?

8 distinct investors have filed 22 disclosed large-shareholding filings in Shizuoka Gas Co., Ltd. (9543), most recently on 2025-11-14. 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 Shizuoka Gas Co., Ltd. have?

Shizuoka Gas Co., Ltd. has 22 buy-side and 4 sell-side disclosures on record, covering ¥13.7B ($88.2M) in total reported value, spanning 2021-03-19 to 2025-11-14.

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.

Shizuoka Gas Co., Ltd. 9543

Company

静岡ガス株式会社Shizuoka Gas Co., Ltd.

Investors

Buys

Total Value

¥13.7B ($88.2M)

Avg Return

+31.69%

Last Filing

2025-11-14

Shizuoka Gas Co., Ltd. (9543) has 22 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥13.7B ($88.2M) in reported transaction value. The earliest filing StockDrifts holds for Shizuoka Gas Co., Ltd. is dated 2021-03-19; the most recent is 2025-11-14. Across these filings the average return since disclosure is +31.69%, 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
2025-11-14	BUY	unknown	東京瓦斯株式会社 TOKYO GAS CO.,LTD.	other	5.2M	¥1,164	-	¥896M ($5.8M)
2025-11-14	SELL	unknown	東京瓦斯株式会社 TOKYO GAS CO.,LTD.	other	5.2M	¥1,164	-17.7%	¥896M ($5.8M)
2024-03-07	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	unknown	0	¥936	-46.4%	¥26M ($170K)
2024-03-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	660.0K	¥936	+46.4%	¥609M ($3.9M)
2024-03-01	BUY	negotiated	鈴木與平 Yohei Suzuki	strategic	504.3K	¥924	-	-
2024-03-01	BUY	negotiated	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	13.6M	¥924	-	-
2024-03-01	BUY	negotiated	鈴与建設株式会社 Suzuyo Construction Co., Ltd.	strategic	10.6M	¥924	+48.3%	¥268M ($1.7M)
2024-03-01	BUY	negotiated	鈴與自動車運送株式会社 Suzuyo Motor Transport Co., Ltd.	other	726.9K	¥924	-	-
2023-06-01	BUY	negotiated	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	13.6M	¥1,179	-	-
2023-06-01	BUY	negotiated	鈴木與平 Yohei Suzuki	strategic	504.3K	¥1,179	-	-
2023-06-01	BUY	negotiated	鈴与建設株式会社 Suzuyo Construction Co., Ltd.	strategic	10.3M	¥1,179	+16.2%	¥907M ($5.9M)
2023-06-01	BUY	negotiated	鈴與自動車運送株式会社 Suzuyo Motor Transport Co., Ltd.	other	726.9K	¥1,179	-	-
2023-04-17	BUY	negotiated	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	13.6M	¥1,125	-	-
2023-04-17	BUY	negotiated	鈴木與平 Yohei Suzuki	strategic	504.3K	¥1,125	-	-
2023-04-17	BUY	negotiated	鈴与建設株式会社 Suzuyo Construction Co., Ltd.	strategic	9.5M	¥1,125	+21.8%	¥51M ($332K)
2023-04-17	BUY	negotiated	鈴與自動車運送株式会社 Suzuyo Motor Transport Co., Ltd.	other	726.9K	¥1,125	+21.8%	¥814M ($5.3M)
2023-01-19	BUY	negotiated	鈴木與平 Yohei Suzuki	strategic	504.3K	¥1,034	-	-
2023-01-19	BUY	negotiated	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	13.6M	¥1,034	-	-
2023-01-19	BUY	negotiated	鈴与建設株式会社 Suzuyo Construction Co., Ltd.	strategic	9.5M	¥1,034	+32.5%	¥819M ($5.3M)
2022-11-28	BUY	negotiated	鈴与建設株式会社 Suzuyo Construction Co., Ltd.	strategic	8.7M	¥1,104	+24.1%	¥858M ($5.5M)
2022-11-28	BUY	negotiated	鈴木與平 Yohei Suzuki	strategic	504.3K	¥1,104	-	-
2022-11-28	BUY	negotiated	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	13.6M	¥1,104	-	-
2022-10-19	BUY	negotiated	鈴木與平 Yohei Suzuki	strategic	504.3K	¥1,057	-	-
2022-10-19	BUY	negotiated	鈴与建設株式会社 Suzuyo Construction Co., Ltd.	strategic	7.9M	¥1,057	+29.6%	¥813M ($5.2M)
2022-10-19	BUY	negotiated	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	13.6M	¥1,057	-	-
2022-08-08	BUY	negotiated	鈴木與平 Yohei Suzuki	strategic	504.3K	¥1,059	-	-
2022-08-08	BUY	negotiated	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	13.6M	¥1,059	+29.4%	¥145M ($937K)
2022-08-08	BUY	Market Buy	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	13.6M	¥1,059	+29.4%	¥145M ($937K)
2022-08-08	BUY	Market Buy	鈴木與平 Yohei Suzuki	strategic	504.3K	¥1,059	-	-
2022-08-08	BUY	Market Buy	鈴与建設株式会社 Suzuyo Construction Co., Ltd.	strategic	7.2M	¥1,059	+29.4%	¥694M ($4.5M)
2022-08-08	BUY	negotiated	鈴与建設株式会社 Suzuyo Construction Co., Ltd.	strategic	7.2M	¥1,059	+29.4%	¥694M ($4.5M)
2022-06-22	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	2.8M	¥831	-	-
2022-06-22	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.2M	¥831	-64.9%	¥677M ($4.4M)
2021-10-07	BUY	Market Buy	鈴木與平 Yohei Suzuki	strategic	504.3K	¥1,313	-	-
2021-10-07	BUY	negotiated	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	13.5M	¥1,313	+4.3%	¥1.0B ($6.6M)
2021-10-07	BUY	Market Buy	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	13.5M	¥1,313	+4.3%	¥1.0B ($6.6M)
2021-10-07	BUY	Market Buy	鈴与建設株式会社 Suzuyo Construction Co., Ltd.	strategic	6.5M	¥1,313	-	-
2021-10-07	BUY	negotiated	鈴木與平 Yohei Suzuki	strategic	504.3K	¥1,313	-	-
2021-10-07	BUY	negotiated	鈴与建設株式会社 Suzuyo Construction Co., Ltd.	strategic	6.5M	¥1,313	-	-
2021-08-17	BUY	Market Buy	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	12.7M	¥1,200	+14.2%	¥942M ($6.1M)
2021-08-17	BUY	Market Buy	鈴与建設株式会社 Suzuyo Construction Co., Ltd.	strategic	6.5M	¥1,200	-	-
2021-08-17	BUY	Market Buy	鈴木與平 Yohei Suzuki	strategic	504.3K	¥1,200	-	-
2021-08-03	BUY	Market Buy	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	11.9M	¥1,175	+16.6%	¥1.0B ($6.5M)
2021-08-03	BUY	Market Buy	鈴木與平 Yohei Suzuki	strategic	504.3K	¥1,175	-	-
2021-08-03	BUY	Market Buy	鈴与建設株式会社 Suzuyo Construction Co., Ltd.	strategic	6.5M	¥1,175	-	-
2021-07-19	BUY	Market Buy	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	11.1M	¥1,073	+27.7%	¥842M ($5.4M)
2021-07-19	BUY	Market Buy	鈴木與平 Yohei Suzuki	strategic	504.3K	¥1,073	-	-
2021-07-19	BUY	Market Buy	鈴与建設株式会社 Suzuyo Construction Co., Ltd.	strategic	6.5M	¥1,073	-	-
2021-07-07	BUY	Market Buy	鈴与商事株式会社 Suzuyo Shoji Co., Ltd.	strategic	10.3M	¥1,029	+33.1%	¥792M ($5.1M)
2021-07-07	BUY	Market Buy	鈴木與平 Yohei Suzuki	strategic	504.3K	¥1,029	-	-

Showing the 50 most recent of 62 filings.

Frequently asked questions

Who has been buying Shizuoka Gas Co., Ltd. stock?: 8 distinct investors have filed 22 disclosed large-shareholding filings in Shizuoka Gas Co., Ltd. (9543), most recently on 2025-11-14. 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 Shizuoka Gas Co., Ltd. have?: Shizuoka Gas Co., Ltd. has 22 buy-side and 4 sell-side disclosures on record, covering ¥13.7B ($88.2M) in total reported value, spanning 2021-03-19 to 2025-11-14.
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.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.