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

21 distinct investors have filed 37 disclosed large-shareholding filings in Tokyo Gas Co.,Ltd. (9531), most recently on 2026-05-07. 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 Tokyo Gas Co.,Ltd. have?

Tokyo Gas Co.,Ltd. has 37 buy-side and 29 sell-side disclosures on record, covering ¥196.1B ($1.3B) in total reported value, spanning 2021-10-04 to 2026-05-07.

Where does StockDrifts get Tokyo Gas 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.

Tokyo Gas Co.,Ltd. 9531

Company

東京瓦斯株式会社Tokyo Gas Co.,Ltd.

Investors

Buys

Total Value

¥196.1B ($1.3B)

Avg Return

+130.75%

Last Filing

2026-05-07

Tokyo Gas Co.,Ltd. (9531) has 37 disclosed large-shareholding filings and 29 disclosed disposals on record, filed by 21 distinct investors. Together those filings cover ¥196.1B ($1.3B) in reported transaction value. The earliest filing StockDrifts holds for Tokyo Gas Co.,Ltd. is dated 2021-10-04; the most recent is 2026-05-07. 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 +130.75%, 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
2026-06-05	BUY	unknown	ニッセイアセットマネジメント株式会社	other	321.8K	¥6,190	-2.5%	¥2.0B ($12.9M)
2026-06-05	SELL	Market Buy	日本生命保険相互会社	passive	21.0M	¥6,190	+2.5%	¥1.9B ($12.0M)
2026-05-22	BUY	unknown	ニッセイアセットマネジメント株式会社	other	338.0K	¥6,522	-5.3%	¥2.2B ($14.2M)
2026-05-22	BUY	Market Buy	日本生命保険相互会社	passive	21.3M	¥6,522	-5.3%	¥8.3B ($53.6M)
2026-05-07	BUY	Market Buy	ブラックロック・インベストメント・マネジメント(ユーケー)リミテッドLimited) BlackRock Investment Management (UK	passive	2.0M	¥6,812	-9.1%	¥10.5B ($67.7M)
2026-05-07	BUY	Market Buy	ブラックロック・インスティテューショナル・トラスト・カンパニー、エヌ.エイ. BlackRock Institutional Trust Company, N.A.	passive	5.1M	¥6,812	-9.1%	¥5.7B ($36.8M)
2026-05-07	BUY	Market Buy	ブラックロック・ファンド・アドバイザーズ BlackRock Fund Advisors	passive	7.0M	¥6,812	-9.1%	¥6.2B ($39.7M)
2026-05-07	BUY	Market Buy	ブラックロック・アセット・マネジメント・アイルランド・リミテッド BlackRock Asset Management Ireland Limited	passive	3.1M	¥6,812	-9.1%	¥3.4B ($22.1M)
2026-05-07	SELL	Market Buy	ブラックロック・アセット・マネジメント・カナダ・リミテッド BlackRock Asset Management Canada Limited	passive	664.5K	¥6,812	+9.1%	¥913M ($5.9M)
2026-05-07	BUY	Market Buy	ブラックロック・インベストメント・マネジメント (オーストラリア)リミテッドLimited) BlackRock Investment Management (Australia	passive	555.4K	¥6,812	-9.1%	¥685M ($4.4M)
2026-05-07	BUY	Market Buy	ブラックロック・インベストメント・マネジメント・エルエルシー BlackRock Investment Management LLC	passive	335.2K	¥6,812	-9.1%	¥2.3B ($14.7M)
2026-05-07	BUY	Market Buy	ブラックロック・アドバイザーズ・エルエルシー BlackRock Advisers, LLC	passive	361.0K	¥6,812	-9.1%	¥2.5B ($15.9M)
2026-05-07	BUY	Market Buy	ブラックロック・ジャパン株式会社	passive	6.5M	¥6,812	-9.1%	¥3.2B ($20.6M)
2026-05-07	BUY	Market Buy	ブラックロック・ファンド・マネジャーズ・リミテッド BlackRock Fund Managers Limited	passive	1.1M	¥6,812	-9.1%	¥1.6B ($10.3M)
2026-05-07	SELL	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	1.0M	¥6,812	+9.1%	¥456M ($2.9M)
2026-03-23	SELL	Market Buy	日本生命保険相互会社 Nippon Life Insurance Company	passive	22.2M	¥7,080	+6.2%	¥27.8B ($179.7M)
2026-01-22	SELL	Market Buy	日本生命保険相互会社 Nippon Life Insurance Company	passive	26.1M	¥6,706	+0.9%	¥35.3B ($228.0M)
2025-10-03	BUY	Market Buy	ブラックロック・インベストメント・マネジメント(ユーケー)リミテッドLimited) BlackRock Investment Management (UK	passive	488.9K	¥5,153	+28.9%	¥191M ($1.2M)
2025-10-03	SELL	Market Buy	ブラックロック・インスティテューショナル・トラスト・カンパニー、エヌ.エイ.(BlackRock Institutional Trust Company BlackRock Institutional Trust Company, N.A.	passive	4.7M	¥5,153	-28.9%	¥956M ($6.2M)
2025-10-03	SELL	Market Buy	ブラックロック・ファンド・アドバイザーズ BlackRock Fund Advisors	passive	6.8M	¥5,153	-28.9%	¥4.8B ($30.8M)
2025-10-03	SELL	Market Buy	ブラックロック・アセット・マネジメント・アイルランド・リミテッド BlackRock Asset Management Ireland Limited	passive	2.9M	¥5,153	-28.9%	¥2.9B ($18.5M)
2025-10-03	SELL	Market Buy	ブラックロック・アセット・マネジメント・カナダ・リミテッド BlackRock Asset Management Canada Limited	passive	886.7K	¥5,153	-28.9%	¥1.3B ($8.6M)
2025-10-03	BUY	Market Buy	ブラックロック・ファンド・マネジャーズ・リミテッド BlackRock Fund Managers Limited	passive	921.4K	¥5,153	+28.9%	¥574M ($3.7M)
2025-10-03	SELL	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	1.2M	¥5,153	-28.9%	¥5.5B ($35.8M)
2025-10-03	BUY	Market Buy	ブラックロック・インベストメント・マネジメント (オーストラリア)リミテッドLimited) BlackRock Investment Management (Australia	passive	517.0K	¥5,153	+28.9%	¥765M ($4.9M)
2025-10-03	BUY	Market Buy	ブラックロック・アドバイザーズ・エルエルシー(BlackRock Advisers BlackRock Advisers, LLC	passive	216.7K	¥5,153	+28.9%	¥112.8B ($727.9M)
2025-10-03	SELL	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	6.7M	¥5,153	-28.9%	¥4.6B ($29.6M)
2025-09-19	BUY	unknown	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	6.5M	¥5,389	+23.3%	¥4.8B ($31.0M)
2025-09-19	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	11.1M	¥5,389	-23.3%	¥9.8B ($63.2M)
2025-08-07	BUY	Market Buy	日本生命保険相互会社 Nippon Life Insurance Company	passive	31.4M	¥5,551	+19.7%	¥26.0B ($167.5M)
2025-04-14	SELL	unknown	エリオット・インベストメント・マネージメント・エルピー(Elliott Investment Management L.P.) Elliott Investment Management L.P.	activist	19.1M	¥4,846	-37.1%	¥2.3B ($14.6M)
2024-11-19	BUY	acquisition	エリオット・インベストメント・マネージメント・エルピー(Elliott Investment Management L.P.) Elliott Investment Management L.P.	activist	19.6M	¥3,820	+73.9%	¥74.7B ($481.9M)
2024-02-22	BUY	Market Buy	ニッセイアセットマネジメント株式会社 Nissay Asset Management Company	other	260.4K	¥3,303	+101.2%	¥78.9B ($508.8M)
2024-02-22	BUY	Market Buy	日本生命保険相互会社 Nippon Life Insurance Company	passive	31.3M	¥3,303	+101.2%	¥12.1B ($77.8M)
2023-08-03	BUY	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	8.9M	¥3,227	+105.9%	¥7.9B ($50.7M)
2023-08-03	SELL	Market Buy	ブラックロック・インスティテューショナル・トラスト・カンパニー、エヌ.エイ.(BlackRock Institutional Trust Company BlackRock Institutional Trust Company, N.A.	passive	5.7M	¥3,227	-105.9%	¥2.9B ($19.0M)
2023-08-03	BUY	Market Buy	ブラックロック・ファンド・アドバイザーズ BlackRock Fund Advisors	passive	9.0M	¥3,227	+105.9%	¥6.5B ($41.6M)
2023-08-03	BUY	Market Buy	ブラックロック・アセット・マネジメント・アイルランド・リミテッド BlackRock Asset Management Ireland Limited	passive	4.0M	¥3,227	+105.9%	¥2.7B ($17.2M)
2023-08-03	BUY	Market Buy	ブラックロック・アセット・マネジメント・カナダ・リミテッド BlackRock Asset Management Canada Limited	passive	1.3M	¥3,227	+105.9%	¥561M ($3.6M)
2023-08-03	BUY	Market Buy	ブラックロック・ファンド・マネジャーズ・リミテッド BlackRock Fund Managers Limited	passive	965.5K	¥3,227	+105.9%	¥140M ($905K)
2023-08-03	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	2.7M	¥3,227	+105.9%	¥842M ($5.4M)
2023-08-03	BUY	Market Buy	ブラックロック・インベストメント・マネジメント (オーストラリア)リミテッドLimited) BlackRock Investment Management (Australia	passive	456.3K	¥3,227	+105.9%	¥1.5B ($9.5M)
2023-08-03	SELL	Market Buy	ブラックロック・アドバイザーズ・エルエルシー(BlackRock Advisers BlackRock Advisers, LLC	passive	435.3K	¥3,227	-105.9%	¥421M ($2.7M)
2023-08-03	SELL	Market Buy	ブラックロック・インベストメント・マネジメント(ユーケー)リミテッドLimited) BlackRock Investment Management (UK	passive	530.7K	¥3,227	-105.9%	¥1.8B ($11.8M)
2021-10-21	SELL	Market Buy	ブラックロック・インベストメント・マネジメント(ユーケー)リミテッドLimited) BlackRock Investment Management (UK	passive	1.1M	¥1,904	-248.9%	¥3.3B ($21.1M)
2021-10-21	BUY	Market Buy	ブラックロック・インスティテューショナル・トラスト・カンパニー、エヌ.エイ.(BlackRock Institutional Trust Company BlackRock Institutional Trust Company, N.A.	passive	6.7M	¥1,904	+248.9%	¥1.5B ($9.8M)
2021-10-21	BUY	Market Buy	ブラックロック・ファンド・アドバイザーズ BlackRock Fund Advisors	passive	7.1M	¥1,904	+248.9%	¥1.5B ($9.8M)
2021-10-21	BUY	Market Buy	ブラックロック・アセット・マネジメント・アイルランド・リミテッド BlackRock Asset Management Ireland Limited	passive	3.2M	¥1,904	+248.9%	¥2.9B ($18.4M)
2021-10-21	BUY	Market Buy	ブラックロック・アセット・マネジメント・カナダ・リミテッド BlackRock Asset Management Canada Limited	passive	1.2M	¥1,904	+248.9%	¥336M ($2.2M)
2021-10-21	SELL	Market Buy	ブラックロック・ライフ・リミテッド BlackRock Life Limited	passive	357.0K	¥1,904	-248.9%	¥168M ($1.1M)

Showing the 50 most recent of 77 filings.

Frequently asked questions

Who has been buying Tokyo Gas Co.,Ltd. stock?: 21 distinct investors have filed 37 disclosed large-shareholding filings in Tokyo Gas Co.,Ltd. (9531), most recently on 2026-05-07. 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 Tokyo Gas Co.,Ltd. have?: Tokyo Gas Co.,Ltd. has 37 buy-side and 29 sell-side disclosures on record, covering ¥196.1B ($1.3B) in total reported value, spanning 2021-10-04 to 2026-05-07.
Where does StockDrifts get Tokyo Gas 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 Tokyo Gas Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.