Who has been buying Ceres Inc. stock?

13 distinct investors have filed 37 disclosed large-shareholding filings in Ceres Inc. (3696), most recently on 2026-03-05. 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 Ceres Inc. have?

Ceres Inc. has 37 buy-side and 26 sell-side disclosures on record, covering ¥4.6B ($29.5M) in total reported value, spanning 2021-03-17 to 2026-03-05.

Where does StockDrifts get Ceres Inc. 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.

Ceres Inc. 3696

Company

株式会社セレスCeres Inc.

Investors

Buys

Total Value

¥4.6B ($29.5M)

Avg Return

-10.68%

Last Filing

2026-03-05

Ceres Inc. (3696) has 37 disclosed large-shareholding filings and 26 disclosed disposals on record, filed by 13 distinct investors. Together those filings cover ¥4.6B ($29.5M) in reported transaction value. The earliest filing StockDrifts holds for Ceres Inc. is dated 2021-03-17; the most recent is 2026-03-05. 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 -10.68%, 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
2026-08-07	SELL	unknown	インベスコキャピタルマネジメントエルエルシー Invesco Capital Management LLC	other	172.3K	¥2,057	-0.4%	¥1.1B ($7.2M)
2026-08-05	SELL	unknown	都木聡	activist	727.2K	¥2,057	-0.4%	¥53M ($340K)
2026-08-05	SELL	unknown	有限会社ジュノー・アンド・カンパニー	strategic	1.2M	¥2,057	-0.4%	¥53M ($340K)
2026-07-23	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	881.5K	¥2,112	+2.2%	¥299M ($1.9M)
2026-07-07	SELL	unknown	インベスコキャピタルマネジメントエルエルシー Invesco Capital Management LLC	other	714.3K	¥2,129	+3.4%	¥262M ($1.7M)
2026-07-07	BUY	unknown	インベスコキャピタルマネジメントエルエルシー Invesco Capital Management LLC	other	714.3K	¥2,129	-3.4%	¥262M ($1.7M)
2026-03-05	BUY	Market Buy	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	831.9K	¥1,554	-0.3%	¥9M ($61K)
2025-11-19	SELL	unknown	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	825.8K	¥2,082	+25.6%	¥154M ($993K)
2025-09-05	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.0M	¥2,490	-37.8%	¥329M ($2.1M)
2025-08-21	BUY	Market Buy	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	900.5K	¥2,310	-32.9%	¥76M ($488K)
2025-08-06	BUY	Market Buy	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	867.2K	¥2,390	-35.1%	¥235M ($1.5M)
2025-08-05	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	341.8K	¥2,411	-35.7%	¥73M ($471K)
2025-08-05	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	500	¥2,411	+35.7%	¥292M ($1.9M)
2025-08-05	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	249.2K	¥2,411	+35.7%	¥552M ($3.6M)
2025-07-04	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	311.9K	¥2,342	-33.8%	¥730M ($4.7M)
2025-07-04	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	478.2K	¥2,342	-33.8%	¥1.1B ($7.2M)
2025-07-04	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	1.8K	¥2,342	-33.8%	¥4M ($27K)
2025-06-19	SELL	unknown	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	769.0K	¥2,318	+33.1%	¥70M ($453K)
2025-05-21	SELL	unknown	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	799.3K	¥1,912	+18.9%	¥7M ($45K)
2025-05-08	SELL	unknown	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	801.6K	¥2,115	+26.7%	¥36M ($231K)
2025-04-22	SELL	unknown	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	818.0K	¥2,129	+27.2%	¥87M ($564K)
2025-02-21	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	881.7K	¥2,675	+42.1%	¥343M ($2.2M)
2025-02-20	BUY	Market Buy	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	859.7K	¥2,739	-43.4%	¥533M ($3.4M)
2025-02-06	BUY	Market Buy	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	664.8K	¥2,950	-47.5%	¥71M ($460K)
2025-01-09	BUY	Market Buy	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	640.3K	¥2,816	-45.0%	¥17M ($110K)
2024-11-21	BUY	unknown	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	634.8K	¥2,329	-33.5%	¥1.5B ($9.5M)
2024-07-22	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.0M	¥1,641	-5.5%	¥242M ($1.6M)
2023-09-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	33.6K	¥996	+55.6%	¥7M ($46K)
2023-09-07	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	506.3K	¥996	+55.6%	¥497M ($3.2M)
2023-06-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	26.2K	¥1,010	+53.5%	¥26M ($171K)
2023-06-07	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	633.0K	¥1,010	+53.5%	¥631M ($4.1M)
2023-04-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	854.1K	¥1,298	+19.4%	¥1.1B ($7.2M)
2023-02-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	11.7K	¥1,065	+45.5%	¥12M ($80K)
2023-02-07	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	767.9K	¥1,065	+45.5%	¥174M ($1.1M)
2022-12-22	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	12.1K	¥875	+77.1%	¥11M ($68K)
2022-12-22	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	601.9K	¥875	+77.1%	¥527M ($3.4M)
2022-11-22	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	492.2K	¥947	-63.7%	¥173M ($1.1M)
2022-09-09	SELL	unknown	有限会社ジュノー・アンド・カンパニー Juno & Company Ltd.	strategic	1.2M	¥1,066	-45.4%	¥39M ($254K)
2022-09-09	SELL	unknown	都木聡 Satoshi Takagi	activist	740.5K	¥1,066	-45.4%	¥9M ($57K)
2022-09-05	SELL	unknown	高橋秀明 Hideaki Takahashi	other	550.0K	¥1,041	-48.9%	¥132M ($852K)
2022-08-22	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	670.9K	¥1,222	-26.8%	¥161M ($1.0M)
2022-08-04	SELL	unknown	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	347.9K	¥1,182	-31.1%	¥388M ($2.5M)
2022-07-07	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	6.4K	¥1,198	+29.4%	¥675M ($4.4M)
2022-07-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	802.5K	¥1,198	+29.4%	¥951M ($6.1M)
2022-07-06	SELL	unknown	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	675.4K	¥1,197	-29.5%	¥14M ($92K)
2022-06-06	SELL	unknown	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	687.2K	¥1,344	-15.3%	¥25M ($164K)
2022-05-19	SELL	unknown	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	703.7K	¥1,382	-12.2%	¥227M ($1.5M)
2022-05-19	BUY	unknown	インベスコキャピタルマネジメントエルエルシー (Invesco Capital Management LLC) Invesco Capital Management LLC	other	703.7K	¥1,382	+12.2%	¥227M ($1.5M)
2022-03-07	SELL	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	15.7K	¥1,301	-19.1%	¥46M ($298K)
2022-03-07	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	80.5K	¥1,301	+19.1%	¥11M ($69K)

Showing the 50 most recent of 77 filings.

Frequently asked questions

Who has been buying Ceres Inc. stock?: 13 distinct investors have filed 37 disclosed large-shareholding filings in Ceres Inc. (3696), most recently on 2026-03-05. 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 Ceres Inc. have?: Ceres Inc. has 37 buy-side and 26 sell-side disclosures on record, covering ¥4.6B ($29.5M) in total reported value, spanning 2021-03-17 to 2026-03-05.
Where does StockDrifts get Ceres Inc. 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 Ceres Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.