Who has been buying The Monogatari Corporation stock?

10 distinct investors have filed 19 disclosed large-shareholding filings in The Monogatari Corporation (3097), most recently on 2025-06-02. 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 The Monogatari Corporation have?

The Monogatari Corporation has 19 buy-side and 35 sell-side disclosures on record, covering ¥5.0B ($32.5M) in total reported value, spanning 2021-05-11 to 2025-06-02.

Where does StockDrifts get The Monogatari Corporation 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.

The Monogatari Corporation 3097

Company

株式会社物語コーポレーションThe Monogatari Corporation

Investors

Buys

Total Value

¥5.0B ($32.5M)

Avg Return

+78.47%

Last Filing

2025-06-02

The Monogatari Corporation (3097) has 19 disclosed large-shareholding filings and 35 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥5.0B ($32.5M) in reported transaction value. The earliest filing StockDrifts holds for The Monogatari Corporation is dated 2021-05-11; the most recent is 2025-06-02. 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 +78.47%, 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
2025-06-02	SELL	unknown	小林早苗 Sanae Kobayashi	activist	778.4K	¥3,575	-25.3%	¥70M ($452K)
2025-06-02	SELL	unknown	小林佳雄 yoshio kobayashi	activist	1.4M	¥3,575	-25.3%	¥1.4B ($9.0M)
2025-05-30	SELL	unknown	小林早苗 Sanae Kobayashi	activist	778.4K	¥3,585	-25.0%	¥1.3B ($8.2M)
2025-05-30	SELL	unknown	小林佳雄 yoshio kobayashi	activist	1.7M	¥3,585	-25.0%	¥369M ($2.4M)
2025-05-20	SELL	unknown	小林早苗 Sanae Kobayashi	activist	778.4K	¥3,445	-30.0%	¥1.3B ($8.5M)
2025-05-20	SELL	unknown	小林早苗 Sanae Kobayashi	activist	778.4K	¥3,445	-30.0%	¥1.3B ($8.5M)
2025-05-20	SELL	unknown	小林佳雄 yoshio kobayashi	activist	1.7M	¥3,445	-30.0%	¥689M ($4.4M)
2025-05-20	SELL	unknown	小林佳雄 yoshio kobayashi	activist	1.7M	¥3,445	-30.0%	¥689M ($4.4M)
2024-09-30	SELL	Market Buy	エーエージーエス・インベストメント・インク(AAGS Investment, Inc.) AAGS Investment, Inc.	passive	1.8M	¥3,890	-15.2%	¥1.2B ($7.6M)
2024-09-17	SELL	subscription	エーエージーエス・インベストメント・インク(AAGS Investment, Inc.) AAGS Investment, Inc.	passive	2.1M	¥3,645	-22.9%	¥1.0B ($6.7M)
2024-09-05	SELL	subscription	エーエージーエス・インベストメント・インク(AAGS Investment, Inc.) AAGS Investment, Inc.	passive	2.4M	¥3,545	-26.4%	¥1.4B ($8.9M)
2024-08-15	BUY	subscription	エーエージーエス・インベストメント・インク(AAGS Investment, Inc.) AAGS Investment, Inc.	passive	2.8M	¥3,300	+35.8%	¥156M ($1.0M)
2024-05-21	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	543.0K	¥3,665	-22.2%	¥13M ($86K)
2024-05-21	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	911.8K	¥3,665	-22.2%	¥1.5B ($9.4M)
2023-11-07	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	543.7K	¥4,025	+11.3%	¥44M ($283K)
2023-11-07	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	1.3M	¥4,025	-11.3%	¥717M ($4.6M)
2023-07-24	BUY	unknown	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	532.7K	¥3,460	+29.5%	¥1.8B ($11.8M)
2023-07-24	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	103.5K	¥3,460	+29.5%	¥313M ($2.0M)
2023-07-21	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	535.4K	¥3,440	-30.2%	¥38M ($242K)
2023-07-21	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	1.5M	¥3,440	-30.2%	¥988M ($6.4M)
2023-05-19	BUY	unknown	小林早苗 Sanae Kobayashi	activist	1.1M	¥3,180	+40.9%	¥3.4B ($22.1M)
2023-05-19	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	546.0K	¥3,180	-40.9%	¥46M ($298K)
2023-05-19	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	1.8M	¥3,180	-40.9%	¥751M ($4.8M)
2023-05-19	SELL	unknown	小林佳雄 yoshio kobayashi	activist	1.8M	¥3,180	-40.9%	¥2.1B ($13.7M)
2023-02-07	SELL	unknown	小林早苗 Sanae Kobayashi	activist	359.5K	¥2,149.79	-108.4%	¥250M ($1.6M)
2023-02-07	SELL	unknown	小林佳雄 yoshio kobayashi	activist	809.7K	¥2,149.79	-108.4%	¥443M ($2.9M)
2022-12-07	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	377.1K	¥2,286.44	+95.9%	¥862M ($5.6M)
2022-12-07	BUY	unknown	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	267.3K	¥2,286.44	+95.9%	¥611M ($3.9M)
2022-12-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	186.8K	¥2,276.44	+96.8%	¥88M ($570K)
2022-12-06	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	670.1K	¥2,276.44	-96.8%	¥116M ($748K)
2022-06-06	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	147.6K	¥1,946.47	-130.2%	¥7M ($46K)
2022-06-06	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	721.3K	¥1,946.47	-130.2%	¥66M ($426K)
2022-02-07	SELL	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	257.5K	¥2,093.12	-114.0%	¥46M ($294K)
2022-02-07	SELL	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	255.8K	¥2,093.12	-114.0%	¥250M ($1.6M)
2022-01-21	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	480.5K	¥2,053.13	+118.2%	¥976M ($6.3M)
2022-01-21	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	1.6K	¥2,053.13	+118.2%	¥117M ($752K)
2022-01-11	SELL	unknown	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	375.9K	¥2,063.13	-117.2%	¥150M ($965K)
2022-01-11	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	278.8K	¥2,063.13	-117.2%	¥232M ($1.5M)
2022-01-07	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	753.3K	¥2,066.46	-116.8%	¥35M ($226K)
2022-01-07	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	151.6K	¥2,066.46	-116.8%	¥150M ($967K)
2021-12-17	BUY	subscription	エーエージーエス・インベストメント・インク(AAGS Investment, Inc.) AAGS Investment, Inc.	passive	945.7K	¥2,169.78	+106.5%	¥2.1B ($13.2M)
2021-12-17	BUY	subscription	エーエージーエス・インベストメント・インク(AAGS Investment, Inc.) AAGS Investment, Inc.	passive	945.7K	¥2,169.78	+106.5%	¥8M ($51K)
2021-12-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	223.6K	¥2,383.09	+88.0%	¥533M ($3.4M)
2021-12-06	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	769.9K	¥2,383.09	-88.0%	¥179M ($1.2M)
2021-11-08	SELL	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	447.5K	¥2,426.42	-84.6%	¥9M ($57K)
2021-11-08	SELL	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	0	¥2,426.42	-84.6%	¥41M ($265K)
2021-11-08	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	391.1K	¥2,426.42	+84.6%	¥343M ($2.2M)
2021-10-22	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	16.9K	¥2,433.09	+84.1%	¥41M ($265K)
2021-10-22	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	249.8K	¥2,433.09	+84.1%	¥608M ($3.9M)
2021-10-22	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	451.4K	¥2,433.09	+84.1%	¥1.1B ($7.1M)

Showing the 50 most recent of 58 filings.

Frequently asked questions

Who has been buying The Monogatari Corporation stock?: 10 distinct investors have filed 19 disclosed large-shareholding filings in The Monogatari Corporation (3097), most recently on 2025-06-02. 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 The Monogatari Corporation have?: The Monogatari Corporation has 19 buy-side and 35 sell-side disclosures on record, covering ¥5.0B ($32.5M) in total reported value, spanning 2021-05-11 to 2025-06-02.
Where does StockDrifts get The Monogatari Corporation 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 The Monogatari Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.