Who has been buying Interworks Confidence Inc. stock?

9 distinct investors have filed 11 disclosed large-shareholding filings in Interworks Confidence Inc. (7374), most recently on 2025-10-02. 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 Interworks Confidence Inc. have?

Interworks Confidence Inc. has 11 buy-side and 17 sell-side disclosures on record, covering ¥3.8B ($24.5M) in total reported value, spanning 2021-06-30 to 2025-10-02.

Where does StockDrifts get Interworks Confidence 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.

Interworks Confidence Inc. 7374

Company

株式会社コンフィデンス・インターワークスInterworks Confidence Inc.

Investors

Buys

Total Value

¥3.8B ($24.5M)

Avg Return

-30.30%

Last Filing

2025-10-02

Interworks Confidence Inc. (7374) has 11 disclosed large-shareholding filings and 17 disclosed disposals on record, filed by 9 distinct investors. Together those filings cover ¥3.8B ($24.5M) in reported transaction value. The earliest filing StockDrifts holds for Interworks Confidence Inc. is dated 2021-06-30; the most recent is 2025-10-02. 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 -30.30%, 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
2025-10-02	SELL	unknown	株式会社アミューズキャピタル Amuse Capital Inc.	strategic	1.4M	¥1,546	+1.8%	¥19M ($121K)
2025-10-02	SELL	unknown	株式会社A.C企画 A.C Planning Co., Ltd.	strategic	102.5K	¥1,546	+1.8%	¥1M ($7K)
2025-10-02	SELL	unknown	中山隼雄 Hayao Nakayama	strategic	406.0K	¥1,546	+1.8%	¥5M ($33K)
2025-10-02	SELL	unknown	株式会社アミューズキャピタルインベストメント Amuse Capital Investment Inc.	strategic	1.1M	¥1,546	+1.8%	¥80M ($515K)
2024-05-17	SELL	unknown	株式会社A.C企画 A.C Planning Co., Ltd.	strategic	102.5K	¥1,760	+13.8%	¥1M ($8K)
2024-05-17	SELL	unknown	中山晴喜 Haruki Nakayama	unknown	0	¥1,760	+13.8%	¥145M ($937K)
2024-05-17	SELL	unknown	中山隼雄 Hayao Nakayama	strategic	406.0K	¥1,760	+13.8%	¥170M ($1.1M)
2024-05-17	SELL	unknown	株式会社アミューズキャピタルインベストメント Amuse Capital Investment Inc.	strategic	1.2M	¥1,760	+13.8%	¥878M ($5.7M)
2024-05-17	SELL	unknown	株式会社アミューズキャピタル Amuse Capital Inc.	strategic	1.4M	¥1,760	+13.8%	¥18M ($113K)
2023-08-22	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	228.9K	¥1,619	-6.2%	¥365M ($2.4M)
2023-08-22	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	1.1K	¥1,619	-6.2%	¥153M ($987K)
2023-08-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	26.3K	¥1,681	-9.7%	¥44M ($286K)
2023-08-07	BUY	Market Buy	株式会社A.C企画 A.C Planning Co., Ltd.	strategic	102.5K	¥1,681	-9.7%	¥172M ($1.1M)
2023-08-07	BUY	Market Buy	中山晴喜 Haruki Nakayama	strategic	82.0K	¥1,681	-9.7%	¥138M ($889K)
2023-08-07	SELL	Market Buy	中山隼雄 Hayao Nakayama	strategic	499.0K	¥1,681	+9.7%	¥371M ($2.4M)
2023-08-07	SELL	Market Buy	株式会社アミューズキャピタルインベストメント Amuse Capital Investment Inc.	strategic	1.6M	¥1,681	+9.7%	¥845M ($5.5M)
2023-08-07	BUY	Market Buy	株式会社アミューズキャピタル Amuse Capital Inc.	strategic	1.4M	¥1,681	-9.7%	¥409M ($2.6M)
2023-08-07	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	228.8K	¥1,681	-9.7%	¥385M ($2.5M)
2022-07-27	BUY	unknown	中山隼雄 Hayao Nakayama	strategic	499.0K	¥1,755	-13.5%	¥876M ($5.6M)
2022-07-27	SELL	unknown	株式会社アミューズキャピタルインベストメント Amuse Capital Investment Inc.	strategic	1.5M	¥1,755	+13.5%	¥175M ($1.1M)
2022-07-27	BUY	unknown	株式会社アミューズキャピタル Amuse Capital Inc.	strategic	804.0K	¥1,755	-13.5%	¥1.4B ($9.1M)
2022-05-18	SELL	unknown	株式会社アミューズキャピタル Amuse Capital Inc.	strategic	804.0K	¥1,639	+7.4%	¥6M ($39K)
2022-05-18	SELL	unknown	中山隼雄 Hayao Nakayama	strategic	499.0K	¥1,639	+7.4%	¥4M ($24K)
2022-05-18	SELL	unknown	株式会社アミューズキャピタルインベストメント Amuse Capital Investment Inc.	strategic	1.6M	¥1,639	+7.4%	¥12M ($77K)
2021-12-03	BUY	Market Buy	SBI Ventures Two株式会社 SBI Ventures Two Co., Ltd.	passive	177.1K	¥2,029	-25.2%	¥355M ($2.3M)
2021-12-03	SELL	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	11.1K	¥2,029	+25.2%	¥14M ($90K)
2021-07-27	SELL	unknown	中山隼雄 Hayao Nakayama	strategic	499.0K	¥3,265	+53.5%	¥265M ($1.7M)
2021-07-27	BUY	unknown	株式会社アミューズキャピタルインベストメント Amuse Capital Investment Inc.	strategic	1.6M	¥3,265	-53.5%	¥5.2B ($33.4M)
2021-07-27	BUY	unknown	株式会社アミューズキャピタル Amuse Capital Inc.	strategic	804.0K	¥3,265	-53.5%	¥2.6B ($16.9M)
2021-07-07	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	18.0K	¥3,670	-58.6%	¥66M ($426K)
2021-07-07	BUY	Market Buy	SBI Ventures Two株式会社 SBI Ventures Two Co., Ltd.	passive	215.9K	¥3,670	-58.6%	¥792M ($5.1M)
2021-06-30	BUY	unknown	中山隼雄 Hayao Nakayama	strategic	580.0K	¥3,020	-49.7%	¥1.8B ($11.3M)
2021-06-30	BUY	unknown	株式会社アミューズキャピタルインベストメント Amuse Capital Investment Inc.	strategic	1.6M	¥3,020	-49.7%	¥4.8B ($30.9M)
2021-06-30	BUY	unknown	株式会社アミューズキャピタル Amuse Capital Inc.	strategic	804.0K	¥3,020	-49.7%	¥2.4B ($15.7M)

Frequently asked questions

Who has been buying Interworks Confidence Inc. stock?: 9 distinct investors have filed 11 disclosed large-shareholding filings in Interworks Confidence Inc. (7374), most recently on 2025-10-02. 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 Interworks Confidence Inc. have?: Interworks Confidence Inc. has 11 buy-side and 17 sell-side disclosures on record, covering ¥3.8B ($24.5M) in total reported value, spanning 2021-06-30 to 2025-10-02.
Where does StockDrifts get Interworks Confidence 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 Interworks Confidence Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.