Who has been buying Paramount Bed Holdings Co., Ltd. stock?

28 distinct investors have filed 43 disclosed large-shareholding filings in Paramount Bed Holdings Co., Ltd. (7817), most recently on 2026-02-05. 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 Paramount Bed Holdings Co., Ltd. have?

Paramount Bed Holdings Co., Ltd. has 43 buy-side and 15 sell-side disclosures on record, covering ¥23.8B ($153.5M) in total reported value, spanning 2021-12-08 to 2026-02-05.

Where does StockDrifts get Paramount Bed Holdings 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.

Paramount Bed Holdings Co., Ltd. 7817

Company

パラマウントベッドホールディングス株式会社Paramount Bed Holdings Co., Ltd.

Investors

Buys

Total Value

¥23.8B ($153.5M)

Avg Return

+21.21%

Last Filing

2026-02-05

Paramount Bed Holdings Co., Ltd. (7817) has 43 disclosed large-shareholding filings and 15 disclosed disposals on record, filed by 28 distinct investors. Together those filings cover ¥23.8B ($153.5M) in reported transaction value. The earliest filing StockDrifts holds for Paramount Bed Holdings Co., Ltd. is dated 2021-12-08; the most recent is 2026-02-05. 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 +21.21%, 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
2026-02-05	BUY	unknown	株式会社ＴＭＫＲ TMKR Co., Ltd.	activist	45.3M	¥3,515	+0.0%	¥159.1B ($1.0B)
2026-01-29	BUY	Market Buy	クレディアンドスリエルエコメルシアル(CREDIT INDUSTRIEL ET COMMERCIAL) CREDIT INDUSTRIEL ET COMMERCIAL	passive	3.5M	¥3,510	+0.1%	¥2.0B ($13.2M)
2025-12-24	BUY	acquisition	クレディアンドスリエルエコメルシアル(CREDIT INDUSTRIEL ET COMMERCIAL) CREDIT INDUSTRIEL ET COMMERCIAL	passive	2.9M	¥3,510	+0.1%	¥10.1B ($65.4M)
2025-12-04	SELL	unknown	野村アセットマネジメント株式会社	other	389.3K	¥3,505	-0.3%	¥1.4B ($8.8M)
2025-12-04	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	309.0K	¥3,505	-0.3%	¥1.1B ($7.0M)
2025-12-04	SELL	unknown	野村證券株式会社	other	1.4K	¥3,505	-0.3%	¥5M ($33K)
2025-11-25	BUY	unknown	株式会社ラムーン	other	52	¥3,510	-0.1%	¥183K ($1K)
2025-11-25	BUY	unknown	木村通秀	other	820.4K	¥3,510	-0.1%	¥2.9B ($18.6M)
2025-11-25	BUY	unknown	有限会社レッジウッド	other	4.1M	¥3,510	-0.1%	¥14.6B ($94.0M)
2025-11-25	BUY	unknown	株式会社シオン	other	1.4M	¥3,510	-0.1%	¥4.8B ($31.2M)
2025-11-25	BUY	unknown	木村憲司	activist	1.7M	¥3,510	-0.1%	¥6.1B ($39.2M)
2025-11-25	BUY	unknown	株式会社ラピスラズリ	other	1.4M	¥3,510	-0.1%	¥4.8B ($31.2M)
2025-11-25	BUY	unknown	株式会社シートック	other	4.3M	¥3,510	-0.1%	¥15.0B ($96.7M)
2025-11-25	BUY	unknown	株式会社ワイズライト	other	1.4M	¥3,510	-0.1%	¥4.8B ($31.2M)
2025-11-25	BUY	unknown	木村友彦	activist	1.8M	¥3,510	-0.1%	¥6.3B ($40.4M)
2025-11-25	BUY	unknown	株式会社TMKR	activist	28.4M	¥3,510	-0.1%	¥99.8B ($643.8M)
2025-11-25	BUY	acquisition	株式会社ラムーン	other	52	¥3,510	+0.1%	¥183K ($1K)
2025-11-25	BUY	acquisition	木村通秀	other	820.4K	¥3,510	+0.1%	¥2.9B ($18.6M)
2025-11-25	BUY	acquisition	有限会社レッジウッド	other	4.1M	¥3,510	+0.1%	¥14.6B ($94.0M)
2025-11-25	BUY	acquisition	株式会社シオン	other	1.4M	¥3,510	+0.1%	¥4.8B ($31.2M)
2025-11-25	BUY	acquisition	木村憲司	activist	1.7M	¥3,510	+0.1%	¥6.1B ($39.2M)
2025-11-25	BUY	acquisition	株式会社ラピスラズリ	other	1.4M	¥3,510	+0.1%	¥4.8B ($31.2M)
2025-11-25	BUY	acquisition	株式会社シートック	other	4.3M	¥3,510	+0.1%	¥15.0B ($96.7M)
2025-11-25	BUY	acquisition	株式会社ワイズライト	other	1.4M	¥3,510	+0.1%	¥4.8B ($31.2M)
2025-11-25	BUY	acquisition	木村友彦	activist	1.8M	¥3,510	+0.1%	¥6.3B ($40.4M)
2025-11-25	BUY	acquisition	株式会社TMKR	activist	28.4M	¥3,510	+0.1%	¥99.8B ($643.8M)
2025-11-25	BUY	negotiated	有限会社レッジウッド	other	4.1M	¥3,510	-0.1%	¥14.6B ($94.0M)
2025-11-25	BUY	negotiated	株式会社シオン	other	1.4M	¥3,510	-0.1%	¥4.8B ($31.2M)
2025-11-25	SELL	negotiated	木村陽祐	activist	21.6K	¥3,510	-0.1%	¥76M ($491K)
2025-11-21	SELL	unknown	ゴールドマン・サックス・インターナショナル Goldman Sachs International	other	2.6M	¥3,525	+0.3%	¥3.9B ($25.0M)
2025-11-21	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.2M	¥3,525	-0.3%	¥4.2B ($27.3M)
2025-11-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.8M	¥3,525	-0.3%	¥6.3B ($40.7M)
2025-11-21	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	14.1K	¥3,525	-0.3%	¥50M ($322K)
2025-11-21	BUY	unknown	ゴールドマン・サックス証券株式会社 Goldman Sachs Japan Co.,Ltd.	other	2.1K	¥3,525	-0.3%	¥20M ($131K)
2025-11-10	BUY	unknown	ゴールドマン・サックス・インターナショナル Goldman Sachs International	other	3.7M	¥3,530	-0.4%	¥13.0B ($83.8M)
2025-11-10	BUY	unknown	ゴールドマン・サックス証券株式会社 Goldman Sachs Japan Co.,Ltd.	other	-6.7K	¥3,530	-0.4%	-
2025-10-01	BUY	Market Buy	有限会社レッジウッド Ledgewood Ltd.	other	4.1M	¥3,605	-2.5%	¥14.9B ($96.4M)
2025-10-01	BUY	Market Buy	株式会社シオン Shion Co., Ltd.	other	1.4M	¥3,605	-2.5%	¥5.0B ($32.0M)
2025-10-01	BUY	Market Buy	株式会社ラピスラズリ Lapis Lazuli Co., Ltd.	other	1.4M	¥3,605	-2.5%	¥5.0B ($32.0M)
2025-10-01	BUY	Market Buy	株式会社シートック Seatok Co., Ltd.	other	4.3M	¥3,605	-2.5%	¥15.4B ($99.2M)
2025-10-01	BUY	Market Buy	株式会社ワイズライト Wise Light Co., Ltd.	other	1.4M	¥3,605	-2.5%	¥5.0B ($32.0M)
2025-10-01	BUY	Market Buy	株式会社ラピスラズリ Lapis Lazuli Co., Ltd.	other	1.4M	¥3,605	-2.5%	¥332M ($2.1M)
2025-10-01	BUY	Market Buy	株式会社シートック Seatok Co., Ltd.	other	4.3M	¥3,605	-2.5%	¥1.0B ($6.7M)
2025-10-01	BUY	Market Buy	株式会社ワイズライト Wise Light Co., Ltd.	other	1.4M	¥3,605	-2.5%	¥332M ($2.1M)
2025-10-01	BUY	Market Buy	木村友彦 Tomohiko Kimura	activist	1.9M	¥3,605	-2.5%	¥602M ($3.9M)
2025-10-01	BUY	Market Buy	木村友彦 Tomohiko Kimura	activist	1.9M	¥3,605	-2.5%	¥125M ($804K)
2025-10-01	BUY	Market Buy	木村陽祐 Yosuke Kimura	activist	807.0K	¥3,605	-2.5%	¥21M ($134K)
2025-06-05	BUY	negotiated	有限会社レッジウッド Ledgewood Ltd.	other	4.1M	¥2,588	+35.8%	¥730M ($4.7M)
2025-06-05	BUY	negotiated	株式会社シオン Shion Co., Ltd.	other	1.4M	¥2,588	+35.8%	¥239M ($1.5M)
2025-06-05	BUY	negotiated	有限会社レッジウッド Ledgewood Ltd.	other	4.1M	¥2,588	+35.8%	¥10.7B ($69.2M)

Showing the 50 most recent of 91 filings.

Frequently asked questions

Who has been buying Paramount Bed Holdings Co., Ltd. stock?: 28 distinct investors have filed 43 disclosed large-shareholding filings in Paramount Bed Holdings Co., Ltd. (7817), most recently on 2026-02-05. 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 Paramount Bed Holdings Co., Ltd. have?: Paramount Bed Holdings Co., Ltd. has 43 buy-side and 15 sell-side disclosures on record, covering ¥23.8B ($153.5M) in total reported value, spanning 2021-12-08 to 2026-02-05.
Where does StockDrifts get Paramount Bed Holdings 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 Paramount Bed Holdings Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.