Who has been buying Warabeya Nichiyo Holdings Co., Ltd. stock?

11 distinct investors have filed 22 disclosed large-shareholding filings in Warabeya Nichiyo Holdings Co., Ltd. (2918), most recently on 2025-06-18. 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 Warabeya Nichiyo Holdings Co., Ltd. have?

Warabeya Nichiyo Holdings Co., Ltd. has 22 buy-side and 10 sell-side disclosures on record, covering ¥3.7B ($23.6M) in total reported value, spanning 2022-02-07 to 2025-06-18.

Where does StockDrifts get Warabeya Nichiyo 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.

Warabeya Nichiyo Holdings Co., Ltd. 2918

Company

わらべや日洋株式会社Warabeya Nichiyo Holdings Co., Ltd.

Investors

Buys

Total Value

¥3.7B ($23.6M)

Avg Return

+40.06%

Last Filing

2025-06-18

Warabeya Nichiyo Holdings Co., Ltd. (2918) has 22 disclosed large-shareholding filings and 10 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥3.7B ($23.6M) in reported transaction value. The earliest filing StockDrifts holds for Warabeya Nichiyo Holdings Co., Ltd. is dated 2022-02-07; the most recent is 2025-06-18. 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 +40.06%, 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
2026-07-23	BUY	unknown	株式会社エストモ	strategic	351.6K	¥2,766	+2.5%	¥973M ($6.3M)
2026-07-23	SELL	negotiated	大友啓行	activist	100	¥2,766	-2.5%	¥1.9B ($12.5M)
2026-07-23	BUY	unknown	株式会社エルアンドオー	strategic	351.6K	¥2,766	+2.5%	¥973M ($6.3M)
2026-07-23	BUY	unknown	株式会社大友アセットマネジメント	strategic	1.4M	¥2,766	+2.5%	¥3.7B ($24.1M)
2026-06-04	BUY	Market Buy	大友啓行	activist	703.3K	¥2,543	+4.8%	¥466M ($3.0M)
2026-06-04	BUY	unknown	株式会社大友アセットマネジメント	strategic	1.4M	¥2,543	+4.8%	¥3.4B ($22.1M)
2025-06-18	BUY	Market Buy	リーディング・ガイド・ホンコン・リミテッド(Leading Guide Hongkong Limited) Leading Guide Hongkong Limited	passive	1.2M	¥2,259	+24.6%	¥2.8B ($18.2M)
2024-05-08	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	133.1K	¥2,424	+16.1%	¥90M ($579K)
2024-05-08	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	372.9K	¥2,424	-16.1%	¥34M ($221K)
2024-05-08	SELL	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	10.7K	¥2,424	-16.1%	¥150M ($965K)
2024-05-08	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	173.8K	¥2,424	-16.1%	¥363M ($2.3M)
2023-12-11	BUY	Market Buy	リーディング・ガイド・ホンコン・リミテッド Leading Guide Hongkong Limited	passive	1.2M	¥3,650	-22.9%	¥682M ($4.4M)
2023-11-17	BUY	Market Buy	リーディング・ガイド・ホンコン・リミテッド Leading Guide Hongkong Limited	passive	1.1M	¥3,440	-18.2%	¥606M ($3.9M)
2023-04-17	BUY	unknown	大友啓行 Hiroyuki Otomo	activist	520.8K	¥2,054	+37.0%	¥1.1B ($6.9M)
2023-04-17	BUY	unknown	大友啓行 Hiroyuki Otomo	activist	520.8K	¥2,054	+37.0%	¥1.1B ($6.9M)
2023-04-17	BUY	unknown	大友啓行 Hiroyuki Otomo	activist	520.8K	¥2,054	+37.0%	¥1.1B ($6.9M)
2023-04-17	BUY	unknown	大友啓行 Hiroyuki Otomo	activist	520.8K	¥2,054	+37.0%	¥1.1B ($6.9M)
2023-04-17	BUY	unknown	株式会社大友アセットマネジメント Ootomo Asset Management Co.,Ltd	other	1.4M	¥2,054	+37.0%	¥2.8B ($17.9M)
2023-04-17	BUY	unknown	株式会社大友アセットマネジメント Ootomo Asset Management Co.,Ltd	other	1.4M	¥2,054	+37.0%	¥2.8B ($17.9M)
2023-04-17	BUY	unknown	株式会社大友アセットマネジメント Ootomo Asset Management Co.,Ltd	other	1.4M	¥2,054	+37.0%	¥2.8B ($17.9M)
2023-04-17	BUY	unknown	株式会社大友アセットマネジメント Ootomo Asset Management Co.,Ltd	other	1.4M	¥2,054	+37.0%	¥2.8B ($17.9M)
2023-04-03	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	73.0K	¥1,825	+54.2%	¥133M ($860K)
2023-04-03	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	96.3K	¥1,825	+54.2%	¥176M ($1.1M)
2023-04-03	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	388.6K	¥1,825	+54.2%	¥709M ($4.6M)
2023-04-03	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	324.0K	¥1,825	+54.2%	¥591M ($3.8M)
2023-02-20	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	95.1K	¥1,885	+49.3%	¥86M ($557K)
2023-02-20	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	393.4K	¥1,885	-49.3%	¥10M ($64K)
2023-02-20	SELL	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	1.5K	¥1,885	-49.3%	¥53M ($343K)
2023-02-20	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	324.0K	¥1,885	+49.3%	¥611M ($3.9M)
2022-10-03	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	204.8K	¥2,179	+29.1%	¥446M ($2.9M)
2022-10-03	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	48.5K	¥2,179	+29.1%	¥106M ($682K)
2022-10-03	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	398.3K	¥2,179	+29.1%	¥868M ($5.6M)
2022-10-03	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	324.0K	¥2,179	+29.1%	¥706M ($4.6M)
2022-08-04	BUY	Market Buy	リーディング・ガイド・ホンコン・リミテッド Leading Guide Hongkong Limited	passive	885.8K	¥2,225	+26.5%	¥2.0B ($12.7M)
2022-05-10	BUY	Market Buy	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	685.4K	¥1,686	+66.9%	¥131M ($844K)
2022-05-10	SELL	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	189.7K	¥1,686	-66.9%	¥152M ($978K)
2022-03-22	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	4.3K	¥1,758	+60.1%	¥266M ($1.7M)
2022-03-22	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	93.3K	¥1,758	+60.1%	¥9M ($60K)
2022-03-22	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	438.3K	¥1,758	+60.1%	¥15M ($100K)
2022-03-22	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	328.3K	¥1,758	-60.1%	¥183M ($1.2M)
2022-03-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	485.9K	¥1,784	+57.7%	¥857M ($5.5M)
2022-03-07	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	120.7K	¥1,784	-57.7%	¥277M ($1.8M)
2022-02-07	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	274.2K	¥1,900	+48.1%	¥521M ($3.4M)
2022-02-07	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	201.7K	¥1,900	+48.1%	¥137M ($886K)
2022-02-07	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	88.7K	¥1,900	+48.1%	¥47M ($302K)
2022-02-07	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	429.4K	¥1,900	-48.1%	¥17M ($108K)
2022-02-07	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	432.0K	¥1,900	-48.1%	¥90M ($583K)
2022-02-07	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	617.2K	¥1,900	+48.1%	¥1.2B ($7.6M)

Frequently asked questions

Who has been buying Warabeya Nichiyo Holdings Co., Ltd. stock?: 11 distinct investors have filed 22 disclosed large-shareholding filings in Warabeya Nichiyo Holdings Co., Ltd. (2918), most recently on 2025-06-18. 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 Warabeya Nichiyo Holdings Co., Ltd. have?: Warabeya Nichiyo Holdings Co., Ltd. has 22 buy-side and 10 sell-side disclosures on record, covering ¥3.7B ($23.6M) in total reported value, spanning 2022-02-07 to 2025-06-18.
Where does StockDrifts get Warabeya Nichiyo 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 Warabeya Nichiyo Holdings Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.