Who has been buying Atsugi Co., Ltd. stock?

7 distinct investors have filed 43 disclosed large-shareholding filings in Atsugi Co., Ltd. (3529), most recently on 2026-01-20. 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 Atsugi Co., Ltd. have?

Atsugi Co., Ltd. has 43 buy-side and 20 sell-side disclosures on record, covering ¥3.4B ($21.6M) in total reported value, spanning 2021-05-14 to 2026-01-20.

Where does StockDrifts get Atsugi 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.

Atsugi Co., Ltd. 3529

Company

アツギ株式会社Atsugi Co., Ltd.

Investors

Buys

Total Value

¥3.4B ($21.6M)

Avg Return

+39.32%

Last Filing

2026-01-20

Atsugi Co., Ltd. (3529) has 43 disclosed large-shareholding filings and 20 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥3.4B ($21.6M) in reported transaction value. The earliest filing StockDrifts holds for Atsugi Co., Ltd. is dated 2021-05-14; the most recent is 2026-01-20. 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 +39.32%, 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
2026-01-20	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	4.9M	¥1,130	-5.8%	¥202M ($1.3M)
2025-12-17	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	4.8M	¥1,245	-14.5%	¥235M ($1.5M)
2025-12-05	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	4.6M	¥1,239	-14.0%	¥236M ($1.5M)
2025-11-19	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	4.4M	¥1,125	-5.3%	¥253M ($1.6M)
2025-11-05	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	4.1M	¥1,114	-4.4%	¥320M ($2.1M)
2025-10-07	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	3.9M	¥1,088	-2.1%	¥202M ($1.3M)
2025-09-17	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	3.7M	¥1,050	+1.4%	¥187M ($1.2M)
2025-08-06	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	3.5M	¥1,158	-8.0%	¥237M ($1.5M)
2025-06-24	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	3.3M	¥1,230	-13.4%	¥239M ($1.5M)
2025-05-22	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	3.1M	¥1,040	+2.4%	¥214M ($1.4M)
2025-05-09	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	2.9M	¥1,051	+1.3%	¥191M ($1.2M)
2025-02-20	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	2.7M	¥1,137	-6.3%	¥205M ($1.3M)
2025-02-04	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	2.5M	¥1,030	+3.4%	¥243M ($1.6M)
2025-01-23	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	2.3M	¥982	+8.4%	¥196M ($1.3M)
2024-12-26	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	2.1M	¥952	+11.9%	¥180M ($1.2M)
2024-12-09	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.9M	¥978	+8.9%	¥180M ($1.2M)
2024-11-27	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.7M	¥956	+11.4%	¥176M ($1.1M)
2024-10-22	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.5M	¥884	+20.5%	¥155M ($998K)
2024-10-03	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.4M	¥799	+33.3%	¥141M ($911K)
2024-09-12	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	1.2M	¥739	+44.1%	¥141M ($908K)
2024-08-08	BUY	Market Buy	アセット・バリュー・インベスターズ・リミテッド (Asset Value Investors Limited) Asset Value Investors Limited	activist	998.0K	¥748	+42.4%	¥747M ($4.8M)
2024-08-07	SELL	Market Buy	吉木伸彦 Nobuhiko Yoshiki	activist	97.7K	¥755	-41.1%	¥12M ($76K)
2024-08-07	BUY	Market Buy	株式会社ヨシキホールディングス Yoshiki Holdings Co., Ltd.	activist	744.0K	¥755	+41.1%	¥555M ($3.6M)
2024-08-01	SELL	Market Buy	吉木伸彦 Nobuhiko Yoshiki	activist	113.2K	¥685	-55.5%	¥70M ($452K)
2024-08-01	BUY	Market Buy	株式会社ヨシキホールディングス Yoshiki Holdings Co., Ltd.	activist	968.8K	¥685	+55.5%	¥655M ($4.2M)
2024-06-27	SELL	Market Buy	吉木伸彦 Nobuhiko Yoshiki	activist	214.6K	¥618	-72.3%	¥32M ($207K)
2024-06-27	SELL	Market Buy	株式会社ヨシキホールディングス Yoshiki Holdings Co., Ltd.	activist	1.2M	¥618	-72.3%	¥112M ($725K)
2024-05-27	SELL	Market Buy	絆屋株式会社 Kizunya Co., Ltd.	activist	0	¥641	-66.2%	¥777M ($5.0M)
2024-05-27	SELL	Market Buy	吉木伸彦 Nobuhiko Yoshiki	activist	266.4K	¥641	-66.2%	¥34M ($222K)
2024-05-27	SELL	Market Buy	株式会社ヨシキホールディングス Yoshiki Holdings Co., Ltd.	activist	1.3M	¥641	-66.2%	¥88M ($566K)
2024-05-02	BUY	Market Buy	絆屋株式会社 Kizunya Co., Ltd.	activist	11.9K	¥665	+60.1%	¥683M ($4.4M)
2024-05-02	SELL	Market Buy	吉木伸彦 Nobuhiko Yoshiki	activist	320.6K	¥665	-60.1%	¥154M ($996K)
2024-05-02	BUY	Market Buy	株式会社ヨシキホールディングス Yoshiki Holdings Co., Ltd.	activist	1.5M	¥665	+60.1%	¥104M ($669K)
2022-12-28	BUY	Market Buy	吉木伸彦 Nobuhiko Yoshiki	activist	552.0K	¥397	+168.3%	¥69M ($444K)
2022-12-28	SELL	Market Buy	株式会社ヨシキホールディングス Yoshiki Holdings Co., Ltd.	activist	1.3M	¥397	-168.3%	¥74M ($479K)
2022-12-28	SELL	Market Buy	絆屋株式会社 Kizunya Co., Ltd.	activist	184.6K	¥397	-168.3%	¥408M ($2.6M)
2022-07-01	BUY	Market Buy	絆屋株式会社 Kizunya Co., Ltd.	activist	12.0K	¥496	+114.7%	¥6M ($38K)
2022-07-01	SELL	Market Buy	吉木伸彦 Nobuhiko Yoshiki	activist	379.9K	¥496	-114.7%	¥15M ($100K)
2022-07-01	SELL	Market Buy	株式会社ヨシキホールディングス Yoshiki Holdings Co., Ltd.	activist	1.5M	¥496	-114.7%	¥32M ($205K)
2022-04-15	SELL	unknown	ブランデス・インベストメント・パートナーズ・エル・ピー(Brandes Investment Partners, L.P.) Brandes Investment Partners, L.P.	activist	806.8K	¥524	-103.2%	¥71M ($457K)
2022-04-06	BUY	Market Buy	絆屋株式会社 Kizunya Co., Ltd.	activist	11.7K	¥595	+79.0%	¥670M ($4.3M)
2022-04-06	SELL	Market Buy	吉木伸彦 Nobuhiko Yoshiki	activist	411.0K	¥595	-79.0%	¥67M ($432K)
2022-04-06	BUY	Market Buy	株式会社ヨシキホールディングス Yoshiki Holdings Co., Ltd.	activist	1.6M	¥595	+79.0%	¥940M ($6.1M)
2022-01-26	BUY	Market Buy	吉木伸彦 Nobuhiko Yoshiki	activist	522.5K	¥533	+99.8%	¥278M ($1.8M)
2022-01-26	SELL	Market Buy	絆屋株式会社 Kizunya Co., Ltd.	activist	86.2K	¥533	-99.8%	¥1.1B ($6.8M)
2022-01-26	BUY	Market Buy	株式会社ヨシキホールディングス Yoshiki Holdings Co., Ltd.	activist	1.6M	¥533	+99.8%	¥64M ($411K)
2021-10-14	SELL	Market Buy	絆屋株式会社 Kizunya Co., Ltd.	activist	21.5K	¥645	-65.1%	¥66M ($425K)
2021-10-14	BUY	Market Buy	吉木伸彦 Nobuhiko Yoshiki	activist	522.5K	¥645	+65.1%	¥64M ($411K)
2021-10-14	BUY	Market Buy	株式会社ヨシキホールディングス Yoshiki Holdings Co., Ltd.	activist	1.5M	¥645	+65.1%	¥130M ($836K)
2021-09-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	216.5K	¥638	+66.9%	¥8M ($50K)

Showing the 50 most recent of 69 filings.

Frequently asked questions

Who has been buying Atsugi Co., Ltd. stock?: 7 distinct investors have filed 43 disclosed large-shareholding filings in Atsugi Co., Ltd. (3529), most recently on 2026-01-20. 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 Atsugi Co., Ltd. have?: Atsugi Co., Ltd. has 43 buy-side and 20 sell-side disclosures on record, covering ¥3.4B ($21.6M) in total reported value, spanning 2021-05-14 to 2026-01-20.
Where does StockDrifts get Atsugi 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 Atsugi Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.