Who has been buying HIMACS, Ltd. stock?

6 distinct investors have filed 18 disclosed large-shareholding filings in HIMACS, Ltd. (4299), most recently on 2025-12-10. 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 HIMACS, Ltd. have?

HIMACS, Ltd. has 18 buy-side and 13 sell-side disclosures on record, covering ¥907M ($5.9M) in total reported value, spanning 2021-04-05 to 2025-12-10.

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.

HIMACS, Ltd. 4299

Company

株式会社ハイマックスHIMACS, Ltd.

Investors

Buys

Total Value

¥907M ($5.9M)

Avg Return

-3.20%

Last Filing

2025-12-10

HIMACS, Ltd. (4299) has 18 disclosed large-shareholding filings and 13 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥907M ($5.9M) in reported transaction value. The earliest filing StockDrifts holds for HIMACS, Ltd. is dated 2021-04-05; the most recent is 2025-12-10. Across these filings the average return since disclosure is -3.20%, 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
2026-08-18	BUY	Market Buy	株式会社前田計画研究所	strategic	750.0K	¥1,248	-1.8%	¥107M ($691K)
2026-08-18	BUY	unknown	柴田玲子	strategic	57.2K	¥1,248	-	¥71M ($461K)
2026-08-18	BUY	unknown	株式会社前田計画研究所	strategic	750.0K	¥1,248	-1.8%	¥107M ($691K)
2026-08-18	BUY	unknown	柴田玲子	strategic	57.2K	¥1,248	-1.8%	¥71M ($461K)
2026-08-18	SELL	unknown	前田眞也(相続人代表前田和子)	unknown	0	¥1,248	+1.8%	¥947M ($6.1M)
2026-08-18	BUY	Market Buy	前田和子	strategic	775.6K	¥1,248	-1.8%	¥891M ($5.7M)
2025-12-10	SELL	unknown	光通信株式会社	unknown	0	¥1,227	+0.1%	¥1.0B ($6.8M)
2025-12-10	SELL	unknown	株式会社UH Partners 2	unknown	0	¥1,227	+0.1%	¥140M ($904K)
2025-09-26	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	113.8K	¥1,274	-3.8%	¥145M ($939K)
2025-09-26	SELL	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	855.1K	¥1,274	+3.8%	¥150M ($969K)
2025-04-21	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	372.3K	¥1,218	-	-
2025-04-21	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	119.5K	¥1,218	+0.7%	¥2M ($10K)
2025-04-21	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	39.6K	¥1,218	+0.7%	¥20M ($127K)
2025-04-21	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	2.7K	¥1,218	+0.7%	¥17M ($107K)
2025-03-03	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	372.3K	¥1,363	-10.1%	¥507M ($3.3M)
2025-03-03	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	117.8K	¥1,363	-10.1%	¥161M ($1.0M)
2025-03-03	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	23.7K	¥1,363	-10.1%	¥32M ($208K)
2025-03-03	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	234.8K	¥1,363	-10.1%	¥320M ($2.1M)
2024-04-15	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	372.3K	¥1,393	-	-
2024-04-15	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	105.5K	¥1,393	+12.0%	¥9M ($56K)
2024-04-15	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	38.9K	¥1,393	-12.0%	¥21M ($134K)
2024-04-15	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	2.4K	¥1,393	-12.0%	¥131M ($848K)
2024-03-18	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	372.3K	¥1,462	+16.1%	¥167M ($1.1M)
2024-03-18	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	111.3K	¥1,462	-16.1%	¥4M ($23K)
2024-03-18	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	23.1K	¥1,462	-16.1%	¥4M ($23K)
2024-03-18	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	153.4K	¥1,462	-16.1%	¥194M ($1.3M)
2023-04-17	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	486.3K	¥1,408	+12.9%	¥16M ($101K)
2023-04-17	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	108.7K	¥1,408	-	-
2023-04-17	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	21.1K	¥1,408	-	-
2023-04-17	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	20.7K	¥1,408	+12.9%	¥175M ($1.1M)
2023-03-20	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	498.2K	¥1,369	+10.4%	¥31M ($197K)
2023-03-20	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	109.1K	¥1,369	+10.4%	¥8M ($55K)
2023-03-20	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	20.7K	¥1,369	-	-
2023-03-20	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	145.1K	¥1,369	-10.4%	¥175M ($1.1M)
2023-01-06	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	519.9K	¥1,441	+14.9%	¥11M ($69K)
2023-01-06	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	115.6K	¥1,441	+14.9%	¥29M ($185K)
2023-01-06	SELL	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	21.7K	¥1,441	+14.9%	¥7M ($46K)
2023-01-06	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	17.0K	¥1,441	+14.9%	¥138M ($889K)
2021-04-05	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	135.6K	¥1,055.845	+16.1%	¥13M ($85K)
2021-04-05	BUY	Market Buy	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	527.0K	¥1,055.845	+16.1%	¥93M ($600K)
2021-04-05	BUY	Market Buy	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	113.5K	¥1,055.845	+16.1%	¥50M ($321K)
2021-04-05	BUY	Market Buy	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	25.7K	¥1,055.845	+16.1%	¥12M ($76K)

Frequently asked questions

Who has been buying HIMACS, Ltd. stock?: 6 distinct investors have filed 18 disclosed large-shareholding filings in HIMACS, Ltd. (4299), most recently on 2025-12-10. 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 HIMACS, Ltd. have?: HIMACS, Ltd. has 18 buy-side and 13 sell-side disclosures on record, covering ¥907M ($5.9M) in total reported value, spanning 2021-04-05 to 2025-12-10.
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.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.