Who has been buying HIP Corporation stock?

7 distinct investors have filed 11 disclosed large-shareholding filings in HIP Corporation (2136), most recently on 2025-12-23. 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 HIP Corporation have?

HIP Corporation has 11 buy-side and 4 sell-side disclosures on record, covering ¥2.4B ($15.2M) in total reported value, spanning 2021-08-31 to 2025-12-23.

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.

HIP Corporation 2136

Company

株式会社ヒップHIP Corporation

Investors

Buys

Total Value

¥2.4B ($15.2M)

Avg Return

+32.74%

Last Filing

2025-12-23

HIP Corporation (2136) has 11 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥2.4B ($15.2M) in reported transaction value. The earliest filing StockDrifts holds for HIP Corporation is dated 2021-08-31; the most recent is 2025-12-23. Across these filings the average return since disclosure is +32.74%, 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
2025-12-23	BUY	Market Buy	光通信株式会社	passive	204.6K	¥1,594	-	-
2025-12-23	BUY	Market Buy	株式会社アイビー	passive	70.7K	¥1,594	-10.5%	¥54M ($347K)
2025-09-29	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	204.6K	¥1,419	-	-
2025-09-29	BUY	Market Buy	株式会社アイビー IB, Inc.	passive	37.1K	¥1,419	+0.6%	¥3M ($18K)
2025-09-26	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	204.6K	¥1,408	+1.4%	¥7M ($43K)
2025-09-26	BUY	Market Buy	株式会社アイビー IB, Inc.	passive	35.1K	¥1,408	-	¥49M ($319K)
2025-08-26	BUY	Market Buy	株式会社ベストプランニング BEST PLANNING CORPORATION	strategic	1.4M	¥1,407	+1.4%	¥1.0B ($6.7M)
2025-08-26	SELL	Market Buy	田中伸明 Nobuaki Tanaka	activist	44.0K	¥1,407	-1.4%	¥456M ($2.9M)
2025-08-26	SELL	Market Buy	亀山弓子 Yumiko Kameyama	activist	36.9K	¥1,407	-1.4%	¥458M ($3.0M)
2025-06-05	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	199.8K	¥1,169	+22.1%	¥234M ($1.5M)
2024-04-30	SELL	unknown	田中吉武(相続人代表田中伸明) TANAKA YOSHITAKE	unknown	0	¥1,173	-21.6%	¥8M ($49K)
2024-04-30	BUY	unknown	株式会社ベストプランニング BEST PLANNING CORPORATION	strategic	612.0K	¥1,173	-	-
2024-04-30	BUY	unknown	田中佐津枝 Satsue Tanaka	strategic	91.8K	¥1,173	-	-
2024-04-30	BUY	unknown	亀山弓子 Yumiko Kameyama	activist	362.2K	¥1,173	+21.6%	¥381M ($2.5M)
2024-04-30	BUY	unknown	田中伸明 Nobuaki Tanaka	activist	368.7K	¥1,173	+21.6%	¥382M ($2.5M)
2023-05-24	BUY	unknown	株式会社ベストプランニング BEST PLANNING CORPORATION	strategic	612.0K	¥963	+48.2%	¥582M ($3.8M)
2023-05-24	BUY	unknown	亀山弓子 Yumiko Kameyama	activist	36.9K	¥963	-	-
2023-05-24	BUY	unknown	田中伸明 Nobuaki Tanaka	activist	42.7K	¥963	-	-
2023-04-03	BUY	negotiated	田中吉武 TANAKA YOSHITAKE	activist	650.6K	¥880	+62.2%	¥1M ($9K)
2023-04-03	BUY	unknown	株式会社ベストプランニング BEST PLANNING CORPORATION	strategic	810.0K	¥880	-	-
2023-04-03	BUY	Market Buy	田中吉武 TANAKA YOSHITAKE	activist	650.6K	¥880	+62.2%	¥1M ($9K)
2023-04-03	BUY	Market Buy	田中佐津枝 Satsue Tanaka	activist	91.8K	¥880	-	-
2023-04-03	BUY	Market Buy	株式会社ベストプランニング BEST PLANNING CORPORATION	strategic	810.0K	¥880	-	-
2023-04-03	BUY	unknown	亀山弓子 Yumiko Kameyama	activist	36.9K	¥880	-	¥32M ($209K)
2023-04-03	BUY	unknown	田中伸明 Nobuaki Tanaka	activist	42.7K	¥880	-	¥38M ($242K)
2023-04-03	BUY	negotiated	田中佐津枝 Satsue Tanaka	activist	91.8K	¥880	-	-
2023-04-03	BUY	negotiated	株式会社ベストプランニング BEST PLANNING CORPORATION	strategic	810.0K	¥880	-	-
2021-08-31	BUY	Market Buy	田中吉武 TANAKA YOSHITAKE	activist	649.0K	¥745	+91.5%	¥6M ($40K)
2021-08-31	BUY	Market Buy	田中佐津枝 Satsue Tanaka	activist	91.8K	¥745	-	-
2021-08-31	SELL	Market Buy	株式会社ベストプランニング BEST PLANNING CORPORATION	strategic	810.0K	¥745	-91.5%	¥142M ($913K)

Frequently asked questions

Who has been buying HIP Corporation stock?: 7 distinct investors have filed 11 disclosed large-shareholding filings in HIP Corporation (2136), most recently on 2025-12-23. 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 HIP Corporation have?: HIP Corporation has 11 buy-side and 4 sell-side disclosures on record, covering ¥2.4B ($15.2M) in total reported value, spanning 2021-08-31 to 2025-12-23.
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.