Who has been buying NIPPON PARKING DEVELOPMENT Co.,Ltd. stock?

4 distinct investors have filed 14 disclosed large-shareholding filings in NIPPON PARKING DEVELOPMENT Co.,Ltd. (2353), most recently on 2026-01-27. 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 NIPPON PARKING DEVELOPMENT Co.,Ltd. have?

NIPPON PARKING DEVELOPMENT Co.,Ltd. has 14 buy-side and 12 sell-side disclosures on record, covering ¥12.0B ($77.7M) in total reported value, spanning 2021-07-07 to 2026-01-27.

Where does StockDrifts get NIPPON PARKING DEVELOPMENT 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.

NIPPON PARKING DEVELOPMENT Co.,Ltd. 2353

Company

日本駐車場開発株式会社NIPPON PARKING DEVELOPMENT Co.,Ltd.

Investors

Buys

Total Value

¥12.0B ($77.7M)

Avg Return

+57.03%

Last Filing

2026-01-27

NIPPON PARKING DEVELOPMENT Co.,Ltd. (2353) has 14 disclosed large-shareholding filings and 12 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥12.0B ($77.7M) in reported transaction value. The earliest filing StockDrifts holds for NIPPON PARKING DEVELOPMENT Co.,Ltd. is dated 2021-07-07; the most recent is 2026-01-27. 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 +57.03%, 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
2026-01-27	BUY	negotiated	株式会社巽商店	strategic	105.6M	¥286	+4.5%	¥28.8B ($186.0M)
2026-01-27	SELL	negotiated	巽一久	activist	4.2M	¥286	+4.5%	¥1.1B ($7.4M)
2026-01-27	BUY	Market Buy	株式会社巽商店	strategic	105.6M	¥286	+4.5%	¥28.8B ($186.0M)
2026-01-27	SELL	Market Buy	巽一久	activist	4.2M	¥286	+4.5%	¥1.1B ($7.4M)
2023-01-20	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	activist	5.3M	¥256	-6.6%	¥928M ($6.0M)
2023-01-20	SELL	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	11.5M	¥256	-6.6%	¥62M ($403K)
2022-12-20	BUY	negotiated	株式会社巽商店 Tatsumi Shoten Co., Ltd.	strategic	105.6M	¥290	-5.9%	¥2.0B ($13.1M)
2022-12-20	SELL	negotiated	巽一久 Kazuhisa Tatsumi	activist	4.2M	¥290	+5.9%	¥1.7B ($11.1M)
2022-12-20	BUY	negotiated	株式会社巽商店 Tatsumi Shoten Co., Ltd.	strategic	105.6M	¥290	-5.9%	¥2.0B ($13.1M)
2022-12-20	SELL	negotiated	巽一久 Kazuhisa Tatsumi	activist	4.2M	¥290	+5.9%	¥1.7B ($11.1M)
2022-12-09	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	11.8M	¥238	+14.7%	¥33M ($214K)
2022-12-09	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	activist	8.9M	¥238	-14.7%	¥887M ($5.7M)
2022-08-16	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	11.6M	¥164	+66.5%	¥1.9B ($12.3M)
2022-08-16	BUY	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	activist	12.6M	¥164	+66.5%	¥2.1B ($13.3M)
2022-08-04	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	activist	12.6M	¥169	+61.5%	¥2.1B ($13.8M)
2022-08-04	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	2.3M	¥169	-61.5%	¥954M ($6.2M)
2022-08-02	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	activist	12.6M	¥169	+61.5%	¥406M ($2.6M)
2022-08-02	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	8.0M	¥169	-61.5%	¥671M ($4.3M)
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	activist	10.3M	¥136	+100.7%	¥1.4B ($9.0M)
2022-02-07	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	11.9M	¥136	+100.7%	¥1.6B ($10.5M)
2022-02-02	SELL	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	activist	10.1M	¥138	-97.8%	¥34M ($217K)
2022-02-02	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	2.6M	¥138	-97.8%	¥1.2B ($7.6M)
2021-10-14	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	11.1M	¥147	+85.7%	¥1.6B ($10.5M)
2021-10-14	BUY	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	activist	10.3M	¥147	+85.7%	¥61M ($397K)
2021-09-07	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	9.9M	¥171	+59.6%	¥1.7B ($10.9M)
2021-09-07	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	11.1M	¥171	+59.6%	¥1.9B ($12.3M)
2021-08-06	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	8.1M	¥163	+67.5%	¥153M ($989K)
2021-08-06	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	3.9M	¥163	-67.5%	¥1.0B ($6.7M)
2021-07-07	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	7.2M	¥167	+63.5%	¥1.2B ($7.7M)
2021-07-07	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	10.4M	¥167	+63.5%	¥1.7B ($11.2M)

Frequently asked questions

Who has been buying NIPPON PARKING DEVELOPMENT Co.,Ltd. stock?: 4 distinct investors have filed 14 disclosed large-shareholding filings in NIPPON PARKING DEVELOPMENT Co.,Ltd. (2353), most recently on 2026-01-27. 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 NIPPON PARKING DEVELOPMENT Co.,Ltd. have?: NIPPON PARKING DEVELOPMENT Co.,Ltd. has 14 buy-side and 12 sell-side disclosures on record, covering ¥12.0B ($77.7M) in total reported value, spanning 2021-07-07 to 2026-01-27.
Where does StockDrifts get NIPPON PARKING DEVELOPMENT 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 NIPPON PARKING DEVELOPMENT Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.