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PIA Corporation 4337

Company
ぴあ株式会社PIA Corporation
Investors
7
Buys
1
Total Value
¥3.8B ($24.7M)
Avg Return
-2.13%
Last Filing
2025-03-10

PIA Corporation (4337) has 1 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥3.8B ($24.7M) in reported transaction value. The earliest filing StockDrifts holds for PIA Corporation is dated 2023-10-06; the most recent is 2025-03-10. 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 -2.13%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-03-10SELLunknown
KDDIパートナーズ株式会社
KDDI Partners Co., Ltd.
unknown0¥2,720-26.8%¥490M ($3.2M)
2025-03-10SELLunknown
KDDIパートナーズ株式会社
KDDI Partners Co., Ltd.
strategic168.4K¥2,720-26.8%¥4M ($26K)
2025-03-10SELLunknown
KDDI株式会社
KDDI CORPORATION
strategic1.4M¥2,720-26.8%¥28M ($180K)
2025-03-10SELLunknown
KDDI株式会社
KDDI CORPORATION
strategic204.5K¥2,720-26.8%¥3.5B ($22.6M)
2025-03-07SELLnegotiated
株式会社セブン&アイ・ネットメディア
Seven & i Net Media Co., Ltd.
strategic704.7K¥2,844-21.3%¥218M ($1.4M)
2025-03-07SELLnegotiated
株式会社セブン‐イレブン・ジャパン
Seven-Eleven Japan Co., Ltd.
strategic704.7K¥2,844-21.3%¥218M ($1.4M)
2025-03-07SELLnegotiated
株式会社セブン&アイ・ホールディングス
Seven & i Holdings Co., Ltd.
strategic1.4M¥2,844-21.3%¥440M ($2.8M)
2023-10-06SELLunknown
TOPPANホールディングス株式会社
TOPPAN Holdings Inc.
strategic0¥3,525+2.1%¥4.2B ($27.0M)
2023-10-06BUYunknown
TOPPAN株式会社
TOPPAN Inc.
strategic1.1M¥3,525-2.1%¥3.8B ($24.7M)

Frequently asked questions

Who has been buying PIA Corporation stock?
7 distinct investors have filed 1 disclosed large-shareholding filings in PIA Corporation (4337), most recently on 2025-03-10. 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 PIA Corporation have?
PIA Corporation has 1 buy-side and 8 sell-side disclosures on record, covering ¥3.8B ($24.7M) in total reported value, spanning 2023-10-06 to 2025-03-10.
Where does StockDrifts get PIA Corporation 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 PIA Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.