Who has been buying Saylor Advertising.Inc. stock?

2 distinct investors have filed 6 disclosed large-shareholding filings in Saylor Advertising.Inc. (2156), most recently on 2025-09-01. 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 Saylor Advertising.Inc. have?

Saylor Advertising.Inc. has 6 buy-side and 5 sell-side disclosures on record, covering ¥438M ($2.8M) in total reported value, spanning 2024-10-25 to 2025-09-01.

Where does StockDrifts get Saylor Advertising.Inc. 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.

Saylor Advertising.Inc. 2156

Company

株式会社セーラー広告Saylor Advertising.Inc.

Investors

Buys

Total Value

¥438M ($2.8M)

Avg Return

-44.21%

Last Filing

2025-09-01

Saylor Advertising.Inc. (2156) has 6 disclosed large-shareholding filings and 5 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥438M ($2.8M) in reported transaction value. The earliest filing StockDrifts holds for Saylor Advertising.Inc. is dated 2024-10-25; the most recent is 2025-09-01. 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 -44.21%, 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
2025-09-01	BUY	Market Buy	ロングコリドーアセットマネジメントリミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited	passive	353.5K	¥409	-26.6%	¥162M ($1.0M)
2025-09-01	SELL	Market Buy	ロングコリドーアセットマネジメントリミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited	passive	353.5K	¥409	+26.6%	¥162M ($1.0M)
2025-07-01	SELL	Market Buy	ロングコリドーアセットマネジメントリミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited	passive	756.4K	¥359	+16.4%	¥23M ($147K)
2025-06-17	SELL	Market Buy	ロングコリドーアセットマネジメントリミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited	passive	827.3K	¥369	+18.7%	¥24M ($155K)
2025-03-13	SELL	Market Buy	ロングコリドーアセットマネジメントリミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited	passive	900.0K	¥355	+15.5%	¥12M ($78K)
2025-02-21	SELL	Market Buy	ロングコリドーアセットマネジメントリミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited	passive	938.7K	¥346	+13.3%	¥19M ($120K)
2025-01-09	BUY	Market Buy	ロングコリドーアセットマネジメントリミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited	passive	1.0M	¥402	-25.4%	¥402M ($2.6M)
2024-10-30	BUY	Market Buy	セーラー広告取引先持株会理事長小松義彦 Saylor Customer's Stockholding	strategic	550.1K	¥600	-50.0%	¥36M ($235K)
2024-10-30	BUY	Market Buy	セーラー広告取引先持株会理事長小松義彦 Saylor Customer's Stockholding	strategic	489.5K	¥600	-50.0%	¥37M ($238K)
2024-10-30	BUY	Market Buy	セーラー広告取引先持株会理事長小松義彦 Saylor Customer's Stockholding	strategic	428.0K	¥600	-50.0%	¥37M ($240K)
2024-10-30	BUY	Market Buy	セーラー広告取引先持株会理事長小松義彦 Saylor Customer's Stockholding	strategic	366.1K	¥600	-50.0%	¥36M ($235K)
2024-10-25	BUY	unknown	セーラー広告取引先持株会理事長小松義彦 Saylor Customer's Stockholding	strategic	305.0K	¥499	-39.9%	¥152M ($982K)

Frequently asked questions

Who has been buying Saylor Advertising.Inc. stock?: 2 distinct investors have filed 6 disclosed large-shareholding filings in Saylor Advertising.Inc. (2156), most recently on 2025-09-01. 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 Saylor Advertising.Inc. have?: Saylor Advertising.Inc. has 6 buy-side and 5 sell-side disclosures on record, covering ¥438M ($2.8M) in total reported value, spanning 2024-10-25 to 2025-09-01.
Where does StockDrifts get Saylor Advertising.Inc. 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 Saylor Advertising.Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.