Who has been buying ktk Inc. stock?

4 distinct investors have filed 10 disclosed large-shareholding filings in ktk Inc. (3035), most recently on 2025-08-22. 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 ktk Inc. have?

ktk Inc. has 10 buy-side and 2 sell-side disclosures on record, covering ¥221M ($1.4M) in total reported value, spanning 2022-02-07 to 2025-08-22.

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.

ktk Inc. 3035

Company

ケイティケイ株式会社ktk Inc.

Investors

Buys

Total Value

¥221M ($1.4M)

Avg Return

+38.77%

Last Filing

2025-08-22

ktk Inc. (3035) has 10 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥221M ($1.4M) in reported transaction value. The earliest filing StockDrifts holds for ktk Inc. is dated 2022-02-07; the most recent is 2025-08-22. Across these filings the average return since disclosure is +38.77%, 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
2026-08-21	BUY	Market Buy	青山英生	activist	164.0K	¥769	+1.3%	¥6M ($40K)
2026-08-21	BUY	unknown	青雲堂株式会社	strategic	1.3M	¥769	-	-
2026-08-21	BUY	unknown	青山深雪	strategic	130.0K	¥769	-	-
2026-08-21	BUY	unknown	青雲堂株式会社	strategic	1.3M	¥769	-	-
2026-08-21	BUY	unknown	青山深雪	strategic	130.0K	¥769	-	-
2026-08-21	BUY	negotiated	青山英生	activist	164.0K	¥769	-	-
2025-08-22	BUY	Market Buy	青山英生 aoyamahideo	activist	155.5K	¥646	+20.6%	¥6M ($41K)
2025-08-22	BUY	Market Buy	青雲堂株式会社 Seiundo Co., Ltd.	strategic	1.3M	¥646	-	-
2025-08-22	BUY	Market Buy	青山深雪 Aoyama Miyuki	strategic	130.0K	¥646	-	-
2024-08-21	BUY	Market Buy	青山英生 aoyamahideo	activist	146.1K	¥571	+36.4%	¥6M ($36K)
2024-08-21	BUY	negotiated	青山英生 aoyamahideo	activist	146.1K	¥571	-	-
2024-08-21	BUY	negotiated	青山深雪 Aoyama Miyuki	strategic	130.0K	¥571	-	-
2024-08-21	BUY	negotiated	青山深雪 Aoyama Miyuki	strategic	130.0K	¥571	-	-
2024-08-21	BUY	Market Buy	青雲堂株式会社 Seiundo Co., Ltd.	strategic	1.3M	¥571	-	-
2024-08-21	BUY	negotiated	青山深雪 Aoyama Miyuki	strategic	130.0K	¥571	-	-
2024-08-21	BUY	negotiated	青山英生 aoyamahideo	activist	146.1K	¥571	-	-
2024-08-21	BUY	negotiated	青山英生 aoyamahideo	activist	146.1K	¥571	+36.4%	¥6M ($36K)
2024-08-21	BUY	negotiated	青雲堂株式会社 Seiundo Co., Ltd.	strategic	1.3M	¥571	-	-
2024-08-21	BUY	negotiated	青雲堂株式会社 Seiundo Co., Ltd.	strategic	1.3M	¥571	-	-
2024-08-21	BUY	Market Buy	青山深雪 Aoyama Miyuki	strategic	130.0K	¥571	-	-
2024-08-21	BUY	negotiated	青雲堂株式会社 Seiundo Co., Ltd.	strategic	1.3M	¥571	-	-
2023-08-28	BUY	Market Buy	青山英生 aoyamahideo	activist	136.3K	¥587	+32.7%	¥9M ($56K)
2023-08-28	BUY	negotiated	青山英生 aoyamahideo	activist	136.3K	¥587	+32.7%	¥9M ($56K)
2023-08-28	BUY	negotiated	青山英生 aoyamahideo	activist	136.3K	¥587	+32.7%	¥9M ($56K)
2023-08-28	BUY	negotiated	青雲堂株式会社 Seiundo Co., Ltd.	strategic	1.3M	¥587	-	-
2023-08-28	BUY	negotiated	青山深雪 Aoyama Miyuki	strategic	130.0K	¥587	-	-
2023-08-28	BUY	negotiated	青山深雪 Aoyama Miyuki	strategic	130.0K	¥587	-	-
2023-08-28	BUY	Market Buy	青雲堂株式会社 Seiundo Co., Ltd.	strategic	1.3M	¥587	-	-
2023-08-28	BUY	Market Buy	青雲堂株式会社 Seiundo Co., Ltd.	strategic	1.3M	¥587	-	-
2023-08-28	BUY	Market Buy	青山深雪 Aoyama Miyuki	strategic	130.0K	¥587	-	-
2023-08-28	BUY	Market Buy	青山英生 aoyamahideo	activist	136.3K	¥587	+32.7%	¥9M ($56K)
2023-08-28	BUY	negotiated	青雲堂株式会社 Seiundo Co., Ltd.	strategic	1.3M	¥587	-	-
2023-08-28	BUY	Market Buy	青山深雪 Aoyama Miyuki	strategic	130.0K	¥587	-	-
2023-08-22	BUY	Market Buy	青山英生 aoyamahideo	activist	136.3K	¥554	+40.6%	¥8M ($53K)
2023-08-22	BUY	negotiated	青山英生 aoyamahideo	activist	136.3K	¥554	+40.6%	¥8M ($53K)
2023-08-22	BUY	negotiated	青雲堂株式会社 Seiundo Co., Ltd.	strategic	1.3M	¥554	-	-
2023-08-22	BUY	negotiated	青山深雪 Aoyama Miyuki	strategic	130.0K	¥554	-	-
2023-08-22	BUY	Market Buy	青雲堂株式会社 Seiundo Co., Ltd.	strategic	1.3M	¥554	-	-
2023-08-22	BUY	Market Buy	青山深雪 Aoyama Miyuki	strategic	130.0K	¥554	-	-
2022-04-05	SELL	negotiated	青山英生 aoyamahideo	activist	121.3K	¥353	-120.7%	¥147M ($949K)
2022-04-05	BUY	negotiated	青雲堂株式会社 Seiundo Co., Ltd.	strategic	1.3M	¥353	+120.7%	¥152M ($979K)
2022-04-05	BUY	negotiated	青山深雪 Aoyama Miyuki	strategic	130.0K	¥353	-	-
2022-02-07	SELL	Market Buy	名古屋中小企業投資育成株式会社 Nagoya Small and Medium Business Investment & Consultation CO.,Ltd.	passive	399.0K	¥301	-158.8%	¥67M ($435K)
2022-02-07	BUY	Market Buy	名古屋中小企業投資育成株式会社 Nagoya Small and Medium Business Investment & Consultation CO.,Ltd.	passive	399.0K	¥301	-	¥67M ($435K)

Frequently asked questions

Who has been buying ktk Inc. stock?: 4 distinct investors have filed 10 disclosed large-shareholding filings in ktk Inc. (3035), most recently on 2025-08-22. 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 ktk Inc. have?: ktk Inc. has 10 buy-side and 2 sell-side disclosures on record, covering ¥221M ($1.4M) in total reported value, spanning 2022-02-07 to 2025-08-22.
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.