Who has been buying Ichinen Holdings Co., Ltd. stock?

8 distinct investors have filed 19 disclosed large-shareholding filings in Ichinen Holdings Co., Ltd. (9619), most recently on 2026-05-13. 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 Ichinen Holdings Co., Ltd. have?

Ichinen Holdings Co., Ltd. has 19 buy-side and 6 sell-side disclosures on record, covering ¥3.2B ($20.3M) in total reported value, spanning 2021-04-06 to 2026-05-13.

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.

Ichinen Holdings Co., Ltd. 9619

Company

株式会社イチネンホールディングスIchinen Holdings Co., Ltd.

Investors

Buys

Total Value

¥3.2B ($20.3M)

Avg Return

+57.75%

Last Filing

2026-05-13

Ichinen Holdings Co., Ltd. (9619) has 19 disclosed large-shareholding filings and 6 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥3.2B ($20.3M) in reported transaction value. The earliest filing StockDrifts holds for Ichinen Holdings Co., Ltd. is dated 2021-04-06; the most recent is 2026-05-13. Across these filings the average return since disclosure is +57.75%, 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
2026-08-12	BUY	Market Buy	光通信株式会社	passive	1.1M	¥2,601	+6.2%	¥2.8B ($17.9M)
2026-08-12	BUY	Market Buy	株式会社UH6	passive	125.1K	¥2,601	+6.2%	¥325M ($2.1M)
2026-05-13	BUY	Market Buy	第一燃料株式会社 DAIICHI NENRYO CO.,LTD.	strategic	2.8M	¥2,151	+28.4%	¥118M ($758K)
2026-05-13	BUY	unknown	黒田雅史 KURODA MASASHI	strategic	708.3K	¥2,151	+28.4%	¥1.5B ($9.8M)
2025-09-19	SELL	negotiated	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	280.9K	¥1,999	-38.2%	¥29M ($184K)
2025-09-19	SELL	negotiated	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	535.7K	¥1,999	-38.2%	¥432M ($2.8M)
2025-09-19	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	470.0K	¥1,999	+38.2%	¥19M ($123K)
2023-04-21	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	47.3K	¥1,332	-107.4%	¥843M ($5.4M)
2023-04-21	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	169.8K	¥1,332	-	-
2023-04-21	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	836.2K	¥1,332	+107.4%	¥10M ($63K)
2023-04-20	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	470.0K	¥1,335	-	-
2023-04-20	BUY	negotiated	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	766.7K	¥1,335	+106.9%	¥97M ($627K)
2023-04-20	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	301.8K	¥1,335	+106.9%	¥13M ($84K)
2023-03-23	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	680.5K	¥1,244	+122.0%	¥528M ($3.4M)
2023-03-23	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	169.8K	¥1,244	-	-
2023-03-23	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	passive	830.1K	¥1,244	-122.0%	¥24M ($156K)
2022-11-21	BUY	unknown	第一燃料株式会社 DAIICHINENRYOU CO., LTD.	strategic	2.8M	¥1,234	-	-
2022-11-21	BUY	Market Buy	第一燃料株式会社 DAIICHINENRYOU CO., LTD.	strategic	2.8M	¥1,234	+123.8%	¥129M ($831K)
2022-11-21	BUY	unknown	第一燃料株式会社 DAIICHINENRYOU CO., LTD.	strategic	2.8M	¥1,234	-	-
2022-03-22	BUY	Market Buy	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	693.6K	¥1,318	+109.6%	¥54M ($351K)
2022-03-22	BUY	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	292.1K	¥1,318	+109.6%	¥13M ($83K)
2022-03-22	BUY	Market Buy	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	470.0K	¥1,318	+109.6%	¥10M ($62K)
2022-01-21	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	passive	849.1K	¥1,276	+116.5%	¥1.1B ($7.0M)
2022-01-21	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	169.8K	¥1,276	+116.5%	¥217M ($1.4M)
2022-01-21	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	255.8K	¥1,276	+116.5%	¥326M ($2.1M)
2021-09-22	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	470.0K	¥1,350	-104.6%	¥472M ($3.0M)
2021-09-22	BUY	negotiated	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	660.9K	¥1,350	+104.6%	¥20M ($129K)
2021-09-22	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	284.7K	¥1,350	+104.6%	¥3M ($21K)
2021-05-12	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	14.4K	¥1,242	-122.4%	¥776M ($5.0M)
2021-05-12	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	169.8K	¥1,242	-	-
2021-05-12	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	841.2K	¥1,242	-	-
2021-04-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	640.9K	¥1,389	+98.8%	¥544M ($3.5M)
2021-04-07	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	169.8K	¥1,389	-	-
2021-04-07	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	passive	840.9K	¥1,389	-	-
2021-04-06	BUY	unknown	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	820.0K	¥1,139.854	-	-
2021-04-06	BUY	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	648.3K	¥1,139.854	+142.3%	¥42M ($271K)
2021-04-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	283.5K	¥1,139.854	+142.3%	¥129M ($833K)

Frequently asked questions

Who has been buying Ichinen Holdings Co., Ltd. stock?: 8 distinct investors have filed 19 disclosed large-shareholding filings in Ichinen Holdings Co., Ltd. (9619), most recently on 2026-05-13. 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 Ichinen Holdings Co., Ltd. have?: Ichinen Holdings Co., Ltd. has 19 buy-side and 6 sell-side disclosures on record, covering ¥3.2B ($20.3M) in total reported value, spanning 2021-04-06 to 2026-05-13.
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.