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Nihon Trim Co., Ltd. 6788

Company
株式会社日本トリムNihon Trim Co., Ltd.
Investors
6
Buys
15
Total Value
¥10.8B ($70.0M)
Avg Return
+8.16%
Last Filing
2026-05-01

Nihon Trim Co., Ltd. (6788) has 15 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥10.8B ($70.0M) in reported transaction value. The earliest filing StockDrifts holds for Nihon Trim Co., Ltd. is dated 2022-11-16; the most recent is 2026-05-01. 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 +8.16%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-07-23BUYMarket Buy
プレミアムウォーター株式会社
passive800.0K¥4,600+8.7%¥263M ($1.7M)
2026-07-23BUYMarket Buy
株式会社プレミアムウォーターホールディングス
passive750.2K¥4,600+8.7%¥155M ($1.0M)
2026-07-23BUYMarket Buy
光通信株式会社
passive69.8K¥4,600+8.7%¥321M ($2.1M)
2026-06-11BUYMarket Buy
プレミアムウォーター株式会社
passive743.1K¥4,345+3.1%¥380M ($2.5M)
2026-06-11BUYMarket Buy
株式会社プレミアムウォーターホールディングス
passive717.2K¥4,345+3.1%¥3.1B ($20.1M)
2026-06-11BUYMarket Buy
光通信株式会社
passive69.8K¥4,345+3.1%¥303M ($2.0M)
2026-05-01BUYMarket Buy
株式会社プレミアムウォーターホールディングス
passive717.2K¥4,260+1.1%¥3.1B ($19.7M)
2026-05-01BUYMarket Buy
プレミアムウォーター株式会社
passive655.3K¥4,260+1.1%¥372M ($2.4M)
2026-05-01BUYMarket Buy
光通信株式会社
passive69.8K¥4,260+1.1%¥297M ($1.9M)
2026-03-04BUYMarket Buy
プレミアムウォーター株式会社
passive567.5K¥4,765-7.9%¥2.5B ($16.1M)
2026-03-04BUYMarket Buy
株式会社プレミアムウォーターホールディングス
passive717.2K¥4,765+7.9%¥3.1B ($20.3M)
2026-03-04BUYMarket Buy
光通信株式会社
passive69.8K¥4,765+7.9%¥306M ($2.0M)
2026-01-29BUYMarket Buy
光通信株式会社
passive69.8K¥4,780+8.2%¥306M ($2.0M)
2026-01-29BUYMarket Buy
プレミアムウォーター株式会社
passive479.9K¥4,780-8.2%¥2.1B ($13.6M)
2026-01-29BUYMarket Buy
株式会社プレミアムウォーターホールディングス
passive717.2K¥4,780+8.2%¥3.1B ($20.3M)
2025-12-23BUYMarket Buy
プレミアムウォーター株式会社
passive391.4K¥5,020-12.5%¥1.7B ($11.1M)
2025-12-23BUYMarket Buy
株式会社プレミアムウォーターホールディングス
passive717.2K¥5,020+12.5%¥3.1B ($20.3M)
2025-12-23BUYMarket Buy
光通信株式会社
passive69.8K¥5,020+12.5%¥306M ($2.0M)
2025-11-18BUYMarket Buy
プレミアムウォーター株式会社
Premium Water Co., Ltd.
passive303.6K¥4,865-9.8%¥425M ($2.7M)
2025-11-18BUYMarket Buy
株式会社プレミアムウォーターホールディングス
Premium Water Holdings,Inc.
passive717.2K¥4,865-9.8%¥3.5B ($22.5M)
2025-11-18BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive69.8K¥4,865-9.8%¥340M ($2.2M)
2025-10-08BUYMarket Buy
プレミアムウォーター株式会社
Premium Water Co., Ltd.
passive216.1K¥4,610-4.8%¥411M ($2.7M)
2025-10-08BUYMarket Buy
株式会社プレミアムウォーターホールディングス
Premium Water Holdings,Inc.
passive717.2K¥4,610-4.8%¥3.3B ($21.3M)
2025-10-08BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive69.8K¥4,610-4.8%¥322M ($2.1M)
2025-08-27BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive69.8K¥4,565-3.8%¥319M ($2.1M)
2025-08-27BUYMarket Buy
プレミアムウォーター株式会社
Premium Water Co., Ltd.
passive127.5K¥4,565-3.8%¥451M ($2.9M)
2025-08-27BUYMarket Buy
株式会社プレミアムウォーターホールディングス
Premium Water Holdings,Inc.
passive717.2K¥4,565-3.8%¥3.3B ($21.1M)
2025-07-11BUYMarket Buy
プレミアムウォーター株式会社
Premium Water Co., Ltd.
passive28.9K¥4,460-1.6%¥129M ($832K)
2025-07-11BUYMarket Buy
株式会社プレミアムウォーターホールディングス
Premium Water Holdings,Inc.
passive717.2K¥4,460-1.6%¥270M ($1.7M)
2025-07-11BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive69.8K¥4,460-1.6%¥311M ($2.0M)
2025-05-22BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive69.8K¥4,030+8.9%¥281M ($1.8M)
2025-05-22BUYMarket Buy
株式会社プレミアムウォーターホールディングス
Premium Water Holdings,Inc.
passive656.1K¥4,030+8.9%¥356M ($2.3M)
2025-04-15BUYMarket Buy
株式会社プレミアムウォーターホールディングス
Premium Water Holdings,Inc.
passive568.0K¥3,895+12.7%¥354M ($2.3M)
2025-04-15BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive69.8K¥3,895+12.7%¥272M ($1.8M)
2025-03-19BUYMarket Buy
株式会社プレミアムウォーターホールディングス
Premium Water Holdings,Inc.
passive476.8K¥3,955+11.0%¥353M ($2.3M)
2025-03-19BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive69.8K¥3,955+11.0%¥276M ($1.8M)
2025-01-23BUYMarket Buy
株式会社プレミアムウォーターホールディングス
Premium Water Holdings,Inc.
passive388.1K¥3,595+22.1%¥1.4B ($9.0M)
2025-01-23BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive69.8K¥3,595+22.1%¥251M ($1.6M)
2023-04-07BUYunknown
アセットマネジメントOne株式会社
Asset Management One Co., Ltd.
other105.9K¥2,978+47.4%¥315M ($2.0M)
2023-04-07BUYunknown
みずほ信託銀行株式会社
Mizuho Trust & Banking Co., Ltd.
other432.9K¥2,978+47.4%¥1.3B ($8.3M)
2022-11-16SELLunknown
いちよしアセットマネジメント株式会社
Ichiyoshi Asset Management Co., Ltd.
other403.9K¥2,384-84.1%¥215M ($1.4M)

Frequently asked questions

Who has been buying Nihon Trim Co., Ltd. stock?
6 distinct investors have filed 15 disclosed large-shareholding filings in Nihon Trim Co., Ltd. (6788), most recently on 2026-05-01. 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 Nihon Trim Co., Ltd. have?
Nihon Trim Co., Ltd. has 15 buy-side and 1 sell-side disclosures on record, covering ¥10.8B ($70.0M) in total reported value, spanning 2022-11-16 to 2026-05-01.
Where does StockDrifts get Nihon Trim 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 Nihon Trim Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.