1 insider bought €5.5M of shares over the last 90 days, the latest by BUSINESS BRAIN SHOWAOTA INC, filed 02 Nov 2026.
Nihon Knowledge Co,Ltd.: what insiders have been doing
Nihon Knowledge Co,Ltd. belongs to the Technology sector. Filings by its managers are published through EDINET (Japan FSA). In the past year (10 November 2025 to 10 November 2026), 36 filings came from 5 insiders.
The record shows 1 purchase on the open market worth €5.5M, made by 1 insider, against 29 sales worth €182k by 2 insiders. The amount is not disclosed for 28 filings. Unlike grants, an open-market purchase is paid for by the insider, at the market price. Those buying include 1 major shareholder. One trade stands out by size: a purchase of €5.5M from Business Brain Showaota Inc, disclosed on 2 November 2026, or 23.9% of market capitalisation.
The last insider purchase was made public on 2 November 2026, 8 days ago. The median gap between a trade and its publication by EDINET (Japan FSA) is 14 days. Until a filing is published, the market cannot know about the trade. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives.
Across the 3,241 companies tracked on its exchange, the median is 3 filings; at 36 filings, this issuer sits above that mark. Looking back to 2023, when coverage begins, insiders filed 1 purchase and 29 sales.
Elsewhere in the same sector, our signals recently picked up insider purchases at Basler Aktiengesellschaft and Lime Technologies AB (publ). Every figure here comes from the filings published by EDINET (Japan FSA) and describes the past, not future prices; it is not investment advice.
Who traded when
BuySaleThis score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2026FY ended March 2026 · cache
- ShareXTKSEDINET:S100ZCYM
- ShareXTKSEDINET:S100ZDX3
- 35,000 shares@ JP¥917.000.87% mcap100.0% of flowShareXOFFEDINET:S100YXXT:T1
- ShareXTKSEDINET:S100YXXT
- 1,600 sharesShareXTKSEDINET:S100ZAHQ:T24
- 5,000 sharesShareXTKSEDINET:S100ZAHQ:T25
- 5,100 sharesShareXTKSEDINET:S100ZAHQ:T22
- ShareXTKSEDINET:S100ZAHQ
- 4,100 sharesShareXTKSEDINET:S100ZAHQ:T23
- 6,400 sharesShareXTKSEDINET:S100ZAHQ:T26
- 7,700 sharesShareXTKSEDINET:S100ZAHQ:T27
- 2,400 sharesShareXTKSEDINET:S100ZAHQ:T28
- 7,900 sharesShareXTKSEDINET:S100ZAHQ:T29
- 5,100 sharesShareXTKSEDINET:S100ZAHQ:T30
- ShareXTKSEDINET:S100ZAWX
- 1,056,000 shares@ JP¥917.0023.90% mcap100.0% of flowShareXOFFEDINET:S100ZAWX:T1Canonical exit: 31 Jan 2027 (T+90)
- 5,200 sharesShareXTKSEDINET:S100Z8WT:T15
- 2,800 sharesShareXTKSEDINET:S100Z8WT:T16
- 1,700 sharesShareXTKSEDINET:S100Z8WT:T3
- 1,500 sharesShareXTKSEDINET:S100Z8WT:T5
- 4,800 sharesShareXTKSEDINET:S100Z8WT:T6
- 2,300 sharesShareXTKSEDINET:S100Z8WT:T8
- 1,000 sharesShareXTKSEDINET:S100Z8WT:T9
- 2,200 sharesShareXTKSEDINET:S100Z8WT:T17
- 1,000 sharesShareXTKSEDINET:S100Z8WT:T18
25 of 48 declarations
About Nihon Knowledge Co,Ltd.
日本ナレッジ株式会社 is a technology company listed on the XTKS market. It focuses on developing innovative solutions for the digital sector.
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