株式会社KSK Stock: price and insider trades · Japan
2 insiders bought €2.1M of shares over the last 90 days, the latest by 株式会社エスアイエル, filed 09 Oct 2026.
株式会社KSK: what insiders have been doing
Every trade that managers of 株式会社KSK disclose to EDINET (Japan FSA) is tracked on this page. The company sits in the Technology sector. In the past year (26 October 2025 to 26 October 2026), 68 filings came from 6 insiders.
The record shows 21 purchases on the open market worth €2.1M, made by 2 insiders, against 32 sales worth €2.5M by 3 insiders. Sales outweigh purchases by €334k. Unlike grants, an open-market purchase is paid for by the insider, at the market price. Those buying include 2 major shareholders. One trade stands out by size: a purchase of €1.9M from 株式会社エスアイエル, disclosed on 9 October 2026, or 1.2% of market capitalisation.
For context, the typical company on the same exchange (median of 3,205 companies) published 3 filings over the same period, against 68 filings here. The full history, which starts in 2021, counts 43 purchases against 32 sales.
In the case of 1 purchase, another manager of the company was buying within the same 30 days. Purchases made close together by different insiders form what is called a cluster. The last purchase on record was published on 9 October 2026, which is 31 days ago. The median gap between a trade and its publication by EDINET (Japan FSA) is 24 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.
These figures are compiled from regulatory filings published by EDINET (Japan FSA). They describe what insiders did and are not a recommendation.
Who traded when
BuySaleSince the insiders bought
- -1.0%Entry JP¥1,550 · Close 23 Oct 2026 JP¥1,535
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
This 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:S100Z76K
- 232,200 shares@ JP¥1,450.001.19% mcap100.0% of flowShareXOFFEDINET:S100Z76K:T7Canonical exit: 31 Dec 2026 (T+90)
- 49.8% of flowShareXTKSEDINET:S100Z7B1
- 189,300 shares@ JP¥1,464.450.98% mcap75.4% of flowShareXOFFEDINET:S100Z7B1:T27
- 11,800 shares@ JP¥1,450.000.061% mcap26.9% of flowShareXOFFEDINET:S100Z7B1:T51
- 300 shares@ JP¥4,553.3320.0048% mcap0.4% of flowShareXOFFEDINET:S100Z7B1:T21
- 200 shares@ JP¥4,520.00340.0032% mcap0.2% of flowShareXOFFEDINET:S100Z7B1:T22
- 7,900 shares@ JP¥4,515.00010.13% mcap9.6% of flowShareXOFFEDINET:S100Z7B1:T23
- 1,700 shares@ JP¥1,524.36970.0092% mcap0.7% of flowShareXOFFEDINET:S100Z7B1:T25
- 1,200 shares@ JP¥1,524.370.0065% mcap2.9% of flowShareXOFFEDINET:S100Z7B1:T49
- 600 shares@ JP¥1,524.37150.0032% mcap1.8% of flowShareXOFFEDINET:S100Z7B1:T53
- 600 shares@ JP¥1,503.14940.0032% mcap1.8% of flowShareXOFFEDINET:S100Z7B1:T54
- 1,200 shares@ JP¥1,503.14940.0063% mcap2.8% of flowShareXOFFEDINET:S100Z7B1:T50
- 4,100 shares@ JP¥1,503.14990.022% mcap1.7% of flowShareXOFFEDINET:S100Z7B1:T26
- 33,300 shares@ JP¥1,468.070.17% mcap96.4% of flowShareXOFFEDINET:S100Z7B1:T55
- ShareXTKSEDINET:S100Z6MY
- 300 shares@ JP¥4,383.33250.0045% mcap2.9% of flowShareXOFFEDINET:S100Z3IB:T3
- 500 shares@ JP¥4,688.000.0079% mcap5.2% of flowShareXOFFEDINET:S100Z3IB:T31Canonical exit: 25 Nov 2026 (T+90)
- 900 shares@ JP¥4,737.21960.014% mcap9.5% of flowShareXOFFEDINET:S100Z3IB:T32Canonical exit: 26 Nov 2026 (T+90)
- 500 shares@ JP¥4,753.00130.0081% mcap5.3% of flowShareXOFFEDINET:S100Z3IB:T33Canonical exit: 29 Nov 2026 (T+90)
- 300 shares@ JP¥4,691.66850.0050% mcap3.2% of flowShareXOFFEDINET:S100Z3IB:T17
- 300 shares@ JP¥4,413.32870.0045% mcap3.0% of flowShareXOFFEDINET:S100Z3IB:T25Canonical exit: 16 Nov 2026 (T+90)
- 200 shares@ JP¥4,400.00170.0030% mcap1.9% of flowShareXOFFEDINET:S100Z3IB:T8
- 100 shares@ JP¥4,394.99540.0015% mcap1.0% of flowShareXOFFEDINET:S100Z3IB:T21Canonical exit: 5 Nov 2026 (T+90)
- 100 shares@ JP¥4,400.00390.0015% mcap1.0% of flowShareXOFFEDINET:S100Z3IB:T4
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About 株式会社KSK
KSK Corporation is a Japanese company specializing in the technology sector. It is listed on the XTKS market.
