Yamadai Corporation: what insiders have been doing
Yamadai Corporation, founded in 1964, is a Chemicals company based in Miyagi Prefecture, Japan. Its directors and officers file their transactions with EDINET (Japan FSA). The last twelve months, up to 22 October 2026, brought 15 filings signed by 3 insiders.
None of the filings is a plain purchase or sale on the open market; they cover grants, option exercises and other movements. Compensation-driven entries like these are tracked, but they say little about how insiders judge the share price.
For context, the typical company on the same exchange (median of 3,367 companies) published 3 filings over the same period, against 15 filings here.
Insider buying of Yamadai Corporation has been absent for the past year. Between a trade and the moment it shows up on EDINET (Japan FSA), the median delay is 7 days. That lag is the time during which only the insider knows about the trade.
Elsewhere in the same sector, our signals recently picked up insider purchases at Fuller H B Co and Culp Inc. Every figure here comes from the filings published by EDINET (Japan FSA) and describes the past, not future prices; it is not investment advice.
Key facts
Headquarters: Miyagi Prefecture, Japan · Founded: 1964
Source: Wikidata (CC0).
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.
Financial data
as of FY 2026FY ended March 2026 · cache
- 15.9% of flowShareXTKSEDINET:S100Z1WO
- 15.2% of flowShareXTKSEDINET:S100YX0B
- 100.0% of flowShareXTKSEDINET:S100YU8A
- 12.4% of flowShareXTKSEDINET:S100YUXQ
- 11.5% of flowShareXTKSEDINET:S100YS33
- 10.7% of flowShareXTKSEDINET:S100YQB8
- 10.0% of flowShareXTKSEDINET:S100YOH2
- 9.2% of flowShareXTKSEDINET:S100YLD7
- ShareXTKSEDINET:S100YE8B
- 8.1% of flowShareXTKSEDINET:S100YDS0
- 6.9% of flowShareXTKSEDINET:S100Y9Z7
- 99.4% of flowShareXTKSEDINET:S100Y9V3
- ShareXTKSEDINET:S100Y86E
- ShareXTKSEDINET:S100Y6Z0
- ShareXTKSEDINET:S100Y5B1
- ShareXTKSEDINET:S100T3E7
- 33.3% of flowShareXTKSEDINET:S100T0XJ
- 33.4% of flowShareXTKSEDINET:S100T1CB
- 33.3% of flowShareXTKSEDINET:S100SZE9
19 of 19 declarations
About Yamadai Corporation
Yamadai Co., Ltd. is a company listed on the XTKS market, engaged in various business sectors in Japan.
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