Open House Group

A tender offer for Sanei Architecture Planning (2023)

Key decision·2023· Open House Group — the full company history →

Choosing to buy a weakened competitor

This acquisition was different in character from Hawk One in 2018. That was a healthy, growing company bought through negotiation at a market price; this was a company with strains in its funding and its trading relationships, taken over and carried all the way to a delisting. A price set 26.48% above the previous close is hard to describe as beating down a weakened counterpart. It is rather that the circumstance — the seller needing to part with its shares as a condition of its own rebuilding — governed both the price and the procedure.

For the buyer, taking in a company with that much supply capacity at that moment was no small thing. But credit with trading partners and with banks is not an asset you can buy; it can only be rebuilt afterwards. In the year to September 2024 revenue grew to $8.6B (¥1.3tn) while operating profit fell below the prior year, and closing that gap between scale and profitability remains unfinished business. Whether a company that has repeatedly used the instrument of buying up its own competitors can bring what it buys around to its own way of selling — under a management that has now taken over from the founder, that answer is still to come.

Revenue and net margin, FY2018–FY2025

Revenue in ¥ bn (bars) and net margin in % (line), for the years around the decision. Shaded columns are FY2023 onwards — after it was taken.

Source: securities reports

Read the full dossier in Japanese →

The Japanese edition carries the complete record of this decision — the situation that forced it, the options weighed, what actually followed, and the sources behind every claim.

Other key decisions at Open House Group


Yen amounts are converted at the average rate of each figure’s own year — not today’s rate; the revenue chart is shown in yen. Exchange rates & sources — the full ¥/US$ table →


Disclaimer

  • This page is provided for general information only and is not investment advice, nor a recommendation to buy or sell any security.
  • Figures are compiled independently and include our own estimates, approximations and machine-processed data; we make no warranty as to their accuracy or completeness.
  • Sources are primarily each company’s securities reports and other public filings, but errors and omissions may remain.
  • Any use of this information is at the reader’s own risk. Past performance does not indicate future results.
  • Company names, logos and other marks belong to their respective owners.

Data API

Open House Group’s history, financials, executives and shareholders are published as static JSON — no key, plain GET. Full specification →

Method Endpoint Returns
GET /api/companies.json All companies
GET /api/3288/manifest.json Resource index
GET /api/3288/history.json History overview
GET /api/3288/timeline.json Chronology
GET /api/decisions.json All management decisions (index)
GET /api/3288/decisions.json Management decisions (index)
GET /api/3288/decisions/{slug}.json One decision (full dossier)
GET /api/3288/executives.json Executives
GET /api/3288/shareholders.json Major shareholders
GET /api/3288/financials.json Financial statements
GET /api/3288/financials-longterm.json Long-term results
GET /api/3288/segments.json Business segments
GET /api/3288/regions.json Sales by region
GET /api/3288/workforce.json Workforce