Quorum
RyoNTracking corporate change in Japan — every week, from primary filings.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 9 | Founded | 2 months ago | Last Issue | 17 days ago |
| Active | |||||
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quorumjapan.substack.comLatest Issues
A Different Activist, the Same Ceiling
Every number in this newsletter’s structural-floor thesis so far has come from one fund: Oasis Management. That invites an obvious question. Is the 20-to-25-point ceiling on activist proposals an Oasis-specific pattern, or a Japan-market on...
The Closest Vote of the Season Wasn't an Activist's. It Was the Company's Own.
This season’s structural floor has held for three companies so far. At KADOKAWA, Kyocera, and Iyogin, activist and minority shareholder proposals — arguments backed in two cases by both ISS and Glass Lewis — topped out between 8.31% and 26....
A Regional Bank Almost Renamed Itself "Shareholders in Hell Holdings." Now the Rules Are Changing.
In April 2026, a shareholder holding 302 shares of Iyogin Holdings — 0.01% of total voting rights — submitted a formal proposal for the company’s annual general meeting. They wanted the company to change its legal name to Iyogin Kabu Nushi...
Two Shells, One Fund, One Day: The Bain Capital Double Delisting
In issue 3, I logged three take-privates from a single EDINET filing window. Two of them shared a common backer — Bain Capital — operating through two separately named acquisition vehicles, with no cross-reference anywhere in either set of...
A Company an Activist Is Watching Just Sold About ¥3 Billion of Another Company's Stock
Japanese companies own large blocks of each other’s shares. A manufacturer holds its bank; the bank holds the manufacturer; a supplier holds its customer. These are cross-shareholdings — stakes held not for return but for the relationship —...
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Authors
The writers behind this newsletter.
Former Apple, non-engineer. I read Japan's primary filings in the original and write about corporate change. On the side I build trading bots for fun and run a one-person company on AI agents. Independent research, not advice.
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