Most founders at the seed stage do not spend a lot of time thinking about their TSE listing requirements. That is reasonable. There are more immediate problems to solve. But the equity decisions made in the first two years of a company's life have a way of showing up as problems in the two years before an IPO, and some of those problems are expensive to fix late.
The Tokyo Stock Exchange, across its Growth, Standard, and Prime market tiers, has disclosure and listing review requirements that are specific to Japanese-incorporated companies. The Financial Instruments and Exchange Act (Kinyu Shohin Torihiki Ho) and the TSE's own listing regulations impose requirements on shareholder structure, option pools, corporate governance, and financial record-keeping that differ in important ways from what a Nasdaq or NYSE listing would require.
The "kashikabu" problem and equity concentration
One of the areas the TSE reviews carefully in listing examinations is the distribution of ownership. A company where founders hold 90 percent of the shares and a handful of option holders hold the rest may face scrutiny about whether there is adequate public float potential and whether the governance structure is appropriate for a listed company. The TSE wants to see a shareholder base that includes institutional investors with governance oversight capacity, not just a tightly controlled founder-and-family structure.
This does not mean you need to dilute yourself before you are ready. But it does mean that if your current cap table shows a concentration that will be a problem in a TSE review, you want to know that early enough to address it through normal financing activity rather than through forced restructuring immediately before you file.
Option pool treatment in TSE listing preparation
During the listing preparation process, usually 24 to 36 months before the actual filing, your underwriter will request a detailed analysis of your outstanding option pool. This analysis looks at how many options are outstanding, how many are vested, what the exercise prices are across all grants, and what the implied dilution is at the expected IPO price range.
Options with exercise prices significantly below the expected IPO price create a specific disclosure question: these options represent compensation that was issued at below-market-to-IPO rates, and the difference is a form of historical compensation expense. The accounting treatment under Japanese GAAP (J-GAAP) or IFRS for stock-based compensation requires this expense to be recognized, and the underwriter and auditor will both scrutinize whether the historical grant prices were set at fair market value at the time of grant.
This is the direct connection between getting the zeisei-tekikaku exercise price calculation right at grant time and IPO readiness three years later. If your grant prices were defensibly set at FMV at the time of issuance, the stock compensation accounting is straightforward. If grant prices were set arbitrarily or below calculated FMV, you may face a challenge in the accounting review that requires restating historical compensation expense.
Shareholder register quality
The TSE listing review includes verification of the shareholder register (kabunushi meibo). For a private company that has operated informally, the shareholder register may not be fully current. Share transfers that were not registered, convertible instruments that converted but were not updated in the registry, option exercises that happened but were not formalized: all of these create gaps between the internal cap table and the official registry.
Closing these gaps in the 12 to 18 months before a filing is a standard part of IPO preparation. But the process is much simpler if the underlying records are already accurate. A company that has been keeping its internal cap table up to date with every transaction, with references to the underlying board authorizations and agreements, can reconcile to the official registry quickly. A company that has been managing its cap table on a shared spreadsheet with limited documentation will spend considerable time and professional fees on this reconciliation.
The option pool size question at listing
One of the questions the TSE listing review and the underwriter will ask is about the size of your remaining option pool. A large unissued pool represents potential dilution that post-IPO shareholders are being asked to accept. Underwriters often recommend that companies reduce their unissued pool to a reasonable size before listing, either by formally canceling the excess authorization or by converting the unissued portion into shares and re-authorizing a smaller pool.
This means that the option pool decisions you make at seed stage affect your IPO structure. A pool that was set generously at the beginning, but that was not used fully, needs to be right-sized before listing. That is a shareholder resolution process, and if your founding documents or shareholder agreements have complex approval requirements, it can take time.
Lock-up and vesting cliff considerations for the IPO window
At a TSE IPO, major shareholders and option holders are typically subject to lock-up agreements for 180 days following the listing. This is standard market practice, enforced through the underwriting agreement rather than securities law. From the perspective of equity management, this means that employees with fully vested options who are planning to exercise at or around the IPO need to understand that they will not be able to sell their shares immediately after exercise.
For employees whose options will be in-the-money at the IPO price, the sequencing matters: exercise before or at the IPO lock-up release, hold through the lock-up period, and then sell after the 180-day window. Under the zeisei-tekikaku regime, the capital gains tax treatment applies to the difference between the exercise price and the eventual sale price, not the difference between the exercise price and the market price on the day of exercise. This is one of the key advantages of the qualified regime: there is no taxable event at exercise, only at sale.
Starting the IPO equity cleanup early
The founders who have the smoothest IPO processes from an equity perspective are the ones who treated their cap table as a living compliance document from day one, not as a spreadsheet they would clean up someday. Every grant properly documented. Every exercise promptly reflected. Every convertible instrument modeled and updated at each financing event.
A company filing for a TSE Growth Market listing in 2028 that was founded in 2024 has roughly four years to get its equity records right. The founders who spend 20 minutes per month on cap table hygiene will find those four years more than sufficient. The founders who defer this to the pre-IPO preparation process will find themselves in an expensive and stressful catch-up exercise right when they have the least time to spare.
