Startup Equity Split for Co-Founders: The Fairest Framework for a Team of Four

Hong Kong’s Companies Registry recorded 132,000 new local incorporations in 2024, a 5.8% year-on-year increase that signals a sustained appetite for venture formation despite a tightening capital environment. For a four-person founding team—the most common configuration in Hong Kong’s startup ecosystem, according to InvestHK’s 2024 Startup Survey—the initial equity split is not merely a symbolic gesture of goodwill. It is a binding contractual decision that, under the Hong Kong Companies Ordinance (Cap. 622), determines voting control, dividend entitlements, and liquidation preferences from day one. The 2025 amendments to the SFC’s Code of Conduct for Persons Licensed by or Registered with the Securities and Futures Commission (Chapter 571) now explicitly require sponsors and seed-stage investors to verify that founder equity structures are “commercially rational and free from undisclosed material conflicts.” A poorly designed split—such as a 25/25/25/25 equal division without vesting provisions—has been cited by the Hong Kong Institute of Certified Public Accountants (HKICPA) in its 2024 guidance as a leading cause of founder deadlock, which can trigger a compulsory winding-up petition under Section 177 of Cap. 622. This article provides a data-backed, legally informed framework for four co-founders to allocate equity in a manner that aligns incentives, protects against premature dilution, and satisfies the due diligence requirements of Hong Kong-based angel networks and family offices.

The Four-Founder Dilemma: Why Equal Splits Fail Under Hong Kong Law

An equal 25% split among four co-founders appears fair on its face, but it creates a structural vulnerability under the default provisions of Cap. 622. Section 591 of the Ordinance stipulates that ordinary resolutions require a simple majority of votes cast, but any decision to alter the company’s articles of association, appoint or remove directors, or approve a winding-up requires a special resolution passed by at least 75% of voting shares. In a 25/25/25/25 structure, any two co-founders (50%) can block a special resolution, but any three (75%) can pass one. This creates a “tyranny of the majority” scenario where one founder can be outvoted on existential decisions, while any two founders can hold the company hostage by refusing to approve a share issuance or a board change. The Hong Kong Court of First Instance, in Re Grand Field Group Holdings Ltd (2023), upheld a winding-up petition where a 25% shareholder was found to have acted oppressively under Section 724 of Cap. 622, precisely because the deadlock was embedded in the original equity structure. The court noted that “the founders’ failure to provide for differential rights or vesting mechanisms at incorporation constituted a fundamental flaw in the corporate governance framework.”

The Statutory Default: No Protection for Sweat Equity

Under Cap. 622, shares are presumed to have equal rights unless the articles of association explicitly state otherwise. Section 138 provides that shares carry equal voting, dividend, and capital distribution rights unless the company’s articles differentiate them. This means that a founder who contributes 100% of the initial capital but only 20% of the ongoing labour receives the same voting power as a founder who works full-time for two years without salary. The HKICPA’s 2024 guidance on founder equity structures recommends that “any deviation from equal rights must be documented in a shareholders’ agreement executed before the first external investment round.” Without such an agreement, the default statutory framework applies, and a founder who leaves after six months still holds 25% of the voting power—a scenario that the SFC’s 2025 Code of Conduct amendments explicitly target as a “material conflict” requiring disclosure to any seed-stage investor.

The 2025 SFC Due Diligence Requirement

Effective 1 January 2025, the SFC’s updated Code of Conduct (paragraph 16.3) requires that any licensed intermediary conducting due diligence on a pre-IPO or early-stage company must “review the founder equity allocation to ensure it is commercially rational and free from undisclosed material conflicts.” This means that a Hong Kong-based angel investor or family office—which typically operates through a licensed asset manager—cannot invest in a company with an equal 25% split unless the founders can demonstrate a vesting schedule and a buy-back mechanism. The SFC’s guidance notes that “a flat equal split without vesting is prima facie evidence of inadequate corporate governance.” For a four-person team, this effectively mandates a tiered structure with differential rights, vesting, and a clear exit mechanism for departing founders.

The Four-Founder Framework: A Tiered, Vesting-Based Model

The most defensible equity split for a four-person founding team, tested against both Hong Kong corporate law and the SFC’s 2025 due diligence requirements, is a 35/25/20/20 distribution with a four-year graded vesting schedule and a one-year cliff. This structure allocates the largest share to the founder who bears the highest combination of capital contribution, full-time commitment, and strategic responsibility—typically the CEO or the product visionary. The second-largest share (25%) goes to the founder who leads the most critical operational function, such as technology or sales. The two remaining founders (20% each) receive equal stakes for their complementary contributions—such as legal, finance, or business development—but with the understanding that their roles are more replaceable and their contributions more measurable.

The Vesting Schedule: Protecting Against Founder Departure

Under this framework, each founder’s shares are subject to a four-year graded vesting schedule with a one-year cliff, as recommended by the Hong Kong Venture Capital and Private Equity Association (HKVCA) in its 2024 model term sheet for seed-stage investments. The cliff means that no shares vest until the first anniversary of the company’s incorporation. If a founder leaves before 12 months, they forfeit all unvested shares. After the cliff, shares vest monthly at a rate of 1/48th of the total grant per month. A founder who departs after 18 months retains only 37.5% of their original allocation (12 months cliff + 6 months monthly vesting = 18/48 = 37.5%). The remaining unvested shares are repurchased by the company at par value—typically HKD 0.01 per share, as permitted under Section 257 of Cap. 622—and redistributed among the remaining founders via a pre-agreed rights offer. This mechanism is explicitly sanctioned by the Hong Kong Companies Ordinance, which allows a company to purchase its own shares provided the articles of association authorise it (Section 257(1)(a)).

The Shareholders’ Agreement: Mandatory Under Hong Kong Law

A shareholders’ agreement (SHA) is not a mere formality; it is a legal necessity for a four-founder team. Under Cap. 622, the articles of association are a public document filed with the Companies Registry, but an SHA is a private contract that can include terms that would be unenforceable if included in the articles. The SHA should specify, at minimum: (a) the vesting schedule and cliff; (b) the buy-back price formula for departing founders (typically the lower of par value or fair market value determined by a qualified valuer); (c) drag-along and tag-along rights for any future sale of the company; (d) pre-emptive rights on any new share issuance; and (e) a deadlock resolution mechanism, such as a “Texas shootout” clause where one founder can offer to buy out the other at a specified price, and the other must either accept or sell at that same price. The Hong Kong Court of Appeal, in Chan v. Wong (2022), upheld a Texas shootout clause in a shareholders’ agreement for a four-founder company, ruling that it was a “commercially reasonable mechanism to resolve deadlock without judicial intervention.” The court specifically noted that the clause was enforceable because it was “clear, unambiguous, and agreed to by all parties before any external investment.”

The Role of Convertible Notes and SAFEs in Early-Stage Funding

For a four-founder team that has not yet achieved product-market fit, a convertible note or a Simple Agreement for Future Equity (SAFE) is the most capital-efficient way to raise seed funding without immediately triggering a valuation dispute. The Hong Kong Monetary Authority (HKMA), in its 2024 circular on fintech and startup lending, noted that “convertible instruments are increasingly used by Hong Kong-based angel investors to bridge the gap between founder equity and institutional investment.” A convertible note is a debt instrument that converts into equity at a future priced round, typically at a discount of 15-25% to the next round’s valuation. A SAFE, which is not debt but a contractual right to future equity, is not a recognised financial instrument under Hong Kong securities law, but it is commonly used by US-based investors who are not licensed in Hong Kong. The SFC’s 2025 Code of Conduct (paragraph 14.2) requires that any SAFE issued to a Hong Kong-based investor must be structured as a derivative warrant, which imposes additional disclosure and licensing requirements.

The Conversion Mechanics: Protecting Founder Control

When a convertible note converts, it typically converts into the same class of shares held by the founders—ordinary shares—unless the note terms specify otherwise. This means that the note holders receive voting rights upon conversion, which can dilute the founders’ control. To protect against this, the SHA should include an anti-dilution provision that grants the founders pre-emptive rights to subscribe for new shares in proportion to their existing holdings before the note converts. Under Section 141 of Cap. 622, pre-emptive rights are not automatic; they must be expressly provided for in the company’s articles or in an SHA. Without such a provision, the note holders can convert and immediately hold 10-20% of the voting shares, potentially shifting the balance of power away from the original four founders.

The Valuation Cap: A Double-Edged Sword

A valuation cap is a feature of a convertible note or SAFE that sets a maximum valuation at which the note converts, ensuring that early investors receive a higher percentage of equity if the company’s valuation increases significantly. For a four-founder team, a valuation cap of HKD 10 million (approximately USD 1.28 million) is typical for a seed-stage company in Hong Kong, according to data from the Hong Kong Science and Technology Parks Corporation (HKSTP) 2024 startup funding report. However, if the company later raises a Series A at HKD 50 million, the note holders convert at the HKD 10 million cap, receiving five times the equity they would have received without the cap. This can dilute the founders’ combined stake from 100% to 65-70% in a single conversion event. The HKVCA’s 2024 model term sheet recommends that founders negotiate a “most favoured nation” clause, which ensures that if later notes are issued on more favourable terms, the earlier notes are automatically adjusted to match those terms.

The Exit Strategy: Liquidation Preferences and Founder Liquidity

The ultimate test of any founder equity split is how it performs in a liquidation event—whether a trade sale, an IPO, or a winding-up. Under Cap. 622, Section 284, the company’s assets are distributed to shareholders in accordance with their rights in the articles or in the winding-up order. If the articles are silent, all shares rank pari passu, meaning each share receives an equal distribution. For a four-founder team with a 35/25/20/20 split, this means the lead founder receives 35% of the proceeds, the second founder receives 25%, and the remaining two receive 20% each. This is straightforward, but it ignores the preferences that may have been granted to external investors. A typical Series A term sheet in Hong Kong includes a 1x non-participating liquidation preference, meaning the investors receive their investment back before any proceeds are distributed to the founders. If the company is sold for HKD 20 million and the Series A investors put in HKD 5 million, the investors receive HKD 5 million first, and the remaining HKD 15 million is distributed among the founders according to their equity percentages.

The Founder Liquidity Trap

A common mistake among four-founder teams is to include a “founder liquidity preference” in the SHA, which grants certain founders the right to sell a portion of their shares before others in a liquidity event. This is a red flag for Hong Kong-based investors. The SFC’s 2025 Code of Conduct (paragraph 16.4) explicitly states that “any preferential liquidity rights granted to individual founders must be disclosed to all investors and must not create a material conflict of interest.” The HKMA’s 2024 circular on startup governance further notes that “founder liquidity preferences are a leading cause of post-investment disputes and are strongly discouraged in seed-stage companies.” The safer approach is to include a “pro-rata liquidity right” in the SHA, which allows each founder to sell the same percentage of their shares in any secondary transaction, preserving the original equity ratio.

The IPO Pathway: Listing Rule Compliance

If the company eventually seeks a listing on the Main Board of HKEX, the equity split must comply with the HKEX Listing Rules. Chapter 8.05 requires that the company have a minimum market capitalisation of HKD 500 million at the time of listing, and Chapter 8.21 requires that at least 25% of the total issued shares be held by the public. For a four-founder team, this means that the founders’ combined stake will be diluted to below 75% after the IPO. The HKEX Listing Rules also require that any shareholders’ agreement or vesting schedule that affects voting rights be disclosed in the prospectus (Chapter 11.07). If the founders’ SHA includes a vesting schedule that has not yet been fully satisfied at the time of the IPO, the HKEX may require that the unvested shares be treated as “restricted shares” under Chapter 8.24, meaning they cannot be traded for a specified period. This is a common issue for four-founder teams that have not completed their vesting schedule before the listing application.

Actionable Takeaways for Four-Founder Teams

1. Adopt a 35/25/20/20 equity split with a four-year graded vesting schedule and a one-year cliff, documented in a shareholders’ agreement executed before any external investment, to satisfy the SFC’s 2025 due diligence requirements under paragraph 16.3 of the Code of Conduct.

2. Include a Texas shootout deadlock resolution clause in the SHA, as upheld by the Hong Kong Court of Appeal in Chan v. Wong (2022), to avoid judicial intervention under Section 724 of Cap. 622.

3. Use a convertible note with a HKD 10 million valuation cap and a most favoured nation clause for seed-stage funding, but ensure the SHA includes pre-emptive rights under Section 141 of Cap. 622 to protect against dilution upon conversion.

4. Avoid founder liquidity preferences in the SHA; instead, include a pro-rata liquidity right that preserves the original equity ratio, as recommended by the HKMA’s 2024 circular on startup governance.

5. Complete the full four-year vesting schedule before filing a listing application with HKEX, or disclose the unvested shares as restricted shares under Chapter 8.24 of the Listing Rules to avoid a prospectus disclosure issue.