Dual Class Shares: How Founders Keep Voting Control

Key Takeaways

• Dual class shares give founders 10-to-1 or greater voting power; a founder with 25% economic ownership can retain 77%+ of the vote.
• S&P Dow Jones Indices stopped adding new multi-class companies to the S&P Composite 1500 in July 2017, affecting passive-flow demand.
• As founders sell shares over time, the wedge between economic ownership and voting control widens, 10% economics but 57% votes is a real scenario.
• Time-based sunset provisions (7–15 years post-IPO) are now standard in new dual-class IPOs after institutional pressure; perpetual structures face index exclusion.

What It Is

In a dual-class issuer, one class of stock entitles the holder to one vote per share (typical public class). Another class, held mostly by founders, early investors, or a family, carries ten or more votes per share. Some issuers have gone further and issued non-voting public stock, where the founder class is the only class with any voting rights.

Well-known examples:

• Alphabet (Google): Class A is 1 vote, Class B is 10 votes (held by founders), Class C is non-voting.
• Meta Platforms: Class A is 1 vote, Class B is 10 votes (founder-controlled).
• Snap Inc.: Class A (public) has zero votes, Class C (founders) has ten votes per share.
• Ford Motor Company: a family-controlled Class B structure dating back to 1956.

The structures are legal under Delaware corporate law and most other US state laws, but access to major equity indices and exchange listings depends on index-provider and exchange rules.

The Intuition

Founders often argue they need voting control to pursue long-horizon decisions without being displaced by short-term investors. The dual-class structure lets them raise equity from public markets while retaining decision rights. Institutional investors often push back because voting rights are normally how shareholders constrain management, and removing that lever weakens a key governance check.

The question is not whether dual-class is always good or bad. It is whether the decision-making advantage at IPO outweighs the governance risk as the company matures, the founder's equity stake drifts lower (through issuance or estate transfers), and the wedge between economic ownership and voting control widens.

How It Works

Classes and conversion. Typical structures define a high-vote class (often Class B) that converts to a one-vote-per-share class automatically on transfer outside the founder group. This keeps control concentrated while letting the founder sell shares into the market through the low-vote class.

Sunset provisions. A time-based sunset forces conversion to one-vote-per-share after a fixed number of years (commonly 7 to 15 years from IPO). An event-based sunset forces conversion on the death, retirement, or departure of the founder, or when the founder's economic ownership falls below a threshold (often 5 to 10 percent). Many dual-class IPOs since 2018 have included one of these forms after investor pressure.

Index eligibility.

• S&P Dow Jones Indices (effective July 31, 2017) stopped adding new multi-class companies to the S&P Composite 1500, which includes the S&P 500, MidCap 400, and SmallCap 600. Companies already in those indices were grandfathered.
• FTSE Russell (effective 2017) requires at least 5 percent of voting rights to be in public hands for new index additions, with grandfathering for existing constituents.
• MSCI consulted on and adopted adjustments to reflect voting rights in free-float calculations.

Exchange listing. Both NYSE and Nasdaq permit dual-class listings at IPO. A post-IPO recapitalisation that creates a new high-vote class for existing shareholders, however, triggers a one-share-one-vote listing rule and is generally not permitted on either exchange.

Worked Example

A founder-led technology company, ExampleCo, goes public with:

• 150 million Class A shares sold to the public at 1 vote each.
• 50 million Class B shares held by the founder at 10 votes each.

Total voting power at IPO:

Public voting power = 150,000,000 / (150,000,000 + 500,000,000) = 23.1%
Founder voting power = 500,000,000 / 650,000,000 = 76.9%
Founder economic ownership = 50,000,000 / 200,000,000 = 25.0%

The founder owns 25 percent economically but controls 77 percent of the vote. Over the next decade, the founder sells 30 million Class B shares, which convert to Class A on sale. New economic and voting stakes:

Founder economic ownership = 20,000,000 / 200,000,000 = 10.0%
Founder voting power = 200,000,000 / 350,000,000 = 57.1%

The wedge between economic ownership (10 percent) and voting power (57 percent) has widened sharply. This is the structural concern the Council of Institutional Investors and other governance groups have flagged: small-minority controllers with outsized votes, and no sunset to reset the balance.

Common Mistakes

1. Assuming dual-class always destroys value. Empirical studies are mixed. Control allows long-horizon bets that short-term market pressure might have killed, and some of the most successful issuers of the last two decades are dual-class. The effect is usually conditional on founder quality, sunset design, and board independence.

2. Ignoring sunset design. A dual-class issuer with a robust time-based sunset is a very different investment from one with perpetual high-vote stock. Read the certificate of incorporation rather than assuming all structures are the same.

3. Overlooking index-eligibility consequences. A company that cannot enter the S&P 500 loses passive-flow demand. That affects price discovery, the cost of equity, and the acquirer pool. This is a mechanical, not sentimental, consequence.

4. Confusing economic ownership with voting power. In governance disputes, voting power is what matters. A 10 percent economic holder with 57 percent of votes can block any proposal that requires supermajority consent.

5. Assuming non-voting stock is the same as low-vote stock. A zero-vote class cannot participate in any director election, any merger vote, or any bylaw change. That is a fundamentally different instrument, not just a weaker version of common stock.

Frequently Asked Questions

Q: What are dual-class shares in simple terms? Dual-class shares split a company's equity into two (or more) classes with different voting rights. The founder or insider class typically carries 10 votes per share while the public class carries one. This lets founders raise capital from public markets while keeping voting control even after selling down most of their economic stake.

Q: How do dual-class structures affect investment decisions? Public shareholders in a dual-class company cannot vote out management, block a self-serving transaction, or discipline the board through elections. That governance discount widens over time as the founder's economic stake falls while voting power stays high. The S&P 500 exclusion also caps passive-fund demand at IPO, affecting long-term price discovery.

Q: What is a real-world example of dual-class governance math? ExampleCo's founder holds 50M Class B shares at 10 votes each and the public holds 150M Class A at 1 vote each. The founder controls 77% of the vote with 25% economics. After selling 30M Class B shares (which convert to Class A on sale), the founder retains 57% of the vote on just 10% of the economics.

Q: How can investors evaluate a dual-class company before buying? Read the certificate of incorporation for the sunset clause: a time-based sunset of 7–15 years after IPO is far preferable to perpetual high-vote stock. Check whether the company is S&P 500-eligible. Model the vote trajectory as the founder's economic stake declines and assess whether board independence constrains insider decisions.

Q: How is a dual-class structure different from a poison pill? A dual-class structure is baked into the capital structure at or before IPO and gives founders permanent (or near-permanent) voting dominance. A poison pill is a temporary rights plan the board adopts to block a hostile acquirer; it sunsets and can be redeemed. Both concentrate board power, but through entirely different mechanisms and with very different governance permanence.

Sources

1. SEC. "Investor Bulletin: Dual Class and Multi-Class Stock Structures." https://www.sec.gov/oiea/investor-alerts-and-bulletins/investor-bulletin-dual-class-and-multi-class-stock-structures
2. S&P Dow Jones Indices. "S&P U.S. Indices Multi-Class Share Policy (July 31, 2017)." https://www.spglobal.com/spdji/en/documents/indexnews/announcements/20170731-1497428.pdf
3. Council of Institutional Investors. "Dual-Class Stock." https://www.cii.org/dualclass_stock
4. Harvard Law School Forum on Corporate Governance. "The Perils of Small-Minority Controllers." https://corpgov.law.harvard.edu/2019/02/26/the-perils-of-small-minority-controllers/

Disclaimer

This article is educational content only and is not financial advice. Nothing here is a recommendation to buy, sell, or hold any security. Consult a licensed advisor before making investment decisions.