The just completed IPO of Snap Inc. has received enormous buzz and plenty of press coverage, mostly about its eye-popping valuation and offering proceeds, the big winners among the founders and early investors and the millennials who bought shares. But not nearly as much attention has been given to Snap’s tri-class capital structure and the nature of the shares that were actually issued in the IPO: the shares of Class A Common Stock sold in the IPO are non-voting. By its own admission, Snap may have pulled off the first ever IPO of non-voting stock.

Snap’s capital now consists of the non-voting Class A shares held by public investors, Class B shares with one vote per share held by early round investors, employees and directors and Class C shares with ten votes per share held by the founders. As a result of the Class C common stock that they hold, co-founders Evan Spiegel and Robert Murphy will be able to exercise voting rights with respect to an aggregate of 215,887,848 shares, representing approximately 88.5% of the voting power immediately following the offering. Consequently, Spiegel and Murphy, and potentially either one of them alone (see below), have the ability to control the outcome of all matters submitted to stockholders for approval, including election, removal, and replacement of directors and any merger or sale of all or substantially all of the assets.

Multiple class structures are not unusual, and several high profile companies went public with them in recent years. What’s unusual here is that whereas the shares sold in those other multiple class structure IPOs had at least some voting rights (typically, one vote per share vs. 10 for the founder class), Snap’s public offering shares have no voting rights. Technically, Delaware law would permit holders of Snap’s Class A non-voting stock nevertheless to vote with one vote per share on any proposal to amend the certificate of incorporation in any way that would adversely affect the holders of the Class A. For example, if a proposed amendment provided for the Class A to rank junior to the Class B and Class C with respect to dividends or acquisition proceeds, a Class A vote would be required and the holders of a majority of Class A shares could defeat that amendment. Such a proposal would be extremely rare, however, and the Class A holders would have no say in the much more typical matters of board elections and any proposed sale of the company.

Multiple share classes are especially useful to public technology companies because they give them the freedom to innovate without the constraints of “short termism” and also serve as a deterrence to takeover bids because of activists’ inability to manipulate the voting machinery for election of directors.

Snap’s Class A common stock will be its only class registered under Section 12 of the Securities Exchange Act, and because the Class A is non-voting, Snap will not be required to file proxy statements except for a rare case where a vote of the Class A common stock is required (see above). Nevertheless, Snap indicated in its S-1 that it will provide Class A holders any information that it provides voluntarily to Class B and Class C holders.

What makes Snap’s structure even more unusual is survivability and portability.  According to Snap’s S-1, If Spiegel’s or Murphy’s employment is terminated (which, because of their control, could only happen if they turn on each other), they will continue to have the ability to exercise the same significant voting power and continue to control the outcome of all matters submitted to stockholders for approval. A founder’s Class C shares will automatically convert into Class B shares, on a one-for-one basis, nine months following such founder’s death or on the date on which the number of outstanding Class C shares held by such holder represents less than 30% of the Class C (or 32,383,178 shares) held by such holder at the time of the IPO. Facebook, on the other hand, amended its certificate of incorporation so that Mark Zuckerberg’s majority voting control is good only while he is an executive at the company.

Snap’s capital structure has drawn some criticism. In a New York Times piece, Cal Berkley law professor Steven Davidoff Solomon referred to Snap’s IPO as “the most stockholder-unfriendly governance in an initial public offering, ever.” In the Harvard Law School Forum on Corporate Governance and Financial Regulation, Rob Kalb and Rob Yates of Institutional Stockholder Services cited a 2016 ISS study that showed that controlled companies had weaker governance standards and tended to underperform “with respect to total stockholder returns, revenue growth, return on equity, and dividend payout ratios.” And the Council of Institutional Investors sent a letter to Snap’s co-founders objecting to the capital structure and urging them to adopt a single class structure. While acknowledging that similar emerging companies with dynamic leadership and promising products have successfully raised capital despite having dual class structures, Snap’s structure is unusual in that the investors would have no voting rights and dual class company performance has been mixed at best.

When Google, Facebook and Under Armour went public, they each did so with a dual-class share structure that at least afforded public stockholders one vote per share. Nevertheless, each company subsequently requested stockholder approval for the issuance of a third class of non-voting shares. In each case, the purpose of creating a new non-voting class was to maintain founder voting control while simultaneously providing insider liquidity.

Despite the overall positive outcomes achieved by Google and Facebook for their stockholders, going public as a controlled company with an unequal-voting-rights structure is no guaranty for financial success. Groupon, Zynga and GoPro each went public with a dual-class structure, received poor ISS corporate governance scores indicating the highest levels of governance risk, and the share price of all three dropped precipitously since their respective IPOs.

Adding salt to the corporate governance wound, Snap is taking advantage of emerging growth company status under the JOBS Act, meaning that it is not required to comply with the auditor attestation requirements under Sarbanes-Oxley and the reduced executive compensation disclosure requirements and may delay adoption of new public-company accounting principles.

In the final analysis, investors will need to decide which Mark the Snap founders better resemble, Facebook’s Zuckerberg or Zynga’s Pincus. And looking beyond Snap, it remains to be seen whether other emerging companies adopt the Snap IPO playbook by launching IPOs with multiple-class structures that preserve founder control and give public stockholders little or no governance voice.