Missouri Sues Proxy Advisor ISS Over Shareholder Votes
Attorney General Catherine Hanaway alleges Institutional Shareholder Services steers voting toward ESG priorities over financial returns.
Updated on Nov. 12, 2026 in Public Companies
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Missouri Attorney General Catherine Hanaway filed a lawsuit Tuesday against Institutional Shareholder Services (ISS), a proxy advisory firm. The suit alleges ISS steers investors toward left-wing ESG voting choices instead of prioritizing shareholders' financial interests, and ISS denied the allegations.
Why it matters
Universities, large investment vehicles and retirement systems rely on ISS to guide how they vote their holdings, including Missouri's Public School and Education Employee Retirement System. Hanaway argues that if ISS advances ideological agendas over financial returns, it puts Missourians' investments at risk.
The lawsuit was filed on November 10, 2026, and no corporate financial or operational metrics were disclosed in the filing or in ISS's response. The extraction contains no revenue, client-count or voting-volume figures for ISS.
The players
Catherine Hanaway
Catherine Hanaway is the Attorney General of Missouri, the state's chief legal officer, who filed the lawsuit against ISS on behalf of the state.
Institutional Shareholder Services (ISS)
Institutional Shareholder Services is a major proxy advisory firm whose voting recommendations are relied on by universities, large investment vehicles and retirement systems.
The details
Hanaway alleges ISS has quietly used its influence over corporate governance to steer institutional shareholders toward an ESG worldview. ISS spokesperson denied the allegations in a statement to Just the News, saying the firm is confident in its compliance with applicable laws.
Timeline
November 10, 2026: Hanaway filed the lawsuit against ISS on a Tuesday.
Market Landscape
State attorneys general have increasingly challenged ESG-oriented investing practices, and this suit moves that pressure upstream to the proxy advisers that shape how institutional shareholders vote. The case places ISS at the center of a broader dispute over whether proxy advice should prioritize financial returns or environmental and social goals.
Missourians whose retirement savings are managed by the Public School and Education Employee Retirement System may have their holdings voted according to ISS guidance, so the outcome of this suit could affect how those investments are voted. The lawsuit is still in its early stage, and no change to current voting practices has been reported.
The takeaway
Proxy advisory firms wield significant influence over how institutional money is voted, so their recommendations deserve scrutiny from the investors who rely on them. Investors and retirement savers can review how their plans direct proxy votes to understand whose priorities are shaping those decisions.
Further reading
For more on how shareholder voting shapes corporate decisions, explore Public Companies coverage.
Source note: This article includes information reported by Just The News.
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