A federal court has denied a shareholder attempt to force Chubb Limited to assess using subrogation to recover climate-related losses.
The US District Court for the District of Columbia issued the ruling on March 31, 2026, denying a preliminary injunction sought by As You Sow, a California-based nonprofit shareholder advocacy organization. The decision, however, did not end the case - the court allowed it to continue, setting the stage for a potentially significant fight over how far shareholders can push insurers on climate strategy.
The dispute began in November 2025, when As You Sow submitted a proposal to Chubb for inclusion in the insurer's proxy materials ahead of its May 2026 annual shareholder meeting. The proposal asked Chubb to commission a third-party report assessing if and how pursuing subrogation claims for climate-related losses would benefit the company and its insureds. Subrogation, for those outside the claims world, is the process by which an insurer steps into the shoes of its insured to recover losses from a responsible third party – a routine tool in the property and casualty space.
Chubb said no. The publicly traded Swiss insurer told the SEC that the proposal dealt with its ordinary business operations and amounted to an attempt to micromanage the company. The SEC, which had already announced it would not be substantively reviewing shareholder proposals during the 2025-2026 proxy season due to resource and timing considerations, issued a letter stating it would not object to the exclusion.
As You Sow responded by filing suit on March 3, 2026, and seeking emergency relief to get the proposal onto the ballot before Chubb finalized its proxy materials in early April.
The court was not persuaded. At the heart of the ruling was a question that sounds simple but has long frustrated courts and companies alike: when does a shareholder proposal cross the line from an insurer's day-to-day operations into a broader policy issue that shareholders have a right to weigh in on?
The court found that while As You Sow's proposal clearly touched on climate change – a topic the court acknowledged as an urgent global crisis – it did not demonstrate that the proposal was fundamentally about climate policy. Instead, the court found that the proposal, on its face, dealt with Chubb's subrogation strategy, which is part of how the company runs its business every day. A Chubb representative explained that the insurer already pursues subrogation on a case-by-case basis where it makes legal and business sense, and decides whether to act after a particular loss occurs.
As You Sow tried to argue that its proposal transcended routine business because climate change poses a severe and mounting threat to Chubb's overall business model. The court recognized the weight of that concern but found that simply connecting a proposal to climate change is not enough – the proposal has to be focused on the policy issue in a way that rises above the operational details. On the current record, the court concluded that As You Sow had not cleared that bar.
The organization also suggested that because the proposal only called for a report – rather than directing Chubb to actually change its subrogation practices – it should be treated differently. The court saw some logic in that argument but noted that SEC guidance from 1983 specifically rejected that reasoning, stating that what matters is the subject matter of the report, not the fact that a report is being requested.
Adding a procedural wrinkle, the court found that As You Sow had not properly served Chubb with the lawsuit. The organization had mailed the summons and complaint to Chubb Group Holdings Inc., a U.S.-based subsidiary holding company owned by Chubb Limited, rather than to Chubb Limited itself. As You Sow conceded the error at the hearing but said the process of serving Chubb through international channels under the Hague Convention was already underway. The court gave the organization 120 days to get it done.
Despite denying the injunction, the court refused to throw out the case entirely. Chubb had asked for dismissal, but the court found the legal landscape too unsettled to make a final call at this stage. The caselaw around the ordinary business exclusion is thin, the court noted, and several significant interpretive questions remain unresolved – including how much weight courts should give to decades-old SEC guidance on the topic. The court indicated that fuller briefing could change the picture.
The case now enters a new phase. After As You Sow completes proper service, Chubb can refile its motion to dismiss, and both sides will have the opportunity to dig deeper into the legal questions the court flagged but left unanswered.
For the insurance industry, the case is worth watching. It sits at the intersection of climate risk, shareholder activism, and insurer governance – three forces that are increasingly converging across the property and casualty sector. Whether subrogation could serve as a viable tool for recovering climate-related losses from responsible parties is a question that goes well beyond one company's proxy ballot.
