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Kalshi Sports Prediction Market Class Action

Verified September 19, 2026Found via the federal court docketHow ClaimWatch verifies cases

Still being litigated: the claims below are allegations, not findings, and there is no settlement, claim form or payout yet.

Where this case stands

In litigation

The case has been filed and is being fought in court. There is no settlement, no claim form and no payout yet; many class actions are dismissed or never certified.

Pending in the District Court, S.D. New York (No. 1:25-cv-08585).

  1. October 16, 2025
    Case filed

What happened

A proposed class action alleges violations related to Kalshi's sports prediction market operations. The case involves ordinary users who participated in the platform, apparently raising concerns about regulatory compliance or unfair trading practices in the prediction market context.

Do you qualify?

No settlement exists yet, so there is nothing to file and no class definition to check. If the case settles, the settlement will define exactly who qualifies — watch this case and we'll let you know.

How to file

There is no claim to file yet. If this case reaches a settlement, a claim process will open — usually with an official settlement website and a filing deadline.

Common questions

Can I file a claim in the Kalshi Sports Prediction Market Class Action case?
No. The case is still being litigated — there is no settlement, no claim form, and no payout. It was filed October 16, 2025 in the District Court, S.D. New York (No. 1:25-cv-08585).What a class action lawsuit is →
Who are the attorneys in the Kalshi Sports Prediction Market Class Action?
For the plaintiffs: David Stellings (Lieff Cabraser Heimann & Bernstein, LLP); Trenton H. Mann (Beasley Allen et al); Yeremey O. Krivoshey (Smith Krivoshey, PC); Wilson Daniel Miles , III (Beasley, Allen, Crow, Methvin, Portis & Miles, P.C.). For Kalshi: John Mark White (White Arnold & Dowd P.C.); Joshua Brooks Sterling (Milbank LLP); Matthew Joseph Laroche (Milbank LLP); Sean Miles Murphy (Milbank LLP). From the public court docket.

Who's involved

Plaintiffs

  • Abraham Kassin
  • John Laxson
  • Bruce Schlegel
  • Jaxson O'Brien
  • William Paul
  • Anthony Huntsman
  • Yvonne Diaz
  • Jason Procaccini

+ 27 more

Defendants

  • SUSQUEHANNA INTERNATIONAL GROUP LLP(Consolidated Defendant)
  • Susquehanna Government Products, LLP(Consolidated Defendant)
  • Does 1-20
  • Kalshi Trading LLC
  • Kalshi Klear Inc.
  • Kalshi Klear LLC
  • Kalshi Inc.
  • KalshiEX LLC

Counsel for plaintiffs

Counsel for defendants

Other cases these firms appear in

From the public court docket, contact details as filed; not an endorsement.

Guides:What is a class action lawsuit?How class membership worksYour options as a class member

Summarised from public settlement documents; confirm terms on the official settlement website. ClaimWatch is not a law firm, and filing a claim is free.

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