Brown v. Kalshi Inc 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, W.D. Washington (No. 2:26-cv-01426).
- April 27, 2026Case filed
What happened
A proposed class action alleges fraud by Kalshi Inc, apparently a financial services or trading platform. Based solely on the docket caption and nature-of-suit code (370 Other Fraud), the complaint appears to claim that the defendant engaged in fraudulent conduct affecting users or customers, though the specific allegations cannot be determined from the limited docket metadata available.
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 Brown v. Kalshi Inc Class Action case?
- No. The case is still being litigated — there is no settlement, no claim form, and no payout. It was filed April 27, 2026 in the District Court, W.D. Washington (No. 2:26-cv-01426).What a class action lawsuit is →
- Who are the attorneys in the Brown v. Kalshi Inc Class Action?
- For the plaintiffs: Vivek Kothari (KOTHARI LAW); Jonathan Grunberg (WADE, GRUNBERG & WILSON LLC); Natalya Maze (MAZE LAW GROUP PLLC). For Kalshi Inc: Matthew Steven Hosen (QUINN EMANUEL URQUHART & SULLIVAN LLP (WA)); Rachel Frank Quinton (QUINN EMANUEL URQUHART & SULLIVAN LLP (DC)); Nicolas G. Keller (QUINN EMANUEL URQUHART & SULLIVAN LLP (NY)); John Wall Baumann (QUINN EMANUEL URQUHART & SULLIVAN LLP (LA)). From the public court docket.
Who's involved
Plaintiffs
- Nicholas Brown
Defendants
- Kalshi Inc
Counsel for plaintiffs
- Vivek KothariKOTHARI LAWRepresents Nicholas Brown4 tracked casesvivek@kothari.law · (503) 567-6735
- Jonathan GrunbergWADE, GRUNBERG & WILSON LLCRepresents Nicholas Brownjgrunberg@wgwlawfirm.com · (404) 445-8363
- Natalya MazeMAZE LAW GROUP PLLCRepresents Nicholas Brownnpm@mazelawgroup.com · (206) 355-6314
Counsel for defendants
- Matthew Steven HosenQUINN EMANUEL URQUHART & SULLIVAN LLP (WA)Represents Kalshi Inc3 tracked casesmatthosen@quinnemanuel.com · (206) 905-7000
- Rachel Frank QuintonQUINN EMANUEL URQUHART & SULLIVAN LLP (DC)Represents Kalshi Incrachelfrank@quinnemanuel.com · (202) 538-8265
- Nicolas G. KellerQUINN EMANUEL URQUHART & SULLIVAN LLP (NY)Represents Kalshi Incnicolaskeller@quinnemanuel.com · (212) 849-7000
- John Wall BaumannQUINN EMANUEL URQUHART & SULLIVAN LLP (LA)Represents Kalshi Inc3 tracked casesjackbaumann@quinnemanuel.com · (213) 443-3169
- Avi PerryQUINN EMANUEL URQUHART & SULLIVAN LLP (DC)Represents Kalshi Incaviperry@quinnemanuel.com · (202) 538-8265
Other cases these firms appear in
- Ashley Furniture Website Tracking Class Action · Kothari Law
- RugsUSA Civil Rights Class Action · Kothari Law
- RugsUSA Consumer Class Action · Kothari Law
- Doehr v. Lucky Strike Entertainment - Antitrust Class Action · QUINN EMANUEL URQUHART & SULLIVAN LLP (WA)
- ZoomInfo Data Privacy Class Action · QUINN EMANUEL URQUHART & SULLIVAN LLP (WA)
From the public court docket, contact details as filed; not an endorsement.
In the news
- New York sues Polymarket over unlicensed gambling operation just as it did rival KalshiTechSpot · September 26, 2026
- Inside Kalshi CEO Tarek Mansour’s testy relationship with Indian casinos — and how it could pose an existential threat: ‘Lying little twerp’New York Post · September 25, 2026
- New York sues Polymarket over allegations of illegal gambling operationsAl Jazeera English · September 24, 2026
- New York Sues Polymarket For Running ‘Illegal Gambling Operation,’ Two Months After Making Same Charges Against KalshiBroBible · September 24, 2026
Headlines via NewsAPI.
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.
More finance settlements
View all →Brimmer v. City of Overland Special Deterrent Fees Settlement
Up to $80
Non-Bank ATM Surcharge Settlement
Settlement Fund will be distributed proportionally (pro rata) to each valid claimant after deductions for attorneys' fees (up to 30%), litigation costs, notice and administration costs, and service awards (up to $17,500 per class representative)