A new complaint says trackers embedded on kalshi.com sent users' wagers and event selections to LinkedIn and Google without consent. Anyone who placed a bet on the site could fall within the proposed class — but there is nothing to claim yet.
Allegations Only · No Settlement Yet
This article describes a class action complaint. The statements below are unproven allegations. Kalshi, Inc. has not been found liable, there is no certified class, and there is nothing to claim at this time. This page is general information, not legal advice.
What Is the Kalshi Privacy Lawsuit About?
Kalshi, the prediction-market platform where users trade event contracts on political races, sports, crypto prices, and more, is facing a proposed class action alleging that its website quietly let third-party trackers intercept and disclose users' activity. The case is James v. Kalshi, Inc., No. 3:26-cv-03556-RSH-DDL, in the U.S. District Court for the Southern District of California. The named plaintiff, a Chula Vista, California resident, filed the complaint on June 12, 2026, through the law firm Bursor & Fisher.According to the complaint, Kalshi embedded two tracking tools on kalshi.com — the LinkedIn Insight Tag and Google Analytics — that contemporaneously duplicated users' communications with the site and transmitted them to LinkedIn and Google. The complaint alleges the intercepted data included the detailed URLs showing which events users selected to wager on, "click" events when users pressed buy and placed a wager, hashed email addresses, and identifying cookie values that can be matched back to individual LinkedIn and Google profiles. The complaint alleges all of this happened without users' consent. None of the claims has been proven, and no court has ruled on the merits.
The Trackers Named in the Complaint
The complaint centers on two widely used marketing and analytics tools:• LinkedIn Insight Tag — a JavaScript snippet LinkedIn offers advertisers to optimize campaigns and retarget website visitors. The complaint alleges the tag runs as a first-party cookie so that browsers' third-party cookie blocking does not stop it, and that when a logged-in (or previously logged-in) LinkedIn member browses a site carrying the tag, HTTP requests containing the member's on-site actions are sent to LinkedIn along with identifying cookies — such as the "li_sugr" cookie, which LinkedIn's own documentation describes as used to make a probabilistic match of a user's identity.
• Google Analytics — Google's website measurement platform. The complaint alleges that when a user entered an email address on Kalshi's site, Google received a hashed version it could match to existing profiles, and that page selections were intercepted through detailed URLs. It also points to Google's reporting identifiers — User-ID, user-provided data, device ID, and Google Signals for signed-in Google account holders — as the mechanisms tying the data back to individuals.
LinkedIn and Google are described as the recipients of the data; neither is named as a defendant. The allegations about how these tools operated on kalshi.com remain unproven.
What the Named Plaintiff Alleges Happened
The plaintiff says he placed numerous bets on Kalshi's website in 2026, as recently as March 2026, entering personal information and bet details using the same device and browser he uses for his LinkedIn account. He alleges that Kalshi disclosed his personally identifiable information to Google and LinkedIn without his consent, and that neither Kalshi nor the tracking companies obtained permission before his betting activity was shared. When people provide a dollar amount and place a wager on a specific outcome, the complaint argues, they reasonably expect that financial activity to stay between them and the platform.What Laws Does the Complaint Invoke?
The complaint asserts three causes of action:• Federal Electronic Communications Privacy Act (ECPA / Wiretap Act), 18 U.S.C. § 2511 — alleging Kalshi intentionally intercepted, disclosed, and used the contents of users' electronic communications by embedding the LinkedIn and Google tracking code, and that the "party exception" does not apply because the interceptions were allegedly for the purpose of committing tortious or unlawful acts. Plaintiff seeks statutory damages under 18 U.S.C. § 2520 of $10,000 or $100 per day per violation.
• California Invasion of Privacy Act, Penal Code § 631(a) — the wiretapping provision, alleging LinkedIn and Google read users' communications in transit without all-party consent and that Kalshi aided and enabled the interception. CIPA provides statutory damages of $5,000 per violation.
• California Invasion of Privacy Act, Penal Code § 632 — the eavesdropping provision, alleging the trackers functioned as recording devices that captured confidential communications.
Courts have applied CIPA to internet communications, but whether these statutes reach the conduct alleged here — and whether analytics trackers count as third-party eavesdroppers — is exactly what the litigation will test.
Who Could Be Affected?
The complaint proposes a nationwide class of all natural persons in the United States who, during the class period, made a page selection or placed a wager on Kalshi's website, plus a California subclass of California residents who did the same. The complaint says the classes are believed to number in the thousands. Exact class definitions and the applicable time period would be decided later if the case advances past the pleading stage.How This Differs From the Other Kalshi Lawsuits
Kalshi has faced a wave of litigation in 2026, but the earlier cases raise very different claims. The suits covered in our Kalshi class action lawsuits overview and our Kalshi Kentucky gambling-loss class action article allege the platform operated as unlicensed gambling and seek recovery of user losses. Kalshi has also gone on offense against state regulators, including the Kalshi v. Illinois SB 3019 preemption suit. James v. Kalshi is different: it is a privacy case about the website itself, alleging that betting activity was disclosed to advertising platforms. All of these cases remain pending, and the allegations in all of them remain unproven.What Are Plaintiffs Seeking?
The complaint seeks class certification, statutory damages under the ECPA and CIPA, punitive damages where warranted, prejudgment interest, injunctive relief stopping the challenged practices, and attorneys' fees and costs. A jury trial is demanded. Because the case is unresolved, no money is available now and any recovery is uncertain unless and until plaintiffs prevail or a settlement is reached.What Should You Do Now?
There is nothing to file at this stage — no settlement and no claim form exist. If you have used Kalshi and are following the case, you can keep your own records (account statements and the dates you used the site). If you want legal advice, consult a privacy or consumer-protection attorney licensed in your state; you can find one through your state bar association's lawyer referral service. OpenClassActions.com is a consumer news site, not a law firm, and does not provide legal advice or process claims.Pixel- and tag-based wiretap suits are a fast-growing corner of consumer privacy litigation. For related examples, see our coverage of the JetBlue website tracking class action, the Fender website cookie-tracking class action, and the Otter.ai recording wiretap class action.
Read the Complaint
You can read the full class action complaint below:James v. Kalshi, Inc. — Class Action Complaint (PDF, June 12, 2026)
Frequently Asked Questions
What is the Kalshi privacy lawsuit about?
A proposed class action, James v. Kalshi, Inc. in the Southern District of California, alleges that Kalshi embedded the LinkedIn Insight Tag and Google Analytics on kalshi.com and that those tools intercepted and disclosed users' activity — including the event contracts they selected and the wagers they placed — to LinkedIn and Google without consent, in violation of the federal Wiretap Act (ECPA) and the California Invasion of Privacy Act (CIPA). These are unproven allegations; Kalshi has not been found liable.
Is there a Kalshi settlement or claim form yet?
No. The case is at the complaint stage. There is no certified class, no settlement, and no claim form. The complaint was filed June 12, 2026, and nothing can be claimed at this time.
Who could be affected by the Kalshi tracking lawsuit?
The complaint proposes a nationwide class of all natural persons in the United States who made a page selection or placed a wager on kalshi.com during the class period, plus a California subclass of California residents who did the same. Exact class definitions would be decided later if the case advances.
What laws does the Kalshi complaint invoke?
Three causes of action: the federal Electronic Communications Privacy Act (Wiretap Act), 18 U.S.C. § 2511, and California Invasion of Privacy Act sections 631(a) and 632. The ECPA claim seeks statutory damages under 18 U.S.C. § 2520, and the CIPA claims seek statutory damages of $5,000 per violation under Penal Code § 637.2. Whether these statutes apply to the conduct alleged is what the litigation will test.
Is this the same as the other Kalshi class actions?
No. This is a separate case from the gambling-loss suits. Earlier 2026 cases against Kalshi allege it operated as an unlicensed gambling platform and seek recovery of user losses. James v. Kalshi is a privacy case about website tracking — it alleges Kalshi disclosed users' betting activity to LinkedIn and Google through embedded trackers. All of these cases remain unproven allegations.
Sources
• James v. Kalshi, Inc., No. 3:26-cv-03556-RSH-DDL (S.D. Cal.) — Class Action Complaint, filed June 12, 2026• LinkedIn, cookie table (li_sugr and lms_ads cookies) — LinkedIn (cited in the complaint)
• Google, [GA4] Reporting identities — Google Analytics Help (cited in the complaint)
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