Oura Targets $16 Billion IPO Valuation for September, Days After Sleep-Tracking Lawsuit

Oura Health Oy, the Finnish-American maker of the smart ring, is reportedly working toward a U.S. IPO that could raise as much as $3 billion and value the company north of $16 billion, according to Bloomberg, which cited people familiar with the matter. The listing could happen as early as September 2026, though the people cautioned terms are still being worked out and could change.

Oura closed a $875 million Series E round last September at a $10.9 billion valuation, backed by Fidelity, ICONIQ, Whale Rock and Atreides, according to TechCrunch. A jump to $16 billion in less than a year represents a roughly 45-47% increase, depending on which baseline figure you use, per BigGo Finance and WEEX Crypto News.

Existing investors are expected to sell a significant chunk of shares in the offering itself, according to Bloomberg's reporting as relayed by Yahoo Finance. This isn't purely a fundraising event for Oura. It's also a cash-out opportunity for early backers like Dexcom, The Chernin Group, Forerunner Ventures, Coatue and Temasek, according to TechCrunch.

Oura confidentially filed IPO paperwork in May 2026. The underwriting syndicate lined up so far includes Goldman Sachs, Morgan Stanley, JPMorgan Chase, Allen & Co. and Jefferies Financial Group, according to Yahoo Finance and BigGo Finance.

The Growth Numbers Behind the Price Tag

Oura says it pulled in $500 million in revenue in 2024 and roughly $1 billion in 2025, with a projection of close to $2 billion for 2026, according to TechCrunch. BigGo Finance and WEEX Crypto News cite a slightly different 2026 revenue projection of $1.5 billion, which would still be triple the 2024 figure. The company's actual S-1 filing, once public, will settle which numbers are accurate.

On units, Oura CEO Tom Hale has said the company sold 5.5 million rings cumulatively as of September 2025, up from 2.5 million as of June 2024, according to BigGo Finance. That's roughly a doubling of lifetime unit sales in 15 months.

A Crowded Ring Finger

Samsung launched the Galaxy Ring two years ago. Apple is reportedly developing its own AI-driven wearables, according to Yahoo Finance. Whoop, once a niche tool for elite athletes, has pushed into hormone tracking and blood-panel testing for perimenopause and thyroid health, hitting a $10 billion valuation in March, according to TechCrunch and WEEX Crypto News.

Oura has followed a similar trajectory, moving from a favorite of Silicon Valley "biohacker" executives toward a mainstream sleep-and-recovery brand.

The Lawsuit Nobody Should Skip

On August 20, the Clarkson Law Firm filed a proposed class action against Oura in San Francisco federal court, according to WEEX Crypto News. The complaint alleges Oura misled consumers about the accuracy of its sleep-tracking claims, arguing the ring cannot actually determine specific sleep stages from physiological signals alone and instead relies on AI-generated estimates that WEEX Crypto News describes the complaint as comparing to "flipping a coin." The suit contends that detecting sleep stages with clinical accuracy requires electrodes and eye sensors typically only available in a hospital sleep lab, according to TechCrunch.

Oura pushed back. A spokesperson told TechCrunch that the company plans to defend against the claims in court, and that while "Oura Ring is not a medical device or a substitute for a clinical sleep study," its sleep staging "has been validated and compared favorably in multiple studies against polysomnography, the gold standard." The spokesperson added that "multiple third-party, independent studies support our claims of accuracy."

The lawsuit's allegations are unproven claims made in a filing, not a court finding. Whether Oura's sleep-stage detection meets the standard consumers reasonably expect for a $300-plus wearable is now a question for a judge.

What's Actually Unresolved

Bloomberg's sourcing on the IPO timeline and valuation comes from unnamed people familiar with the matter, and multiple outlets, including Yahoo Finance, ua.news, KuCoin and Weex, are all relaying that same Bloomberg report rather than independently confirming it. No S-1 has been made public as of this writing, so the specific revenue figures, share structure and final valuation remain estimates until Oura files.

Whether a $16 billion price tag holds up will depend on how investors weigh Oura's growth against a pending lawsuit challenging its core accuracy claims, and against deep-pocketed competitors like Apple and Samsung entering the same market. The company's confidential S-1, once unsealed, will be the first real test of whether the numbers back up the valuation.