Will Ahmed and WHOOP: From 143 Investor Rejections to a $10.1 Billion Health Empire

A week. That is how close Will Ahmed’s company came to filing for bankruptcy in 2018, roughly six years after he started building it as a 22-year-old Harvard senior with no prior company, no full-time work experience, and no formal training in hardware engineering, computer science, or medicine — the three disciplines his business sat directly at the intersection of.

Today, that company, WHOOP, is valued at $10.1 billion. It counts Cristiano Ronaldo, LeBron James, and Rory McIlroy not just as users but as actual investors. It has formal partnerships with Formula 1’s Ferrari team and the Ryder Cup. And its founder was named to TIME’s inaugural TIME100 Sports list in 2026, recognized among the 100 most influential figures shaping the global sports landscape.

The distance between those two facts — a company a week from bankruptcy, and a company worth ten billion dollars eight years later — is the story of one of the more instructive founder journeys in recent technology history. It is also a story that very nearly didn’t happen, not because the underlying idea was flawed, but because its founder was, by his own account, on the edge of a complete personal breakdown at the moment the business needed him most.

The Original Obsession: A Body That Felt Like It Was Betraying Him

WHOOP’s origin story begins not with a business plan but with a deeply personal frustration. Growing up on Long Island, New York, Will Ahmed was consumed by two interests from an early age: sports and technology. He played roughly ten different sports as a child before settling on squash, a discipline he was talented enough at to eventually captain the men’s varsity squash team at Harvard University.

But Ahmed’s athletic career was repeatedly disrupted by a pattern he couldn’t make sense of. He would train consistently, gradually building fitness and strength, only to suddenly and inexplicably crash — feeling completely run down with no clear explanation for why. “It really felt like the ultimate betrayal,” Ahmed has said of the experience, describing how personal the frustration felt at the time.

As he researched the phenomenon — what exercise scientists now broadly understand as overtraining syndrome, tied closely to recovery and sleep quality — Ahmed became convinced the problem extended well beyond competitive athletes. It struck him as a genuine paradox of modern life: society had built sophisticated systems to forecast tomorrow’s weather, monitor a car’s engine performance in real time, and run diagnostics on a personal computer, yet had almost no comparable real-time visibility into the human body — arguably the single most important system any person depends on.

That observation turned into a genuine obsession. As a 20-year-old college student, Ahmed began asking himself a deceptively simple question: how do you actually measure the human body? The question led him through hundreds of medical research papers and, before graduating, to writing his own academic paper titled “The Feedback Tool: Measuring Intensity, Recovery, and Sleep” — a foundational document for what would become WHOOP’s core product philosophy.

The Leap: Choosing the Unknown Over the Safe Path

In the fall of his senior year at Harvard, Ahmed made a decision that he has since described as one of the most frightening of his life. Rather than following the well-worn path many of his classmates were taking into finance or consulting, he told his parents he intended to start a company instead.

“I didn’t know what I had just signed up for,” he later reflected. The uncertainty was not abstract. He had never started a company. He had never held a full-time job of any kind, in any industry. And the company he intended to build sat at an unusually demanding intersection — hardware engineering, software development, data science, and medicine — none of which were fields in which he had any formal training or credibility. “I wasn’t a hardware engineer or computer scientist,” he has acknowledged plainly, a gap that fed considerable early skepticism from nearly everyone he pitched.

Working alongside co-founders John Capodilupo and Aurelian Nicolae out of the Harvard Innovation Labs, Ahmed wrote WHOOP’s first business plan and began developing early prototypes incorporating physiological sensors. The vision was deliberately different from anything on the market: not another step counter, but a wearable device capable of continuously tracking what was happening inside the body — sleep quality, physical strain, and recovery — and translating that raw physiological data into insights a regular person could actually understand and act on.

Hundreds of No’s

The market Ahmed was entering in 2012 offered little encouragement. The global wearables market at the time was selling roughly five million units a year — a genuinely small market by technology investment standards — and most existing products measured comparatively superficial metrics rather than anything that reflected what was actually happening physiologically inside a person’s body.

Investors were, accordingly, deeply skeptical. Ahmed estimates he received roughly 143 rejections from investors during the company’s early years — a number cited so consistently in retrospective coverage of WHOOP’s rise that it has become something of a signature statistic in the company’s own mythology. He funded the earliest stage of the business through an undisclosed amount of money from friends and family, while spending much of 2012 attempting, largely unsuccessfully, to attract larger institutional investors.

“Every day I just tried to pick myself up and put one foot in front of the other and keep building,” Ahmed has said of that period — a description that, while it might read as a simple motivational phrase in isolation, reflected the genuinely grinding day-to-day reality of building a hardware-and-medicine startup with no prior credibility, no large checks, and a product category most sophisticated investors did not yet believe in.

Compounding the skepticism was the competitive landscape. Nike had just launched its FuelBand activity tracker. The long-rumored Apple Watch was on the horizon, arriving roughly two years later. For nearly a decade, Ahmed faced a persistent narrative — from advisors, investors, and industry observers alike — suggesting WHOOP should abandon hardware entirely and instead build software and algorithms that could sit on top of devices made by companies with vastly more capital and manufacturing expertise. Ahmed’s view was that this advice missed something fundamental: no wearable technology that actually existed at the time could accurately measure the body’s underlying physiology. Building the algorithms was meaningless without first building hardware capable of capturing genuinely meaningful data. He ignored the advice and kept building.

The Athlete Strategy: A Counterintuitive Bet That Paid Off

Once Ahmed had a product he was no longer embarrassed by — a milestone that itself took years to reach, balanced against the perfectionist instinct to keep refining before launch — he made a second consequential and counterintuitive decision: rather than targeting the mass consumer market first, WHOOP would go after professional athletes.

The logic was twofold. On a practical level, professional athletes had genuine professional need for the product: their livelihoods depended in part on physical recovery, yet they had no reliable way to actually measure it. But Ahmed has been candid that the more important strategic rationale, in retrospect, was different: if elite athletes could be persuaded to genuinely love WHOOP, the company could build a performance-oriented brand that made health monitoring aspirational — even, in his words, “cool” — rather than clinical or mundane.

The strategy worked. LeBron James and Olympic swimmer Michael Phelps became early, high-profile users, and WHOOP began spreading through professional locker rooms by word of mouth, well before any significant paid marketing effort. That athlete-driven brand halo would prove to be one of the company’s most durable competitive assets in the years that followed.

The Breaking Point: When the Founder Almost Broke First

Behind the visible momentum of growing media coverage and athlete adoption, Ahmed was privately unraveling. By age 24, roughly two years into building the company, he had raised tens of millions of dollars and was leading a team of 30 to 40 employees — a level of operational and financial responsibility for which, by his own account, he was simply unprepared.

“I felt totally strung out,” Ahmed has said of this period. He was drinking excessive amounts of coffee and, separately, excessive amounts of alcohol, struggling to process the stress of a role he had been thrust into without any prior preparation. “I was just still a kid,” he has reflected, “and it felt like I was thrown into the seat of being a CEO and I didn’t really know how to keep up with that.”

The accumulated pressure eventually produced a genuine medical crisis: a panic attack severe enough that Ahmed checked himself into a hospital. That moment forced a realization that he has since described as one of the most important of his entire founder journey — that WHOOP’s ultimate success or failure might hinge not primarily on the underlying technology or business model, but on whether he personally could grow and evolve quickly enough to lead the company through its next phase. “If I didn’t keep growing and evolving with the pace of this business,” he has said, “it was going to be my fault the business failed, not the idea or the technology or anything else.”

In the aftermath, Ahmed began meditating regularly, restructured how he managed stress day to day, and became significantly more deliberate about developing the specific leadership capabilities WHOOP actually needed from him at each stage of its growth.

A Week From Bankruptcy

Personal growth alone, however, was not enough to fix a business model that was not yet working. By 2017 and into 2018, WHOOP had built genuine brand cachet — used by elite athletes, covered by media, technologically sophisticated — but had not yet built a financially sustainable company. Sales volumes remained well below what investors needed to see, and the company’s cash position deteriorated to the point that, in Ahmed’s own description, WHOOP came within a single week of filing for bankruptcy before a financing deal was finalized just in time.

This is the moment in WHOOP’s history that most directly explains the strategic pivot that followed.

The Pivot That Saved the Company: Killing the Hardware Sale

In May 2018, Ahmed made the decision that fundamentally restructured WHOOP’s entire business model. Rather than selling the wearable strap itself as a one-time hardware purchase — the conventional approach for nearly every fitness wearable on the market — WHOOP eliminated the upfront hardware price entirely. The strap would now be bundled for free with a recurring monthly membership.

The strategic insight behind the change was straightforward in retrospect, even though it required abandoning the dominant industry model to act on it: health monitoring, Ahmed reasoned, was not a single transaction but a continuous journey. Sustaining real value for members required relentless, ongoing investment in new software features and analytical capabilities — an investment pattern that aligned far more naturally with a subscription or membership structure than with a one-time hardware sale that generated no further revenue once the device shipped.

The membership model also fundamentally realigned WHOOP’s incentives with its members’ actual interests. “We care as much about keeping our existing members on WHOOP, as we do finding the next new members,” Ahmed has explained — a structural alignment that, by his account, keeps the company persistently focused on whether it is delivering genuine ongoing value, since that value is precisely what members are paying for on a continuing basis, rather than a one-time purchase decision that, once made, requires no further justification from the company.

The pivot worked. WHOOP’s subscriber base grew steadily following the change, then accelerated sharply during the COVID-19 pandemic, as consumer interest in personal health tracking surged broadly across the wearables category. The company has also noted a particularly memorable real-world validation of its technology during this period: PGA Tour golfer Nick Watney noticed an unusual respiratory rate spike on his WHOOP data and subsequently tested positive for COVID-19 despite having no symptoms at the time — a moment that helped demonstrate the practical, potentially life-relevant value of continuous physiological monitoring beyond athletic performance alone.

From Performance Tool to Health Platform

In the years following its near-bankruptcy pivot, WHOOP has steadily expanded its ambitions well beyond fitness tracking and athletic recovery. Will Ahmed has been explicit about his view that the boundary between performance and health is increasingly blurring, and that the company’s long-term opportunity lies in delivering insights relevant to every human, not solely elite athletes chasing marginal performance gains.

In May 2025, WHOOP launched its 5.0 and MG (Medical Grade) hardware generations, introducing features including Healthspan with WHOOP Age — an estimate of a person’s biological age based on behavioral and physiological data, which quickly became the most screenshotted and most popular feature in the entire WHOOP app — alongside a Heart Screener incorporating ECG functionality and a Blood Pressure Insights feature.

That expansion into medical-adjacent territory did not proceed without friction. Two months after the 5.0 and MG launch, the US Food and Drug Administration issued a warning letter regarding the Blood Pressure Insights feature, asserting that it appeared to require formal medical device clearance rather than qualifying as a general wellness tool exempt from stricter regulation. WHOOP maintained publicly that the feature was designed and intended purely as a wellness tool, citing the 21st Century Cures Act’s wellness exemption — a framework the agency has historically applied to other categories like heart rate and sleep monitoring technology. The dispute represented a genuinely consequential test case for how regulators will treat the growing category of consumer wearables that increasingly blur the line between casual wellness tracking and clinically meaningful health data.

The regulatory picture shifted again in January 2026, when the FDA reversed its earlier position, allowing the Blood Pressure Insights feature to proceed under the general wellness exemption rather than requiring formal medical device clearance — a resolution Ahmed later confirmed publicly, describing it as a major milestone for the company’s broader health platform ambitions.

The $10.1 Billion Round: Validation at Scale

WHOOP’s most recent funding round, announced in March 2026, raised $575 million in Series G financing at a valuation of $10.1 billion — nearly triple the company’s previous reported valuation of $3.6 billion from a 2021 round led by SoftBank.

The round’s investor roster reflects WHOOP’s evolution from a niche athletic performance tool into something closer to a global health and wellness infrastructure platform. Participants included sovereign wealth funds from the Gulf region — Abu Dhabi’s Mubadala Investment Company and Qatar’s QIA among them — alongside established healthcare institutions including Mayo Clinic and medical device giant Abbott, which joined specifically as a strategic investor reflecting a deepening partnership around health and medical capabilities. The round also included a striking roster of individual athlete-investors: Cristiano Ronaldo, LeBron James, Rory McIlroy, Reggie Miller, and several others — athletes who, in many cases, began as product users years earlier and have since become financial stakeholders in the company’s success.

Today, WHOOP reports approximately 2.7 million members across more than 200 countries, with sales bookings more than doubling over the course of 2025. The company exited 2025 cash-flow positive, a notably different financial position from the near-bankruptcy crisis of 2018, and has now raised more than $900 million in total venture funding since its founding.

For Ahmed, the framing of this moment is explicitly about scale rather than survival. “It does give us the opportunity to accelerate a lot of initiatives around research and development, new technology, as well as growing around the world,” he has said of the funding — a notable contrast to the language of survival and crisis management that defined the company’s earlier years.

Lessons From WHOOP’s Journey

Several themes from Ahmed’s experience offer genuine, transferable value for entrepreneurs building in difficult, unproven categories.

Personal conviction can outlast institutional skepticism, but it requires genuine endurance. Receiving roughly 143 investor rejections did not indicate the underlying idea was wrong — it reflected how genuinely difficult it is to convince capital markets to fund an unproven category at the intersection of multiple technical disciplines. Sustained conviction, absorbed one rejection at a time, was a prerequisite for WHOOP ever reaching the validation it has achieved today.

Founders must evolve as fast as their companies, or the company’s growth will outpace its leader. Ahmed’s panic attack and subsequent hospitalization were not incidental to WHOOP’s business story — they were a direct consequence of a founder being thrust into operational and financial responsibility far beyond his prior experience, with no deliberate plan for managing the resulting stress. His recovery and the behavioral changes that followed were as essential to the company’s eventual success as any product or strategic decision.

The business model matters as much as the product. WHOOP’s underlying technology and brand cachet were genuinely strong well before 2018, yet the company still came within a week of bankruptcy. The constraint was not product-market fit in the conventional sense — athletes loved the device — but a hardware sales model that could not sustain the ongoing software investment the product genuinely required. Recognizing and correcting that mismatch, even when it meant abandoning the conventional approach used by every major competitor, was the single decision most responsible for the company’s survival.

Going narrow before going broad can build a more durable brand than chasing mass market first. WHOOP’s deliberate focus on elite athletes before expanding to general consumers allowed it to build genuine credibility and an aspirational brand identity that would have been far harder to construct by targeting the mass market from day one.

Regulatory friction is often a feature of genuine innovation at the edge of established categories, not necessarily a sign of having done something wrong. WHOOP’s dispute with the FDA over Blood Pressure Insights reflects a broader, ongoing negotiation between fast-moving consumer wearable technology and a regulatory framework built for a different technological era. Companies operating at that genuine edge should expect this kind of friction as a normal cost of building in unsettled regulatory territory, not necessarily evidence of a flawed strategy.

The Bigger Picture

Will Ahmed’s own reflection on what makes entrepreneurship worth the difficulty he has experienced is notably unromantic. “You shouldn’t start a company because you think it’s glamorous,” he has said. His actual advice centers on something closer to obsession: a problem significant enough that it occupies a founder’s thinking constantly — in the shower, staring out a window, lying awake before sleep — is the kind of problem worth committing years of genuine struggle to solving.

That framing captures something essential about WHOOP’s fourteen-year journey from a Harvard dorm room obsession with measuring the human body to a $10.1 billion health platform now embedded in elite sports, professional Formula 1 racing, and the daily routines of millions of members worldwide. The mission, in Ahmed’s own telling, is what made the company’s most painful periods survivable. Whether that same intensity of conviction can carry WHOOP through its next chapter — as a public health platform rather than simply a performance wearable — remains the company’s next genuine test.