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Tempus AI short seller report Eric Lefkofsky
Tempus CEO Eric Lefkofsky (Big Event Media/Getty Images)

Tempus AI hammered by short seller’s report

The short seller warned that the shares could drop 60%, spotlighting what it described as “aggressive accounting, financial reporting, and suspicious revenue-generating partnerships.”

Matt Phillips

Tempus AI, a healthcare data and diagnostics company that’s recently piqued the interest of retail traders, plunged Wednesday after bearish hedge fund Spruce Point Capital unloaded a searing report on the company, warning that it sees a “50% - 60% potential long-term downside and market underperformance risk.”

Spruce Point wrote:

We believe the Tempus equity growth story is built on hype and appeal to retail investors that it is an exciting and disruptive technology play with AI appeal which could have the next Tesla or Nvidia-type inflection.

Rather, we think investors should focus on its aggressive accounting, financial engineering, related party dealings, and earnings quality.

Tempus AI responded:

We do not intend to respond to a report that is riddled with hypotheticals and inaccuracies and fails to address Tempus history of strong financial performance and impressive growth. We remain focused on delivering shareholder value, taking advantage of the enormous opportunity of bringing AI to healthcare, and helping patients live longer and healthier lives.

Tempus AI emerged earlier this year in a list of the top 100 holdings among Robinhood investors, after ETF manager Cathie Wood — who has her own following among individual traders — began building a position in the stock. As of Tuesday’s close, the shares of the company, which has reported fast revenue growth but remains unprofitable, were up 95% for the year.

Spruce Point’s report criticized the company’s CEO, Eric Lefkofsky, saying he “is surrounded by a group of loyalists with a record of disappointing public investors at prior ventures such as Starbelly.com / HA-LO Industries (bankruptcy), Groupon (restatement), and InnerWorkings (restatement). We believe history may repeat and that Tempus investors are likely to be disappointed by a combination of aspirational goals that fail to materialize. In the past, Lefkofsky and partners positioned their companies to be the next Dell and Costco. Today, they talk about Tempus having technology leadership and upcoming inflection points like Nvidia or Tesla.”

It also noted that “Tempus insiders have not waited long since the IPO in April 2024 to start selling stock. In fact, each of the top 5% stockholders have recently sold shares.”

Coincidentally, we spoke with Lefkofsky on Tuesday for an interview, and asked him about the recent string of recent stock sales, including sales of some $190 million in shares in February by entities controlled in part by Lefkofsky.

“Im a limited partner in a fund,” he said. “And that fund had to sell its stock because it doesnt hold public company stocks. So, part of that was attributed to me.”

Other stock sales, he said, were related to tax withholding requirements.

“I intend to be a very long-term shareholder and a very slow seller as I have in other places,” Lefkofsky said.

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Constellation Energy rallies as results beat estimates, with Calpine acquisition boosting growth

Shares of Constellation Energy are modestly higher in early trading after the owner of the largest fleet of US nuclear plants reported better-than-expected Q1 results.

The key numbers:

  • Adjusted operating earnings of $2.74 per share (compared to analyst estimates of $2.53).

  • Operating revenue of $11.12 billion (estimate: $8.57 billion).

The company also reaffirmed its full-year adjusted operating earnings guidance of $11.00 to $12.00 per share, roughly aligned with the consensus call for $11.53.

Constellation Energy has been racing to meet the voracious power demands of hyperscalers’ data centers, which are central to the AI boom.

This quarter was defined by the finalization of its $16.4 billion Calpine acquisition on January 7, which cemented Constellation’s status as the nation’s largest electricity producer and drove a large year-on-year increase in its sales and operating earnings. To satisfy federal requirements following the merger, the company agreed in March to sell 4.4 gigawatts of natural gas capacity to LS Power for $5 billion.

And as the deal is finalized, Reuters reported that the company is pursuing 1 gigawatt in capacity uprates over the next decade, including a 135-megawatt increase at its Braidwood and Byron Clean Energy Centers in northern Illinois as it prioritizes long-term contracts with hyperscalers.

Investors remain watchful regarding the planned Three Mile Island restart. While central to Constellation’s long-term strategy, recent reports from April 6 suggest that transmission delays and grid bottlenecks could slow the timeline for bringing the plant back online.

Despite today’s earnings beat, the stock has faced some recent volatility, down about 15% year to date.

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Cerebras plans to raise IPO range amid surging AI demand

Cerebras Systems is reportedly considering raising both the size and price range of its IPO because of surging demand for its shares and AI hardware.

The Cerebras IPO has been oversubscribed by more than 20x, prompting the company to raise its proposed IPO range to $150 to $160 a share, up from $115 to $125 ​a share, while increasing the number of shares marketed to 30 million from 28 million, Reuters reports. At the high end of the revised range, Cerebras could raise around $4.8 billion, up from $3.5 billion.

This surge underscores a massive investor appetite for AI semiconductor plays that offer a credible alternative to Nvidia. Led by Morgan Stanley, Citigroup, Barclays, and UBS, the deal positions Cerebras to trade under the symbol CBRS on the Nasdaq.

Cerebras first filed for an IPO in 2024 but pulled that plan last year. Since then, Cerebras has secured clients including Amazon and OpenAI.

The company makes specialized wafer-scale AI chips, designed specifically for AI training and inference. Their flagship product is the Wafer-Scale Engine-3 (WSE-3), the world’s largest and fastest AI chip, holding 4 trillion transistors.

This surge underscores a massive investor appetite for AI semiconductor plays that offer a credible alternative to Nvidia. Led by Morgan Stanley, Citigroup, Barclays, and UBS, the deal positions Cerebras to trade under the symbol CBRS on the Nasdaq.

Cerebras first filed for an IPO in 2024 but pulled that plan last year. Since then, Cerebras has secured clients including Amazon and OpenAI.

The company makes specialized wafer-scale AI chips, designed specifically for AI training and inference. Their flagship product is the Wafer-Scale Engine-3 (WSE-3), the world’s largest and fastest AI chip, holding 4 trillion transistors.

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Alphabet is preparing a Japanese yen bond offering

Having already issued tens of billions of dollars in European, US, and Canadian debt this year, Alphabet is now preparing to tap the Japanese bond market.

While the filing states that the debt is meant to fund “general corporate purposes,” it’s likely that at least some of it will go toward its ballooning $190 billion in capital expenditure this year, as four major tech companies pour a combined $700 billion into capex to build out AI infrastructure.

Though there was no specified value in the filing, Reuters reports the issuance could total several hundred billion yen — 100 billion yen is equal to more than $600 million at current exchange rates.

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Lumentum jumps on Nasdaq-100 Index inclusion

Lumentum rose in early trading on Monday after Nasdaq announced on Friday that it would add the optics company to its benchmark index alongside some of the world’s biggest tech companies.

Lumentum makes optical components that use light, rather than traditional copper interconnects, to move data within and between servers in data centers. Its technology is increasingly seen as critical for scaling artificial intelligence capacity.

The stock rose 4.8% in premarket trading by 6 a.m. ET. Shares are up 134% since the start of the year through Friday’s close.

On May 18, it will join the Nasdaq-100 Index, which underpins millions of portfolios. It will replace CoStar Group, a real estate data company.

Lumentum makes optical components that use light, rather than traditional copper interconnects, to move data within and between servers in data centers. Its technology is increasingly seen as critical for scaling artificial intelligence capacity.

The stock rose 4.8% in premarket trading by 6 a.m. ET. Shares are up 134% since the start of the year through Friday’s close.

On May 18, it will join the Nasdaq-100 Index, which underpins millions of portfolios. It will replace CoStar Group, a real estate data company.

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