NEW YORK, December 31, 2025, 17:04 ET — After-hours
- CoreWeave shares were down 3.1% in after-hours trading, ending the year on a weaker note.
- A recent SEC filing showed Chief Strategy Officer Brian Venturo sold 281,250 shares on Dec. 24 under a pre-arranged trading plan.
- Investors are looking ahead to CoreWeave’s next results update, expected in February.
CoreWeave shares fell 3.1% to $71.61 in after-hours trading on Wednesday, after sliding in the regular session and swinging between $70.43 and $74.30 during the day.
The pullback matters because CoreWeave has been a heavily watched “AI infrastructure” trade, where sentiment can turn quickly on any sign insiders are cashing out or that expansion plans will require fresh funding.
It also comes after the company cut its annual revenue forecast in November, citing data center delays, a setback that sharpened investor focus on execution in a business that depends on rapid buildouts. 1
A Form 4 filed on Dec. 29 showed Chief Strategy Officer and director Brian Venturo converted 281,250 shares of Class B stock into Class A and sold the same amount on Dec. 24 through West Clay Capital LLC at weighted-average prices around $79 to $81. In the filing, Venturo wrote: “The reported transaction represents a sale effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 21, 2025.” A Rule 10b5-1 plan is a pre-set schedule that lets insiders trade at predetermined times. 2
A related Form 144, also filed on Dec. 29, put the proposed sale value at about $22.6 million and said the Dec. 24 trades were reported that day because Dec. 24 and Dec. 26 were treated as federal holidays for EDGAR filing purposes. 3
CoreWeave rents out cloud computing capacity built around high-end AI chips and went public on Nasdaq in March, one of the year’s most closely followed AI-related IPOs. 4
In its most recent quarterly update, CoreWeave pointed to rapid growth in demand for AI workloads and highlighted large multi-year customer commitments, including expanded arrangements with Meta and OpenAI. 5
The same results showed revenue growth alongside heavy costs, with interest expense a key drag—an issue investors have tracked closely as the company finances data center expansion. 5
Other names tied to the AI infrastructure theme were softer on the day, with Nvidia down about 0.5% and Core Scientific down about 0.3%, reflecting a cautious tone into year-end trading.
Traders are watching for more insider filings in the new year and for evidence that CoreWeave’s buildout pace is stabilizing after the earlier data center disruptions flagged in November. 1
Wall Street will also be looking for the next earnings update, with Nasdaq’s calendar listing a February 9, 2026 date, though companies can change reporting schedules. 6
U.S. equity markets are set to close for New Year’s Day on Thursday and reopen on Friday, leaving the stock to digest the week’s disclosures and year-end positioning before the next regular session. 7
