Today's biggest winners and losers in the stock market.

On this episode of Stock Movers:

- Anthropic (ANT) filed for an IPO, warning its technology carried existential risks even as it moved a step closer to being the first company focused primarily on developing the most advanced artificial intelligence models to go public.
The company behind Claude expects to begin trading on the Nasdaq Global Select Market under the symbol ANT, a filing Monday with the US Securities and Exchange Commission showed. Anthropic filed confidentially in June for a listing.

- Meta Platforms (META) is seeking to raise as much as $95 billion from selling common and preferred stock, supporting its development in artificial intelligence with one of the largest equity offerings in history.
The company is offering about $35 billion of common and preferred stock, according to a statement Monday. It also plans to raise as much as about $60 billion in an at-the-market share sale program, which allows companies to sell shares in the open market from time to time. The ATM will consist of its planned Class C nonvoting shares.

- Fair Isaac (FICO) shares are down after the financial services company said late Friday it will hold its wholesale mortgage price for the FICO Score through tri-merge resellers at $10 for lenders and brokers enrolled in its Preferred Program.