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

On this episode of Stock Movers:

- Meta Platforms (META) shares fell after the New York Times reported that Meta would delay the rollout of a new A.I. model after it had performance concerns

- Adobe (ADBE) stocks plunged after Chief Executive Officer Shantanu Narayen announced he will resign from his position atop the creative software giant amid deep skepticism about the company’s ability to thrive in the AI era.

- Ulta Beauty (ULTA) shares dropped after the cosmetics retailer reported earnings per share for the fourth quarter that missed consensus. Analysts flag that the full-year forecast was disappointing, while Morgan Stanley notes that the guidance might be conservative.