Check out the companies making headlines after the bell. Salesforce – Salesforce fell 4% after providing weaker-than-expected guidance for the fiscal year. In the fourth quarter, the software company beat Wall Street's expectations for the fourth quarter in terms of both top and bottom line results. The software giant increased buybacks by $10 billion and began paying a dividend of 40 cents per share. Snowflake – Shares of Snowflake fell 20% after the business software company announced the retirement of its CEO, Frank Slootman. The news coincided with quarterly results that beat Wall Street estimates, but the company provided weaker-than-expected product revenue guidance for the first quarter. Duolingo – Shares of the language learning platform rose 19% after beating quarterly estimates and posting strong monthly average user and booking numbers. Duolingo also provided strong revenue guidance for the first quarter and full year. Okta – Okta stock rose 20% on better-than-expected quarterly results and first-quarter guidance. The company beat earnings expectations by 12 cents, and said it expects revenue for the current period to range between $603 million and $605 million. That exceeded the $583.8 million expected by analysts surveyed by FactSet. C3.ai – Artificial Intelligence stock up 13%. C3.ai reported a lower-than-expected adjusted loss of 13 cents per share and beat revenue estimates for the latest quarter. Paramount Global – Paramount Global shares rose 1% after posting mixed quarterly results. The media company reported surprise adjusted earnings of 4 cents per share, beating the 1-cent loss expected by analysts polled by LSEG, formerly known as Refinitiv. Revenues fell short of expectations. Pure Storage – Data storage stocks rose 6.6%. Pure Storage topped Wall Street's quarterly estimates, according to LSEG, reporting earnings of 50 cents per share on revenue of $790 million. First-quarter revenue guidance also came in above estimates from analysts surveyed by StreetAccount. Nutanix – Nutanix stock rose 1% thanks to fiscal second-quarter earnings that beat analysts' expectations. The cloud computing company reported adjusted earnings of 46 cents per share on revenue of $565 million. That came ahead of earnings of 29 cents per share and revenue of $551 million expected by analysts polled by LSEG. HP – Shares of HP Inc. fell. By approximately 4% after announcing the results of the first fiscal quarter. The company reported revenue of $13.19 billion, below the $13.56 billion forecast of analysts polled by LSEG. AMC Entertainment – Movie theater stock fell 8%. AMC Entertainment reported a larger-than-expected loss of 83 cents per share in the fourth quarter. Analysts polled by LSEG called for a loss of 70 cents per share. Fig – The healthcare apparel company sank 13% on mixed fourth-quarter results. Adjusted earnings per share were 5 cents and beat LSEG estimates of 2 cents per share. Figs reported revenue of $145 million, versus $150 million expected.