Find out about the companies making headlines for trading after hours. Broadcom — Shares fell 3% after the semiconductor company released full-year revenue guidance that was in line with analysts’ expectations, according to LSEG. For its fiscal first quarter, Broadcom reported adjusted earnings of $10.99 per share, while analysts polled by LSEG expected $10.29 per share. Revenue was $11.96 billion, above analysts’ forecast of $11.72 billion at LSEG. Marvell Technology – Shares fell 8% after Marvell, which supplies semiconductor products for data infrastructure, issued modest first-quarter revenue guidance of $1.15 billion, while analysts polled by LSEG expected $1. 37 billion. Marvell also reported softer-than-expected guidance for first-quarter adjusted earnings. GAP — The clothing retailer’s share price jumped 7% after its latest quarter earnings beat analysts’ expectations. Gap reported earnings per share of 49 cents on revenue of $4.3 billion, while analysts had forecast earnings of 23 cents per share on revenue of $4.22 billion, according to LSEG. The company’s Old Navy brand returned to growth for the first time in more than than in a year, contributing to Gap’s overall gross profit growth. Costco Wholesale — Shares fell 4% after the retailer slightly missed fiscal second-quarter revenue expectations. Costco reported revenue of $58.44 billion, compared with analysts’ expectations of $59.16 billion, according to LSEG. MongoDB — Shares fell 12% after the database software maker gave disappointing first-quarter and full-year guidance. However, the company beat expectations in the fourth quarter, posting adjusted earnings of 86 cents per share, compared with analysts’ expectations of 47 cents per share, according to LSEG. Revenue for the quarter was $458 million, beating expectations of $433 million. DocuSign — Shares of DocuSign, which offers electronic signature products, rose 12% after the company beat expectations and gave a positive outlook for the first quarter. The company reported fourth-quarter adjusted earnings of 76 cents per share on revenue of $712 million in the period. Analysts had expected earnings of 64 cents per share on revenue of $699 million, according to LSEG. Samsara – Internet of Things company shares rose 15%. Samsara reported fourth-quarter revenue of $276 million, while analysts polled by LSEG expected $258 million. — CNBC’s Darla Mercado contributed reporting.