Check out the companies making headlines in after-hours trading. Deckers Outdoor — The footwear company’s stock jumped 8% after Deckers reported fiscal first-quarter earnings of $4.52 per share on revenues of $825 million, exceeding analysts’ expectations for earnings of $3.48 per share on revenues of $808 million. Dexcom — Shares of the medical device company plunged more than 35%. Dexcom’s fiscal full-year revenue guidance of $4 billion to $4.05 billion marked a reduction from the outlook it shared earlier in the year. Revenue in the second quarter missed analysts’ expectations, coming in at $1 billion versus consensus estimates of $1.04 billion, per LSEG. Insulet shares slipped 9.1% in sympathy. Boston Beer Company – The maker of Twisted Tea and Samuel Adams slid 5% after second quarter results missed the Street’s estimates. Boston Beer posted earnings of $4.39 per share on revenue of $579 million, while analysts sought $5.02 per share in earnings and $597 million in revenue, per LSEG. Coursera — Shares of the online course provider surged 16%. Second-quarter revenue came in at $170 million, surpassing analysts’ estimates for $164 million, per LSEG. Coursera posted a loss of 15 cents per share, while the Street called for earnings of one cent per share. Mohawk Industries — The flooring manufacturer’s shares added 10%. The company reported adjusted earnings of $3 per share, excluding items, on revenue of $2.8 billion in the second quarter. Analysts polled by FactSet forecasted earnings of $2.75 per share on revenue of $2.84 billion. The company also announced additional restructuring actions to generate annualized savings of $100 million in an effort to reduce costs amid soft market conditions. Juniper Networks – The networking technology company fell 1%. Juniper posted adjusted earnings of 31 cents per share and revenue of $1.19 billion in the second quarter. That came up short against analysts’ estimates of 44 cents per share in earnings and $1.25 billion in revenue, per LSEG. — CNBC’s Darla Mercado contributed reporting.