Check out the companies making headlines in after-hours trading:

Netflix — Netflix shares dropped 19% in extended trading after the company’s quarterly report showed slowing subscriber growth. The streaming giant added 8.28 million global paid net subscribers during the fourth quarter, which was ahead of Wall Street’s expectations for 8.19 million, according to estimates from StreetAccount. But the number declined year over year. Netflix beat EPS estimates for the period, earning $1.33 per share compared with the 82 cents analysts surveyed by Refinitiv were expecting. Revenue came in at $7.71 billion, in line with expectations.

CSX — Shares of the rail company declined 2% despite top- and bottom-line beats for the fourth quarter. CSX earned 42 cents per share on $3.43 billion in revenue, ahead of the 41 cents and $3.32 billion in revenue analysts surveyed by Refinitiv were expecting.

Intuitive Surgical — Intuitive Surgical shares dipped 2% despite the company’s latest earnings report, which topped estimates. The medical company earned $1.30 per share, excluding items, on $1.55 billion in revenue. Analysts surveyed by Refinitiv were expecting $1.28 per share on $1.52 billion in revenue.

PPG Industries — Shares of the paint company slid 3% during extended trading. PPG earned $1.26 per share, excluding items, during the fourth quarter on $4.19 billion in revenue. Wall Street was expecting $1.18 per share on $4.04 billion in revenue, according to estimates from StreetAccount.