Check out which companies are making headlines before the bell:

JPMorgan Chase (NYSE: JPM) — Chief Executive Officer Jamie Dimon bought 500,000 shares of company stock for more than $25 million.

Boeing (NYSE: BA) — The stock was downgraded to "neutral" from "overweight" at JPMorgan Chase, which points to recent reports of a Securities and Exchange Commission probe into Boeing's accounting practices for the 787 and 747 aircraft.

ITT Corp. (NYSE: ITT) — The maker of engineered components reported adjusted quarterly profit of 58 cents per share, three cents above estimates, and revenue exceeded forecasts by a wide margin. However, the company gave a 2016 earnings forecast that falls largely below analyst estimates, and said it continues to face a challenging macroeconomic environment. ITT also raised its quarterly dividend by 5 percent to 12.4 cents per share.

Netflix (NASDAQ: NFLX) — The video streaming service was downgraded to "market perform" from "outperform" at FBR, pointing to greater risks in the company's outlook.

Calpine (NYSE: CPN) — The largest U.S. generator of electric power lost 13 cents per share for its latest quarter, three cents smaller than anticipated, while revenue was above analyst estimates.

Pandora Media (NYSE: P) — Pandora earned an adjusted 4 cents per share for its latest quarter, 3 cents shy of estimates, but the online radio service did beat forecasts on the top line. The stock had jumped during Thursday's regular session on a New York Times report that it was exploring a sale.

CBS (NYSE: CBS) — CBS reported adjusted quarterly profit of 92 cents per share, matching estimates, though revenue did exceed forecasts. Revenue benefited from higher ad sales.

Wynn Resorts (NASDAQ: WYNN) — The hotel and casino operator beat estimates by 27 cents with adjusted quarterly profit of $1.03 per share, with revenue slightly short of Street forecasts. Wynn's revenue is being hurt by the ongoing slump in Macau, though Wynn did see upbeat results for its Las Vegas operations.

American International Group (NYSE: AIG) — AIG lost $1.10 per share for its latest quarter, a loss that was 17 cents larger than analysts had anticipated. Separately, the insurance company nominated a representative of activist investor Carl Icahn as well as billionaire John Paulson to its board, announced a 14 percent dividend increase to 32 cents per share, and raised its stock buyback program by $5 billion.

Activision (NASDAQ: ATVI) — Activision missed estimates by 3 cents with adjusted quarterly profit of 83 cents per share, and the video game maker's revenue fell short of estimates as well on lower than expected demand for games other than its flagship "Call of Duty" franchise. Activision also announced a 13 percent dividend increase to 26 cents per share.

FireEye (NASDAQ: FEYE) — FireEye lost 1 cent less than expected at 36 cents per share, and the security software provider saw revenue match Street estimates. The company also gave a lower than expected forecast for the current quarter on slowing spending on cybersecurity.

Groupon (NASDAQ: GRPN) — Groupon earned 4 cents per share for its latest quarter on an adjusted basis, better than the expected breakeven quarter, and the daily deals company also saw revenue come in well above estimates on strong sales in North America. Groupon is also making some headway in its move to become an online marketplace as well as a provider of daily deals.

Nu Skin Enterprises (NYSE: NUS) — Nu Skin missed estimates by 11 cents with quarterly profit of 62 cents per share, with the health care products company also reporting revenue well below forecasts. Nu Skin also gave disappointing 2016 guidance, with weakness in China among the factors pressuring its results.

Dr Pepper Snapple (NYSE: DPS) — The beverage maker increased its stock buyback program by $1 billion, bringing the total to $5 billion, and also raised its quarterly dividend by 10.4 percent to 53 cents per share.

Square (NYSE: SQ) — Visa (NYSE: V) disclosed a nearly 10 percent stake in Square, making the credit card issuer one of the biggest shareholders in the mobile payments company.

Sirius XM (NASDAQ: SIRI) — Sirius XM Canada — in which the satellite radio operator holds a 32 percent stake — is being taken private, according to a report in the Globe and Mail.

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