Kodak — Kodak shares slid more than 30% after a federal agency said its $765 million loan for the company, which would have helped the company launch a pharmaceuticals unit, has been put on hold.

The move comes amid a report from The Wall Street Journal that the company is under investigation by the SEC over how it disclosed the loan, which kicked off a frenzy of trading activity in the stock.

SeaWorld Entertainment — Shares of the parks and entertainment company dropped more than 1% following its dismal quarterly earnings.

SeaWorld reported a loss of $1.68 per share, compared to the expected loss of 97 cents per share.

Berkshire Hathaway — Berkshire Class B shares climbed as much as 1.4% after Warren Buffett's conglomerate said over the weekend that it repurchased a record value of its own equity in the second quarter.

Barrick Gold — Shares of the gold company gained 0.8% following the company's strong earnings.

Barrick Gold reported earnings of 23 cents per share on revenue of $3.06 billion.

Analysts polled by Refinitiv expected earnings of 19 cents per share on revenue of $2.9 billion.

Canopy Growth — Canopy shares rose nearly 10% after the cannabis company reported a narrower-than-expected loss for its fiscal first quarter.

The Wall Street firm said residential pricing is expected to improve while e-commerce parcel delivery will remain strong going forward.