ExxonMobil, Lockheed Martin, Disney

See which companies are making headlines before the bell rings.

walt disney — Shares of the media giant rose more than 1% after the Wall Street Journal reported that activist investor Nelson Peltz’s Trian Fund Management may increase its stake and seek several board seats, including his own. Trian’s stake is now worth more than $2.5 billion after adding more than 30 million shares, up from 6.4 million at the end of June, according to the Journal. Trian declined to comment.

Arm Holdings — Shares of the chipmaker rose nearly 3% after JPMorgan initiated coverage with an overweight rating and praised the company’s potential expansion into the automotive sector.

Spotify Technology — The music streaming platform fell 2% after Redburn Atlantic downgraded its stock to neutral from buy. The company cited factors including gross margin dilution resulting from the company’s recent decision to include audiobooks in its premium subscription packages.

Zscaler — Shares rose after Barclays upgraded the cloud security company to an overweight rating. Analyst Saket Kalia cited new growth opportunities in emerging segments as reasons for the upgrade.

trust — Evercore ISI’s stock added about 1% after it upgraded Oracle to perform better than inline. The Wall Street firm said software stocks are at an attractive entry point after recent declines.

ExxonMobil, chevron, Occidental Petroleum — Energy stocks surged as oil prices rose following last weekend’s attack on Israel by the Palestinian militant group Hamas. Exxon and Chevron rose more than 2%, and Occidental rose more than 3%.

Blue Owl Capital — The investment firm’s shares fell 2.6% after Oppenheimer downgraded Blue Owl Capital to perform from outperform.

targeted therapeutics — Shares of the commercial-stage oncology company fell 4.7% after Bristol Myers Squibb announced Sunday that it would acquire Mirati for $58 per share in cash, for a total stock value of $4.8 billion. Mirati is known for its Krazati lung cancer treatment, which Bristol Myers Squibb will add to its commercial portfolio.

tesla — Tesla shares fell more than 1% in China last month after showing a 10.9% year-on-year decline, according to data from the China Passenger Car Association. On the other hand, competitor BYD’s sales grew by more than 40%.

lockheed martin — The aerospace and defense company saw its shares rise about 4.5% in premarket trading following Hamas’ surprise attack on Israel.

— CNBC’s Brian Evans and Lisa Kailai Han fred Imbert, Ha-Kyung Kim, Yun Li, Tanaya Macheel and Pia Singh participated in the reporting.