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Northrop Grumman to buy Orbital ATK, Rite Aid nears Walgreens deal, Nabriva holds successful trials and two Equifax execs “retire”

Here’s a look at some of the stocks the Yahoo Finance team will be watching for you today.

Orbital ATK (OA), the maker of missiles and rockets, is rallying on news that it will be acquired by defense contractor Northrop Grumman (NOC) for $7.8 billion in cash. The deal will also include the assumption of Orbital’s $1.4 billion in net debt.

Rite Aid (RAD) shares are popping this morning on news that Walgreens is wrapping up negotiations with the Federal Trade Commission to purchase over 2,000 Rite Aid stores. Walgreens had initially planned to buy the company outright but anti-trust fears forced it to announce a new plan, valued at over $5 billion to buy about half of its rivals stores instead.

Nabriva Therapeutics (NBRV) is up today on news of a successful late-stage trial of a treatment for community-acquired bacterial pneumonia. The antibiotic, called lefamulin, was tested in 551 patients and its success suggests it may one day replace standard treatment drugs like penicillin. “Community acquired pneumonia” is the leading cause of death by infectious disease in the United States.

Two top executives at Equifax (EFX), its chief information officer and chief security officer, are retiring from the company. This comes one week after that massive data breach exposing the private information of 143 million Americans. No word on how their retirement package is being structured.