Deals of the day-Mergers and acquisitions

July 1 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 1330 GMT on Tuesday:

Packaging Corp of America <PKG.N> said it will buy the containerboard business of peer Greif <GEF.N> for $1.8 billion, aimed to increase its capacity for the material commonly used to ship consumer goods and industrial products.nL4N3SY0T6

RedBird Capital Partners-backed Bishop Street Underwriters has acquired Ohio-based Aerospace Insurance Managers from Hallmark Financial. nL6N3SY0LR

Grammarly has acquired email efficiency tool Superhuman as part of the company's push to build an artificial intelligence-powered productivity suite and diversify its business, its executives told Reuters in an interview. nL6N3SY067

Smythson of Bond Street, the British luxury leather goods and stationery brand, has been bought by Iconic BrandCo, a company controlled by Oakley Capital which invests in heritage brands, the private equity firm said.nL8N3SY0JQ

BMS Group announced it has completed the acquisition of Queensland-based Corporate and Commercial Insurance Brokers.nL6N3SY0FG

Italy's Leonardo will buy a 24.55% stake in Finland's SSH , making it the latter's biggest shareholder as it expands its cyber security business with this new strategic partnership, the companies announced.nL6N3SY0CM

A company controlled by private equity firm Advent International has offered an about 3.5% stake in parcel locker firm InPost to institutional investors, a bookrunner said.nL8N3SY07I

Italian asset manager Banca Mediolanum said on Monday has completed the sale of its entire 3.5% stake in merchant bank Mediobanca for about 548.4 million euros ($646.2 million).nL8N3SX1CL