Billionaire investor Warren Buffett told CNBC on Monday he's in the market to do several small acquisitions over the next six months, but ruled out any major takeover deals for a while. His comments came after his Berkshire Hathaway Inc. /zigman2/quotes/208872451/composite BRK.A +0.11% /zigman2/quotes/200060694/composite BRK.B +0.09% announced its biggest buyout deal ever, through the $32 billion takeover of Precision Castparts Corp. . Speaking with CNBC's Squawk Box Monday morning, Buffett said his company now needs time to "reload" on cash reserves after the Precision takeover, ruling out another "elephant"-sized deal, but noting that it won't exclude smaller acquisitions. B-shares of Berkshire Hathaway were down 1.4% ahead of the bell, while the A-shares were flat. Precision shares rallied 20%.