agree that GenRe was not a good deal. Buffett said this in the 2016 Annual Report about the GenRe deal:
Unfortunately, I followed the GEICO purchase by foolishly using Berkshire stock – a boatload of stock – to buy General Reinsurance in late 1998. After some early problems, General Re has become a fine insurance operation that we prize. It was, nevertheless, a terrible mistake on my part to issue 272,200 shares of Berkshire in buying General Re, an act that increased our outstanding shares by a whopping 21.8%. My error caused Berkshire shareholders to give far more than they received (a practice that – despite the Biblical endorsement – is far from blessed when you are buying businesses).