Morgan, Lewis & Bockius partners voted early Friday afternoon to admit 227 Bingham McCutchen partners into the firm. Morgan Lewis confirmed the mass lateral move in a press release, which omitted any mention of a merger. Five sources briefed on the matter say that the deal is indeed not a merger but an acquisition of assets by Morgan Lewis.

Bingham McCutchen partners invited to join Morgan Lewis are expected to make the move before month’s end. Other Bingham McCutchen lawyers and staffers are expected to join Morgan Lewis in time, according to a handful of knowledgeable sources. The hires will make Morgan Lewis a 2,000-lawyer firm with offices in 28 cities.