Vector has until close od business July 6th to match !!!!So do they step up? Francisco Partners has offered to buy Waterloo-based Sandvine, a maker of hardware and software that helps manage network traffic, for $4.15 a share. The offer came a month after Vector Capital announced a deal to buy Sandvine for $3.80 per share. That offer valued Sandvine at $483 million. Vector, also headquartered in San Francisco, has until the close of business on July 6 to match the offer from Francisco Partners