X0303 4 2010-02-16 0 0001370314 Double-Take Software, Inc. DBTK 0001382851 Lesh Michael 257 TURNPIKE ROAD SUITE 210 SOUTHBOROUGH MA 01772 0 1 0 0 VP of Services and Support Common Stock 2010-02-16 4 M 0 1704 0.00 A 27704 D Common Stock 2010-02-16 4 F 0 557 8.48 D 27147 D Restricted Stock Units 0.00 2010-02-16 4 M 0 1704 0.00 D Common Stock 1704 5111 D Restricted Stock Units 0.00 2010-02-16 4 A 0 8750 0.00 A Common Stock 8750 8750 D Shares of common stock acquired on the vesting of restricted stock units. Shares of common stock withheld by the issuer for the payment of withholding taxes in connection with the delivery of common stock on the vesting of restricted stock units. Each restricted stock unit represents a contingent right to receive one share of Double-Take Software common stock. The restricted stock units when originally issued were set to vest in four annual installments, beginning on February 16, 2010. The restricted stock units remaining after the reported transaction will vest in three annual installments, beginning February 16, 2011. In certain instances, delivery of shares may be delayed to facilitate the ability of the reporting person to sell shares to cover tax obligations. The restricted stock units vest in four equal annual installments beginning February 16th, 2011. In certain instances, delivery of shares may be delayed to facilitate the ability of the reporting person to sell shares to cover tax obligations. /s/ S. Craig Huke Attorney-in-Fact 2010-02-18