Is Jlau the Submission of the Night leader?

Joe Lauzon is widely reported to be tied with Demain Maia and Nate Diaz for most Submission of the Night performance bonus wins, at four each.

JLau SOTYs:
Joe Lauzon vs. Melvin Guillard, UFC 136, October 8, 2011 >>>>>

Joe Lauzon vs. Chris Warburton, UFC on Versus 4/UFC Live: Kongo vs. Barry, June 26, 2011
Joe Lauzon vs. Gabriel Ruediger, UFC 118, August 28, 2010
Joe Lauzon vs. Jeremy Stephens, UFC Fight Night 17/UFC Fight Night: Lauzon vs. Stephens,     February 7, 2009
In addition, Lauzon has won three Fight of the Night bonuses:

Joe Lauzon vs. George Sotiropoulos, UFC 123, November 20, 2010
Joe Lauzon vs. Sam Stout, UFC 10, January 2, 2010
Joe Lauzon vs. Kenny Florian, UFC Fight Night: Florian vs. Lauzon, April 2, 2008
However, Lauzon reportedly won a Submission of the Night bonus for choking out Brandon Melendez at the TUF 5 Finale, and a Knockout of the Night bonus for his 48-second KO of Jens Pulver at UFC 63. but these bonuses were never officially announced by the UFC.

via:UG