||pursuant to the terms of the grant, the exercise of the stock appreciation rights ("sars") was settled in shares of the issuer's common stock, and a portion of these shares are deemed to have been forfeited to the issuer to cover the exercise price and tax withholding obligation. this exercise and settlement of shares forfeited did not involve any open-market sales of the issuer's common stock.
||the sales reported in this form 4 were effected pursuant to a rule 10b5-1 trading plan adopted by the reporting person on june 13, 2019. the sales previously reported on forms 4 filed on august 5, 2019 and september 5, 2019 were also effected under the same 10b5-1 trading plan.
||this price represents a weighted average price. these shares were sold in eleven transactions at prices ranging from $59.56 to $59.84, inclusive. the reporting person undertakes to provide to the issuer, any security holder of pros holdings, inc., or the staff of the securities and exchange commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes 3 and 4 to this form 4.
||the average price for the sale in footnote 3 was also used as the price for the payment of the associated tax liability for the transaction.
||these sars were granted on december 14, 2010. the initial 25% vested on the first anniversary of the grant. the remaining unvested sars vested monthly over the subsequent three-year period ending on february 24, 2014. it is mandatory that these sars be exercised before the ten-year anniversary of the grant date to avoid forfeiture.
||includes unexercised sars granted on december 14, 2010 with the same vesting information as noted in footnote 5.