How can I get a count of Tickets Closed on a given day?

I have a table that stores the status changes of a ticket. Some tickets were re-opened after being closed. And in certain cases (example below) re-opened several times.

Ticket  SEQUENCE    NEWVALUE    OLDVALUE        TIMESTAMP
5879    15870       REQUEST     NULL        2015-06-10 12:13:28.000
5879    16256       Pending     REQUEST     2015-06-11 14:26:38.000
5879    21642       Open        Pending     2015-07-02 13:32:47.000
5879    21943       Pending     Open        2015-07-06 09:55:37.000
5879    23195       Open        Pending     2015-07-09 15:00:47.000
5879    24917       Pending     Open        2015-07-17 15:09:28.000
5879    25903       Closed      Pending     2015-07-22 11:13:03.000
5879    25940       Open        Closed      2015-07-22 12:56:05.000
5879    25972       Pending     Open        2015-07-22 13:54:30.000
5879    25996       Closed      Pending     2015-07-22 14:31:05.000
5879    26484       Pending     Closed      2015-07-24 14:43:28.000
5879    26776       Closed      Pending     2015-07-27 11:34:00.000

I am trying to determine the last time a ticket was Closed. But I have no idea how to even begin this query. Could someone provide a clue? Thanks so much!