13D Filing: Praesidium Investment Management Company, LLC and Progress Software Corp (PRGS)

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Annex A

Except as set forth
below, there have been no transactions in the Common Stock by the Reporting Persons or, to the knowledge of the Reporting Persons,
by any of the other persons named in Item 2 since the filing of Amendment No. 9 to the Schedule 13D.

Since the filing
of Amendment No. 9 to the Schedule 13D, inclusive of transactions effected through 4:00 p.m., New York City time, on September
14, 2017, the Reporting Persons effected the following sales of shares of Common Stock in open market transactions:

Nature of Transaction Date of Purchase/Sale Amount Purchased/(Sold) Price Per Share
Purchase 09/01/2017 84,775 33.4015
Sale 09/01/2017 (85,000) 33.3810
Sale 09/07/2017 (18,218) 33.5211
Sale 09/08/2017 (72,746) 33.5959
Sale 09/11/2017 (20,000) 34.3393

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