PRAH - SEC Form 4 insider transactions

SEC Form 4: Gaenzle Christopher L returned 34,500 units of Common Stock to the company, closing all direct ownership in the company

SEC Form 4: SHANNON COLIN returned 46,500 units of Common Stock to the company, closing all direct ownership in the company

SEC Form 4: Bonello Michael J. returned 4,480 units of Common Stock to the company, closing all direct ownership in the company

SEC Form 4: Young Matthew P. returned 7,127 units of Common Stock to the company, closing all direct ownership in the company

SEC Form 4: Stettin Glen D. returned 1,049 units of Common Stock to the company, closing all direct ownership in the company

SEC Form 4: MOMTAZEE JAMES C returned 3,521 units of Common Stock to the company, closing all direct ownership in the company

SEC Form 4: Dickinson Alexander George returned 5,407 units of Common Stock to the company, closing all direct ownership in the company

SEC Form 4: Grais Linda returned 9,683 units of Common Stock to the company, closing all direct ownership in the company

SEC Form 4: Barber Jeffrey T returned 14,729 units of Common Stock to the company, closing all direct ownership in the company

SEC Form 4: Bonello Michael J. sold $1,229,886 worth of Common Stock (7,384 units at $166.56), decreasing direct ownership by 62% to 4,480 units (Amendment)

SEC Form 4: SHANNON COLIN sold $1,353,611 worth of Common Stock (8,126 units at $166.58), decreasing direct ownership by 15% to 46,500 units (Amendment)

SEC Form 4: Gaenzle Christopher L exercised 27,497 units of Common Stock at a strike of $100.88 and sold $4,637,811 worth of Common Stock (27,497 units at $168.67)

SEC Form 4: Bonello Michael J. exercised 52,551 units of Common Stock at a strike of $87.41 and sold $8,865,147 worth of Common Stock (52,551 units at $168.70)

SEC Form 4: SHANNON COLIN exercised 442,241 units of Common Stock at a strike of $46.63 and sold $74,634,069 worth of Common Stock (442,241 units at $168.76)

SEC Form 4: Gaenzle Christopher L exercised 26,893 units of Common Stock at a strike of $100.88 and sold $4,832,342 worth of Common Stock (28,866 units at $167.41), decreasing direct ownership by 5% to 34,500 units

SEC Form 4: Bonello Michael J. exercised 38,339 units of Common Stock at a strike of $79.49 and sold $8,103,907 worth of Common Stock (48,342 units at $167.64), decreasing direct ownership by 46% to 11,864 units

SEC Form 4: SHANNON COLIN exercised 221,031 units of Common Stock at a strike of $11.73 and sold $38,776,958 worth of Common Stock (231,348 units at $167.61), decreasing direct ownership by 16% to 54,626 units

SEC Form 4: Young Matthew P. was granted 250 units of Common Stock, increasing direct ownership by 4% to 7,127 units

SEC Form 4: SHANNON COLIN was granted 14,486 units of Common Stock and sold $1,102,812 worth of Common Stock (6,470 units at $170.45), increasing direct ownership by 14% to 64,943 units (withholding obligation)

SEC Form 4: Stettin Glen D. was granted 250 units of Common Stock, increasing direct ownership by 31% to 1,049 units

SEC Form 4: Bonello Michael J. was granted 4,823 units of Common Stock and sold $372,263 worth of Common Stock (2,184 units at $170.45), increasing direct ownership by 14% to 21,867 units (tax withholding)

SEC Form 4: MOMTAZEE JAMES C was granted 330 units of Common Stock, increasing direct ownership by 10% to 3,521 units

SEC Form 4 filed by PRA Health Sciences, Inc.

SEC Form 4: Gaenzle Christopher L was granted 2,823 units of Common Stock and sold $144,882 worth of Common Stock (850 units at $170.45), increasing direct ownership by 6% to 36,473 units (for tax liability)

SEC Form 4 filed by PRA Health Sciences, Inc.

SEC Form 4: Dickinson Alexander George was granted 250 units of Common Stock, increasing direct ownership by 5% to 5,407 units

SEC Form 4: Bonello Michael J. sold $341,545 worth of Common Stock (2,048 units at $166.77), decreasing direct ownership by 10% to 19,228 units (withholding obligation)