Explanation of Responses:
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1)
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Shares acquired upon vesting of the November 1, 2013, November 3, 2014, November 2, 2015 and November 1, 2016 awards of service-based
Restricted Stock Units.
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2)
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This transaction was executed pursuant to a Rule 10b5-1 trading plan, in multiple trades at prices ranging from $131.80 to $132.58 The reported price is the weighted average sale price. The reporting person undertakes to provide to the Company, any security holder of the Company, or Securities and Exchange Commission staff, upon request, complete information regarding the number of shares sold at each separate price.
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3)
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This transaction was executed pursuant to a Rule 10b5-1 trading plan, in multiple trades at prices ranging from $132.895 to $133.85 The reported price is the weighted average sale price. The reporting person undertakes to provide to the Company, any security holder of the Company, or Securities and Exchange Commission staff, upon request, complete information regarding the number of shares sold at each separate price.
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4)
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This transaction was executed pursuant to a Rule 10b5-1 trading plan, in multiple trades at prices ranging from $133.99 to $134.9899 The reported price is the weighted average sale price. The reporting person undertakes to provide to the Company, any security holder of the Company, or Securities and Exchange Commission staff, upon request, complete information regarding the number of shares sold at each separate price.
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5)
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This transaction was executed pursuant to a Rule 10b5-1 trading plan, in multiple trades at prices ranging from $130.95 to $131.70 The reported price is the weighted average sale price. The reporting person undertakes to provide to the Company, any security holder of the Company, or Securities and Exchange Commission staff, upon request, complete information regarding the number of shares sold at each separate price.
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6)
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This transaction was executed pursuant to a Rule 10b5-1 trading plan, in multiple trades at prices ranging from $132.25 to $133.18 The reported price is the weighted average sale price. The reporting person undertakes to provide to the Company, any security holder of the Company, or Securities and Exchange Commission staff, upon request, complete information regarding the number of shares sold at each separate price.
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7)
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This transaction was executed pursuant to a Rule 10b5-1 trading plan, in multiple trades at prices ranging from $133.55 to $134.53 The reported price is the weighted average sale price. The reporting person undertakes to provide to the Company, any security holder of the Company, or Securities and Exchange Commission staff, upon request, complete information regarding the number of shares sold at each separate price.
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8)
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This transaction was executed pursuant to a Rule 10b5-1 trading plan, in multiple trades at prices ranging from $134.63 to $134.65 The reported price is the weighted average sale price. The reporting person undertakes to provide to the Company, any security holder of the Company, or Securities and Exchange Commission staff, upon request, complete information regarding the number of shares sold at each separate price.
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9)
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Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.
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10)
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This November 1, 2013 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2014.
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11)
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If the reporting person continues to serve as an officer of the Company on the vest date, the corresponding number of shares of Common Stock
of F5 Networks, Inc. will be issued to the reporting person on the vest date.
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12)
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This November 3, 2014 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2015.
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13)
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This November 2, 2015 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2016.
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14)
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This November 1, 2016 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2017.
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