FFIV

SEC source: 0001209191-17-047446 · doc4.xml · derivative · entry 3

Gibson Benjamin · CIK 0001681007 · EVP, Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,222

Underlying: Common Stock · 7,073 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F4 · derivative.exercise_date: Twenty five percent (25%) of this August 1, 2016 award of service-based Restricted Stock Units vests on August 1, 2017 and the remaining seventy five percent (75%) vests in twelve equal quarterly increments beginning November 1,2017.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-047446 · doc4.xml · nonDerivative · entry 1

Gibson Benjamin · CIK 0001681007 · EVP, Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,073

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares acquired upon vesting of the August 1, 2016 award of service-based Restricted Stock Units.

SEC source: 0001209191-17-047442 · doc4.xml · derivative · entry 6

EAMES EDWARD JULIAN · CIK 0001132089 · EVP, Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,008

Underlying: Common Stock · 616 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F8 · derivative.exercise_date: This November 1, 2016 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2017.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-047442 · doc4.xml · derivative · entry 5

EAMES EDWARD JULIAN · CIK 0001132089 · EVP, Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,864

Underlying: Common Stock · 762 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F7 · derivative.exercise_date: This November 2, 2015 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2016.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-047442 · doc4.xml · derivative · entry 4

EAMES EDWARD JULIAN · CIK 0001132089 · EVP, Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,304

Underlying: Common Stock · 661 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F6 · derivative.exercise_date: This November 3, 2014 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2015.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-047442 · doc4.xml · derivative · entry 3

EAMES EDWARD JULIAN · CIK 0001132089 · EVP, Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 947

Underlying: Common Stock · 947 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F4 · derivative.exercise_date: This November 1, 2013 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2014.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-047442 · doc4.xml · nonDerivative · entry 2

EAMES EDWARD JULIAN · CIK 0001132089 · EVP, Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,710

F2 · price: This transaction was executed pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001209191-17-047442 · doc4.xml · nonDerivative · entry 1

EAMES EDWARD JULIAN · CIK 0001132089 · EVP, Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,088

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: 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.

SEC source: 0001209191-17-047440 · doc4.xml · derivative · entry 5

DiLullo John D · CIK 0001346345 · EVP, Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,008

Underlying: Common Stock · 616 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F7 · derivative.exercise_date: This November 1, 2016 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2017.

F6 · derivative.expiration_date: 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.

SEC source: 0001209191-17-047440 · doc4.xml · derivative · entry 4

DiLullo John D · CIK 0001346345 · EVP, Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,877

Underlying: Common Stock · 2,542 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F5 · derivative.exercise_date: This November 2, 2015 award of service-based Restricted Stock Units vests twenty five percent (25%) on November 1, 2016, and the remaining seventy five percent (75%) vests in twelve equal quarterly increments beginning February 1, 2017.

F6 · derivative.expiration_date: 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.

SEC source: 0001209191-17-047440 · doc4.xml · nonDerivative · entry 2

DiLullo John D · CIK 0001346345 · EVP, Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,791

F2 · price: This transaction was executed pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001209191-17-047440 · doc4.xml · nonDerivative · entry 1

DiLullo John D · CIK 0001346345 · EVP, Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,255

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Shares acquired upon vesting of the November 2, 2015 and November 1, 2016 awards of service-based Restricted Stock Units.

SEC source: 0001209191-17-046895 · doc4.xml · nonDerivative · entry 1

Rogers Scot Frazier · CIK 0001588334 · EVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,654

F1 · shares: Shares acquired based on performance targets for the November 3, 2014, May 1, 2015, November 2, 2015 and November 1, 2016 awards of Restricted Stock Units.

F2 · balance_after: Since the filing of the last Form 4, a total of 5,685 shares were transferred by Mr. Rogers to his former spouse pursuant to a domestic relations order. Mr. Rogers no longer reports as beneficially owned any securities owned by his former spouse.

SEC source: 0001209191-17-046894 · doc4.xml · nonDerivative · entry 1

Reinland Andrew · CIK 0001342165 · EVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,615

F1 · shares: Shares acquired based on performance targets for the November 1, 2013, November 3, 2014, November 2, 2015 and November 1, 2016 awards of Restricted Stock Units.

SEC source: 0001209191-17-046893 · doc4.xml · nonDerivative · entry 1

Locoh-Donou Francois · CIK 0001526624 · Director · President, CEO & Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,287

F1 · shares: Shares acquired based on performance targets for the May 1, 2017 award of Restricted Stock Units.

SEC source: 0001209191-17-046892 · doc4.xml · nonDerivative · entry 1

Kearny Ryan C. · CIK 0001684581 · CTO& EVP, Product & Technology

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,298

F1 · shares: Shares acquired based on performance targets for the November 1, 2016 award of Restricted Stock Units.

SEC source: 0001209191-17-046891 · doc4.xml · nonDerivative · entry 1

EAMES EDWARD JULIAN · CIK 0001132089 · EVP, Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,102

F1 · shares: Shares acquired based on performance targets for the November 1, 2013, November 3, 2014, November 2, 2015 and November 1, 2016 awards of Restricted Stock Units.

SEC source: 0001209191-17-046889 · doc4.xml · nonDerivative · entry 1

DiLullo John D · CIK 0001346345 · EVP, Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,097

F1 · shares: Shares acquired based on performance targets for the November 1, 2016 award of Restricted Stock Units.

F2 · balance_after: Includes 183 shares acquired on April 28, 2017 under the F5 Networks, Inc. stock purchase plan.

SEC source: 0001209191-17-031838 · doc4.xml · nonDerivative · entry 1

MCADAM JOHN · CIK 0001186031 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,953

F1 · price: This transaction was executed pursuant to a Rule 10b5-1 trading plan, in multiple trades at prices ranging from $130.00. to $130.59. 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.

SEC source: 0001209191-17-029583 · doc4.xml · nonDerivative · entry 4

Reinland Andrew · CIK 0001342165 · EVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,766

F4 · price: This transaction was executed pursuant to a Rule 10b5-1 trading plan, in multiple trades at prices ranging from $127.05 to $127.55. 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.

SEC source: 0001209191-17-029583 · doc4.xml · nonDerivative · entry 3

Reinland Andrew · CIK 0001342165 · EVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,450

F3 · price: This transaction was executed pursuant to a Rule 10b5-1 trading plan, in multiple trades at prices ranging from $126.04 to $126.99. 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.

SEC source: 0001209191-17-029571 · doc4.xml · nonDerivative · entry 2

DiLullo John D · CIK 0001346345 · EVP, Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,326

F2 · price: This transaction was executed pursuant to a Rule 10b5-1 trading plan, in multiple trades at prices ranging from $126.15 to $126.1548. 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.

SEC source: 0001209191-17-029075 · doc4.xml · derivative · entry 7

Rogers Scot Frazier · CIK 0001588334 · EVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,028

Underlying: Common Stock · 502 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F9 · derivative.exercise_date: This November 1, 2016 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2017.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029075 · doc4.xml · derivative · entry 6

Rogers Scot Frazier · CIK 0001588334 · EVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,649

Underlying: Common Stock · 565 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F8 · derivative.exercise_date: This November 2, 2015 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2016.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029075 · doc4.xml · derivative · entry 5

Rogers Scot Frazier · CIK 0001588334 · EVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,639

Underlying: Common Stock · 205 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F7 · derivative.exercise_date: This May 1, 2015 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning August 1, 2015.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029075 · doc4.xml · derivative · entry 4

Rogers Scot Frazier · CIK 0001588334 · EVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,525

Underlying: Common Stock · 254 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F6 · derivative.exercise_date: This November 3, 2014 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2015.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029075 · doc4.xml · derivative · entry 3

Rogers Scot Frazier · CIK 0001588334 · EVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,189

Underlying: Common Stock · 298 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F4 · derivative.exercise_date: Twenty five percent (25%) of the May 1, 2014 award of service-based Restricted Stock Units vested on May 1, 2015, and the remaining seventy five percent (75%) vest in twelve equal quarterly increments beginning August 1, 2015.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029075 · doc4.xml · nonDerivative · entry 2

Rogers Scot Frazier · CIK 0001588334 · EVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,285

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: Shares acquired upon vesting of the May 1, 2014, November 3, 2014, May 1, 2015, November 2, 2015, and November 1, 2016 awards of service-based Restricted Stock Units.

SEC source: 0001209191-17-029073 · doc4.xml · derivative · entry 4

Kearny Ryan C. · CIK 0001684581 · CTO& EVP, Product & Technology

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,792

Underlying: Common Stock · 342 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F6 · derivative.exercise_date: This November 1, 2016 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2017.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029073 · doc4.xml · derivative · entry 3

Kearny Ryan C. · CIK 0001684581 · CTO& EVP, Product & Technology

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,017

Underlying: Common Stock · 509 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F4 · derivative.exercise_date: The service-based Restricted Stock Units outstanding under this 11/02/2015 grant vest as follows: 508 vest 11/01/2016, 508 vest 02/01/2017, 509 vest 05/01/2017, 508 vest 08/01/2017, and 509 vest 11/01/2017.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029073 · doc4.xml · nonDerivative · entry 2

Kearny Ryan C. · CIK 0001684581 · CTO& EVP, Product & Technology

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,817

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: Shares acquired upon vesting of the November 2, 2015 and November 1, 2016 awards of service-based Restricted Stock Units.

SEC source: 0001209191-17-029074 · doc4.xml · derivative · entry 7

Reinland Andrew · CIK 0001342165 · EVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,624

Underlying: Common Stock · 616 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F8 · derivative.exercise_date: This November 1, 2016 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2017.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029074 · doc4.xml · derivative · entry 6

Reinland Andrew · CIK 0001342165 · EVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,626

Underlying: Common Stock · 763 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F7 · derivative.exercise_date: This November 2, 2015 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2016.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029074 · doc4.xml · derivative · entry 5

Reinland Andrew · CIK 0001342165 · EVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,965

Underlying: Common Stock · 660 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F6 · derivative.exercise_date: This November 3, 2014 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2015.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029074 · doc4.xml · derivative · entry 4

Reinland Andrew · CIK 0001342165 · EVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,894

Underlying: Common Stock · 947 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F4 · derivative.exercise_date: This November 1, 2013 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2014.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029074 · doc4.xml · nonDerivative · entry 2

Reinland Andrew · CIK 0001342165 · EVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,001

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: 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.

SEC source: 0001209191-17-029072 · doc4.xml · derivative · entry 6

EAMES EDWARD JULIAN · CIK 0001132089 · EVP, Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,624

Underlying: Common Stock · 616 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F8 · derivative.exercise_date: This November 1, 2016 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2017.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029072 · doc4.xml · derivative · entry 5

EAMES EDWARD JULIAN · CIK 0001132089 · EVP, Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,626

Underlying: Common Stock · 763 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F7 · derivative.exercise_date: This November 2, 2015 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2016.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029072 · doc4.xml · derivative · entry 4

EAMES EDWARD JULIAN · CIK 0001132089 · EVP, Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,965

Underlying: Common Stock · 660 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F6 · derivative.exercise_date: This November 3, 2014 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2015.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029072 · doc4.xml · derivative · entry 3

EAMES EDWARD JULIAN · CIK 0001132089 · EVP, Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,894

Underlying: Common Stock · 947 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F4 · derivative.exercise_date: This November 1, 2013 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2014.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029072 · doc4.xml · nonDerivative · entry 2

EAMES EDWARD JULIAN · CIK 0001132089 · EVP, Chief Operations Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,716

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: 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.

SEC source: 0001209191-17-029071 · doc4.xml · derivative · entry 4

DiLullo John D · CIK 0001346345 · EVP, Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,624

Underlying: Common Stock · 616 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F6 · derivative.exercise_date: This November 1, 2016 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2017.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029071 · doc4.xml · derivative · entry 3

DiLullo John D · CIK 0001346345 · EVP, Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,419

Underlying: Common Stock · 2,542 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F4 · derivative.exercise_date: This November 2, 2015 award of service-based Restricted Stock Units vests twenty five percent (25%) on November 1, 2016, and the remaining seventy five percent (75%) vests in twelve equal quarterly increments beginning February 1, 2017.

F5 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029071 · doc4.xml · nonDerivative · entry 2

DiLullo John D · CIK 0001346345 · EVP, Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,746

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: Shares acquired upon vesting of the November 2, 2015 and November 1, 2016 awards of service-based Restricted Stock Units.

SEC source: 0001209191-17-029583 · doc4.xml · derivative · entry 6

Reinland Andrew · CIK 0001342165 · EVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,850

Underlying: Common Stock · 7,850 shares

Expires not disclosed

F5 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F6 · derivative.exercise_date: This May 1, 2017 award of service-based Restricted Stock Units vests 100% on May 1, 2018.

F7 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029583 · doc4.xml · nonDerivative · entry 2

Reinland Andrew · CIK 0001342165 · EVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,502

F2 · price: This transaction was executed pursuant to a Rule 10b5-1 trading plan.

SEC source: 0001209191-17-029583 · doc4.xml · nonDerivative · entry 1

Reinland Andrew · CIK 0001342165 · EVP, Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,602

F1 · price: This transaction was executed pursuant to a Rule 10b5-1 trading plan, in multiple trades at prices ranging from $127.29 to $128.19. 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.

SEC source: 0001209191-17-029581 · doc4.xml · derivative · entry 3

Locoh-Donou Francois · CIK 0001526624 · Director · President, CEO & Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,850

Underlying: Common Stock · 7,850 shares

Expires not disclosed

F1 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F6 · derivative.exercise_date: Twenty five percent (25%) of this May 1, 2017 award of service-based Restricted Stock Units vests on May 1, 2018 and the remaining seventy five percent (75%) vests in twelve equal quarterly increments beginning August 1, 2018.

F4 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029581 · doc4.xml · derivative · entry 2

Locoh-Donou Francois · CIK 0001526624 · Director · President, CEO & Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,212

Underlying: Common Stock · 45,212 shares

Expires not disclosed

F1 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F5 · derivative.exercise_date: Thirty-three and one third percent (33 1/3%) of this May 1, 2017 award of service-based Restricted Stock Units vests on May 1, 2018 and the remaining sixty-six and two thirds percent (66 2/3%) vests in eight equal quarterly increments beginning August 1, 2018.

F4 · derivative.expiration_date: 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.

SEC source: 0001209191-17-029581 · doc4.xml · derivative · entry 1

Locoh-Donou Francois · CIK 0001526624 · Director · President, CEO & Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,586

Underlying: Common Stock · 21,586 shares

Expires not disclosed

F1 · security: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F2 · shares: Concurrent with the award of service-based Restricted Stock Units, the Company granted the reporting person additional Restricted Stock Units that vest based on performance targets ("Performance RSUs"). If the performance targets are achieved at 100%, the reporting person will receive 21,586 Performance RSUs over the vesting period; the actual number of Performance RSUs received may be more or less depending on whether and to the extent that performance is greater than or less than targets. Performance RSUs are not reported in Table II; the underlying shares of Performance RSUs will be reported in Table I if and when the Compensation Committee of the Board of Directors determines that the performance targets have been achieved.

F3 · derivative.exercise_date: This May 1, 2017 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning August 1, 2017.

F4 · derivative.expiration_date: 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.