Sec Form 4 Filing - rahim rami @ JUNIPER NETWORKS INC - 2022-02-18

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person rahim rami 2. Issuer Name and Ticker or Trading Symbol JUNIPER NETWORKS INC [ JNPR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Executive Officer (Last) (First) (Middle) 1133 INNOVATION WAY 3. Date of Earliest Transaction (MM/DD/YY) 02/18/2022 (Street) SUNNYVALE, CA94089 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 02/18/2022 M( 1 ) 131,874 A $ 0 131,874 D Common Stock 02/18/2022 F( 2 ) 68,114 D $ 34.32 63,760 D Common Stock 02/19/2022 M 64,158 A $ 0 127,918 D Common Stock 02/21/2022 F( 2 ) 33,138 D $ 34.32 94,780 D Common Stock 02/21/2022 M 57,918 A $ 0 152,698 D Common Stock 02/21/2022 F( 2 ) 29,948 D $ 34.32 122,750 D Common Stock 02/21/2022 G( 3 ) 122,750 D $ 0 0 D Common Stock 02/21/2022 G( 3 ) 122,750 A $ 0 842,148 I Living Trust

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Non-Qualified Stock Option (right to buy) $ 34.32 02/18/2022 A 275,219 ( 4 ) 02/18/2029( 4 ) Common Stock 275,219 $ 0( 5 ) 275,219 D Performance Stock Unit $ 0 02/18/2022 A 79,687 ( 6 ) 02/18/2022( 6 ) Common Stock 79,687 $ 0( 5 ) 131,874 D Performance Stock Unit $ 0 02/18/2022 M( 1 ) 131,874 02/18/2022( 1 ) 02/18/2022( 1 ) Common Stock 131,874 $ 0( 5 ) 0 D Performance Stock Unit $ 0 02/18/2022 A 46,384 ( 7 ) 02/17/2023( 7 ) Common Stock 46,384 $ 0( 5 ) 77,659 D Performance Stock Unit $ 0 02/18/2022 A 49,816 ( 8 ) 02/16/2024( 8 ) Common Stock 49,816 $ 0( 5 ) 49,816 D RSU Award $ 0 02/21/2022 M 57,918 ( 9 ) 02/21/2023( 9 ) Common Stock 57,918 $ 0( 5 ) 58,044 D RSU Award $ 0 02/19/2022 M 64,158 ( 9 ) 02/19/2024( 9 ) Common Stock 64,158 $ 0( 5 ) 124,542 D RSU Award $ 0 02/18/2022 A 161,338 ( 9 ) 02/18/2025( 9 ) Common Stock 161,338 $ 0( 5 ) 161,338 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other rahim rami 1133 INNOVATION WAY SUNNYVALE, CA94089 X Chief Executive Officer Signatures By: /s/Dena Acevedo, as attorney-in-fact For: Rami Rahim 02/23/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents the number of shares earned and vested under the previously reported performance award granted on 03/15/2019. The shares vested in full on 2/18/2022 following determination by the Compensation Committee of the achievement of the final performance targets over the three-year performance period, upon the satisfaction of a continued service condition through the settlement date. ( 2 )Represents shares withheld from the performance share award for the payment of applicable income and payroll withholding taxes due on settlement. ( 3 )Represents the transfer of shares to the Rahim Family Trust from the reporting person immediately upon vesting. ( 4 )These options have a 7 year contractual term, with a strike price equal to the closing price of the Company's stock on 2/18/22, and vest from the original grant date as to thirty-four percent on the one-year anniversary of the grant date and thirty-three percent annually on the second anniversary and third anniversary of the grant date ( 5 )Column 8 is not an applicable reportable field. ( 6 )Represents (i) one tranche of the performance award and (ii) the total stockholder return tranche of the award granted on 3/15/2019. The amount earned was subject to attainment of certain performance conditions and certification thereof by the Compensation Committee. These tranches vested on 2/18/2022 as described in footnote (1). ( 7 )Represents one tranche of an award granted in the first quarter of 2020. The amount earned was subject to attainment of certain performance conditions and certification thereof by the Compensation Committee. This tranche will vest in the first quarter of 2024 following certification by the Compensation Committee of the final tranche of the award, subject to the reporting person's service through the date of such certification and the settlement date. ( 8 )Represents one tranche of an award granted in the first quarter of 2021. The amount earned was subject to attainment of certain performance conditions and certification thereof by the Compensation Committee. This tranche will vest in the first quarter of 2024 following certification by the Compensation Committee of the final tranche of the award, subject to the reporting person's service through the date of such certification and the settlement date. ( 9 )This awards vests from the original grant date as to thirty-four percent on the one year anniversary of the grant date and thirty-three percent annually on the second anniversary and third anniversary.

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