Sec Form 4 Filing - rahim rami @ JUNIPER NETWORKS INC - 2024-02-14

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) 02/14/2024 (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

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 Performance Stock Unit $ 0 02/14/2024 A 153,224 ( 1 ) 02/16/2024( 1 ) Common Stock 153,224 $ 0 ( 2 ) 238,402 D Performance Stock Unit $ 0 02/14/2024 A 25,168 ( 3 ) 02/21/2025( 3 ) Common Stock 25,168 $ 0 ( 2 ) 55,403 D Performance Stock Unit $ 0 02/14/2024 A 27,336 ( 4 ) 02/20/2026( 4 ) Common Stock 27,336 $ 0 ( 2 ) 27,336 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/ Colin Lloyd, as attorney-in-fact For: Rami Rahim 02/16/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents (i) one tranche of the performance award and (ii) the total stockholder return tranche of the 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. The tranches will vest on 2/16/2024 subject to the reporting person's service through the settlement date. ( 2 )Column 8 is not an applicable reportable field. ( 3 )Represents one tranche of an award granted in the first quarter of 2022. 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 2025 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. ( 4 )Represents one tranche of an award granted in the first quarter of 2023. 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 2026 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.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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