Sec Form 4 Filing - Leelanivas Manoj @ JUNIPER NETWORKS INC - 2025-07-02

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

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person Leelanivas Manoj 2. Issuer Name and Ticker or Trading Symbol JUNIPER NETWORKS INC [ JNPR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) EVP Chief Operating Officer (Last) (First) (Middle) 1133 INNOVATION WAY 3. Date of Earliest Transaction (MM/DD/YY) 07/02/2025 (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 07/02/2025 D 100,636 D 0 D

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 RSU Award $ 0 07/02/2025 D 135,269 ( 2 ) ( 3 ) Common Stock 135,269 $ 0 0 D Performance Stock Unit $ 0 07/02/2025 A 155,627 ( 4 ) ( 3 ) Common Stock 155,627 $ 0 194,940 D Performance Stock Unit $ 0 07/02/2025 D 194,940 ( 5 ) ( 3 ) Common Stock 194,940 ( 6 ) $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Leelanivas Manoj 1133 INNOVATION WAY SUNNYVALE, CA94089 EVP Chief Operating Officer Signatures By: /s/ Colin Lloyd, as attorney-in-fact For: Manoj Leelanivas 07/07/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Pursuant to an Agreement and Plan of Merger, dated as of January 9, 2024 (the "Merger Agreement"), entered into by and among Juniper Networks, Inc., a Delaware corporation (the "Issuer"), Hewlett Packard Enterprise Company, a Delaware corporation ("Parent"), and Jasmine Acquisition Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of Parent ("Merger Sub"), on July 2, 2025, in accordance with the Merger Agreement, Merger Sub merged with and into the Issuer, with the Issuer surviving such merger as a wholly-owned subsidiary of Parent (the "Merger"). In connection with the Merger, each outstanding share of Issuer common stock ("Share") was converted into the right to receive an amount equal to $40.00 per share in cash, without interest. ( 2 )Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time"), each unvested Issuer restricted stock unit ("RSU") award outstanding immediately prior to the Effective Time was converted into an RSU award to acquire the number of shares of common stock of Parent ("Parent Shares") (rounded to the nearest whole share), determined by multiplying (i) the number of Shares subject to the RSU award prior to the Effective Time by (ii) 2.1431 (the "Exchange Ratio"). Each such Parent RSU award continues to have, and is subject to, the same terms and conditions as applied to the corresponding Issuer RSU award immediately prior to the Effective Time. ( 3 )Not applicable. ( 4 )Represents performance stock units ("PSUs") for which performance was deemed achieved based on actual performance or assuming target performance at the Effective Time, but which remain subject to time-based vesting conditions. ( 5 )Pursuant to the Merger Agreement, at the Effective Time, each Issuer PSU award outstanding immediately prior to the Effective Time was converted into a PSU award to acquire the number of Parent Shares (rounded to the nearest whole share) determined by multiplying (i) the number of Shares subject to the PSU award prior to the Effective Time by (ii) the Exchange Ratio. Each such Parent PSU award continues to have, and is subject to, the same terms and conditions as applied to the corresponding Issuer PSU award immediately prior to the Effective Time, except that any such Parent PSU award is no longer subject to performance-based vesting. ( 6 )Includes Shares underlying PSUs described in footnote (4).

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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.