Sec Form 4 Filing - Starzak Alissa Michelle @ Cloudflare, Inc. - 2026-05-11

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 Starzak Alissa Michelle 2. Issuer Name and Ticker or Trading Symbol Cloudflare, Inc. [ NET] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Legal Officer (Last) (First) (Middle) C/O CLOUDFLARE, INC, 900 19TH STREET NW, SUITE 375 3. Date of Earliest Transaction (MM/DD/YY) 05/11/2026 (Street) WASHINGTON, DC20026 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 Option (right to buy) $ 193.52 05/11/2026 A 128,000 ( 1 ) 05/10/2036 Class A Common Stock 128,000 $ 0 128,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Starzak Alissa Michelle C/O CLOUDFLARE, INC 900 19TH STREET NW, SUITE 375 WASHINGTON, DC20026 Chief Legal Officer Signatures /s/ Charlotte Bowe, by power of attorney 05/12/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The shares subject to the Performance Stock Option are comprised of four separate tranches that become eligible to vest upon achievement of certain stock price targets (the "Stock Price Goals") ranging from $263.00 - $579.00 at any time within ten years of May 11, 2026. The Performance Stock Options are subject to "continued eligible service" through the date the applicable Stock Price Goal is determined to have been achieved. In addition to satisfaction of the Stock Price Goals, the Performance Stock Options are subject to additional, time-based vesting requirements, under which 1/6 of the total shares subject to the Performance Stock Options vest and become exercisable on each Quarterly Vesting Date following the Certification Date, subject to continued eligible service through each vesting date. The time-based vesting requirements are waived upon a change in control of the Company.

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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