Sec Form 3 Filing - Starzak Alissa Michelle @ Cloudflare, Inc. - 2026-04-01

FORM 3 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) 04/01/2026 (Street) WASHINGTON, DC20006 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 Class A Common Stock 64,997 ( 1 ) 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 Employee Stock Option (right to buy) $ 2.74 ( 2 ) 04/18/2028 Class B Common Stock 29,167 D Performance Stock Option (right to buy) $ 77.7 ( 3 )( 4 ) 08/04/2034 Class A Common Stock 100,000 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, DC20006 Chief Legal Officer Signatures /s/ Charlotte Bowe, by power of attorney 04/10/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Includes 31,558 shares represented by restricted stock units, or RSUs, which vest as follows: (i) 1,851 RSUs vest in three equal quarterly installments beginning on May 15, 2026; (ii) 6,728 RSUs vest in three equal quarterly installments beginning on May 15, 2026; (iii) 3,885 RSUs vest in seven equal quarterly installments beginning on May 15, 2026; (iv) 16,740 RSUs vest in 11 equal quarterly installments beginning on May 15, 2026 and (v) 2,534 RSUs vest in 15 equal quarterly installments beginning on May 15, 2026. ( 2 )Shares subject to the option are fully vested and immediately exercisable. ( 3 )The Performance Stock Option ("PSO") is comprised of seven separate tranches that become eligible to vest upon achievement of certain stock price targets (the "2024 Stock Price Goals") at any time between August 5, 2024 and August 4, 2034. Upon satisfaction of a 2024 Stock Price Goal, 1/6 of the shares subject to the applicable tranche vests and becomes exercisable on each Issuer quarterly vesting date (2/15, 5/15, 8/15 or 11/15) occurring on or after the date of certification of achievement of the applicable 2024 Stock Price Goal for such tranche. Prior to the date on which the reporting person became subject to Section 16, three tranches became eligible to vest upon achievement of certain stock price targets. The remaining four tranches become eligible to vest upon achievement of certain stock price targets ranging from $263.00 to $579.00. ( 4 )The PSO is subject to the reporting person's continued status as a Service Provider through each vesting date. The time-based vesting requirements are waived upon a change in control of the Issuer.

Remarks: Exhibit 24 - Power of Attorney

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).

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