Thomas J. Seifert - 15 Mar 2026 Form 4 Insider Report for Cloudflare, Inc. (NET)

Role
Chief Financial Officer
Signature
/s/ Chad Skinner, by power of attorney
Issuer symbol
NET
Transactions as of
15 Mar 2026
Net transactions value
-$2,195,442
Form type
4
Filing time
17 Mar 2026, 19:27:07 UTC
Previous filing
24 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
SEIFERT THOMAS J Chief Financial Officer C/O CLOUDFLARE, INC., 405 COMAL STREET, AUSTIN /s/ Chad Skinner, by power of attorney 17 Mar 2026 0001473289

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NET Class A Common Stock Tax liability -2,943 -1.3% $212.45* 224,625 15 Mar 2026 Direct F1
transaction NET Class A Common Stock Conversion of derivative security +10,341 +4.6% 234,966 17 Mar 2026 Direct F2
transaction NET Class A Common Stock Sale $41,536 -200 -0.09% $207.68 234,766 17 Mar 2026 Direct F3, F4
transaction NET Class A Common Stock Sale $20,864 -100 -0.04% $208.64 234,666 17 Mar 2026 Direct F3
transaction NET Class A Common Stock Sale $643,746 -3,041 -1.3% $211.69 231,625 17 Mar 2026 Direct F3, F5
transaction NET Class A Common Stock Sale $1,062,831 -5,000 -2.2% $212.57 226,625 17 Mar 2026 Direct F3, F6
transaction NET Class A Common Stock Sale $426,465 -2,000 -0.88% $213.23 224,625 17 Mar 2026 Direct F3, F7

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction NET Employee Stock Option (right to buy) Options Exercise -10,341 -15% $0.000000* 60,000 17 Mar 2026 Class B Common Stock 10,341 $2.04 Direct F2, F8
transaction NET Class B Common Stock Options Exercise +10,341 +116% $0.000000* 19,266 17 Mar 2026 Class A Common Stock 10,341 Direct F2
transaction NET Class B Common Stock Conversion of derivative security -10,341 -54% $0.000000* 8,925 17 Mar 2026 Class A Common Stock 10,341 Direct F2
holding NET Class B Common Stock 150,000 15 Mar 2026 Class A Common Stock 150,000 See footnote F2, F9
holding NET Class B Common Stock 46,100 15 Mar 2026 Class A Common Stock 46,100 See footnote F2, F10
holding NET Class B Common Stock 46,100 15 Mar 2026 Class A Common Stock 46,100 See footnote F2, F11
holding NET Class B Common Stock 46,100 15 Mar 2026 Class A Common Stock 46,100 See footnote F2, F12
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs.
F2 Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.
F3 The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2025.
F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $207.32 to $208.04, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (4) through (7) to this Form 4.
F5 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $211.02 to $212.00, inclusive.
F6 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $212.03 to $213.02, inclusive.
F7 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $213.03 to $213.80, inclusive.
F8 Shares subject to the option are fully vested and immediately exercisable.
F9 The shares are held of record by Center Court Partners Ltd., for which the reporting person serves as a partner.
F10 The shares are held of record by Center Court 2020 Trust 1 UA 12/11/20, for which the reporting person serves as trustee.
F11 The shares are held of record by Center Court 2020 Trust 2 UA 12/11/20, for which the reporting person serves as trustee.
F12 The shares are held of record by Center Court 2020 Trust 3 UA 12/11/20, for which the reporting person serves as trustee.