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Cloudflare, Inc.

Thomas J Seifert (Chief Financial Officer) sells NET shares

4NETFiled Oct 19, 2026, 7:04 PM ET· Period Oct 15, 2026

AI-generated summary

Chief Financial Officer Thomas J Seifert had a tax withholding of 2,944 shares at an average price of $316.32 valued at $931,246.08, exercised 12,500 shares at an average price of $44.72 valued at $559,000, and sold 12,500 shares at an average price of $299.59 valued at $3,744,827.22. Following these transactions, the insider directly held 104,958 shares. The sales were executed under a Rule 10b5-1 trading plan adopted on November 20, 2025.

View original filing on SEC.gov (opens SEC EDGAR)

Key facts

Insider
Thomas J Seifert · Chief Financial Officer

Rule 10b5-1 plan · adopted Nov 20, 2025

DateTransactionSharesPriceValueHeld afterOwnership
Oct 15, 2026F · tax withholdingFootnotes F1−2,944$316.32$931,246.08104,958Direct
Oct 19, 2026M · exercise or conversion of a derivative+12,500$44.72$559,000.00117,458Direct
Oct 19, 2026S · open-market saleFootnotes F2, F3−1,100$297.29$327,021.09116,358Direct
Oct 19, 2026S · open-market saleFootnotes F2, F4−3,401$298.32$1,014,590.40112,957Direct
Oct 19, 2026S · open-market saleFootnotes F2, F5−3,756$299.36$1,124,379.26109,201Direct
Oct 19, 2026S · open-market saleFootnotes F2, F6−2,643$300.39$793,934.47106,558Direct
Oct 19, 2026S · open-market saleFootnotes F2, F7−598$301.99$180,592.59105,960Direct
Oct 19, 2026S · open-market saleFootnotes F2, F8−502$303.26$152,234.41105,458Direct
Oct 19, 2026S · open-market saleFootnotes F2, F9−500$304.15$152,075.00104,958Direct
Oct 19, 2026M · exercise or conversion of a derivativePerformance Stock Option (right to buy)Footnotes F11−12,500$0.00$0.00487,500Direct
Footnotes
  1. F1 The shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs.
  2. F2 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.
  3. F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $296.84 to $297.75, 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 (3) through (9) to this Form 4.
  4. F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $297.90 to $298.85, inclusive.
  5. F5 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $298.93 to $299.92, inclusive.
  6. F6 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $299.93 to $300.91, inclusive.
  7. F7 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $301.55 to $302.29, inclusive.
  8. F8 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $302.57 to $303.56, inclusive.
  9. F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $303.91 to $304.48, inclusive.
  10. F10 The shares are held of record by the 2026 Seifert Grantor Retained Annuity Trust dated May 27, 2026, for which the reporting person serves as trustee.
  11. F11 The shares subject to the Performance Stock Option are comprised of nine separate tranches that become eligible to vest upon achievement of certain stock price targets (the "Stock Price Goals"). Upon satisfaction of a 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 Stock Price Goal for such tranche. As of the date of this report, six of the nine stock price goals have been satisfied and the underlying shares vest as set forth above. The remaining three tranches, representing 277,500 shares subject to the Performance Stock Option, become eligible to vest upon achievement of the applicable Stock Price Goal.

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Not investment advice. Summaries can contain errors; the SEC filing is the official record.