Form 4 Tracker
Cloudflare, Inc.
NET

93 insider filings · Latest: Oct 5, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Aug 18, 2026Aug 18 8:03 PMALISSA M STARZAK
Proposed Sale
2,538$304.68$773.3K—

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Aug 17, 2026Aug 17 8:45 PMALISSA M STARZAK
Proposed Sale
3,333$310.15$1.0M—

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Aug 17, 2026Aug 17 8:33 PMTHOMAS SEIFERT
Proposed Sale
10,000$315.78$3.2M—

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Aug 10, 2026Aug 11 9:03 PMJohn Graham-CummingDirector
Sale
2,520$303.97$766.0K494,909(D)

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Aug 4, 2026Aug 6 11:03 PMThomas J SeifertChief Financial Officer
Sale
55,000$300.30$16.5M113,790(D)

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Aug 6, 2026Aug 6 9:23 PMCarl LedbetterDirector
Sale
5,000$281.98$1.4M883,073(I)

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Aug 5, 2026Aug 5 11:47 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
33,631$296.10$10.0M0(I)

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Aug 5, 2026Aug 5 11:46 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
18,752$296.10$5.6M0(I)

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Aug 4, 2026Aug 5 11:46 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
32,282$298.44$9.6M0(I)

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Aug 4, 2026Aug 5 11:25 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
20,101$296.89$6.0M32,282(I)

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Aug 3, 2026Aug 5 11:24 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
52,383$283.42$14.8M0(I)

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Aug 3, 2026Aug 4 8:44 PMMark J HawkinsDirector
Sale
133$277.74$36.9K10,632(D)

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Aug 4, 2026Aug 4 8:36 PMTHOMAS SEIFERT
Proposed Sale
55,000$282.74$15.6M—

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Aug 3, 2026Aug 3 8:03 PMMARK HAWKINS
Proposed Sale
133$277.74$36.9K—

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Jul 17, 2026Jul 17 11:01 PMThomas J SeifertChief Financial Officer
Sale
10,000$276.92$2.8M113,790(D)

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Jul 17, 2026Jul 17 8:19 PMTHOMAS SEIFERT
Proposed Sale
10,000$272.46$2.7M—

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Jul 15, 2026Jul 15 10:59 PMMichelle ZatlynDirector, President and Board Co-Chair
Sale
33,003$286.48$9.5M47,425(I)

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Jul 14, 2026Jul 15 10:59 PMMichelle ZatlynDirector, President and Board Co-Chair
Sale
33,003$278.09$9.2M47,425(I)

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Jul 13, 2026Jul 15 10:59 PMMichelle ZatlynDirector, President and Board Co-Chair
Sale
33,058$265.79$8.8M47,425(I)

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Jul 13, 2026Jul 13 8:57 PMMichelle Zatlyn
Proposed Sale
297,082$269.53$80.1M—

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
May 22, 2026May 27 10:34 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
25,641—25,641(D)

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May 22, 2026May 27 10:34 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
25,641$2.041,415,377(D)

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May 22, 2026May 27 10:34 PMMichelle ZatlynDirector, President and Board Co-Chair
Conversion
25,641—0(D)

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May 21, 2026May 21 10:38 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Conversion
52,384—4,427,769(I)

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May 20, 2026May 21 10:38 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Conversion
52,384—4,480,153(I)

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May 19, 2026May 21 10:38 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Conversion
52,384—4,532,537(I)

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May 18, 2026May 19 9:55 PMThomas J SeifertChief Financial Officer
Option Exercise
10,000$2.0440,000(D)

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May 18, 2026May 19 9:55 PMThomas J SeifertChief Financial Officer
Conversion
10,000—8,925(D)

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May 18, 2026May 19 9:55 PMThomas J SeifertChief Financial Officer
Option Exercise
10,000—18,925(D)

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May 15, 2026May 19 9:51 PMJanel RileyChief Accounting Officer
Option Exercise
3,333$67.7973,335(D)

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May 11, 2026May 12 8:38 PMAlissa Michelle StarzakChief Legal Officer
Grant/Award
128,000$193.52128,000(D)

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May 4, 2026May 5 10:17 PMJohn Graham-CummingDirector
Option Exercise
2,520$44.727,560(D)

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Apr 22, 2026Apr 22 11:55 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
25,641—25,641(D)

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Apr 22, 2026Apr 22 11:55 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
25,641$2.041,441,018(D)

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Apr 22, 2026Apr 22 11:55 PMMichelle ZatlynDirector, President and Board Co-Chair
Conversion
25,641—0(D)

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Apr 21, 2026Apr 22 11:55 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
25,641—25,641(D)

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Apr 21, 2026Apr 22 11:55 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
25,641$2.041,466,659(D)

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Apr 21, 2026Apr 22 11:55 PMMichelle ZatlynDirector, President and Board Co-Chair
Conversion
25,641—0(D)

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Apr 20, 2026Apr 22 11:55 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
25,641$2.041,492,300(D)

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Apr 20, 2026Apr 22 11:55 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
25,641—25,641(D)

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