Form 4 Tracker
Cloudflare, Inc.
NET

93 insider filings · Latest: Oct 5, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Mar 27, 2026Mar 30 10:37 PMJohn Graham-CummingDirector
Sale
3,644$202.31$737.2K494,067(D)

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Mar 27, 2026Mar 27 8:26 PMJohn Graham-Cumming
Proposed Sale
8,684$203.02$1.8M—

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Mar 18, 2026Mar 20 8:47 PMCarl LedbetterDirector
Sale
15,000$227.05$3.4M938,073(I)

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Mar 18, 2026Mar 18 11:31 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
13,618$227.80$3.1M0(I)

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Mar 18, 2026Mar 18 11:29 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
38,766$218.87$8.5M13,618(I)

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Mar 17, 2026Mar 18 11:29 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
52,384$212.25$11.1M0(I)

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Mar 16, 2026Mar 18 11:29 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
52,384$209.08$11.0M0(I)

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Mar 17, 2026Mar 17 11:27 PMThomas J SeifertChief Financial Officer
Sale
10,341$212.30$2.2M224,625(D)

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Mar 17, 2026Mar 17 8:38 PMTHOMAS SEIFERT
Proposed Sale
10,341$207.33$2.1M—

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Mar 16, 2026Mar 16 9:35 PMMatthew Prince
Proposed Sale
471,456$207.33$97.7M—

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Mar 5, 2026Mar 6 10:47 PMJanel RileyChief Accounting Officer
Sale
23,332$190.00$4.4M56,791(D)

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Mar 5, 2026Mar 6 12:18 AMMichelle ZatlynDirector, President and Board Co-Chair
Sale
25,641$189.50$4.9M34,514(I)

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Mar 4, 2026Mar 6 12:18 AMMichelle ZatlynDirector, President and Board Co-Chair
Sale
25,641$179.63$4.6M34,514(I)

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Mar 3, 2026Mar 6 12:18 AMMichelle ZatlynDirector, President and Board Co-Chair
Sale
25,641$174.61$4.5M34,514(I)

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Mar 3, 2026Mar 4 9:10 PMJanel RileyCHIEF ACCOUNTING OFFICER
Sale
4,160$180.00$748.8K56,791(D)

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Mar 2, 2026Mar 3 9:44 PMMark J HawkinsDirector
Sale
133$168.62$22.4K10,455(D)

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Mar 2, 2026Mar 3 9:42 PMJohn Graham-CummingDirector
Sale
2,520$178.24$449.2K495,191(D)

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Mar 2, 2026Mar 2 9:05 PMMARK HAWKINS
Proposed Sale
133$168.62$22.4K—

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Feb 26, 2026Feb 27 2:04 AMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
52,384$173.78$9.1M22,911(I)

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Feb 25, 2026Feb 27 2:04 AMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
52,384$169.09$8.9M22,911(I)

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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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