Form 4 Tracker
Cloudflare, Inc.
NET

93 insider filings · Latest: Oct 5, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jun 15, 2026Jun 16 9:15 PMJohn Graham-CummingDirector
Sale
2,520$235.95$594.6K494,067(D)

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Jun 8, 2026Jun 8 9:21 PMKatrin SuderDirector
Sale
293$252.92$74.1K37,430(D)

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Jun 8, 2026Jun 8 8:05 PMKATRIN SUSANNE SUDER
Proposed Sale
293$252.92$74.1K—

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Jun 1, 2026Jun 2 8:12 PMMark J HawkinsDirector
Sale
133$246.42$32.8K10,056(D)

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Jun 1, 2026Jun 2 8:10 PMCarl LedbetterDirector
Sale
15,000$246.06$3.7M893,073(I)

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May 28, 2026Jun 1 11:15 PMAlissa Michelle StarzakChief Legal Officer
Sale
16,243$216.15$3.5M118,395(D)

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Jun 1, 2026Jun 1 8:03 PMMARK HAWKINS
Proposed Sale
133$246.42$32.8K—

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May 28, 2026May 28 8:02 PMALISSA M STARZAK
Proposed Sale
16,243$216.15$3.5M—

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May 27, 2026May 27 10:34 PMMichelle ZatlynDirector, President and Board Co-Chair
Sale
25,641$210.30$5.4M47,425(I)

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May 26, 2026May 27 10:34 PMMichelle ZatlynDirector, President and Board Co-Chair
Sale
25,641$211.83$5.4M47,425(I)

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May 22, 2026May 27 10:34 PMMichelle ZatlynDirector, President and Board Co-Chair
Sale
35,080$213.98$7.5M47,425(I)

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May 26, 2026May 26 8:08 PMDOUGLAS KRAMER
Proposed Sale
18,000$218.51$3.9M—

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May 22, 2026May 22 9:32 PMMichelle Zatlyn
Proposed Sale
163,285$216.17$35.3M—

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May 21, 2026May 21 10:38 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
52,384$210.66$11.0M25,550(I)

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May 20, 2026May 21 10:38 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
52,384$207.65$10.9M25,550(I)

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May 19, 2026May 21 10:38 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Sale
52,384$204.15$10.7M25,550(I)

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May 18, 2026May 19 9:55 PMThomas J SeifertChief Financial Officer
Sale
10,000$200.61$2.0M212,014(D)

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May 18, 2026May 19 9:51 PMJanel RileyChief Accounting Officer
Sale
3,481$193.32$672.9K49,163(D)

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May 15, 2026May 19 9:51 PMJanel RileyChief Accounting Officer
Sale
3,333$196.95$656.4K52,644(D)

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May 18, 2026May 18 9:26 PMDOUGLAS KRAMER
Proposed Sale
6,000$201.19$1.2M—

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Sep 3, 2026Sep 9 12:54 AMMichelle ZatlynDirector, PRESIDENT & BOARD CO-CHAIR
Conversion
33,003—0(D)

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Aug 21, 2026Aug 21 9:28 PMMichelle ZatlynDirector, President and Board Co-Chair
Conversion
33,003—0(D)

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Aug 21, 2026Aug 21 9:28 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
33,003—33,003(D)

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Aug 21, 2026Aug 21 9:28 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
33,003$2.041,089,099(D)

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Aug 20, 2026Aug 21 9:28 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
33,003$2.041,122,102(D)

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Aug 20, 2026Aug 21 9:28 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
33,003—33,003(D)

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Aug 20, 2026Aug 21 9:28 PMMichelle ZatlynDirector, President and Board Co-Chair
Conversion
33,003—0(D)

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Aug 19, 2026Aug 21 9:28 PMMichelle ZatlynDirector, President and Board Co-Chair
Conversion
33,003—0(D)

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Aug 19, 2026Aug 21 9:28 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
33,003—33,003(D)

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Aug 19, 2026Aug 21 9:28 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
33,003$2.041,155,105(D)

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Aug 17, 2026Aug 19 9:42 PMAlissa Michelle StarzakChief Legal Officer
Option Exercise
3,333$77.7086,666(D)

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Aug 17, 2026Aug 19 9:37 PMJanel RileyChief Accounting Officer
Option Exercise
1,667$67.7971,668(D)

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Aug 17, 2026Aug 19 9:35 PMThomas J SeifertChief Financial Officer
Option Exercise
10,000—18,925(D)

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Aug 17, 2026Aug 19 9:35 PMThomas J SeifertChief Financial Officer
Option Exercise
10,000$2.0410,000(D)

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Aug 17, 2026Aug 19 9:35 PMThomas J SeifertChief Financial Officer
Conversion
10,000—8,925(D)

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Aug 10, 2026Aug 11 9:03 PMJohn Graham-CummingDirector
Option Exercise
2,520$44.720(D)

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Aug 4, 2026Aug 6 11:03 PMThomas J SeifertChief Financial Officer
Option Exercise
55,000$44.72500,000(D)

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Aug 5, 2026Aug 5 11:46 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Conversion
52,383—2,750,039(I)

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Aug 4, 2026Aug 5 11:25 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Conversion
52,383—2,783,670(I)

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Aug 3, 2026Aug 5 11:24 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Conversion
52,383—2,817,301(I)

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