Form 4 Tracker
Cloudflare, Inc.
NET

93 insider filings · Latest: Oct 5, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jun 4, 2025Jun 4 8:46 PMMichelle Zatlyn
Proposed Sale
153,847$170.92$26.3M—

View →

Jun 2, 2025Jun 2 8:29 PMDOUGLAS KRAMER
Proposed Sale
3,000$166.00$498.0K—

View →

May 20, 2025May 20 9:08 PMMichelle Zatlyn
Proposed Sale
86,378$157.42$13.6M—

View →

May 20, 2025May 20 8:28 PMTHOMAS J SEIFERT
Proposed Sale
41,556$157.52$6.5M—

View →

May 13, 2025May 13 9:13 PMMatthew Prince
Proposed Sale
157,152$150.36$23.6M—

View →

Apr 25, 2025Apr 25 8:24 PMTHOMAS J SEIFERT
Proposed Sale
10,000$118.87$1.2M—

View →

Apr 1, 2025Apr 1 8:09 PMDOUGLAS KRAMER
Proposed Sale
9,000$112.83$1.0M—

View →

Mar 20, 2025Mar 20 8:20 PMTHOMAS J SEIFERT
Proposed Sale
10,000$117.58$1.2M—

View →

Mar 5, 2025Mar 5 9:22 PMTHOMAS J SEIFERT
Proposed Sale
15,000$140.93$2.1M—

View →

Mar 5, 2025Mar 5 9:06 PMDOUGLAS KRAMER
Proposed Sale
3,000$140.06$420.2K—

View →

Feb 25, 2025Feb 25 10:29 PMMatthew Prince
Proposed Sale
471,456$143.14$67.5M—

View →

Feb 25, 2025Feb 25 9:09 PMKATRIN SUSANNE SUDER
Proposed Sale
9,941$145.82$1.4M—

View →

Feb 19, 2025Feb 19 9:52 PMMichelle Zatlyn
Proposed Sale
240,219$160.59$38.6M—

View →

Feb 19, 2025Feb 19 9:30 PMTHOMAS J SEIFERT
Proposed Sale
28,635$168.81$4.8M—

View →

Feb 3, 2025Feb 3 9:18 PMTHOMAS J SEIFERT
Proposed Sale
15,000$138.40$2.1M—

View →

Feb 3, 2025Feb 3 9:07 PMDOUGLAS KRAMER
Proposed Sale
2,481$131.66$326.6K—

View →

Jan 21, 2025Jan 21 9:22 PMTHOMAS J SEIFERT
Proposed Sale
31,136$117.16$3.6M—

View →

Jan 17, 2025Jan 17 9:19 PMTHOMAS J SEIFERT
Proposed Sale
33,864$114.82$3.9M—

View →

Jan 3, 2025Jan 3 9:18 PMTHOMAS J SEIFERT
Proposed Sale
15,000$112.54$1.7M—

View →

Jan 2, 2025Jan 2 9:05 PMDOUGLAS KRAMER
Proposed Sale
9,000$112.45$1.0M—

View →

Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jul 17, 2026Jul 17 11:01 PMThomas J SeifertChief Financial Officer
Option Exercise
10,000—18,925(D)

View →

Jul 17, 2026Jul 17 11:01 PMThomas J SeifertChief Financial Officer
Conversion
10,000—8,925(D)

View →

Jul 17, 2026Jul 17 11:01 PMThomas J SeifertChief Financial Officer
Option Exercise
10,000$2.0420,000(D)

View →

Jul 15, 2026Jul 15 10:59 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
33,003—33,003(D)

View →

Jul 15, 2026Jul 15 10:59 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
33,003$2.041,188,108(D)

View →

Jul 15, 2026Jul 15 10:59 PMMichelle ZatlynDirector, President and Board Co-Chair
Conversion
33,003—0(D)

View →

Jul 14, 2026Jul 15 10:59 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
33,003—33,003(D)

View →

Jul 14, 2026Jul 15 10:59 PMMichelle ZatlynDirector, President and Board Co-Chair
Conversion
33,003—0(D)

View →

Jul 14, 2026Jul 15 10:59 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
33,003$2.041,221,111(D)

View →

Jul 13, 2026Jul 15 10:59 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
33,058$2.041,254,114(D)

View →

Jul 13, 2026Jul 15 10:59 PMMichelle ZatlynDirector, President and Board Co-Chair
Conversion
33,058—0(D)

View →

Jul 13, 2026Jul 15 10:59 PMMichelle ZatlynDirector, President and Board Co-Chair
Option Exercise
33,058—33,058(D)

View →

Jul 6, 2026Jul 7 10:38 PMJohn Graham-CummingDirector
Option Exercise
2,520$44.722,520(D)

View →

Jul 6, 2026Jul 6 11:01 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Conversion
52,383—2,850,932(I)

View →

Jul 2, 2026Jul 6 11:01 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Conversion
33,631—2,884,563(I)

View →

Jul 2, 2026Jul 6 11:00 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Conversion
18,752—4,258,628(I)

View →

Jul 1, 2026Jul 6 11:00 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Conversion
52,422—2,918,194(I)

View →

Jun 24, 2026Jun 24 11:40 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Conversion
52,384—4,296,167(I)

View →

Jun 23, 2026Jun 24 11:38 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Conversion
52,384—4,348,551(I)

View →

Jun 22, 2026Jun 24 11:38 PMMatthew PrinceDirector, CEO & Board Co-Chair, 10% Owner
Conversion
26,834—4,400,935(I)

View →