Transaction · 0001473289-26-000023

SEIFERT THOMAS J

SEIFERT THOMAS J, CFO, reported a transaction classified as withholding at Cloudflare, Inc. involving 2944.000000 shares for an estimated $929656.32. Reported holdings after the transaction were 110846.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

withholdingSEC transaction code FCFO
NETCloudflare, Inc.
Filing timeAug 18
Trade dateAug 15, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$301.36
Pre-filing
1mo ago -9.6%1w ago -0.4%1d ago +4.8%
Returns since
7d -7.5%30d -5.3%90d -5.3%180d -5.3%1y -5.3%

NET price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
NET since 2026-08-18Filed 16 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
withholding
Code F
Identifier
0001473289-26-000023
Class A Common Stock
Transaction date
Aug 15, 2026
Filed Aug 18, 2026, 09:00 PM · 3d delay
Shares
2.94k sh
$31.5k per share
Estimated value
-$92.9M
Computed from shares × price
Holdings after
110k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership
-16score
Filing-only score

-16

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Financial Officer

Officer YesDirector No10% NoOther No
Footnotes & amended
  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 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.

Original filing · 0001473289-26-000023
Related transactions

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