SEIFERT THOMAS J

PrivateCIK: 1473289
Location

SAN FRANCISCO, CA

SEIFERT THOMAS J (Chief Financial Officer) sold 10.6% of their position (12.50K shares) of CLOUDFLARE, INC. on the open market

Open‑market sale worth $3.74M — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 7 sales
InsiderSEIFERT THOMAS JCIK 1473289
→
IssuerCLOUDFLARE, INC.CIK 1477333
Officer· Chief Financial Officer
Since Sep 2019
-15.44K
Net shares
Net seller
$4.68M
Total sold
7
Open market trades
0B · 7S
10
Total transactions
12.50K acquired · 27.94K disposed
Non-Derivative Transactions9

Class A Common Stock

Direct
F · Tax Withholding

Shares

−2.94K

Price / share

$316.32

Trade value

$931.25K

% of position

2.7%
10/15/2026
107.90K→104.96K

Class A Common Stock

Direct
M · Option Exercise

Shares

+12.50K

Price / share

$44.72

Trade value

$559K

% of position

11.9%
10/19/2026
104.96K→117.46K

Class A Common Stock

Direct
S · Sale

Shares

−1.10K

Price / share

$297.29

Trade value

$327.02K

% of position

0.9%
10/19/2026
117.46K→116.36K

Class A Common Stock

Direct
S · Sale

Shares

−3.40K

Price / share

$298.32

Trade value

$1.01M

% of position

2.9%
10/19/2026
116.36K→112.96K

Class A Common Stock

Direct
S · Sale

Shares

−3.76K

Price / share

$299.36

Trade value

$1.12M

% of position

3.3%
10/19/2026
112.96K→109.20K

Class A Common Stock

Direct
S · Sale

Shares

−2.64K

Price / share

$300.39

Trade value

$793.93K

% of position

2.4%
10/19/2026
109.20K→106.56K

Class A Common Stock

Direct
S · Sale

Shares

−598.00

Price / share

$301.99

Trade value

$180.59K

% of position

0.6%
10/19/2026
106.56K→105.96K

Class A Common Stock

Direct
S · Sale

Shares

−502.00

Price / share

$303.26

Trade value

$152.23K

% of position

0.5%
10/19/2026
105.96K→105.46K

Class A Common Stock

Direct
S · Sale

Shares

−500.00

Price / share

$304.15

Trade value

$152.07K

% of position

0.5%
10/19/2026
105.46K→104.96K
Total

Net shares

−2.94K

Net value

-$4.12M

Derivative Transactions1

Performance Stock Option (right to buy)

Direct
M · Option Exercise
Converts to

Class A Common Stock

12.50K shares

Shares

−12.50K

Strike price

44.72

Held after

487.50K

Exercisable

—

10/19/2026
Non-Derivative Holdings (Post-Transaction)1

Class A Common Stock

Indirect
Shares owned92.34K
Total
92.34K indirect92.34K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
SEIFERT THOMAS J — Insider Transaction (Form 4) Filed Oct 19, 2026 | Finecho