SEIFERT THOMAS J (Chief Financial Officer) sold 8.1% of their position (10K shares) of CLOUDFLARE, INC. on the open market

Open‑market sale worth $2.77M — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 10 sales

SEIFERT THOMAS J

Filed: 7/17/2026ACC: 0001473289-26-000018

InsiderSEIFERT THOMAS JCIK 1473289

→

IssuerCLOUDFLARE, INC.CIK 1477333

Officer· Chief Financial Officer

Since Sep 2019

-12.94K

Net shares

Net seller

$3.60M

Total sold

Open market trades

0B · 10S

Total transactions

20K acquired · 32.94K disposed

Non-Derivative Transactions12

Class A Common Stock

Direct

F · Tax Withholding

−2.94K

Price / share

$281.75

Trade value

$829.19K

% of position

2.5%

7/15/2026

116.73K→113.79K

Class A Common Stock

Direct

C · Conversion

+10K

Price / share

—

Trade value

—

% of position

8.8%

7/17/2026

113.79K→123.79K

Class A Common Stock

Direct

S · Sale

−200.00

Price / share

$266.19

Trade value

$53.24K

% of position

0.2%

7/17/2026

123.79K→123.59K

Class A Common Stock

Direct

S · Sale

−100.00

Price / share

$267.76

Trade value

$26.78K

% of position

0.1%

7/17/2026

123.59K→123.49K

Class A Common Stock

Direct

S · Sale

−300.00

Price / share

$270.50

Trade value

$81.15K

% of position

0.2%

7/17/2026

123.49K→123.19K

Class A Common Stock

Direct

S · Sale

−500.00

Price / share

$274.60

Trade value

$137.30K

% of position

0.4%

7/17/2026

123.19K→122.69K

Class A Common Stock

Direct

S · Sale

−1.56K

Price / share

$275.79

Trade value

$429.95K

% of position

1.3%

7/17/2026

122.69K→121.13K

Class A Common Stock

Direct

S · Sale

−1.74K

Price / share

$276.63

Trade value

$481.62K

% of position

1.4%

7/17/2026

121.13K→119.39K

Class A Common Stock

Direct

S · Sale

−3.30K

Price / share

$277.68

Trade value

$916.06K

% of position

2.8%

7/17/2026

119.39K→116.09K

Class A Common Stock

Direct

S · Sale

−1.20K

Price / share

$278.76

Trade value

$334.79K

% of position

1.0%

7/17/2026

116.09K→114.89K

Class A Common Stock

Direct

S · Sale

−800.00

Price / share

$279.91

Trade value

$223.93K

% of position

0.7%

7/17/2026

114.89K→114.09K

Class A Common Stock

Direct

S · Sale

−300.00

Price / share

$281.29

Trade value

$84.39K

% of position

0.3%

7/17/2026

114.09K→113.79K

Total

Net shares

−2.94K

Net value

-$3.60M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Direct	7/15/2026	F · Tax Withholding	−2.94K	$281.75	$829.19K	2.5%	116.73K	113.79K
Class A Common Stock Direct	7/17/2026	C · Conversion	+10K	—	—	8.8%	113.79K	123.79K
Class A Common Stock Direct	7/17/2026	S · Sale	−200.00	$266.19	$53.24K	0.2%	123.79K	123.59K
Class A Common Stock Direct	7/17/2026	S · Sale	−100.00	$267.76	$26.78K	0.1%	123.59K	123.49K
Class A Common Stock Direct	7/17/2026	S · Sale	−300.00	$270.50	$81.15K	0.2%	123.49K	123.19K
Class A Common Stock Direct	7/17/2026	S · Sale	−500.00	$274.60	$137.30K	0.4%	123.19K	122.69K
Class A Common Stock Direct	7/17/2026	S · Sale	−1.56K	$275.79	$429.95K	1.3%	122.69K	121.13K
Class A Common Stock Direct	7/17/2026	S · Sale	−1.74K	$276.63	$481.62K	1.4%	121.13K	119.39K
Class A Common Stock Direct	7/17/2026	S · Sale	−3.30K	$277.68	$916.06K	2.8%	119.39K	116.09K
Class A Common Stock Direct	7/17/2026	S · Sale	−1.20K	$278.76	$334.79K	1.0%	116.09K	114.89K
Class A Common Stock Direct	7/17/2026	S · Sale	−800.00	$279.91	$223.93K	0.7%	114.89K	114.09K
Class A Common Stock Direct	7/17/2026	S · Sale	−300.00	$281.29	$84.39K	0.3%	114.09K	113.79K
Total			−2.94K		-$3.60M

Derivative Transactions3

Employee Stock Option (right to buy)

Direct

M · Option Exercise

Converts to

Class B Common Stock

10K shares

−10K

Strike price

2.04

Held after

20K

Exercisable

—

7/17/2026

Class B Common Stock

Direct

M · Option Exercise

Converts to

Class A Common Stock

10K shares

+10K

Strike price

Held after

18.93K

Exercisable

—

7/17/2026

Class B Common Stock

Direct

C · Conversion

Converts to

Class A Common Stock

10K shares

−10K

Strike price

Held after

8.93K

Exercisable

—

7/17/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Employee Stock Option (right to buy) Direct	Class B Common Stock10K shares	7/17/2026	M · Option Exercise	−10K	2.04	—	20K
Class B Common Stock Direct	Class A Common Stock10K shares	7/17/2026	M · Option Exercise	+10K		—	18.93K
Class B Common Stock Direct	Class A Common Stock10K shares	7/17/2026	C · Conversion	−10K		—	8.93K

Non-Derivative Holdings (Post-Transaction)1

Class A Common Stock

Indirect

Shares owned92.34K

Total

92.34K indirect92.34K

Security Title	Shares Owned	Ownership Type
Class A Common Stock	92.34K	Indirect
Total	92.34K	92.34K indirect

Derivative Holdings (Post-Transaction)4

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

46.10K

Shares owned

46.10K

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

46.10K

Shares owned

46.10K

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

150K

Shares owned

150K

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

46.10K

Shares owned

46.10K

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

288.30K

Owned

288.30K

Security	Underlying	Exercise Window	Expiration	Underlying Shares	Shares Owned
Class B Common Stock Indirect	Class A Common Stock	—	—	46.10K	46.10K
Class B Common Stock Indirect	Class A Common Stock	—	—	46.10K	46.10K
Class B Common Stock Indirect	Class A Common Stock	—	—	150K	150K
Class B Common Stock Indirect	Class A Common Stock	—	—	46.10K	46.10K
Total				288.30K	288.30K