WESTPHAL JEFFREY sold 575K shares of VERTEX, INC. on the open market

Open‑market sale worth $30.48M. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

WESTPHAL JEFFREY

Filed: 12/16/2024ACC: 0001104659-24-129064

InsiderWESTPHAL JEFFREYCIK 1818851

→

IssuerVERTEX, INC.CIK 1806837

Director10% Owner

Since Jul 2020

-575K

Net shares

Net seller

$30.48M

Total sold

Open market trades

0B · 1S

Total transactions

575K acquired · 1.15M disposed

Non-Derivative Transactions2

Class A Common Stock

Indirect

C · Conversion

+575K

Price / share

—

Trade value

—

% of position

New position

12/12/2024

0.00→575K

Class A Common Stock

Indirect

S · Sale

−575K

Price / share

$53.01

Trade value

$30.48M

% of position

New position

12/12/2024

575K→0.00

Total

Net shares

+0.00

Net value

-$30.48M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Indirect	12/12/2024	C · Conversion	+575K	—	—	New position	0.00	575K
Class A Common Stock Indirect	12/12/2024	S · Sale	−575K	$53.01	$30.48M	New position	575K	0.00
Total			+0.00		-$30.48M

Derivative Transactions1

Class B Common Stock

Indirect

C · Conversion

Converts to

Class A Common Stock

575K shares

−575K

Strike price

Held after

2.64M

Exercisable

—

12/12/2024

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Class B Common Stock Indirect	Class A Common Stock575K shares	12/12/2024	C · Conversion	−575K		—	2.64M

Non-Derivative Holdings (Post-Transaction)1

Class A Common Stock

Direct

Shares owned7.89K

Total

7.89K direct7.89K

Security Title	Shares Owned	Ownership Type
Class A Common Stock	7.89K	Direct
Total	7.89K	7.89K direct

Derivative Holdings (Post-Transaction)3

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

332.24K

Shares owned

332.24K

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Direct

Underlying security

Class A Common Stock

Underlying shares

838K

Shares owned

838K

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

1.15M

Shares owned

1.15M

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

2.32M

Owned

2.32M

Security	Underlying	Exercise Window	Expiration	Underlying Shares	Shares Owned
Class B Common Stock Indirect	Class A Common Stock	—	—	332.24K	332.24K
Class B Common Stock Direct	Class A Common Stock	—	—	838K	838K
Class B Common Stock Indirect	Class A Common Stock	—	—	1.15M	1.15M
Total				2.32M	2.32M