ITEM SECOND IRR. TRUST FBO KYLE R. WESTPHAL u/a of JEFFREY R. WESTPHAL dated October 5, 2001 sold VERX

March 9, 2026 · Form 4 insider transaction

ITEM SECOND IRR. TRUST FBO KYLE R. WESTPHAL u/a of JEFFREY R. WESTPHAL dated October 5, 2001 sold 10,000 shares of Vertex, Inc. at $15.05 per share, a transaction worth $150.5K. The trade was recorded as open-market purchase and disclosed on an SEC Form 4, filed 0 days after the transaction.

Direction

Disposed (sell-side)

10,000

Price

$15.05

Total value

$150.5K

InsiderITEM SECOND IRR. TRUST FBO KYLE R. WESTPHAL u/a of JEFFREY R. WESTPHAL dated October 5, 2001

Role—

CompanyVertex, Inc. (VERX)

SecurityClass A Common Stock

Transaction codeP: Open-market purchase

Transaction dateMarch 9, 2026

Filing dateMarch 9, 2026

Shares owned after1,221,100

OwnershipDirect

10b5-1 planNo

AmendedNo

Footnotes

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $15.02 to $15.06. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

View the original Form 4 on SEC EDGAR