ITEM SECOND IRR. TRUST FBO KYLE R. WESTPHAL u/a of JEFFREY R. WESTPHAL dated October 5, 2001 4

What Happened

• The Second Irrevocable Trust for the benefit of Kyle R. Westphal (u/a of Jeffrey R. Westphal dated Oct 5, 2001), a reported 10% owner, executed an open-market purchase (code P) of 10,000 shares of Vertex, Inc. (VERX) on 2026-03-09.
• The reported weighted-average price was $15.05 per share, for a total reported value of approximately $150,477. This was a purchase (accumulation) rather than a sale.

Key Details

• Transaction date: 2026-03-09. Transaction code: P (purchase).
• Shares purchased: 10,000. Weighted-average price: $15.05. Total value: ~$150,477.
• Footnote: The $15.05 is a weighted average; actual trade prices ranged $15.02–$15.06. The reporting person will provide a transaction-by-transaction breakdown on request (Footnote F1).
• Shares owned after the transaction: not disclosed in the provided summary of the filing.
• Filing timeliness: Report lists the same transaction and report date (2026-03-09); no late filing flag indicated.

Context

• This filing was made by a 10% owner trust (institutional/large holder), not an executive or board member; such purchases reflect the trust's buying activity rather than a corporate insider's compensation or option exercise.
• Purchases can be interpreted as accumulation but do not, by themselves, explain motives; retail investors should consider this alongside other filings and company fundamentals.