DUMLAO TROY 4

What Happened Troy Dumlao, EVP and Chief Accounting Officer of Enterprise Financial Services Corp. (EFSC), acquired 462 shares of EFSC common stock on June 30, 2026, at a reported price of $45.94 per share, for a total of $21,224. The shares were purchased through the company’s 2018 Employee Stock Purchase Plan (ESPP) and the transaction is listed as an other acquisition (code J) on the Form 4.

Key Details

• Transaction date and price: June 30, 2026 — 462 shares at $45.94 each; total ~$21,224.
• Method: Shares purchased under the 2018 ESPP; reporting was voluntary and the transaction is exempt under Section 16b-3(c) (footnote F1).
• ESPP pricing: Shares were acquired based on 85% of the closing price on January 2, 2026 (footnote F2), indicating a 15% discount/lookback feature.
• Shares owned after transaction: Not specified in the Form 4 filing.
• Filing date: Form filed July 8, 2026 (8 days after the June 30 acquisition). The filing does not state any late-report designation.

Context Purchases through an ESPP are routine compensation-related acquisitions that typically use payroll deductions and an offered discount (here, 15% via the 85% lookback). Such ESPP purchases are generally considered compensation fulfillment rather than open-market investment timing and are exempt from short-swing trading recovery under Section 16b-3(c), as noted in the filing.