ENTERPRISE FINANCIAL SERVICES CORP·4

Jul 8, 3:52 PM ET

DUMLAO TROY 4

4 · ENTERPRISE FINANCIAL SERVICES CORP · Filed Jul 8, 2026

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Enterprise Financial (EFSC) EVP Troy Dumlao Buys 462 Shares

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.

Insider Transaction Report

Form 4
Period: 2026-06-30
DUMLAO TROY
EVP, Chief Accounting Officer
Transactions
  • Other

    Common Stock

    [F1][F2]
    2026-06-30$45.94/sh+462$21,2248,935 total
Holdings
  • Depository Shares

    [F3]
    400
  • Non Qualified Stock Option (Right to Buy)

    Exercise: $43.81From: 2024-02-06Exp: 2031-02-25Common Stock (1,058 underlying)
    1,058
  • Non Qualified Stock Option (Right to Buy)

    Exercise: $48.34From: 2025-02-03Exp: 2032-02-24Common Stock (1,266 underlying)
    1,266
  • Non Qualified Stock Option (Right to Buy)

    Exercise: $54.46From: 2026-02-10Exp: 2033-02-28Common Stock (1,769 underlying)
    1,769
  • Non Qualified Stock Option (Right to Buy)

    [F4]
    Exercise: $39.50Exp: 2034-02-28Common Stock (2,722 underlying)
    2,722
  • Non Qualified Stock Option (Right to Buy)

    [F5]
    Exercise: $57.17Exp: 2035-03-04Common Stock (1,919 underlying)
    1,919
  • Restricted Share Units

    [F6][F7]
    Common Stock (520 underlying)
    520
  • Restricted Share Units

    [F6][F8]
    Common Stock (642 underlying)
    642
  • Restricted Share Units

    [F6][F9]
    Common Stock (836 underlying)
    836
Footnotes (9)
  • [F1]The reporting person is voluntarily reporting the acquisition of shares of the Issuer's common stock pursuant to the Issuer's 2018 Employee Stock Purchase Plan ("ESPP") for the ESPP purchase period of January 1, 2026, through June 30, 2026. This transaction is exempt under Section 16b-3(c).
  • [F2]In accordance with the terms of the ESPP, the reported shares were acquired based on 85% of the closing price of the Issuer's common stock on January 2, 2026.
  • [F3]Each Depositary Share represents a 1/40th interest in a share of the Issuer's 5.00% Series A Fixed-Rate Non-Cumulative Perpetual Preferred Stock. Depositary Shares were purchased in an underwritten public offering.
  • [F4]This option becomes exercisable in the first quarter of 2027, subject to continued employment by the reporting person.
  • [F5]The option becomes exercisable in the first quarter of 2028, subject to continued employment by the reporting person.
  • [F6]The RSU's were granted pursuant to the Company's 2018 Stock Incentive Plan. Each RSU represents the right to receive one share of Common Stock, subject to adjustment as provided in the Grant Agreement.
  • [F7]The RSU's vest 100% in the first quarter of 2027, subject to continued employment by the reporting person.
  • [F8]The RSU's vest 100% in the first quarter of 2028, subject to continued employment by the reporting person.
  • [F9]The RSU's vest 100% in the first quarter of 2029, subject to continued employment by the reporting person.
Signature
/s/ Troy Dumlao|2026-07-08

Documents

1 file
  • 4
    form4.xmlPrimary

    PRIMARY DOCUMENT