LALLY JAMES BRIAN 4

What Happened

• James B. Lally, CEO and Director of Enterprise Financial Services Corp. (EFSC), recorded an acquisition on 2026-03-04 of 6,344 derivative units reported at $0.00 each (total reported value $0). The filing classifies this as an award/acquisition (Form 4 code A) and the units are derivative interests rather than an open-market purchase of common stock.
• Footnote in the filing indicates these securities are represented by units held in a unitized stock fund through the company’s 401(k) plan, where the fund consists of varying amounts of cash and common stock.

Key Details

• Transaction date: 2026-03-04; Form 4 filed: 2026-03-06 (filed within the typical two-business-day window).
• Security: derivative units in a unitized stock fund (reported as 6,344 units at $0.00 each).
• Shares owned after transaction: not disclosed in the provided excerpt.
• Relevant footnote: F1 — units are held in the Company’s 401(k) unitized stock fund (composition of cash vs. stock varies over time).
• Other footnotes in the filing (F3–F9) relate to vested/unvested options and RSUs and do not appear to describe this particular 401(k) allocation.

Context

• This was an allocation into a 401(k) unitized stock fund (not an open-market buy or sale, and not an option exercise). Such plan allocations are often payroll or plan-directed and typically do not indicate a trading view by the insider. The filing appears timely and routine based on the provided dates.