IANNACONE NICOLE M 4

4 · ENTERPRISE FINANCIAL SERVICES CORP · Filed Feb 26, 2026

AI-generated summary of this filing

Updated Feb 26, 2026

EFSC CLO Nicole Iannacone Converts RSUs; 1,466 Shares Withheld

What Happened

Nicole M. Iannacone, Senior EVP and Chief Legal Officer of Enterprise Financial Services Corp (EFSC), had 3,326 restricted stock units (RSUs) convert to common shares on Feb 24, 2026 (reported on a Form 4 filed Feb 26, 2026). Of those 3,326 shares, 1,466 were withheld to satisfy tax withholding at $57.57 per share, totaling $84,398. The net shares delivered to Iannacone were 1,860.
This was a conversion/vesting of RSUs (derivative conversion), not an open-market purchase or voluntary sale — withholding to cover taxes is routine.

Key Details

Transaction date: 2026-02-24; Form 4 filed: 2026-02-26 (appears timely).
Conversion: 3,326 RSUs converted to common stock (transaction code M).
Withholding: 1,466 shares withheld for tax obligations at $57.57/share = $84,398 (transaction code F; footnote F1).
Net shares received: 1,860 shares (3,326 − 1,466).
Relevant footnotes: F1 (share withholding to satisfy tax obligation); F4/F7 describe the RSU grant and vesting schedule (RSUs granted under 2018 plan; certain RSUs vest in installments including Feb 24, 2026).
Shares owned after the transaction: not specified in the data provided in this summary.

Context

This was a routine equity compensation vesting/conversion event. The withholding of shares to cover taxes is common and does not represent an additional open-market sale or purchase by the insider.
Transaction code M indicates conversion/exercise of a derivative (here, RSUs converting into shares); code F indicates shares withheld to satisfy tax withholding.

Form 4

Period: 2026-02-24

SEVP, Chief Legal Officer

Transactions

Exercise/Conversion
Common Stock
2026-02-24+3,326→ 24,321 total
Tax Payment
Common Stock
[F1]
2026-02-24$57.57/sh−1,466$84,398→ 22,855 total
Exercise/Conversion
Restricted Share Units
[F4][F7]
2026-02-24−3,326→ 3,326 total
→ Common Stock (3,326 underlying)

Holdings

Non Qualified Stock Option (Right to Buy)
Exercise: $43.81From: 2024-02-06Exp: 2031-02-25→ Common Stock (4,521 underlying)
4,521
Non Qualified Stock Option (Right to Buy)
Exercise: $48.34From: 2025-02-03Exp: 2032-02-24→ Common Stock (4,946 underlying)
4,946
Non Qualified Stock Option (Right to Buy)
Exercise: $54.46From: 2026-02-10Exp: 2033-02-28→ Common Stock (4,985 underlying)
4,985
Non Qualified Stock Option (Right to Buy)
[F2]
Exercise: $39.50Exp: 2034-02-28→ Common Stock (7,551 underlying)
7,551
Non Qualified Stock Option (Right to Buy)
[F3]
Exercise: $57.17Exp: 2035-03-04→ Common Stock (3,976 underlying)
3,976
Restricted Share Units
[F4][F5]
→ Common Stock (1,443 underlying)
1,443
Restricted Share Units
[F4][F6]
→ Common Stock (1,330 underlying)
1,330

Footnotes (7)

[F1]Withholding of stock to satisfy tax withholding obligation on issuance of common stock.
[F2]This option becomes exercisable in the first quarter of 2027, subject to continued employment by the reporting person.
[F3]The option becomes exercisable in the first quarter of 2028, subject to continued employment by the reporting person.
[F4]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.
[F5]The RSU's vest 100% in the first quarter of 2027, subject to continued employment by the reporting person.
[F6]The RSU's vest 100% in the first quarter of 2028, subject to continued employment by the reporting person.
[F7]The RSUs vest over six years in one-third installments on each of February 24, 2024, February 24, 2026, and February 24, 2028. Vesting is subject to continued employment of the reporting person. On each vesting date, for each RSU vesting on such date, the reporting person will receive one share of Common Stock.

Signature

/s/ Nicole M. Iannacone|2026-02-26

1 file