First Business Financial Services, Inc. Form 4 Filings

FIRST BUSINESS FINANCIAL SERVICES, INC. (FBIZ) director Ferris Scott M. reported a grant of 575 shares of common stock on August 16, 2026, classified as a grant, award, or other acquisition at a stated price of $0.00 per share. Following this award, he holds 575 shares directly and an additional 200 shares indirectly through a trust.

FIRST BUSINESS FINANCIAL SERVICES Chief Risk Officer Laura M. Garcia reported a tax-withholding disposition of 194 shares of Common Stock at $53.81 per share. The shares were used to satisfy tax obligations rather than sold in the open market. Garcia directly holds 4,648 shares after this transaction.

FIRST BUSINESS FINANCIAL SERVICES, INC. Chief Accounting Officer Kevin D. Crampton reported a tax-withholding disposition of 54 shares of Common Stock at $53.81 per share. These shares were delivered to cover tax obligations, not sold on the open market. After this transaction, he directly holds 2,347 shares.

FIRST BUSINESS FINANCIAL SERVICES, INC. director Daniel P. Olszewski received a grant of 710 shares of Common Stock on May 16, 2026 at no cash cost, characterized as a grant or award acquisition. Following this award, he directly holds 27,405 shares. A footnote states that an additional 23,150 shares are held by the Kathryn J. Olszewski 2021 GST Trust.

FIRST BUSINESS FINANCIAL SERVICES, INC. director William Kent Lorenz reported a stock-based compensation grant of 710 shares of common stock at no cost, classified as a grant, award, or other acquisition. Following this award, he directly holds 9,671 common shares.

Separately, he indirectly owns 8,178 common shares through his spouse’s IRA. A footnote explains that his reported holdings include 2,896 shares in a revocable living trust for him and his spouse and 2,520 shares held in his own IRA, in addition to other directly reported shares.

FIRST BUSINESS FINANCIAL SERVICES, INC. director Gerald L. Kilcoyne reported receiving a grant of 710 shares of common stock on May 16, 2026, at a stated price of $0.0000 per share, classified as a grant, award, or other acquisition.

After this grant, Kilcoyne directly owns 66,691 shares of common stock. According to a footnote, 50,636 of these shares are held by the Gerald L. Kilcoyne and Kelley D. Kilcoyne Joint Revocable Trust, and 11,800 shares are held in his Roth IRA.

Graham Jason R reported acquisition or exercise transactions in this Form 4 filing.

FIRST BUSINESS FINANCIAL SERVICES, INC. director Jason R. Graham received a grant of 710 shares of Common Stock, recorded at a price of $0.00 per share as a compensation-related award. Following this grant, he directly holds 3,930 shares. The filing notes that 1,600 additional shares are held in his IRA and 1,000 shares are held by the Graham Living Trust dated August 7, 2009.

CHAVARRIA CARLA C reported acquisition or exercise transactions in this Form 4 filing.

FIRST BUSINESS FINANCIAL SERVICES, INC. director Carla C. Chavarria received a stock award of 710 shares of Common Stock on May 16, 2026. The award was recorded at a price of $0.00 per share, reflecting equity compensation rather than an open-market purchase.

After this grant, Chavarria directly owns a total of 8,446 shares, including 4,191 shares held by The Carla Sanders Revocable Trust dated August 2, 2018. This filing mainly updates her reported ownership and does not indicate any share sales.

CHAMBAS COREY A reported acquisition or exercise transactions in this Form 4 filing.

FIRST BUSINESS FINANCIAL SERVICES, INC. director Corey A. Chambas received a grant of 710 shares of common stock on May 16, 2026 at $0.00 per share as compensation. Following this award, he directly holds 122,790 common shares and indirectly holds 16,992 shares through a 401(k) plan.

Benson Laurie S. reported acquisition or exercise transactions in this Form 4 filing.

FIRST BUSINESS FINANCIAL SERVICES, INC. director Laurie S. Benson reported receiving a grant of 710 shares of Common Stock on May 16, 2026 at no cash cost. Following this award, Benson directly or indirectly holds a total of 8,681 shares, including 4,426 shares held in an IRA.

Seiler David R. reported acquisition or exercise transactions in this Form 4 filing.

FIRST BUSINESS FINANCIAL SERVICES, INC. President and CEO David R. Seiler received a grant of 3,815 shares of common stock on May 16, 2026, at no cash cost per share. After this award, he directly owns 41,187 shares. A footnote states that 27,031 shares are held by the David & Lisa Seiler Revocable Trust.

FIRST BUSINESS FINANCIAL SERVICES, INC. CFO Brian D. Spielmann received 3,190 shares of Common Stock on 2026-04-10 from the vesting of Performance Restricted Stock Unit awards for the 2023–2025 performance period. To cover tax obligations, 1,501 shares were withheld at $58.60 per share, leaving him with 7,311 directly owned shares.

First Business Financial Services President and COO David R. Seiler reported routine equity compensation activity. On the vesting of Performance Restricted Stock Unit awards for the 2023-2025 period, he received 4,780 shares of Common Stock. To cover tax obligations, 1,912 shares were withheld at $58.60 per share. Following these transactions, he directly holds 37,372 shares, and 27,031 additional shares are held by the David & Lisa Seiler Revocable Trust.

FIRST BUSINESS FINANCIAL SERVICES, INC. Chief Credit Officer Bradley A. Quade reported a share-based compensation event. On the transaction date, he acquired 2,740 shares of Common Stock at no cost through the vesting of Performance Restricted Stock Unit awards for the 2023-2025 performance period.

To cover related tax obligations, 1,096 shares of Common Stock were disposed of at $58.60 per share through a tax-withholding mechanism rather than an open-market sale. After these transactions, Quade directly owns 16,582 shares of Common Stock.

FIRST BUSINESS FINANCIAL SERVICES, INC. Chief Information Officer Daniel Ovokaitys received a grant of 2,430 shares of Common Stock at no cost upon vesting of Performance Restricted Stock Unit awards for the 2023–2025 performance period. To cover tax obligations, 1,143 shares were disposed of through a tax-withholding transaction at $58.60 per share. After these compensation-related entries, he directly holds 10,668 shares of Common Stock.

FIRST BUSINESS FINANCIAL SERVICES, INC. executive James Edward Hartlieb, President & CEO of First Business Bank, reported several routine equity compensation-related transactions in Common Stock. He received 2,730 shares at $0.00 per share as an award upon vesting of Performance Restricted Stock Units for the 2023-2025 period.

On the same date, 1,039 shares were disposed of at $58.60 per share to cover tax obligations, and 127 shares were transferred as a bona fide gift. After these transactions, he directly owned 31,636.874 shares of Common Stock.

FIRST BUSINESS FINANCIAL SERVICES, INC. Chief Risk Officer Laura M. Garcia reported routine equity compensation activity in company common stock. She received a grant of 2,500 shares at no cost upon vesting of Performance Restricted Stock Unit awards for the 2023–2025 performance period. To cover tax obligations, 1,108 shares were disposed of through a tax-withholding mechanism at a value of $58.60 per share, leaving her with 4,842 shares held directly after these transactions.

FIRST BUSINESS FINANCIAL SERVICES, INC. Chief Human Resources Officer Jodi A. Chandler received 2,080 shares of Common Stock on 2026-04-10 upon vesting of Performance Restricted Stock Unit awards for the 2023-2025 period. To cover tax obligations, 834 shares were withheld at $58.60 per share, resulting in a net increase of 1,246 shares. Following these compensation-related transactions, Chandler directly owns 23,225 shares of Common Stock.

FIRST BUSINESS FINANCIAL SERVICES, INC. CEO Corey A. Chambas reported compensation-related share activity. He received 10,370 shares of Common Stock at no cost upon vesting of Performance Restricted Stock Unit awards for the 2023-2025 performance period, and 4,875 shares were withheld at $58.60 per share to cover tax obligations. After these entries, he directly holds 122,080 shares and indirectly holds 16,992 shares through a 401(k) plan.

FIRST BUSINESS FINANCIAL SERVICES, INC. President and COO David R. Seiler reported two transactions in common stock. He received a grant or award of 1,655 shares on February 16, 2026 at a stated price of $0.00 per share, increasing his directly held stake. On the same date, 665 shares were disposed of in a tax-withholding transaction at $58.36 per share, leaving him with 34,504 directly owned shares after these movements. A related footnote states that 27,031 shares are held by the David & Lisa Seiler Revocable Trust.

FIRST BUSINESS FINANCIAL SERVICES, INC. CFO Brian D. Spielmann reported equity transactions in company common stock. He received a grant of 875 shares at no cost and had 603 shares disposed of in a tax-withholding transaction at $58.36 per share, leaving 5,622 shares held directly.

FIRST BUSINESS FINANCIAL SERVICES, INC. reported an insider equity transaction by Chief Human Resources Officer Jodi A. Chandler. On February 16, 2026, Chandler acquired 550 shares of common stock as a grant at $0.00 per share, reflecting a stock-based award rather than an open-market purchase. On the same date, 313 shares of common stock were disposed of at $58.36 per share to cover tax obligations, a tax-withholding disposition rather than a discretionary sale. After these transactions, Chandler directly owned 21,979 shares of common stock.

FIRST BUSINESS FINANCIAL SERVICES, INC. CEO Corey A. Chambas reported a Form 4 transaction involving a tax-withholding disposition of 1,531 shares of common stock on February 16, 2026 at $58.36 per share. After this transaction, he directly owned 116,585 shares, with an additional 16,992 shares held indirectly through a 401(k) plan.

FIRST BUSINESS FINANCIAL SERVICES, INC. Chief Information Officer Daniel Ovokaitys reported two transactions in company common stock on February 16, 2026. He received a grant of 595 shares at no cost and had 406 shares withheld at $58.36 per share to cover tax obligations, leaving him with 9,381 shares held directly.

FIRST BUSINESS FINANCIAL SERVICES, INC. executive James Edward Hartlieb, President and CEO of First Business Bank, reported mixed share movements in company common stock. He received a grant or award acquisition of 715 shares on February 16, 2026, at a stated price of $0.0000 per share. On the same date, 392 shares were disposed of in a tax-withholding transaction at $58.36 per share to cover exercise price or tax liabilities, leaving him with 30,072.874 directly owned shares.

FIRST BUSINESS FINANCIAL SERVICES, INC. Chief Credit Officer Bradley A. Quade reported routine equity compensation activity. He acquired 735 shares of common stock as a grant or award, and 420 shares were disposed of to cover tax obligations at a price of $58.36 per share, leaving him with 14,938 directly owned shares.

FIRST BUSINESS FINANCIAL SERVICES, INC. chief risk officer Laura M. Garcia reported stock-based compensation and a related tax transaction. She acquired 605 shares of common stock on February 16, 2026 as a grant at $0.00 per share, then disposed of 398 shares on the same date at $58.36 per share to cover tax obligations. After these Form 4-reported transactions, her directly owned common stock holdings totaled 3,450 shares.

FIRST BUSINESS FINANCIAL SERVICES, INC. President - Specialty Finance, Niamh M. Kristufek, reported mixed share movements. On 2026-02-16, she received a grant of 660 shares of common stock at $0.00 per share and disposed of 254 shares at $58.36 per share for tax withholding. After these transactions, she directly owned 3,336 common shares.

FIRST BUSINESS FINANCIAL SERVICES, INC. Chief Accounting Officer Kevin D. Crampton reported equity compensation activity in company common stock. On February 16, 2026, he acquired 610 shares through a grant or award at no cash cost, and 101 shares were disposed of to cover tax obligations at $58.36 per share. After these transactions, he directly owned 2,401 common shares.

FIRST BUSINESS FINANCIAL SERVICES, INC. (FBIZ) insider filed a Form 4 reporting two gifts of 200 shares each on 11/12/2025 (Transaction Code G).

The filing notes that gift transactions list no price. Following the reported transactions, the filing shows 16,992 shares held indirectly by a 401(k) Plan. The reporting person is identified as both CEO and Director, and the filing was made by one reporting person.

First Business Financial Services (FBIZ) reported an insider purchase by its Chief Accounting Officer. On 11/07/2025, the officer bought 71 shares of common stock at a price of $51.4 per share, coded as a “P” (purchase) transaction.

Following this trade, the officer beneficially owns 1,892 shares, held directly. This filing reflects a routine update to insider ownership under Section 16 rules.