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SEC Form 4 research

FIRST BUSINESS FINANCIAL SERVICES, INC. insider transactions

Inspect FIRST BUSINESS FINANCIAL SERVICES, INC.'s public SEC insider acquisitions and sales, reporting owners and source receipts.

As of 2026-10-15T08:02:39.132Z

Issuer CIK
0001521951
Reporting owners
40
Officers and directors
24
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What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78.
In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Read one actual disclosure before using it

Show the table · 1 row, 7 columns

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2026-08-292026-08-27Chandler Jodi AS675$70.19Not reported

First displayed source row from Recent insider disclosures. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-08-27 and its public availability date is 2026-08-29. Subtracting those calendar dates gives 2 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC accession 0000892712-26-000359 ↗SEC accession 0000892712-26-000353 ↗

Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

Show the table · 2 rows, 7 columns

Scroll sideways to compare all columns. Select a heading to sort.

2026-08-292026-08-27Chandler Jodi AS675$70.19Not reported
2026-08-192026-08-16Ferris Scott M.A575$0Not reported

Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Inspect all 30 displayed rows: Officers and directors in the directory

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Conley Barbara McCarty00014410123
Olszewski Daniel P.000176057616
Seiler David R.00016725961
Kilcoyne Gerald L000153441011
Kauten Ralph R.00017610522
Harris John J00015415527
Sloane Edward G JR00014357703
CHAVARRIA CARLA C000159538515
CHAMBAS COREY A000131129531
Sanders Carol P000134348641
Lorenz William Kent00017461766
Batson Charles H000134785935
Berneking Pamela R.00016236181
Bugher Mark D000133348727
BURKE JOAN A000131130010
Chandler Jodi A00015213377
Crampton Kevin D00019713752
EDDY JAN A00013134334
Graham Jason R00015506491
Hartlieb James Edward00019066621
Keane Timothy J00017605752
LOSENEGGER MICHAEL J00013119549
MELOY MARK J00013113803
Ovokaitys Daniel00016106975
PAPRITZ DAVID R.00016206443
SILSETH JOHN M000138108361
SMITH JEROME J000131143216
Stephens Barbara H000140831620
Vetta David J000139305815
VOEKS DEAN W000131480722
Conley Barbara McCarty ↗Olszewski Daniel P. ↗Seiler David R. ↗Kilcoyne Gerald L ↗Kauten Ralph R. ↗Harris John J ↗Sloane Edward G JR ↗CHAVARRIA CARLA C ↗CHAMBAS COREY A ↗Sanders Carol P ↗Lorenz William Kent ↗Batson Charles H ↗Berneking Pamela R. ↗Bugher Mark D ↗BURKE JOAN A ↗Chandler Jodi A ↗Crampton Kevin D ↗EDDY JAN A ↗Graham Jason R ↗Hartlieb James Edward ↗Keane Timothy J ↗LOSENEGGER MICHAEL J ↗MELOY MARK J ↗Ovokaitys Daniel ↗PAPRITZ DAVID R. ↗SILSETH JOHN M ↗SMITH JEROME J ↗Stephens Barbara H ↗Vetta David J ↗VOEKS DEAN W ↗

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

Strategy eligibility is held while filing coverage is unresolved.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.