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SEC Form 4 research

OLD SECOND BANCORP INC insider transactions

Inspect OLD SECOND BANCORP INC's public SEC insider acquisitions and sales, reporting owners and source receipts.

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

Issuer CIK
0000357173
Reporting owners
32
Officers and directors
18
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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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2026-09-232026-09-23COLLINS GARY SS16,000$24.69Not reported

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

The displayed observation date is 2026-09-23 and its public availability date is 2026-09-23. Subtracting those calendar dates gives 0 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.

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 · 8 rows, 7 columns

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2026-09-232026-09-23COLLINS GARY SS16,000$24.69Not reported
2026-09-112026-09-04COLLINS GARY SS5,000$25.71Not reported
2026-09-082026-09-08MCLEAN HUGH HS25,000$25.63Not reported
2026-09-042026-09-02Campbell Darin PatrickS24,000$25.53Not reported
2026-09-042026-09-03MCLEAN HUGH HS25,000$25.73Not reported
2026-08-142026-08-12Eccher JamesS19,313$25.61Not reported
2026-08-132026-08-11Eccher JamesS55,687$25.46Not reported
2026-08-122026-08-10Lyons Billy J Jr.A20$25.38Not 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 29 displayed rows: Officers and directors in the directory

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Lyons Billy J Jr.000182906414
KLAESER DENNIS L000122576516
MCLEAN HUGH H000118476474
Temple Rocks Patti000165530013
Williams John JR00018958321
Finn Barry00012969867
YORK JILL E000124443855
ADAMS BRADLEY S.00015989177
BONIFAS EDWARD000119104446
Campbell Darin Patrick00020741325
CHEATHAM J DOUGLAS00011953418
COLLINS GARY S0001184766269
Eccher James000131410940
FAGEL MARVIN00011910452
Gartelmann Richard A JR00018400272
Gottschalk Keith000167328427
KANE WILLIAM000119104615
Krasner Mary e00013745295
Ladowicz John000142445357
LINDGREN KENNETH00011910474
MCKEE D CHET00011910492
MEYER WILLIAM J00011910532
PALMER GERALD000117180324
Pilmer Donald00016733216
SCHMITZ JAMES C000119105029
SKOGLUND WILLIAM B000119105140
Sloan Rodney00013813171
Suits Duane00015654951
Tapscott James F000165529913

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.