STOCK TITAN

Old Second Bancorp insider sells 5,000 shares

OSBC’s vice chairman reported an indirect IRA sale of 5,000 shares and detailed his remaining stock and RSU holdings.

(Moderate)
(Negative)
Form Type
4

Rhea-AI Filing Summary

OLD SECOND BANCORP INC (OSBC) director and vice chairman Gary S. Collins reported selling 5,000 shares of Old Second Bancorp, Inc. common stock on September 4, 2026 at $25.705 per share in an open-market or private transaction through an indirect IRA account. Following this sale, he indirectly holds 53,136.085 shares in the IRA and 7,095 shares through a 401-K plan, and directly holds 37,312 Restricted Stock Units; no Rule 10b5-1 trading plan is reported.

Positive

  • None.

Negative

  • None.
Insider COLLINS GARY S
Role VICE CHAIRMAN
Sold 5,000 shs ($129K)
Type Security Shares Price Value
Sale Old Second Bancorp, Inc. Common Stock 5,000 $25.705 $129K
holding Old Second Bancorp, Inc. Common Stock -- -- --
holding Restricted Stock Units -- -- --
Holdings After Transaction: Old Second Bancorp, Inc. Common Stock — 53,136.085 shares (Indirect, IRA); Old Second Bancorp, Inc. Common Stock — 7,095 shares (Indirect, By 401-K); Restricted Stock Units — 37,312 shares (Direct)
Shares sold 5,000 shares Old Second Bancorp, Inc. common stock sold on September 4, 2026
Sale price per share $25.705 per share Price for the 5,000-share sale on September 4, 2026
Indirect IRA holdings after transaction 53,136.085 shares Old Second Bancorp, Inc. common stock held indirectly via IRA after sale
Indirect 401-K holdings 7,095 shares Old Second Bancorp, Inc. common stock held indirectly via 401-K
Restricted Stock Units 37,312 units Restricted Stock Units held directly after the reported transactions
Indirect financial
"The transaction is reported as indirect ownership through an IRA"
IRA financial
"The nature of ownership for the sold shares is specified as IRA"
An individual retirement account (IRA) is a savings account designed to help people put aside money for their retirement, often with tax advantages that encourage long-term savings. It matters to investors because it can grow over time, providing financial security later in life, and offers benefits that can reduce current taxes or allow investments to compound more effectively.
401-K financial
"Additional indirect holdings are reported as By 401-K"
Restricted Stock Units financial
"The insider reports holdings of 37,312 Restricted Stock Units"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did OSBC insider Gary S. Collins report on this Form 4?

He reported a sale of 5,000 shares of Old Second Bancorp, Inc. common stock on September 4, 2026, executed as an indirect transaction through an IRA, and disclosed his remaining stock and Restricted Stock Unit holdings.

At what price were the OSBC shares sold by Gary S. Collins?

The 5,000 Old Second Bancorp, Inc. shares were sold at a price of $25.705 per share. The transaction is described as a sale in an open market or private transaction through an IRA account.

How many OSBC shares does Gary S. Collins hold after this transaction?

After the sale, Gary S. Collins indirectly holds 53,136.085 shares in an IRA and 7,095 shares through a 401-K plan, and directly holds 37,312 Restricted Stock Units, as reported in the Form 4 filing.

Is the OSBC share sale by Gary S. Collins under a Rule 10b5-1 plan?

No. The filing’s Rule 10b5-1 checkbox is not affirmed, and no footnote indicates a Rule 10b5-1 or other pre-arranged trading plan, so the sale is not reported as being under such a plan.

What type of ownership did the OSBC share sale involve for Gary S. Collins?

The 5,000-share sale involved indirect ownership through an IRA. The Form 4 classifies the transaction as indirect (I) with the nature of ownership specified as IRA for the sold shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
COLLINS GARY S

(Last)(First)(Middle)
37 S. RIVER ST.

(Street)
AURORA ILLINOIS 60302

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
OLD SECOND BANCORP INC [ OSBC ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
VICE CHAIRMAN
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/04/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Old Second Bancorp, Inc. Common Stock09/04/2026S5,000D$25.70553,136.085IIRA
Old Second Bancorp, Inc. Common Stock7,095IBy 401-K
Restricted Stock Units37,312D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
/s/ Shirley Cantrell, Attorney-in-Fact09/11/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

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