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Old Second Bancorp (OSBC) CFO reports routine plan share allocation

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

OLD SECOND BANCORP INC executive Bradley S. Adams, the CFO and COO, reported updated share holdings on a Form 4. The filing shows a small 34-share transaction coded “J,” described as an other acquisition or disposition, allocated during the second quarter under the Old Second Bancorp, Inc. Salary & Savings Plan and reported by the plan trustee as of June 30, 2026.

After this plan-related activity, Adams directly holds 84,980 Restricted Stock Units and 160,401 shares of Old Second Bancorp common stock. Footnotes state this common stock figure includes 75,300 shares held jointly with his spouse through a broker and 85,101 shares held jointly with his spouse outright. In addition, he indirectly holds 10,193 shares through the 401-k Salary & Savings Plan. The transactions are routine reporting and do not reflect any open-market buying or selling.

Positive

  • None.

Negative

  • None.
Insider ADAMS BRADLEY S.
Role CFO & COO
Type Security Shares Price Value
Other Old Second Bancorp, Inc. Common Stock 34 $0.00 --
holding Old Second Bancorp, Inc. Common Stock -- -- --
holding Restricted Stock Units -- -- --
Holdings After Transaction: Old Second Bancorp, Inc. Common Stock — 10,193 shares (Indirect, By 401-k Plan); Old Second Bancorp, Inc. Common Stock — 160,401 shares (Direct, null); Restricted Stock Units — 84,980 shares (Direct, null)
Footnotes (1)
  1. Of this total, 34 shares were allocated during the second quarter pursuant to the Old Second Bancorp, Inc. Salary & Savings Plan. Information herein was provided by the Plan Trustee as of 6-30-26. Included in this total are 75,300 shares held jointly with spouse with a broker and 85,101 shares held jointly with spouse outright.
Plan-related shares moved 34 shares Other acquisition or disposition in Salary & Savings Plan, Q2 as of June 30, 2026
Indirect 401-k holdings 10,193 shares Old Second Bancorp common stock held by 401-k Salary & Savings Plan after transaction
Restricted Stock Units 84,980 units RSUs directly held by Bradley Adams following reported activity
Direct common stock holdings 160,401 shares Old Second Bancorp common stock directly held by Adams after June 30, 2026
Joint broker-held shares with spouse 75,300 shares Portion of direct common stock held jointly with spouse through a broker
Joint outright shares with spouse 85,101 shares Portion of direct common stock held jointly with spouse outright
Transaction price per share $0.0000 per share Reported for the 34-share J-code transaction in the plan
Restricted Stock Units financial
"Bradley Adams holds 84,980 Restricted Stock Units after the reported activity."
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.
Old Second Bancorp, Inc. Salary & Savings Plan financial
"34 shares were allocated during the second quarter pursuant to the Old Second Bancorp, Inc. Salary & Savings Plan."
transaction code J financial
"The 34-share transaction, coded “J,” reflects an other acquisition or disposition."
Form 4 regulatory
"He reported updated share holdings and a small plan-related transaction on a Form 4."
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
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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*
ADAMS BRADLEY S.

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

(Street)
AURORA ILLINOIS 60506

(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)
Director10% Owner
XOfficer (give title below)Other (specify below)
CFO & COO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/30/2026
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 Stock06/30/2026J34(1)A$010,193IBy 401-k Plan
Old Second Bancorp, Inc. Common Stock160,401(2)D
Restricted Stock Units84,980D
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:
1. Of this total, 34 shares were allocated during the second quarter pursuant to the Old Second Bancorp, Inc. Salary & Savings Plan. Information herein was provided by the Plan Trustee as of 6-30-26.
2. Included in this total are 75,300 shares held jointly with spouse with a broker and 85,101 shares held jointly with spouse outright.
/s/ Shirley Cantrell, Attorney-in-Fact07/02/2026
** 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)

FAQ

What did OSBC CFO Bradley S. Adams report in this Form 4?

He reported updated share holdings and a small plan-related transaction. A 34-share movement in the Salary & Savings Plan was recorded, along with his post-transaction direct and indirect ownership in Old Second Bancorp common stock and restricted stock units.

How many Old Second Bancorp RSUs does OSBC CFO Bradley Adams hold?

Bradley Adams holds 84,980 Restricted Stock Units after the reported activity. These RSUs represent deferred equity-based compensation that may convert into common shares according to the company’s award terms and vesting schedules disclosed in separate compensation documents.

What is Bradley Adams’ direct common stock ownership in OSBC after this filing?

He directly owns 160,401 shares of Old Second Bancorp common stock. Footnotes explain this includes 75,300 shares held jointly with his spouse through a broker and 85,101 shares held jointly with his spouse outright, reflecting combined household holdings.

What does the 34-share Form 4 transaction for OSBC represent?

The 34-share transaction, coded “J,” reflects an other acquisition or disposition inside the company’s Salary & Savings Plan. Footnotes state these shares were allocated during the second quarter under the Old Second Bancorp, Inc. Salary & Savings Plan as of June 30, 2026.

How many OSBC shares does Bradley Adams hold through the 401-k Salary & Savings Plan?

He indirectly holds 10,193 shares of Old Second Bancorp common stock through the 401-k Salary & Savings Plan. The plan trustee provided this information as of June 30, 2026, indicating retirement-plan based ownership separate from his direct and joint-share positions.

Does this OSBC Form 4 show open-market buying or selling by the CFO?

The Form 4 does not show open-market purchases or sales. It mainly reports updated holdings and a small 34-share plan-related movement coded as an other acquisition or disposition within the company’s Salary & Savings Plan, at a reported price of $0.0000 per share.