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COLLINS GARY S

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33495
SEC CIK
0001184766

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CompanyLast reported asReport datePublished
OLD SECOND BANCORP INCOSBC · Entity 2238Director · VICE CHAIRMANSeptember 30, 2026October 01, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

OLD SECOND BANCORP INC

Report date September 30, 2026 · Filed October 01, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Old Second Bancorp, Inc. Common StockSEC Table I · non-derivativeIndirectBy 401-K7,125 Reported balance After 2026-09-30 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 1 · 2026-09-30 · Other · Acquired 30 · Balance 7,125

F1: These shares were allocated during the third quarter pursuant to the Old Second Bancorp, Inc. Employee Savings Plan & Trust. Information herein was provided by the Plan Trustee as of 9-30-26.

Old Second Bancorp, Inc. Common StockSEC Table I · non-derivativeDirect14,136 Reported balance Holding disclosure · report date 2026-09-30 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 14,136

Old Second Bancorp, Inc. Common StockSEC Table I · non-derivativeIndirectIRA53,136.085 Reported balance Holding disclosure · report date 2026-09-30 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 53,136.085

F2: Included in this total are 30,880 shares in a ROTH IRA and 22,256.085 in a traditional IRA.

Restricted Stock UnitsSEC Table I · non-derivativeDirect37,312 Reported balance Holding disclosure · report date 2026-09-30 · row 4 Holding and transaction disclosures are not merged.
1 source row

Row 4 · Balance 37,312

Filing footnotes · ownership attribution and instrument terms

F1: These shares were allocated during the third quarter pursuant to the Old Second Bancorp, Inc. Employee Savings Plan & Trust. Information herein was provided by the Plan Trustee as of 9-30-26.

F2: Included in this total are 30,880 shares in a ROTH IRA and 22,256.085 in a traditional IRA.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 30, 2026 Filed Oct 1, 2026 22:12 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 30 $0.00 $0.00
Disclosure

SEC source: 0001184766-26-000024 · form4-10012026_061055.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 7,125

F1 · shares: These shares were allocated during the third quarter pursuant to the Old Second Bancorp, Inc. Employee Savings Plan & Trust. Information herein was provided by the Plan Trustee as of 9-30-26.

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September 23, 2026 Filed Sep 23, 2026 22:34 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 SaleOld Second Bancorp, Inc. Common Stock 16,000 $24.69 $395,080.00
Disclosure

SEC source: 0001184766-26-000022 · form4-09232026_100935.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,136

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.575 to $24.75, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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September 04, 2026 Filed Sep 11, 2026 15:50 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 SaleOld Second Bancorp, Inc. Common Stock 5,000 $25.71 $128,525.00
Disclosure

SEC source: 0001184766-26-000020 · form4-09112026_030925.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · IRA

Disclosed balance after: 53,136.085

Read SEC document
June 30, 2026 Filed Jul 2, 2026 14:22 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 37 $0.00 $0.00
Disclosure

SEC source: 0001184766-26-000018 · form4-07022026_020753.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 7,095

F1 · shares: Of this total, 37 shares were allocated during the second quarter pursuant to the Old Second Bancorp, Inc. Employee Salary and Savings Plan. Information herein was provided by the Plan Trustee as of 6-30-26.

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May 22, 2026 Filed May 26, 2026 20:53 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 SaleOld Second Bancorp, Inc. Common Stock 5,120 $21.12 $108,134.40
Disclosure

SEC source: 0001184766-26-000016 · form4-05262026_080546.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · IRA

Disclosed balance after: 58,136.085

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May 21, 2026 Filed May 21, 2026 21:35 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 SaleOld Second Bancorp, Inc. Common Stock 10,000 $21.12 $211,200.00
Disclosure

SEC source: 0001184766-26-000014 · form4-05212026_090522.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · IRA

Disclosed balance after: 63,256.085

Read SEC document
May 08, 2026 Filed May 11, 2026 19:39 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 SaleOld Second Bancorp, Inc. Common Stock 5,000 $21.23 $106,125.00
Disclosure

SEC source: 0001184766-26-000012 · form4-05112026_070529.xml · nonDerivative · entry 2

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · IRA

Disclosed balance after: 73,256.085

Read SEC document
May 08, 2026 Filed May 11, 2026 19:39 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 SaleOld Second Bancorp, Inc. Common Stock 10,000 $21.24 $212,400.00
Disclosure

SEC source: 0001184766-26-000012 · form4-05112026_070529.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,136

Read SEC document
March 31, 2026 Filed Apr 2, 2026 13:10 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 253 $0.00 $0.00
Disclosure

SEC source: 0001184766-26-000010 · form4-04022026_010433.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 7,058

F1 · balance_after: Of this total, 253 shares were allocated during the first quarter pursuant to the Old Second Bancorp, Inc. Salary and Savings Plan. Information was provided herein by the Plan Trustee as of 3-31-26.

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March 20, 2026 Filed Mar 23, 2026 18:02 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 SaleOld Second Bancorp, Inc. Common Stock 22,154 $19.38 $429,435.35
Disclosure

SEC source: 0001184766-26-000008 · form4-03232026_060354.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,136

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.37 to $19.40, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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March 02, 2026 Filed Mar 4, 2026 19:51 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 Tax withholdingOld Second Bancorp, Inc. Common Stock 4,228 $19.91 $84,179.48
Disclosure

SEC source: 0001184766-26-000006 · form4-03042026_070328.xml · nonDerivative · entry 2

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,666

F2 · shares: Represents shares withheld by the issuer to satisfy applicable tax withholding obligations in connection with the vesting of 14,432 previously reported performance-based restricted stock units, the remaining shares of which were issued and added to the reporting person's common stock holdings.

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March 02, 2026 Filed Mar 4, 2026 19:51 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantOld Second Bancorp, Inc. Common Stock 14,432 $0.00 $0.00
Disclosure

SEC source: 0001184766-26-000006 · form4-03042026_070328.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,462

F1 · shares: Shares delivered to the reporting person pursuant to vesting of performance-based restricted stock units granted under the Old Second Bancorp, Inc. 2019 Equity Incentive Plan, as Amended and Restated and vested upon achievement of performance goals for the applicable performance period. The reporting person reported an acquisition of 8,246 on Form 4 filed February 21, 2023, which represented the number of shares that would be delivered if target performance was achieved during the performance period. Actual performance exceeded the target performance for the performance period which resulted in an additional grant of 6,186 shares.

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February 21, 2026 Filed Feb 24, 2026 23:59 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 Tax withholdingRestricted Stock Units 2,784 $20.57 $57,266.88
Disclosure

SEC source: 0001184766-26-000004 · form4-02242026_110219.xml · nonDerivative · entry 2

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,558

F2 · shares: Represents shares withheld by the issuer to satisfy applicable tax withholding obligations in connection with the vesting of 8,246 previously reported time-based restricted stock units, the remaining shares of which were issued and added to the reporting person's common stock holdings.

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February 17, 2026 Filed Feb 24, 2026 23:59 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantRestricted Stock Units 8,858 $0.00 $0.00
Disclosure

SEC source: 0001184766-26-000004 · form4-02242026_110219.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,804

F1 · shares: Each restricted stock unit represents a contingent right to receive one share of common stock. The reporting person was granted 8,858 restricted stock units on the date of the grant, 4,429 of which are time-based restricted stock units that vest on the third anniversary of the grant date, and 4,429 of which are performance-based restricted stock units that may vest and convert to shares within a range from 0% to 175% of the underlying performance-based restricted stock units originally awarded, depending on our compensation committee approved performance metrics. Vested shares, if any, will be delivered to the reporting person in 3 to 5 business days from the date of vesting.

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December 31, 2025 Filed Jan 5, 2026 23:20 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 40 $0.00 $0.00
Disclosure

SEC source: 0001184766-26-000002 · form4-01052026_110129.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 6,805

F1 · balance_after: Of this total, 40 shares were allocated during the fourth quarter pursuant to the Old Second Bancorp, Inc. Employee Salary and Savings Plan. Information herein was provided by the Plan Trustee as of 12-31-25.

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September 30, 2025 Filed Oct 1, 2025 20:29 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 62 $0.00 $0.00
Disclosure

SEC source: 0001184766-25-000004 · form4-10012025_081017.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 6,765

F1 · balance_after: Of this total, 62 shares were allocated during the third quarter pursuant to the Old Second Bancorp, Inc. Employee Salary and Savings Plan. Information herein was provided by the Plan Trustee as of 09-30-25.

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June 30, 2025 Filed Jul 7, 2025 20:00 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 113 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-019400 · form4-07072025_080706.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 6,703

F1 · balance_after: Of this total, 113 shares were allocated during the second quarter pursuant to the Old Second Employee Salary and Savings Plan. Information herein was provided by the plan trustee as of 6-30-25.

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March 31, 2025 Filed Apr 1, 2025 20:48 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 220 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-009389 · form4-04012025_080412.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 6,590

F1 · balance_after: Of this total, 220 shares were allocated during the first quarter pursuant to the Old Second Employee Salary and Savings Plan. Information herein was provided by the plan trustee as of 3-31-25.

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March 04, 2025 Filed Mar 6, 2025 22:23 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 Tax withholdingOld Second Bancorp, Inc. Common Stock 4,447 $17.65 $78,489.55
Disclosure

SEC source: 0001415889-25-007252 · form4-03062025_100331.xml · nonDerivative · entry 2

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,112

F3 · shares: Shares withheld for taxes upon the settlement in shares of the performance-based restricted stock units previously granted to the reporting person.

F4 · balance_after: Included in this total are 46,624 shares held with a broker and 16,488 shares held outright in the reporting person's name solely.

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March 04, 2025 Filed Mar 6, 2025 22:23 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantOld Second Bancorp, Inc. Common Stock 15,180 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-007252 · form4-03062025_100331.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,559

F1 · shares: Shares delivered to the reporting person pursuant to vesting of performance-based restricted stock units granted under the Old Second Bancorp, Inc. 2019 Equity Incentive Plan, as Amended and Restated and vested upon achievement of performance goals for the applicable performance period. The reporting person reported an acquisition of 8,673 on Form 4 filed on February 15, 2022, which represented the number of shares that would be delivered if target performance was achieved during the performance period. Actual performance exceeded the target performance for the performance period which resulted in an additional grant of 6,507 shares.

F2 · balance_after: Included in this total are 46,624 shares held with a broker and 16,488 shares held outright in the reporting person's name solely.

Read SEC document
February 19, 2025 Filed Feb 21, 2025 20:58 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantRestricted Stock Units 11,962 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-005031 · form4-02212025_080245.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,619

F1 · shares: Each restricted stock unit represents a contingent right to receive one share of common stock. The reporting person was granted 11,962 restricted stock units on the date of the grant, 5,981 of which are time-based restricted stock units that vest on the third anniversary of the grant date, and 5,981 of which are performance-based restricted stock units that may vest and convert to shares within a range from 0% to 175% of the underlying performance-based restricted stock units originally awarded, depending on our compensation committee approved performance metrics. Vested shares, if any, will be delivered to the reporting person in 3 to 5 business days from the date of vesting.

F2 · balance_after: Of this total, 31,146 shares are Performance-based Restricted Stock Units and 22,473 are time-based Restricted Stock Units.

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December 31, 2024 Filed Jan 2, 2025 19:00 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantOld Second Bancorp, Inc. Common Stock 37 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-000060 · form4-01022025_070116.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 6,370

F1 · shares: These shares were allocated during the fourth quarter pursuant to the Old Second Bancorp, Inc. Salary & Savings Plan. Information herein was provided by the Plan Trustee as of 12-31-24.

Read SEC document
September 30, 2024 Filed Oct 4, 2024 18:13 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 76 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-024740 · form4-10042024_061009.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 6,333

F1 · shares: These shares were allocated during the third quarter pursuant to the Old Second Bancorp, Inc. Employee Salary and Savings Plan. Information herein was provided by the Plan Trustee as of 09-30-24.

Read SEC document
June 30, 2024 Filed Jul 2, 2024 17:22 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 129 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-018827 · form4-07022024_050743.xml · nonDerivative · entry 2

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 6,257

F2 · balance_after: Of this total, 129 shares were allocated during the second quarter of 2024, pursuant to the Old Second Bancorp, Inc. Employee Salary and Savings Plan. Information herein was provided by the plan Trustee as of 6-30-24.

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May 08, 2024 Filed May 9, 2024 20:21 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 SaleOld Second Bancorp, Inc. Common Stock 21,002.306 $14.23 $298,808.21
Disclosure

SEC source: 0001415889-24-012730 · form4-05092024_080539.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,624

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.21 to $14.29, inclusive. The reporting person undertakes to provide to Old Second Bancorp, Inc., any security holder of Old Second Bancorp, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 1 to this Form 4.

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April 23, 2024 Filed Apr 24, 2024 21:24 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 SaleOld Second Bancorp, Inc. Common Stock 22,267 $14.57 $324,430.19
Disclosure

SEC source: 0001415889-24-011452 · form4-04242024_090435.xml · nonDerivative · entry 2

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,626.306

Read SEC document
April 23, 2024 Filed Apr 24, 2024 21:24 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 SaleOld Second Bancorp, Inc. Common Stock 15,000 $14.55 $218,250.00
Disclosure

SEC source: 0001415889-24-011452 · form4-04242024_090435.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · IRA

Disclosed balance after: 61,768.085

Read SEC document
April 22, 2024 Filed Apr 24, 2024 21:24 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 SaleOld Second Bancorp, Inc. Common Stock 3,000 $14.48 $43,440.00
Disclosure

SEC source: 0001415889-24-011452 · form4-04242024_090435.xml · nonDerivative · entry 3

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,893.306

Read SEC document
March 31, 2024 Filed Jul 2, 2024 17:22 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 234 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-018827 · form4-07022024_050743.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 6,128

F1 · balance_after: Of this total, 234 shares were allocated during the first quarter of 2024, pursuant to the Old Second Bancorp, Inc. Employee Salary and Savings Plan. Information herein was provided by the plan Trustee as of 3-31-24.

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March 20, 2024 Filed Mar 21, 2024 22:17 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantRestricted Stock Units 16,492 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-008880 · form4-03212024_100323.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,330

F1 · shares: Each restricted stock grant unit represents a contingent right to receive one share of common stock. The reporting person was granted 16,492 restricted stock units on the date of the grant, 8,246 of which are time-based restricted stock units that vest on the third anniversary of the grant date, and 8,246 of which are performance-based restricted stock units that may vest and convert to shares within a range from 0% to 175% of the underlying performance-based restricted stock units originally awarded, depending on our compensation committee approved performance metrics. Vested shares, if any, will be delivered to the reporting person in 3 to 5 business days from the date of vesting.

F2 · balance_after: This total includes 25,165 shares of time-based restricted stock units and 25,165 shares of performance-based restricted stock units.

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March 13, 2024 Filed Mar 15, 2024 22:24 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 Tax withholdingOld Second Bancorp, Inc. Common Stock 4,665 $13.36 $62,324.40
Disclosure

SEC source: 0001415889-24-008148 · form4-03152024_100335.xml · nonDerivative · entry 2

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,594

F2 · shares: Shares withheld for taxes upon settlement in shares of the performance-based restricted stock units previously granted to the reporting person.

Read SEC document
March 13, 2024 Filed Mar 15, 2024 22:24 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantOld Second Bancorp, Inc. Common Stock 15,924 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-008148 · form4-03152024_100335.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,924

F1 · shares: Shares delivered to the reporting person pursuant to vesting of performance-based restricted stock units granted under the Old Second Bancorp, Inc. 2019 Equity Incentive Plan, as Amended and Restated and vested upon achievement of performance goals for the applicable performance period. At the time of grant, the reporting person reported an acquisition of 10,616 of these shares, which represented the number of shares that would be delivered if target performance was achieved during the performance period. Actual performance exceeded the target performance for the performance period.

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December 31, 2023 Filed Jan 2, 2024 22:00 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantOld Second Bancorp, Inc. Common Stock 21 $0.00 $0.00
Disclosure

SEC source: 0001415889-24-000064 · form4-01022024_100115.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 5,894

F1 · balance_after: Of this total, 21 shares were allocated during the fourth quarter pursuant to the Old Second Bancorp, Inc. Employee Salary and Savings Plan. Information herein was provided by the plan Trustee as of 12-31-23.

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September 30, 2023 Filed Oct 2, 2023 18:32 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantOld Second Bancorp, Inc. Common Stock 18 $0.00 $0.00
Disclosure

SEC source: 0001415889-23-013695 · form4-10022023_061011.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 5,873

F1 · balance_after: Of this total, 18 shares were allocated during the third quarter pursuant to the Old Second Bancorp, Inc. Employee Salary and Savings Plan. Information herein was provided by the Plan Trustee as of 9-30-23.

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June 30, 2023 Filed Jul 3, 2023 19:57 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantOld Second Bancorp, Inc. Common Stock 26 $0.00 $0.00
Disclosure

SEC source: 0001415889-23-010549 · form4-07032023_070717.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 5,855

F1 · balance_after: Of this total, 26 shares were allocated during the second quarter pursuant to the Old Second Bancorp, Inc. Employee Salary and Savings Plan. Information herein was provided by the Plan Trustee as of 6-30-23.

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March 31, 2023 Filed Apr 4, 2023 19:59 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 77 $0.00 $0.00
Disclosure

SEC source: 0001415889-23-005986 · form4-04042023_070411.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Indirect · By 401-K

Disclosed balance after: 5,829

F1 · balance_after: Of this total, 77 shares were allocated during the first quarter pursuant to the Old Second Bancorp, Inc. Employee Salary Savings Plan and Trust. Information herein was provided by the Plan Trustee as of 3-31-23.

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February 21, 2023 Filed Feb 23, 2023 17:40 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantOld Second Bancorp, Inc. Common Stock 16,492 $0.00 $0.00
Disclosure

SEC source: 0001415889-23-003113 · form4-02232023_050229.xml · nonDerivative · entry 2

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 140,898.306

F2 · shares: These shares represent Restricted Stock Unit granted 2-21-23 pursuant to the Old Second Bancorp, Inc. 2019 Equity Incentive Plan. These shares have a 3-year cliff vesting.

F3 · balance_after: Included in this total are 6,983 shares held outright; 55,070 shares of Restricted Stock Units and 78,845.306 shares held with a broker.

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February 21, 2023 Filed Mar 3, 2023 22:25 UTC Amendment OLD SECOND BANCORP INC OSBC · Entity 2238 GrantRestricted Stock Units 16,492 $0.00 $0.00
Disclosure

SEC source: 0001415889-23-004174 · form4a-03032023_100302.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,070

F1 · shares: Each restricted stock unit represents a contingent right to receive one share of common stock. The reporting person was granted 16,492 restricted stock units on the date of grant, 8,246 of which are time-based restricted stock units that cliff vest on the third anniversary of the grant date, and 8,246 of which are performance-based restricted stock units that may vest and convert to shares within a range from 0% to 150% of the underlying performance-based restricted stock units originally awarded, depending on our compensation committee approved performance metrics. Vested shares, if any, will be delivered to the reporting person within 3 to 5 business days.

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February 18, 2023 Filed Feb 23, 2023 17:40 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 Disposition to issuerOld Second Bancorp, Inc. Common Stock 3,351 $0.00 $0.00
Disclosure

SEC source: 0001415889-23-003113 · form4-02232023_050229.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 124,406.306

F1 · shares: These shares were disposed of to cover the tax liability from Restricted Stock Unit vesting.

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December 31, 2022 Filed Jan 3, 2023 20:37 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 49 $0.00 $0.00
Disclosure

SEC source: 0001415889-23-000026 · form4-01032023_080155.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Indirect · By 401-K

Disclosed balance after: 5,752

F1 · balance_after: Of this total, 49 shares were allocated during the fourth quarter pursuant to the Old Second Bancorp Inc Employee Savings Plan and Trust. Information herein was provided by the Plan Trustee as of 12-31-22.

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December 16, 2022 Filed Dec 19, 2022 14:52 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 PurchaseOld Second Bancorp, Inc. Common Stock 900 $16.04 $14,431.50
Disclosure

SEC source: 0001415889-22-012676 · form4-12192022_021234.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 127,757.306

F1 · balance_after: Included in this total are 78,845.306 shares held by Mr. Collins solely at a broker; 29,623 shares of Restricted Stock Units and 19,289 shares of Performance Based Restricted Stock Units held by Mr. Collins.

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September 30, 2022 Filed Oct 3, 2022 16:40 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 79 $0.00 $0.00
Disclosure

SEC source: 0001415889-22-010058 · form4-10032022_091041.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Indirect · By 401-K

Disclosed balance after: 5,703

F1 · balance_after: Of this total, 79 shares were allocated during the third quarter pursuant to the Old Second Bancorp Inc Employee Savings Plan and Trust. Information herein was provided by the Plan Trustee as of 9-30-22.

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September 16, 2022 Filed Sep 19, 2022 19:10 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 PurchaseOld Second Bancorp, Inc. Common Stock 1,000 $13.35 $13,350.00
Disclosure

SEC source: 0001415889-22-009746 · form4-09192022_120900.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 126,857

F1 · balance_after: Included in this total are 19,289 shares of Performance-based Restricted Stock Units; 29,623 shares of Restricted Stock Units and 77,945 shares held with a broker.

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June 30, 2022 Filed Jul 6, 2022 21:29 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 60 $0.00 $0.00
Disclosure

SEC source: 0001415889-22-007514 · form4-07062022_020753.xml · nonDerivative · entry 2

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Indirect · By 401-K

Disclosed balance after: 5,624

F2 · shares: These shares were allocated during the second quarter pursuant to the Old Second Bancorp, Inc. Employee Savings Plan & Trust. Information herein was provided by the Plan Trustee as of 6-30-22.

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May 21, 2022 Filed May 24, 2022 21:14 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 Disposition to issuerOld Second Bancorp, Inc. Common Stock 2,987 $13.94 $41,638.78
Disclosure

SEC source: 0001415889-22-005605 · form4-05242022_020537.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,857

F1 · balance_after: Included in this total are 7,209 shares in Mr. Collins' name outright, 48,912 shares of Restricted Stock Units and 69,736.306 shares held with a broker.

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March 31, 2022 Filed Jul 6, 2022 21:29 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 244 $0.00 $0.00
Disclosure

SEC source: 0001415889-22-007514 · form4-07062022_020753.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Indirect · By 401-K

Disclosed balance after: 5,564

F1 · shares: These shares were allocated during the first quarter pursuant to the Old Second Bancorp, Inc. Employee Savings Plan & Trust. Information herein was provided by the Plan Trustee as of 3-31-22.

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February 15, 2022 Filed Feb 17, 2022 19:26 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantOld Second Bancorp, Inc. Common Stock 17,346 $0.00 $0.00
Disclosure

SEC source: 0001415889-22-001488 · form4-02172022_110212.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,844

F1 · shares: Of this total, 8,673 shares are restricted stock units and 8,673 shares are performance based restricted stock units granted pursuant to the Old Second Long Term Incentive Plan. These shares have a three-year cliff vesting.

F2 · balance_after: Included in this total are 50,435 shares of restricted stock units, 8,673 shares of performance based restricted stock units and 69,236.306 shares in Mr. Collins name in a broker account.

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December 31, 2021 Filed Jan 4, 2022 19:23 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantOld Second Bancorp, Inc. Common Stock 19 $0.00 $0.00
Disclosure

SEC source: 0001415889-22-000153 · form4-01042022_110108.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Indirect · 401-K

Disclosed balance after: 5,367

F1 · balance_after: Of this total, 19 shares were allocated during the fourth quarter pursuant to the Old Second Bancorp, Inc. Employee Salary and Savings Plan. Information herein was provided by the Plan Trustee as of 12-31-21.

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December 01, 2021 Filed Dec 2, 2021 16:58 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 GrantOld Second Bancorp, Inc. Common Stock 2,120 Not disclosed Not disclosed
Disclosure

SEC source: 0001415889-21-005630 · form4-12022021_081206.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Indirect · By IRA

Disclosed balance after: 76,768

F1 · price: Received in exchange for 50 shares of West Suburban Bancorp, Inc. ("West Suburban") common stock in connection with the merger (the "Merger") of West Suburban with and into Old Second Bancorp, Inc. ("Old Second"). The exchange ratio in the Merger was 42.413 Old Second shares and $271.15 in cash for each share of West Suburban common stock, plus cash in lieu of fractional shares. The closing price per share of West Suburban common stock on the OTC Pink Open Market on the day immediately preceding the effective date of the Merger (the last closing price available) was $801.00 per share, and the closing price per share of Old Second common stock on the effective date of the Merger was $12.35 per share.

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September 30, 2021 Filed Oct 5, 2021 16:48 UTC OLD SECOND BANCORP INC OSBC · Entity 2238 OtherOld Second Bancorp, Inc. Common Stock 28 $0.00 $0.00
Disclosure

SEC source: 0001415889-21-004736 · form4-10052021_091049.xml · nonDerivative · entry 1

COLLINS GARY S · CIK 0001184766 · Director · VICE CHAIRMAN

10b5-1 filing: Not disclosed

Ownership: Indirect · 401-K

Disclosed balance after: 5,348

F1 · balance_after: Of this total, 28 shares were allocated during the third quarter pursuant to the Old Second Bancorp, Inc. Employee Salary and Savings Plan. Information herein was provided by the Plan Trustee as of 9-30-21.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.