Recent 8-K filings for OSBC

• April 22, 2026, 7:59 PM ET earnings materiality 0.65 negative item 2.02item 9.01 ◈ Earnings Releases

  Old Second Bancorp Q1 2026 loan charge-offs rise to $9.8M; ACL at $72.1M

  Total loans $5.185B as of 3/31/26, down from $5.252B at 12/31/25.

• October 22, 2025, 7:59 PM ET earnings materiality 0.65 neutral item 2.02item 9.01

  Old Second Q3 loans surge to $5.27B on Evergreen acquisition; ACL rises to $75M

  Total loans $5,265M at 9/30/2025, up 32% from $3,999M at 6/30/2025, primarily due to Evergreen Bank Group acquisition.

• September 17, 2025, 7:59 PM ET M&A materiality 0.70 neutral item 9.01

  Old Second closes Bancorp Financial buy; pro forma H1 2025 diluted EPS $0.43

  Total purchase consideration ~$189.4M: $140.5M in OSBC stock (7.9M shares at $17.74) plus $48.9M cash.

• July 23, 2025, 7:59 PM ET earnings materiality 0.70 positive item 2.02item 9.01

  Old Second Q2 net income $21.8M, EPS $0.48; closed $1.4B Bancorp Financial merger

  Q2 2025 net income of $21.8M ($0.48 diluted EPS) vs $19.8M ($0.43) in Q1 and $21.9M ($0.48) in Q2 2024.

• July 1, 2025, 7:59 PM ET M&A materiality 0.80 positive item 2.01item 5.02item 8.01item 9.01 ◈ M&A Transactions

  Old Second completes merger with Bancorp Financial; pro forma assets ~$6.98B

  Bancorp Financial shareholders receive 2.5814 OSBC shares + $15.93 cash per share; merger closed July 1, 2025.

• June 18, 2025, 7:59 PM ET M&A materiality 0.70 positive item 7.01

  Bancorp Financial shareholders approve merger with Old Second; close set for July 1, 2025

  Stockholder approval received on June 18, 2025 for the previously announced merger with Old Second Bancorp.

• May 22, 2025, 7:59 PM ET M&A materiality 0.60 positive item 8.01item 9.01

  Old Second receives regulatory approvals for Bancorp Financial merger; close expected July 2025

  Received required bank regulatory approvals for merger with Bancorp Financial, Inc. (Oakbrook, IL).

• April 23, 2025, 7:59 PM ET earnings materiality 0.70 positive item 2.02item 9.01

  Old Second reports Q1 2025 net income of $19.8M ($0.43 EPS); net interest margin expands to 4.88%

  Net income $19.8M ($0.43 diluted EPS) vs $19.1M ($0.42) in Q4 2024 and $21.3M ($0.47) in Q1 2024.

• February 25, 2025, 6:59 PM ET M&A materiality 0.90 positive item 1.01item 8.01item 9.01

  Old Second to acquire Evergreen Bank for ~$197M in 75% stock / 25% cash deal

  Aggregate transaction value of ~$197 million; implied purchase price of $62.60 per Bancorp Financial share.

• December 17, 2024, 6:59 PM ET other material materiality 0.60 positive item 8.01

  Old Second Bancorp authorizes $39.1M share repurchase; Fed non-objection secured

  Board authorized up to $39.1M share repurchase; Federal Reserve non-objection received Dec 16, 2024.

• December 9, 2024, 6:59 PM ET M&A materiality 0.60 positive item 7.01item 9.01

  Old Second completes five-branch acquisition from First Merchants Bank

  Closed purchase of five Illinois branches from First Merchants Bank effective Dec 6, 2024.

• October 16, 2024, 7:59 PM ET earnings materiality 0.70 neutral item 2.02item 9.01

  Old Second Bancorp reports Q3 2024 financial results on October 16, 2024

  Old Second Bancorp (OSBC) issued a press release on October 16, 2024, announcing financial results for Q3 ended September 30, 2024.

• August 27, 2024, 7:59 PM ET M&A materiality 0.75 positive item 7.01item 9.01

  Old Second Bancorp to acquire 5 Chicago-area branches from First Merchants for $23M premium

  Assumes ~$304M in deposits and purchases ~$12M in loans from First Merchants.

• April 17, 2024, 7:59 PM ET earnings materiality 0.65 neutral item 2.02item 9.01 ◈ Earnings Releases

  Old Second Q1 net income $21.3M ($0.47 EPS); QoQ up from $0.40, YoY down from $0.52

  Net income $21.3M, diluted EPS $0.47; adjusted EPS $0.47 (no adjustments). Q4: $18.2M, $0.40; Q1 2023: $23.6M, $0.52.

Earnings & guidance

Materiality & sentiment trend

Max materiality 0.90 · Median 0.30 · Most common event other_material

12 positive 1 negative 35 neutral

source · OSBC on sec.gov