Director Billy J. Lyons Jr. of Old Second Bancorp Inc. filed a Form 4 with the SEC on August 11, 2026, disclosing the acquisition of common stock on August 10, 2026.

Key Highlights

  • Reporting person: Billy J. Lyons Jr., listed as a Director of Old Second Bancorp Inc. (NASDAQ:OSBC)
  • Transaction: Acquisition (code A) of 20 shares of Old Second Bancorp, Inc. Common Stock on August 10, 2026
  • Price per share: $25.38, as stated in the filing
  • Post-transaction ownership: 20,117 shares of common stock beneficially owned directly following the transaction
  • Share breakdown: 8,687 shares held with a broker and 11,430 shares held in Mr. Lyons' name outright, per footnote 1
  • Restricted Stock Units: 10,595 restricted stock units held directly, also disclosed in the filing

Old Second Bancorp Director Lyons Discloses Share Acquisition and Beneficial Ownership

According to the Form 4 filed on August 11, 2026, Billy J. Lyons Jr., a Director of Old Second Bancorp Inc. (NASDAQ:OSBC), reported the acquisition of 20 shares of Old Second Bancorp, Inc. Common Stock on August 10, 2026, at a price of $25.38 per share. The transaction was coded as an acquisition (A) of non-derivative securities, as disclosed in Table I of the filing.

Following the reported transaction, the filing states that Lyons beneficially owned 20,117 shares of common stock directly. A footnote in the filing explains that this total includes 8,687 shares held with a broker and 11,430 shares held in Mr. Lyons' name outright. The filing was signed by Shirley Cantrell as Attorney-in-Fact on August 11, 2026.

In addition to the common stock position, the filing discloses that Lyons directly holds 10,595 restricted stock units, reported separately in Table I. No derivative securities transactions were reported in Table II. The filing was made by one reporting person, and no amendment date was indicated, suggesting this is an original filing.

What Was Disclosed

Director Billy J. Lyons Jr. reported acquiring 20 shares of Old Second Bancorp common stock at $25.38 per share on August 10, 2026, bringing his total direct beneficial ownership to 20,117 shares, alongside 10,595 restricted stock units held directly.