$OSBC SEC Filings

Filed On	Filing
21 Oct 2026	Form 4: York Jill E, Director Acquired 14.2083 shares (Small Acquisition) ($200) · Acquired 17.5446 shares (Small Acquisition) ($201) · Acquired 14.5974 shares (Small Acquisition) ($202) · 19 more
21 Oct 2026	Form 4/A: Williams John Jr, Director Disposed of 3,077 shares (Other Transaction) · Acquired 3,077 shares (Other Transaction)
21 Oct 2026	Form 4/A: York Jill E, Director Disposed of 3,077 shares (Other Transaction) · Acquired 3,077 shares (Other Transaction)
21 Oct 2026	8-K: Results of Operations and Financial Condition AURORA, IL, October 21, 2026 – Old Second Bancorp, Inc. (the “Company,” “Old Second,” “we,” “us,” and “our”) (NASDAQ: OSBC), the parent company of Old Second National Bank (the “Bank”), today announced financial results for the third qua...
20 Oct 2026	Form 4/A: Kotche Keith, Director Disposed of 3,077 shares (Other Transaction) · Acquired 3,077 shares (Other Transaction)
20 Oct 2026	Form 4/A: Lyons Billy J Jr., Director Disposed of 3,077 shares (Other Transaction) · Acquired 3,077 shares (Other Transaction)
20 Oct 2026	Form 4/A: Temple Rocks Patti, Director Disposed of 3,077 shares (Other Transaction) · Acquired 3,077 shares (Other Transaction)
20 Oct 2026	Form 4/A: Finn Barry, Director Disposed of 3,077 shares (Other Transaction) · Acquired 3,077 shares (Other Transaction)
20 Oct 2026	Form 4/A: Klaeser Dennis L, Director Disposed of 3,077 shares (Other Transaction) · Acquired 3,077 shares (Other Transaction)
20 Oct 2026	Form 4/A: Mclean Hugh H, Director Disposed of 3,077 shares (Other Transaction) · Acquired 3,077 shares (Other Transaction)
20 Oct 2026	Form 4/A: Bonifas Edward, Director Disposed of 3,077 shares (Other Transaction) · Acquired 3,077 shares (Other Transaction)
20 Oct 2026	8-K: Other Events On October 20, 2026, the Registrant’s Board of Directors declared a cash dividend of $0.08 per share payable on November 9, 2026, to stockholders of record as of October 30, 2026.
19 Oct 2026	8-K: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
08 Oct 2026	SCHEDULE 13G
01 Oct 2026	Form 4: Gartelmann Richard A Jr, EVP Acquired 35 shares (Other Transaction)
01 Oct 2026	Form 4: Pilmer Donald, EVP Acquired 11 shares (Other Transaction)
01 Oct 2026	Form 4: Adams Bradley S., CFO & COO Acquired 28 shares (Other Transaction)
01 Oct 2026	Form 4: Eccher James, Director Acquired 109 shares (Other Transaction)
01 Oct 2026	Form 4: Collins Gary S, Director Acquired 30 shares (Other Transaction)
01 Oct 2026	8-K: Other Events Old Second Bancorp, Inc. (the “Company”, “we,” “us” and “our”) will release financial results for the third quarter of 2026 after the market closes on October 21, 2026.

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