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OLD SECOND BANCORP INC DEL (OSBC)

Institutional ownership, SEC filings and insider activity

Sector: Financials · SEC CIK 0000357173 · EDGAR filings · Updated 2026-07-22

OLD SECOND BANCORP INC DEL (OSBC) has reported institutional ownership of 71.7%, with 188 institutional managers holding positions valued at $761.2M per the latest 13F reporting period.

Filings this week (1)

• 2026-07-22 — Current report (8-K) filed

Every filing links to the official SEC document. Real-time filing alerts for this company are available inside the app.

Latest updates

• 2026-07-21 — Current report (8-K) filed
• 2026-07-08 — Current report (8-K) filed
• 2026-07-02 — Insider transaction reported (Form 4)
• 2026-07-02 — Insider transaction reported (Form 4)
• 2026-07-02 — Insider transaction reported (Form 4)

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, OLD SECOND BANCORP INC DEL has 188 institutional holders and institutional ownership of 71.7%.

Insider activity

Insiders reported 83 transactions (1 buys, 10 sells) across 16 reporting insiders, with a net reported value of −$2.85M.

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