First Financial Files S-4 for $111.3M First Illinois Merger; Vote Set for Dec 11
THFF sits 46% above its 52-week low of $52.45.
Summary
First Financial filed the S-4/proxy for its $111.3 million all-stock-and-cash acquisition of First Illinois, setting a December 11 shareholder vote and detailing election caps, proration and a $4.4 million break fee.
Key Events · M&A and Partnerships · THFF
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S-4 Filed for First Illinois Merger
Registration statement/proxy filed October 30, 2026 for the August 26, 2026 merger; First Illinois holders elect 0.5727 THFF shares or $44.35 cash per share, valuing the deal at about $111.3 million based on the August 26 close.
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Election Caps and Proration Terms
Cash elections are capped at 727,377 First Illinois shares and stock elections at 1,697,213; oversubscription is prorated, so holders may receive a different cash/stock mix than elected.
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Equity Shortfall Price Adjustment
Merger consideration is cut dollar-for-dollar if First Illinois' adjusted consolidated shareholders' equity at closing is below $82,437,826.
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December 11 Vote; Q1 2027 Closing Target
First Illinois special meeting set for December 11, 2026 (record date November 6); closing targeted for Q1 2027, subject to Fed, OCC and IDFPR approvals and a March 31, 2027 outside date.
Analysis · THFF · Finance
The S-4 puts hard mechanics on the previously announced First Illinois acquisition. FFC will issue about 971,994 shares (roughly 8% of the combined company) plus up to $44.35 per share in cash, with cash elections capped at 727,377 First Illinois shares and stock elections at 1,697,213 — so holders may not get the mix they elect. The price can also be cut dollar-for-dollar if First Illinois' closing equity falls below $82,437,826. Approval is close to locked: directors holding about 40.7% have signed voting agreements, leaving only about 226,000 shares (roughly 9.3%) needed. Closing is targeted for Q1 2027 after the December 11 vote and Fed, OCC and Illinois regulatory approvals.
How filings like this one have moved
In the 30 days to Oct 30, 2026, 30.5% of the 1545 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was 0.00%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, THFF was trading at $76.55 on NASDAQ in the Finance sector, with a market capitalization of approximately $910.3M. The 52-week trading range was $52.45 to $84.17. This filing was assessed with neutral market sentiment and an importance score of 7 out of 10.