Under the Agreement and Plan of Merger dated January 9, 2025, each outstanding share of ESSA common stock is converted into the right to receive a fixed 0.8547 shares of CNB common stock, with no collar or walk-away provision disclosed in the agreement. At signing, the transaction consideration was valued at approximately $214 million in the aggregate, or approximately $21.10 per ESSA share, based on CNB's 10-day volume-weighted average stock price of $24.69 as of January 8, 2025. The merger is structured to be a tax-free exchange for ESSA shareholders for U.S. federal income tax purposes. No separate EV/EBITDA, price-to-earnings, or price-to-tangible-book-value multiple for the transaction was disclosed in the sources reviewed.

CNB stated the combined company is expected to have approximately $8 billion in total assets, $7 billion in total deposits, and $6 billion in total loans. CNB projected the merger would be approximately 35% accretive to its diluted earnings per share in 2026, inclusive of fully phased-in cost synergies, with tangible book value per share dilution at transaction close of approximately 15% and an estimated earnback period of approximately 3.3 years. CNB further projected pro forma 2026 return on average tangible common equity of approximately 16% and return on average assets of approximately 1.3%, with an estimated pro forma tangible common equity to tangible asset ratio of approximately 7.7%, a Common Equity Tier 1 ratio of approximately 10.7%, and a loan-to-deposit ratio of approximately 89% at transaction close. No specific dollar figure or percentage for expected cost synergies/savings, nor a phase-in schedule beyond the accretion/dilution figures above, was disclosed in the sources reviewed.

CNB President and CEO Michael D. Peduzzi said, "We are excited to partner with ESSA which shares such a strong banking tradition with CNB. This combination aligns two high performing banks with an exceptional commitment to client-focused services for its customers and financial support to sustain the economic vitality of the communities in which they operate." He added that the deal "expands CNB's services to eastern Pennsylvania and the greater Lehigh Valley market without any branch overlap," that the pro forma deposit franchise is expected to rank the combined company in the Top 10 in Pennsylvania and Top 3 in the greater Lehigh Valley, and cited CNB's experience as "a seasoned acquiror" as a factor reducing execution risk. ESSA President and CEO Gary S. Olson said, "CNB is a powerful partner for our bank that closely mirrors our culture and values, making the transaction a natural fit. CNB's multi-state, multi-brand business model fosters our entrepreneurial spirit, and continues our commitment and presence in eastern Pennsylvania."

Under the merger agreement, CNB and CNB Bank each agreed to add three ESSA directors to their boards following closing: Gary S. Olson (ESSA's President, CEO and a director), Robert C. Selig Jr. (ESSA's Chairman), and Daniel J. Henning (an ESSA director). Mr. Olson also took on a role as strategic advisor to CNB's CEO, and CNB Bank formed a Board of Advisors for the ESSA Bank division. Headquartered in Stroudsburg, Pennsylvania, ESSA operated 20 community offices across the Lehigh Valley, Greater Pocono, Scranton/Wilkes-Barre, and suburban Philadelphia areas prior to closing.

The merger agreement provides for a termination fee of $8,800,000 payable by ESSA to CNB under specified circumstances, including termination in connection with ESSA's board accepting a superior proposal, or if ESSA enters into, or consummates, a definitive agreement for an alternative acquisition proposal within 12 months after CNB terminates the agreement following a willful breach by ESSA connected to a publicly known competing proposal. The agreement states this fee constitutes liquidated damages and is CNB's sole monetary remedy in the specified termination circumstances. No other bidders or negotiation history ahead of signing were disclosed in the sources reviewed (a full merger proxy/prospectus narrative, such as a "Background of the Merger" section, was not independently fetched).

The merger was unanimously approved by both companies' boards of directors. ESSA shareholders approved the merger proposal at a Special Meeting held April 15, 2025, with 7,497,798 shares voted for, 535,187 against, 90,852 abstaining, and 732,512 broker non-votes, out of 10,154,664 shares outstanding and 8,856,349 shares represented at the meeting (a quorum). The transaction subsequently closed on July 23, 2025, with CNB confirming completion in a July 24, 2025 press release. On closing, CNB Bank's branch network extended into northeastern Pennsylvania, including the Lehigh Valley, bringing CNB Bank to 78 branches across a four-state footprint (versus 55 branches cited in the January 2025 announcement), with consolidated assets exceeding $8.0 billion post-closing. The deal is stock-for-stock, so no new acquisition debt or separate cash consideration component was disclosed.

On the acquirer side, CNB retained Stephens Inc. as its exclusive financial advisor and Hogan Lovells US LLP as its legal advisor; Piper Sandler & Co rendered a fairness opinion to CNB's board. On the target side, ESSA engaged PNC FIG Advisory, part of PNC Capital Markets LLC, as its exclusive financial advisor, which also rendered a fairness opinion to ESSA's board; ESSA's legal advisor was Luse Gorman LLP (referenced as Luse Gorman, PC in the closing press release).