Columbia Financial to acquire Northfield Bancorp in $597 million deal and pursue full public listing to accelerate growth and unlock value

Columbia Financial, the Fair Lawn, New Jersey–based bank holding company, has agreed to acquire Northfield Bancorp in a deal valued at about $597 million and will pursue a concurrent conversion from a mutual holding company to a fully public stock holding company, executives said. According to a company announcement and filings, the transaction and the “second step” conversion are expected to complete early in the third quarter of 2026, subject to regulatory and shareholder approvals. (GlobeNewswire; MarketBeat)

Columbia said the merger will fold Northfield Bank into Columbia Bank, creating a larger regional competitor with roughly $18 billion of pro forma assets and a branch network exceeding 100 locations across 14 New Jersey counties as well as Brooklyn and Staten Island. Management told investors the combined franchise would become the third-largest regional bank headquartered in New Jersey and would be positioned to capture the largest deposit share among community banks in the Brooklyn and Staten Island market. (Investing.com; Seeking Alpha)

Under the terms described by Columbia’s chief executive, Thomas Kemly, consideration will be paid in stock or cash, with cash available for up to 30% of Northfield’s outstanding shares. Columbia stated the deal price equates to about 0.86 times Northfield’s tangible book value; on a pro forma basis management estimated a per-share range of $14.25 to $14.65 pending the final appraisal required for the conversion. The company said an independent appraiser, RP Financial, will update its valuation prior to the S-1 filing and again before the conversion offering. (MarketBeat; Seeking Alpha)

Columbia’s leadership framed the transaction as a step toward faster earnings normalisation once converted, arguing the stock offering would remove what management called the minority discount attached to its mutual holding company structure. “Second step” was the phrase used repeatedly by executives to describe the conversion process. Management also outlined intended uses for proceeds including funding organic growth, repurchases after one year, cash dividends and potential repositioning of available-for-sale securities. (MarketBeat; TipRanks)

The company provided preliminary financial expectations tied to the appraisal. Columbia said it anticipates about 50% earnings accretion in 2027, an initial tangible book value dilution near 4.4%, and a tangible book value earnback period of roughly 1.8 years based on the appraiser’s preliminary range. Management characterised the pro forma operating profile as improved, targeting a 2027 return on average assets of about 1.06% and an efficiency ratio near 48%. (MarketBeat)

Post-closing governance and senior roles were outlined. Kemly said he will remain president and chief executive of the combined bank. Dennis Gibney, recently promoted, will serve as senior executive vice president and chief banking officer, and Steve Klein is expected to join as senior executive vice president and chief operating officer. The planned board would comprise 13 directors, with nine from Columbia and four from Northfield, including Klein. (MarketBeat; GlobeNewswire)

Executives characterised credit risk as manageable, pointing to conservative underwriting histories at both institutions and historically low non-performing asset levels. Columbia disclosed that its due diligence involved more than 70 personnel over a period exceeding 30 days, including reviews of a majority of commercial loan files and a full review of New York rent-regulated multifamily loans, non-performing loans and classified credits. Columbia and an external reviewer reported 11 loans with collateral shortfalls aggregating $2.7 million. (MarketBeat; Seeking Alpha)

Management provided detail on Northfield’s rent-regulated multifamily exposure in New York, which totals about $419 million. They described this portfolio as diversified, with average loan sizes near $1.7 million, a weighted-average loan-to-value under 50% and a debt-service coverage ratio around 1.6x. Columbia said aggregate charge-offs over the past decade on that portfolio totalled $414,000 and that only one rent-regulated loan was on non-accrual with a $2 million balance, attributed to documentation issues while payments continued. Columbia disclosed a credit mark on Northfield’s loan book of $81 million, roughly 2.1% of loans and more than twice Northfield’s current reserves; the company said the mark on the rent-regulated portfolio comprises a 7% credit mark and a 7% interest-rate mark. (MarketBeat)

Executives signalled a strategic shift away from the thrift model toward greater emphasis on commercial and industrial lending while noting room to expand commercial real estate lending given pro forma CRE-to-capital metrics. Columbia indicated it may consider selling portions of the rent-regulated multifamily portfolio and has engaged with market participants about potential pricing, adding that any sale expectations would fall within the marks taken during diligence. Management also said bank M&A would be “de-emphasized for the next 18 months” while integration and performance optimisation are prioritised. (MarketBeat; Seeking Alpha)

The companies emphasised the deal’s strategic rationale as market expansion and deposit growth, Columbia expects roughly $1.8 billion of incremental New Jersey deposits and entry into densely populated, economically varied borough markets. Industry press releases and filings set the timeline for regulatory review and shareholder votes with completion contingent on customary closing conditions and Federal Reserve non-objection to the conversion. (GlobeNewswire; Investing.com)

Analysts and investors will watch the final appraisal, upcoming S-1 disclosures and regulatory review closely, as those elements will determine the precise exchange ratios and the mix of cash versus stock consideration. Columbia’s public filings and investor presentations accompanying the announcement supply the detailed assumptions management used in its pro forma projections and will form the basis for further scrutiny as the companies proceed toward the expected early third-quarter 2026 close. (Advfn; TipRanks)