Results of Operations and Financial Condition On July 23, 2026, the registrant, the bank holding company for The Bank of Princeton, issued a press release containing financial information regarding its financial condition and results of operations for the three and six months ended June 30, 2026. A copy of the press release and the accompanying financial statements are attached hereto as Exhibit 99.1 and are incorporated by reference into this

Other Events. On July 22, 2026, Princeton Bancorp, Inc. announced that its Board of Directors declared a cash dividend of $0.35 per share of common stock. The dividend will be payable August 28, 2026, to shareholders of record as of August 5, 2026. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated here by reference.

Results of Operations and Financial Condition On April 23, 2026, the registrant, the bank holding company for The Bank of Princeton, issued a press release containing financial information regarding its financial condition and results of operations for the three months ended March 31, 2026. A copy of the press release is furnished as Exhibit 99.1 hereto.

Other Events. On April 21, 2026, Princeton Bancorp, Inc. announced that its Board of Directors declared a cash dividend of $0.35 per share of common stock. The dividend will be payable May 28, 2026, to shareholders of record as of May 5, 2026. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated here by reference.

Results of Operations and Financial Condition On January 29, 2026, the registrant, the bank holding company for The Bank of Princeton, issued a press release containing financial information regarding its financial condition and results of operations for the three and twelve months ended December 31, 2025. A copy of the press release is furnished as Exhibit 99.1 hereto.

Other Events. On January 21, 2026, Princeton Bancorp, Inc. announced that its Board of Directors declared a cash dividend of $0.35 per share of common stock. The dividend will be payable February 27, 2026, to shareholders of record as of February 4, 2026. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated here by reference.

The filing describes an amendment to the Deferred Compensation Plan, which is a routine administrative matter.

Other Events. On October 29, 2025, Princeton Bancorp, Inc. announced that its Board of Directors declared a cash dividend of $0.35 per share of common stock. The dividend will be payable November 26, 2025, to shareholders of record as of November 7, 2025. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated here by reference.

Results of Operations and Financial Condition On October 29, 2025, the registrant, the bank holding company for The Bank of Princeton, issued a press release containing financial information regarding its financial condition and results of operations for the three and nine months ended September 30, 2025. A copy of the press release is furnished as Exhibit 99.1 hereto.

Other Events On July 23, 2025, Princeton Bancorp, Inc. announced that its Board of Directors declared a cash dividend of $0.30 per share of common stock. The dividend will be payable August 29, 2025, to shareholders of record as of August 6, 2025. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated here by reference.

Material Impairments. As previously reported, at March 31, 2025, the Registrant’s non-performing assets totaled $26.5 million, $25.3 million of which was attributable to the delinquency of two commercial real estate loans with collateral supporting each loan. The Registrant is a participant in these loans, and the lead bank is in the process of placing the collateral for these loans on the market for possible sale. Based on the bids received for such loans, on May 28, 2025, the Registrant’s B…

Other Events On April 22, 2025, Princeton Bancorp, Inc. announced that its Board of Directors declared a cash dividend of $0.30 per share of common stock. The dividend will be payable May 29, 2025, to shareholders of record as of May 6, 2025. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated here by reference.

Other Events On January 22, 2025, Princeton Bancorp, Inc. announced that its Board of Directors declared a cash dividend of $0.30 per share of common stock. The dividend will be payable February 28, 2025, to shareholders of record as of February 5, 2025. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated here by reference.

Results of Operations and Financial Condition On October 29, 2024, the registrant, the bank holding company for The Bank of Princeton, issued a press release containing financial information regarding its financial condition and results of operations at and for the three and nine months ended September 30, 2024. A copy of the press release is furnished as Exhibit 99.1 hereto.

Other Events On October 22, 2024, Princeton Bancorp, Inc. announced that its Board of Directors declared a cash dividend of $0.30 per share of common stock. The dividend will be payable November 28, 2024, to shareholders of record as of November 5, 2024. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated here by reference.

Results of Operations and Financial Condition On July 25, 2024, the registrant, the bank holding company for The Bank of Princeton, issued a press release containing financial information regarding its financial condition and results of operations at and for the three and six months ended June 30, 2024. A copy of the press release is furnished as Exhibit 99.1 hereto.

Other Events On July 24, 2024, Princeton Bancorp, Inc. announced that its Board of Directors declared a cash dividend of $0.30 per share of common stock. The dividend will be payable August 30, 2024, to shareholders of record as of August 9, 2024. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated here by reference.

Results of Operations and Financial Condition On April 25, 2024, the registrant, the bank holding company for The Bank of Princeton, issued a press release containing financial information regarding its financial condition and results of operations at and for the three months ended March 31, 2024. A copy of the press release is furnished as Exhibit 99.1 hereto.

Other Events On April 24, 2024, Princeton Bancorp, Inc. announced that its Board of Directors declared a cash dividend of $0.30 per share of common stock. The dividend will be payable May 31, 2024 to shareholders of record as of May 10, 2024. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated here by reference.

Results of Operations and Financial Condition On January 25, 2024, the registrant, the bank holding company for The Bank of Princeton, issued a press release containing financial information regarding its financial condition and results of operations at and for the three and twelve months ended December 31, 2023. A copy of the press release is furnished as Exhibit 99.1 hereto.

Other Events On January 24, 2024, Princeton Bancorp, Inc. announced that its Board of Directors declared a cash dividend of $0.30 per share of common stock. The dividend will be payable March 1, 2024 to shareholders of record as of February 9, 2024. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated here by reference.

Other Events On January 18, 2024, Princeton Bancorp and Cornerstone Financial Corporation (“ CFC ”) jointly issued a press release announcing that they had entered into a definitive agreement and plan of merger pursuant to which Princeton Bancorp will acquire CFC (the “ Transaction ”). A copy of the press release is attached hereto as Exhibit 99.2 and is incorporated herein by reference.

Entry Into A Material Definitive Agreement On January 18, 2024, Princeton Bancorp, Inc. (the “ Company ”), the holding company for The Bank of Princeton, a New Jersey chartered bank, entered into an Agreement and Plan of Merger (the “ Merger Agreement ”) with Cornerstone Financial Corporation, a New Jersey corporation (“ CFC ”) and holding company for Cornerstone Bank, a New Jersey chartered bank. Pursuant to the terms and conditions set forth in the Merger Agreement, CFC will merge with and…

Results of Operations and Financial Condition On October 26, 2023, the registrant, the bank holding company for The Bank of Princeton, issued a press release containing financial information regarding its financial condition and results of operations at and for the three and nine months ended September 30, 2023. A copy of the press release is furnished as Exhibit 99.1 hereto.

Other Events On October 25, 2023, Princeton Bancorp, Inc. announced that its Board of Directors declared a cash dividend of $0.30 per share of common stock. The dividend will be payable November 30, 2023 to shareholders of record as of November 13, 2023. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated here by reference.