First Bancorp, Inc /ME/

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549​

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934 (Amendment No. )

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Preliminary Proxy Statement

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Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

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Definitive Proxy Statement

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Definitive Additional Materials

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Soliciting Material under §240.14a-12

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The First Bancorp, Inc.

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(Name of Registrant as Specified in Its Charter)

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(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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Fee paid previously with preliminary materials.

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Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a6(i)(1) and 0-11.

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Message from Our Chief Executive Officer

Dear Shareholders:

The improved operating performance we began to experience in late 2024 accelerated in 2025. Through a combination of loan growth, core deposit growth, lower market interest rates, and other on- and off-balance sheet strategies, the Bank’s net interest margin improved considerably year-over-year. Margin expansion, in turn, led to strong growth in net interest income, which coupled with increased non-interest income and managed operating expenses, produced our best earnings in several years.

Net income for your Company in 2025 was $34.4 million, an increase of 27.2% from the $27.0 million earned in 2024. On a fully diluted per share basis earnings were $3.07, up $0.64 or 26.4% from 2024. Cash dividends paid to shareholders in 2025 totaled $1.47 per share.

In 2025, the Bank originated over $538 million in new loans, demonstrating our ongoing commitment to serving the businesses, consumers, and communities of Mid-Coast and Eastern Maine. Core deposits grew $77 million during the year, enabling a reduction in high-cost wholesale funding. Operating metrics reflect the Company’s improved earnings performance with Pre-Tax, Pre-Provision (PTPP) (non-GAAP) Return on Average Assets of 1.37% and PTPP Return on Average Tangible Equity of 18.46% for 2025, up from 1.09% and 15.12% respectively in 2024.

2025 Financial Highlights

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Net Income $34.4 million, up 27.2% from prior year

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Tangible book value increased 13.2% to $22.49 per share

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Diluted Earnings Per Share of $3.07, up 26.4% from prior year

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Shareholder Dividends of $1.47 per share

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Total loans grew $53.2 million

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Core deposits grew $77.0 million

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Efficiency ratio (non-GAAP) improved to 52.09%

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Total Assets of $3.17 Billion

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Succession Planning & Retirements

In 2026, the Company will recognize the retirements of several long-tenured employees whose experience and dedication have been integral to the Bank’s success. Tammy Plummer, EVP and Chief Information Officer, will retire this summer after more than 33 years with the Bank, including 13 years on the Executive Management Team; Brad Martin has been hired as her successor to allow for an overlap and a successful transition. The Company also recognizes the retirements of Terri Geroux, VP Systems & Operations Consultant, who retired in February after nearly 44 years of service; Brenda Feltis, Loan Processing Associate II, after 34 years of service; Sherry Smith, Senior Mortgage Loan Officer after 33 years of service; Carrie Warren, VP and Senior Executive Assistant after 30 years of service; Patti Gwara, VP Loan Project Coordinator, after 27 years of service; John MacVane, VP Information/Cyber Security Analyst, after 12 years of service; and Foster Stroup, Senior Administrative Assistant, after 7 years.

We also extend our sincere appreciation to Bruce Tindal, who concludes his service to the Board this year. He has served as Board Chair since 2023, and has been a member of the Board since 1999. His long-standing leadership, guidance, and commitment have been instrumental in the Company’s success.

Supported by an experienced management team and engaged Board

of Directors, we

remain well positioned to navigate change and pursue the Company’s long-term objectives.

Employee Engagement

Since the launch of our strategic planning efforts in 2014, we have emphasized fostering a workplace where employees feel connected to our mission and long-term goals. We believe our role as an employer extends beyond compensation and benefits, to ensuring our team understands the meaningful impact they have on our shared success. Through continued employee engagement efforts, we remain committed to building alignment, purpose, and pride across the organization.

In the summer of 2025, the Company participated in the Best Places to Work in Maine program, an independent evaluation based largely on confidential employee feedback. We were honored to be recognized as a Best Place to Work in Maine and ranked #3 among large employers, reflecting our ongoing focus on employee engagement and workplace culture.

Thank You

I am grateful for the continued support and confidence of our shareholders. Supported by an experienced management team and engaged Board of Directors, we remain well-positioned to navigate change and pursue the Company’s long-term objectives.

Notice of 2026 Annual Meeting of Shareholders

Items of Business

How to Vote

Regardless of the number of shares you own, your vote is important. Whether or not you expect to attend the meeting, the prompt return of your proxy will save follow-up expenses and assure the proper representation of your shares.

You may revoke your proxy if you so desire at any time before it is voted.

Have your proxy card or voting instruction form with your 16-digit control number and follow the instructions below.

DEADLINE

Vote by 11:59 P.M. ET on 04/28/2026 for shares held directly and by 11:59 P.M. ET on 04/26/2026 for shares held in a Plan.

If you are a beneficial owner, please refer to the information provided by your broker, bank or other nominee.

This Proxy Statement is being furnished to Shareholders of The First Bancorp, Inc. (the “Company”), the parent company of First National Bank (the “Bank”), in connection with the solicitation of Proxies on behalf of the Board of Directors, to be used at the virtual Annual Meeting of Shareholders of the Company to be accessed at

www.virtualshareholdermeeting.com/​FNLC2026, on Wednesday, April 29, 2026, at 11:00 a.m. Eastern Daylight Time, and at any adjournment thereof for matters described in the Notice of Annual Meeting of Shareholders. This Proxy Statement is first being mailed to Shareholders on or about March 16, 2026. This solicitation is made by the Company, which will bear the expenses thereof.

The Proxy solicited hereby, if properly signed and returned to the Company and not revoked prior to its use, will be voted in accordance with the instructions contained therein. If no contrary instructions are given, each Proxy received will be voted FOR the nominees for Directors described herein, FOR approval of the executive compensation and FOR the one-year voting for Say When On Pay and the matters described below and upon the transaction of such other business as may properly come before the meeting, in accordance with the best judgment of the persons appointed as Proxies; provided, however, that broker non-votes will not be voted in favor of the election of Directors.

Directors are elected by the vote of the holders of a majority of the outstanding shares of stock entitled to vote at the meeting. To be approved, any other matters submitted to our shareholders, including the ratification of BDMP Assurance, LLP as our independent auditors, require the affirmative

vote of the holders of the majority of shares present in person or represented by proxy at the annual meeting and entitled to vote.

Shares that abstain from voting as to a particular matter will be counted for purposes of determining whether a quorum exists and for purposes of calculating the vote with respect to such matter but will not be deemed to have been voted in favor of such matter. Shares held in “street name” by banks, brokers or other nominees who indicate on their proxy cards that they do not have discretionary authority to vote such shares as to a particular matter, which we refer to as “broker non-votes” will be counted for the purpose of determining whether a quorum exists but will not be considered as present and entitled to vote with respect to a particular matter unless the beneficial owner(s) of the shares instruct(s) such record holder how to vote such shares. Accordingly, abstentions will have the effect of a vote against a proposal, and broker non-votes will not have any effect upon the outcome of voting with respect to any matters voted on at the annual meeting (but will have the effect of negative votes with respect to the election of Directors).

By Order of the Board of Directors,

Christopher J. Austin,

Clerk

March 16, 2026

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