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Preliminary Proxy Statement

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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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Fee paid previously with preliminary materials.

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MMMMMMMMMMMM + C 1234567890 000004 ENDORSEMENT_LINE______________ SACKPACK_____________ MR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 ADD 5 ADD 6 Online Go to www.envisionreports.com/PLMR or scan the QR code — login details are located in the shaded bar below. Votes submitted electronically must be received by 11:59 PM Pacific Time May 26 2021. Important notice regarding the Internet availability of proxy materials for the 2021 Annual Meeting of Stockholders. The Notice, proxy statement, and 2020 annual report are available at: www.envisionreports.com/PLMR Under Securities and Exchange Commission rules, you are receiving this notice that the proxy materials for the annual stockholders’ meeting are available on the Internet. Follow the instructions below to view the materials and vote online or request a copy. The items to be voted on and location of the annual meeting are on the reverse side. Your vote is important! This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. The 2020 proxy statement and annual report to shareholders are available at: www.envisionreports.com/PLMR Easy Online Access — View your proxy materials and vote. Step 1: Step 2: Step 3: Step 4: Step 5: Go to www.envisionreports.com/PLMR Click on Cast Your Vote or Request Materials. Follow the instructions on the screen to log in. Make your selections as instructed on each screen for your delivery preferences. Vote your shares. When you go online, you can also help the environment by consenting to receive electronic delivery of future materials. Obtaining a Copy of the Proxy Materials – If you want to receive a copy of the proxy materials, you must request one. There is no charge to you for requesting a copy. Please make your request as instructed on the reverse side on or before May 17, 2021 to facilitate timely delivery. + 2 N O T C O Y 03F4IF MMMMMMMMM 2021 Annual Stockholder Meeting Notice1234 5678 9012 345

Palomar Holding, Inc.’s 2021 Annual Meeting of Stockholders will be held on Thursday, May 27, 2021, at our Corporate Headquarters, 7979 Ivanhoe Avenue, Suite 500, La Jolla, CA at 9:00 a.m. Pacific Time. Proposals to be voted on at the meeting are listed below along with the Board of Directors’ recommendations. The Board of Directors recommend a vote FOR all the nominees listed, FOR Proposals 2 and 4 and for every 1 YEAR on Proposal 3: 1. Election of Class II Directors:* 01 - Richard H. Taketa 02 - Catriona M. Fallon To hold an advisory vote to approve executive compensation (the “Say-on-Pay” vote); To hold an advisory vote on the frequency of holding an advisory vote to approve executive compensation. To ratify the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for its fiscal year ending December 31, 2021. 2. 3. 4. * each to serve until the 2024 annual meeting of stockholders. PLEASE NOTE – YOU CANNOT VOTE BY RETURNING THIS NOTICE. To vote your shares you must go online or request a paper copy of the proxy materials to receive a proxy card. If you wish to attend and vote at the meeting, please bring this notice with you. Here’s how to order a copy of the proxy materials and select delivery preferences: Current and future delivery requests can be submitted using the options below. If you request an email copy, you will receive an email with a link to the current meeting materials. PLEASE NOTE: You must use the number in the shaded bar on the reverse side when requesting a copy of the proxy materials. Internet – Go to www.envisionreports.com/PLMR. Click Cast Your Vote or Request Materials. Phone – Call us free of charge at 1-866-641-4276. Email – Send an email to investorvote@computershare.com with “Proxy Materials Palomar Holdings, Inc.” in the subject line. Include your full name and address, plus the number located in the shaded bar on the reverse side, and state that you want a paper copy of the meeting materials. To facilitate timely delivery, all requests for a paper copy of proxy materials must be received by May 17, 2021. — — — 2021 Annual Stockholder Meeting Notice