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

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐ Preliminary Proxy Statement

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

☐ Definitive Proxy Statement

☒ Definitive Additional Materials

☐ Soliciting Material pursuant to §240.14a-12

SANDY SPRING BANCORP, INC.

(Name of Registrant as Specified in Its Charter)

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

Payment of Filing Fee (Check the appropriate box):

☒ No fee required.

☐ Fee paid previously with preliminary materials.

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

You invested in SANDY SPRING BANCORP, INC. and it's time to vote!

You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the shareholder meeting to be held on May 22, 2024.

Get informed before you vote

View the Form 10-K, Notice & Proxy Statement online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 08, 2024. If you would like to request a copy of the material(s) for this and/or future shareholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy.

*If you choose to vote these shares in person at the meeting, you must request a “legal proxy.” To do so, please follow the instructions at www.ProxyVote.com or request a paper copy of the materials, which will contain the appropriate instructions. Please check the meeting materials for any special requirements for meeting attendance.

 Vote at www.ProxyVote.com Control #

 THIS IS NOT A VOTABLE BALLOT   This is an overview of the proposals being presented at the
upcoming shareholder meeting. Please follow the
instructions on the reverse side to vote these important
matters.

Voting Items		Board Recommends
1.	Election of Directors
	Nominees:
1A	Ralph F. Boyd	For
1B	Mark C. Michael	For
1C	Robert L. Orndorff	For
1D	Daniel J. Schrider	For
2.	Vote, on an advisory basis, to approve the compensation for the named executive officers.	For
3.	Ratify the appointment of Ernst & Young LLP as the company's independent registered public accounting firm for 2024.	For
4.	Approve the Sandy Spring Bancorp, Inc. 2024 Equity Plan.	For
NOTE: Such other business as may properly come before the meeting or any adjournment thereof.

Under New York Stock Exchange rules, brokers may vote “routine” matters at their discretion if your voting instructions are not communicated to us at least 10 days before the meeting. We will nevertheless follow your instructions, even if the broker’s discretionary vote has already been given, provided your instructions are received prior to the meeting date.

FLASHID-JOB#