DEFA14A

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. )

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 under §240.14a-12

BIOATLA, 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 14a-6(i)(1) and 0-11


						BioAtla, Inc. Important Notice Regarding the Availability of Proxy Materials

		P.O. BOX 8016, CARY, NC 27512-9903				Stockholders Meeting to be held on June 16, 2022
						For Stockholders of record as of April 18, 2022
						This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. This is not a ballot. You cannot use this notice to vote your shares. We encourage you to access and review all of the important information contained in the proxy materials before voting.
						To view the proxy materials, and to obtain directions to attend the meeting, go to: www.proxydocs.com/BCAB
						To vote your proxy while visiting this site, you will need the 12 digit control number in the box below.
						Under United States Securities and Exchange Commission rules, proxy materials do not have to be delivered in paper. Proxy materials can be distributed by making them available on the internet.


				For a convenient way to view proxy materials and VOTE go to
				www.proxydocs.com/BCAB
				Have the 12 digit control number located in the shaded box above available when you access the website and follow the instructions.

If you want to receive a paper or e-mail copy of the proxy material, you must request one. There is no charge to you for requesting a copy. In order to receive a paper package in time for this year’s meeting, you must make this request on or before June 06, 2022.

To order paper materials, use one of the following methods.

LOGO

INTERNET

www.investorelections.com/BCAB

LOGO

TELEPHONE

(866) 648-8133

LOGO

*E-MAIL

paper@investorelections.com

When requesting via the Internet or telephone you will need the 12 digit control number located in the shaded box above.

* If requesting material by e-mail, please send a blank e-mail with the 12 digit control number (located above) in the subject line. No other requests, instructions OR other inquiries should be included with your e-mail requesting material.


BioAtla, Inc.
		Meeting Type: Annual Meeting of Stockholders
		Date: Thursday, June 16, 2022
		Time: 8:00 AM, Pacific Time
		Place: Annual Meeting to be held live via the Internet. Please visit www.proxydocs.com/BCAB for more details.
		You must register to attend the meeting online and/or participate at www.proxydocs.com/BCAB
SEE REVERSE FOR FULL AGENDA

BioAtla, Inc.

Annual Meeting of Stockholders

MANAGEMENT RECOMMENDS A VOTE:

FOR ON PROPOSALS 1 AND 2

ONE YEAR FOR PROPOSAL 3

PROPOSAL

1.	Election of Class II Directors

1.01

Mary Ann Gray, Ph.D.

1.02

Susan Moran, M.D.

1.03

Lawrence Steinman, M.D.

2.	Ratify the appointment of Ernst & Young LLP as the independent registered public accounting firm of BioAtla, Inc. for the fiscal year ending December 31, 2022.

3	Approval on a non-binding, advisory basis, of the frequency of future votes on the compensation of the named executive officers.

NOTE:

Such other business as may properly come before the Annual Meeting or any adjournment or postponement thereof.