Exhibit 5.1

601 Lexington Avenue
New York, NY 10022
United States
+1 212 446 4800
www.kirkland.com
January 30, 2023
BigBear.ai Holdings, Inc.
6811 Benjamin Franklin Drive, Suite 200
Columbia, Maryland 21046
| Re: | Registration Statement on Form S-3 |
Ladies and Gentlemen:
We are issuing this opinion letter in our capacity as special legal counsel to BigBear.ai Holdings, Inc., a Delaware corporation (the “Company”). This opinion letter is being delivered in connection with the preparation of the Registration Statement on Form S-3 (such Registration Statement, as it may be subsequently amended or supplemented, is hereinafter referred to as the “Registration Statement”) initially filed with the Securities and Exchange Commission (the “Commission”) on January 30, 2023 under the Securities Act of 1933, as amended (the “Securities Act”), by the Company.
The Registration Statement relates to the resale or distribution from time to time by the selling stockholder (the “Selling Stockholder”) named in the prospectus contained in the Registration Statement and any supplement thereto or its permitted transferees of (A) up to 13,888,889 shares (the “Private Placement Shares”) of common stock, par value $0.0001 per share (“Common Stock”), and (B) up to 13,888,889 shares (the “Warrant Shares”) of Common Stock issuable upon the exercise of the warrant, having an exercise price of $2.39 per share of Common Stock (the “Warrant”). The Private Placement Shares and the Warrant Shares are collectively referred to herein as the “Securities.”
In connection with the registration of the Securities, we have examined originals, or copies certified or otherwise identified to our satisfaction, of such documents, corporate records and other instruments as we have deemed necessary for the purposes of this opinion, including: (i) the organizational documents of the Company, (ii) resolutions of the Company with respect to the issuance and registration of the Securities, and (iii) the Registration Statement and the exhibits thereto.
For purposes of this opinion, we have assumed the authenticity of all documents submitted to us as originals, the conformity to the originals of all documents submitted to us as copies and the authenticity of the originals of all documents submitted to us as copies. We have also assumed
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