Washington, D.C. 20549 UNITED STATES SECURITIES AND EXCHANGE COMMISSION FORM 10-K (Mark One) [☑] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR [ ☐ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _______ to _______ Commission File Number 1-3671 GENERAL DYNAMICS CORPORATION (Exact name of registrant as specified in its charter) Delaware State or other jurisdiction of incorporation or organization 13-1673581 I.R.S. Employer Identification No. 20190 Zip code 11011 Sunset Hills Road Reston, Virginia Address of principal executive offices (703) 876-3000 Registrant’s telephone number, including area code Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock GD New York Stock Exchange Securities registered pursuant to Section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes _ü_ No ___ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ___ No _ü_ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes _ü_ No ___ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes _ü_ No ___ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ___ Large accelerated filer _ü_ Accelerated filer ___ Non-accelerated filer ___ Smaller reporting company ___ ☐  Emerging growth company ___ ☐ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. Yes _ü_  ☑  No ___ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ___ No _ü_☐ ☑ The aggregate market value of the voting common equity held by non-affiliates of the registrant was $36,917,915,083 as of June 28, 2020 (based on the closing price of the shares on the New York Stock Exchange). 286,264,679 shares of the registrant’s common stock, $1 par value per share, were outstanding on January 31, 2021. Part III incorporates by reference information from certain portions of the registrant’s definitive proxy statement for the 2021 annual meeting of shareholders to be filed with the Securities and Exchange Commission within 120 days after the close of the fiscal year. DOCUMENTS INCORPORATED BY REFERENCE: