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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 X ( 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 FORM 10 - K TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Commission file number : 001-39292 Delaware ( State or other jurisdiction of incorporation or organization ) Butterfly Network , Inc. ( Exact name of registrant as specified in its charter ) to Title of each class Class A common stock , $ 0.0001 Par Value Per Share Warrants to purchase one share of Class A common stock , each at an exercise price of $ 11.50 per share 530 Old Whitfield Street Guilford , Connecticut 06437 ( Address of principal executive offices ) ( Zip Code ) Registrant's telephone number , including code : ( 203 ) 689-5650 Securities registered pursuant to Section 12 ( b ) of the Exchange Act : Trading Symbol ( s ) BFLY BFLY WS 84-4618156 ( I.R.S. Employer Identification No. ) Name of each exchange on which registered The New York Stock Exchange The New York Stock Exchange Securities registered pursuant to Section 12 ( g ) of the Exchange 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 Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Exchange Act . Yes " No x No x 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 x 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 during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes x 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 .