Reg FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549   FORM 8-K   CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 9, 2023 PARSONS CORPORATION (Exact name of Registrant as Specified in Its Charter)     Delaware 001-07782 95-3232481 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)       5875 Trinity Parkway , #300 , Centreville , VA   20120 (Address of Principal Executive Offices)   (Zip Code) Registrant’s Telephone Number, Including Area Code: (703) 988-8500 Not Applicable (Former Name or Former Address, if Changed Since Last Report)   Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) 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, $1 par value   PSN   New York Stock Exchange Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter). Emerging growth company  ☐ 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.  ☐           Item 7.01. Regulation FD Disclosure.   Parsons Corporation (the “Company”) will host a virtual Investor Day at the New York Stock Exchange on March 15, 2023 at 9:00 a.m. ET.  A copy of the presentations that will be used by the Company for the virtual Investor Day can be found on the Company’s website at https://www.parsons.com/investor-day/ .  Access to a live webcast of the event can be obtained through the investor relations section of the company’s website.   The information contained and referenced in this Item 7.01 is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of Section 18 of the Exchange Act. The information in this Item 7.01 shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended, or into any filing or other document pursuant to the Exchange Act, except as otherwise expressly stated in any such filing.     Item 9.01   Financial Statements and Exhibits.   (d) Exhibits.                 Exhibit   Description       99.1   Press Release Dated March 9, 2023 Announcing The Company’s Investor Day 104   Cover Page Interactive Data File (embedded within the Inline XBRL document)   2       SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.       Parsons Corporation         Date: March 15, 2023   By: /s/ Michael R. Kolloway       Michael R. Kolloway       Chief Legal Officer   3