{"url_path":"/sec/seer/proxy/2026-04-27/000119312526182182","section_key":"body","section_title":"DEFA14A body","topic":"sec","document":{"doc_type":"DEFA14A","doc_date":"2026-04-27","source_url":"https://www.sec.gov/Archives/edgar/data/1726445/0001193125-26-182182-index.html","accession_number":"0001193125-26-182182","cik":"0001726445","ticker":"SEER","issuer_name":"Seer, Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1726445/0001193125-26-182182-index.html","primary_entity_key":"0001726445","primary_entity_name":"Seer, Inc."},"word_count":602,"has_tables":true,"body_markdown":"DEFA14A\n1\nform_defa14a_revised_pro.htm\nDEFA14A\n\nDEFA14A\n\n \n\nUNITED STATES\n\nSECURITIES AND EXCHANGE COMMISSION\n\nWashington, D.C. 20549\n\n \n\nSCHEDULE 14A\n\n \n\nProxy Statement Pursuant to Section 14(a) of the\n\nSecurities Exchange Act of 1934\n\n \n\nFiled by the Registrant ☒\n\n \n\nFiled by a Party other than the Registrant  ☐\n\n \n\nCheck the appropriate box:\n\n☐\n\nPreliminary Proxy Statement\n\n☐\n\nConfidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))\n\n☐\n\nDefinitive Proxy Statement\n\n☐\n\nDefinitive Additional Materials\n\n☒\n\nSoliciting Material Pursuant to §240.14a-12\n\n \n\nSeer, Inc.\n\n(Name of Registrant as Specified In Its Charter)\n\n \n\n(Name of Person(s) Filing Proxy Statement, if other than the Registrant)\n\n \n\nPayment of the Filing Fee (Check the appropriate box):\n\n☒\n\nNo fee required.\n\n☐\n\nFee paid previously with preliminary materials.\n\n☐\n\nFee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\nUNITED STATES\n\nSECURITIES AND EXCHANGE COMMISSION\n\nWashington, D.C. 20549\n\n \n\n \n\nFORM 8-K\n\n \n\n \n\nCURRENT REPORT\n\nPursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934\n\nDate of Report (Date of earliest event reported):\n\nApril 27, 2026\n\n \n\n \n\nSeer, Inc.\n\n(Exact name of registrant as specified in its charter)\n\n \n\n \n\nDelaware\n\n \n\n001-39747\n\n \n\n82-1153150\n\n(State or other jurisdiction of\n\n \n\n(Commission\n\n \n\n(I.R.S. Employer\n\nincorporation)\n\n \n\nFile Number)\n\n \n\nIdentification No.)\n\n3800 Bridge Parkway, Suite 102\n\nRedwood City, California 94065\n\n(Address of principal executive offices, including zip code)\n\n650-453-0000\n\n(Registrant’s telephone number, including area code)\n\nNot Applicable\n\n(Former name or former address, if changed since last reports)\n\n \n\n \n\nCheck 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:\n\n \n\n☐\n\nWritten communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)\n\n☒\n\nSoliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)\n\n☐\n\nPre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))\n\n☐\n\nPre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))\n\n \n\nSecurities registered pursuant to Section 12(b) of the Act:\n\n \n\n \n\nTitle of each class\n\nTrading Symbol\n\nName of each exchange on which registered\n\nClass A Common Stock, par value $0.00001 per share\n\nSEER\n\nThe NASDAQ Global Select Market\n\nPreferred Stock Purchase Rights\n\nN/A\n\nThe NASDAQ Global Select Market\n\nIndicate 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).\n\nEmerging growth company ☐\n\nIf 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. ☐\n\n \n\n \n\n \n\n \n\nItem 8.01\n\nOther Events.\n\nOn April 27, 2026, Seer, Inc. issued a press release concerning the revised highly contingent, non-binding and unsolicited acquisition proposal received from Bradley L. Radoff, Michael Torok and certain of their affiliates on April 24, 2026.\n\nA copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.\n\n \n\n \n\n \n\nItem 9.01\n\nFinancial Statements and Exhibits.\n\n \n\n \n\nExhibit No.\n\n \n\nDescription\n\n[99.1](https://www.sec.gov/Archives/edgar/data/1726445/000119312526182155/ck0001726445-ex99_1.htm)\n\n \n\nPress Release dated April 27, 2026, titled “Seer Board of Directors Unanimously Rejects Revised Unsolicited Proposal from Radoff-JEC Group.”\n\n104\n\n \n\nCover Page from this Current Report on Form 8-K, formatted in Inline XBRL.\n\n \n\n \n\nSIGNATURES\n\nPursuant 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 hereunto duly authorized.\n\n \n\n \n\n \n\nSEER, INC.\n\n \n\n \n\n \n\n \n\n \n\nDate: April 27, 2026\n\n \n\nBy:\n\n \n\n/s/ David Horn\n\n \n\n \n\n \n\n \n\nDavid Horn\n\n \n\n \n\n \n\n \n\nPresident and Chief Financial Officer"}