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Matthew Brown

Self-identified author of the 'Immaculate Constellation' whistleblower report, public since April 2025, who asked Trump in 2026 to waive his NDA.

Current role: Self-identified author of the 'Immaculate Constellation' whistleblower report, speaking publicly as a UAP whistleblower and describing himself as a national security and policy analyst (as of 2026-09-20)

Former roles:

  • Analyst in Department of Defense and State Department roles, later an independent defence-industry contractor (by his own account and as described by Judicial Watch and IBTimes UK, employers and dates not public)

Background

Matthew Brown says he is the previously anonymous author of the "Immaculate Constellation" report, an 11-page document that journalist Michael Shellenberger published in October 2024 and introduced at a House Oversight joint subcommittee hearing on 13 November 2024. The report describes an alleged unacknowledged special access program collecting imagery and signature intelligence on UAP. Brown went public on Weaponized on 29 April 2025, describing himself as a former Defense and State Department analyst. The Pentagon says it has no record of such a program, and his account has not been independently verified.

On the record

  • 2026-09-20 – public request to President Trump, with Grusch and Borland, as reported by IBTimes UK (venue not specified) – urged release from non-disclosure obligations, citing "one simple fact: we are not alone". IBTimes UK
  • 2026-07-28 – Judicial Watch's "On Watch" with Chris Farrell – appeared as a whistleblower on Immaculate Constellation, described by Judicial Watch as a "U.S. national security and policy analyst". Judicial Watch · YouTube
  • 2026-03-27 – to Liberation Times – denied allegations relayed by Corbell from an unnamed ODNI official (below), and said the Director's Initiative Group meeting focused less on his UAP claims than on which classified compartments he had accessed. Liberation Times
  • 2026-03-18 – Weaponized follow-up – per the episode description, said a meeting with the ODNI Director's Initiative Group UAP effort felt more like an intelligence operation than a review of his testimony, and described losing his government job and facing reputational attacks since coming forward. Apple Podcasts
  • 2025-05-06 – Weaponized Part 2 – alleged that former AARO director Sean Kirkpatrick misled Congress, and acknowledged he had no proof. Weaponized · Update #90
  • 2025-04-29 – Weaponized #74, Part 1, with Corbell and Knapp – identified himself as the report's author and described an ongoing UAP data-collection system siloed from the wider Defense Department: "The secrecy that has been defended, is at the cost - in my mind - of human dignity, freedom and progress. And, it is no longer permissible or acceptable in my mind to continue this course. To deprive another generation of - not just Americans, but humanity - their birthright to know who they are, where they came from, and what's with us." Weaponized · Update #89

Reported claims (secondary / anonymous-sourced)

  • 2026-03-27 – Liberation Times, per Jeremy Corbell citing an unnamed ODNI official – Corbell said the official described Brown in a SCIF as racist and antisemitic and claimed Brown had admitted fabricating his account of seeing an Immaculate Constellation document. Brown denies all of it. ODNI said SCIF discussions do not automatically confer whistleblower protections. Liberation Times
  • 2024-11-13 – Michael Shellenberger, House Oversight joint subcommittee hearing – introduced the report, first published by Public in October 2024, from an unnamed source whose credentials he said he had verified. Brown later said he was that source. Hearing page · NewsNation · Oct 2024 post

Responses and criticism

  • 2024-11 – DoD spokesperson Sue Gough to NewsNation: "The Department of Defense has no record, present or historical, of any type of SAP called 'IMMACULATE CONSTELLATION,'" NewsNation
  • 2026-09-30 – David Grusch, Joe Rogan Experience #2560, asked about Brown's account that a briefing Brown saw had been authored by Grusch: "I didn't even know Matt Brown until right before the 2024 hearing." JRE
  • 2025-12-10 – the final FY2026 NDAA contained no Immaculate Constellation language. DefenseScoop
  • AARO's standing position – the 2024 Historical Record Report found "no empirical evidence" for hidden reverse-engineering programs. Report PDF

Timeline of involvement

  • 2024-10 – "Immaculate Constellation" report published by Public, author anonymous
  • 2024-11-13 – Shellenberger introduces the report at the House Oversight joint hearing, Pentagon denies any record of the program
  • 2025-04-29 – goes public on Weaponized as the report's author
  • 2026-03-18 – Weaponized follow-up on the Director's Initiative Group meeting
  • 2026-03-27 – Liberation Times reports alleged SCIF smears, Brown denies the allegations
  • 2026-07-28 – Judicial Watch "On Watch" interview
  • 2026-09-20 – with Grusch and Borland, asks President Trump to waive NDAs

Part of the Key People in Disclosure series. Verified 2026-09-20. Spotted an error? Reach out.