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BDO USA, P.C.

PCAOB firm ID 243 · Also written as: Horne LLP; HORNE LLP; BDO USA, PC · Red-flag filings since 2025-04-01 where this firm is identified

25going-concern opinions
24auditor changes as the departing firm
1 resigned · 13 dismissed · 8 routine
33auditor changes as the incoming firm

Going-concern opinions

FiledCompanyEventSeverity
2026-07-13Royale Energy, Inc. (ROYL)Going-concern doubt5
2026-04-15MANNATECH INC (MTEX)Going-concern doubt5
2026-04-14SunPower Inc. (SPWR)Going-concern doubt5
2026-04-10Quince Therapeutics, Inc. (QNCX)Going-concern doubt5
2026-04-01Aspira Women's Health Inc. (AWHL)Going-concern doubt5
2026-03-31Lyra Therapeutics, Inc. (LYRA)Going-concern doubt5
2026-03-31Direct Digital Holdings, Inc. (DRCT)Going-concern doubt5
2026-03-31Purple Innovation, Inc. (PRPL)Going-concern doubt5
2026-03-30Akari Therapeutics Plc (AKTX)Going-concern doubt5
2026-03-27AIM ImmunoTech Inc. (AIM)Going-concern doubt5
2026-03-26MetaVia Inc. (MTVA)Going-concern doubt5
2026-03-26P3 Health Partners Inc. (PIII)Going-concern doubt5
2026-03-24FTC Solar, Inc. (FTCI)Going-concern doubt5
2026-03-23ASHFORD HOSPITALITY TRUST INC (AHT)Going-concern doubt5
2026-03-17Cibus, Inc. (CBUS)Going-concern doubt5
2026-03-16Babcock & Wilcox Enterprises, Inc. (BW)Going-concern doubt5
2026-02-24Cardiff Oncology, Inc. (CRDF)Going-concern doubt5
2026-02-24INNOVATIVE INDUSTRIAL PROPERTIES INC (IIPR)Going-concern doubt5
2025-12-29CEL SCI CORP (CVM)Going-concern doubt5
2025-04-30SunPower Inc. (SPWR)Going-concern doubt5
2025-04-15Akari Therapeutics Plc (AKTX)Going-concern doubt5
2025-04-15SPRUCE BIOSCIENCES, INC. (SPRB)Going-concern doubt5
2025-04-14Innventure, Inc. (INV)Going-concern doubt5
2025-04-08GOLD RESOURCE CORP (GORO)Going-concern doubt5
2025-04-03CHARLES & COLVARD LTD (CTHR)Going-concern doubt5

Clients that changed away from BDO USA, P.C.

FiledCompanyEventSeverity
2026-06-22Investar Holding Corp (ISTR)Auditor change - routine (audit-firm merger)1
2026-06-02REDWOOD MORTGAGE INVESTORS VIIIAuditor change - dismissed3
2026-04-24Redwood Mortgage Investors IXAuditor change - dismissed3
2026-04-21Amprius Technologies, Inc. (AMPX)Auditor change - dismissed3
2026-04-13SPAR Group, Inc. (SGRP)Auditor change - dismissed3
2026-03-31Playboy, Inc. (PLBY)Auditor change - dismissed4
2026-03-20C1 Fund Inc. (CFND)Auditor change - dismissed3
2026-03-03Crinetics Pharmaceuticals, Inc. (CRNX)Auditor change - dismissed3
2026-02-26Norris Industries, Inc. (NRIS)Auditor change - changed5
2026-02-23Healthcare Realty Trust Inc (HR)Auditor change - changed3
2025-11-06USA Rare Earth, Inc. (USAR)Auditor change - routine (audit-firm merger)2
2025-11-05Shepherd's Finance, LLCAuditor change - routine (audit-firm merger)1
2025-11-04WYTEC INTERNATIONAL INC (WYTC)Auditor change - routine (audit-firm merger)2
2025-11-03HG Holdings, Inc. (STLY)Auditor change - resigned4
2025-11-03Investar Holding Corp (ISTR)Auditor change - routine (audit-firm merger)1
2025-11-03Norris Industries, Inc. (NRIS)Auditor change - routine (audit-firm merger)2
2025-11-03RENASANT CORP (RNST)Auditor change - routine (audit-firm merger)1
2025-11-03Royale Energy, Inc. (ROYL)Auditor change - routine (audit-firm merger)2
2025-08-18LIFECORE BIOMEDICAL, INC. \DE\ (LFCR)Auditor change - dismissed3
2025-07-18CERENOME, INC. (PSTV)Auditor change - dismissed4
2025-05-21zSpace, Inc. (ZSPC)Auditor change - dismissed4
2025-04-29Avidity Biosciences, Inc. (RNA)Auditor change - dismissed3
2025-04-22Phio Pharmaceuticals Corp. (PHIO)Auditor change - dismissed4
2025-04-11Backblaze, Inc. (BLZE)Auditor change - dismissed3

New engagements

FiledCompanyEventSeverity
2026-10-01Aureus Greenway Holdings Inc (PUSA)Auditor change - routine (post-merger auditor consolidation)2
2026-07-21American Well Corp (AMWL)Auditor change - dismissed3
2026-06-30BATTALION OIL CORP (BATL)Auditor change - dismissed3
2026-06-17DONEGAL GROUP INC (DGICA)Auditor change - dismissed3
2026-06-09Vireo Growth Inc. (VREOF)Auditor change - dismissed3
2026-05-08Enhanced Group Inc. (ENHA)Auditor change - routine (post-merger auditor consolidation)3
2026-04-28Corvex, Inc. (MOVE)Auditor change - routine (post-merger auditor consolidation)3
2026-04-16LanzaTech Global, Inc. (LNZA)Auditor change - dismissed4
2026-03-30ProCap Financial, Inc. (BRR)Auditor change - dismissed3
2026-03-19Better Home & Finance Holding Co (BETR)Auditor change - dismissed3
2026-03-17Karat Packaging Inc. (KRT)Auditor change - dismissed3
2026-01-20Ondas Inc. (ONDS)Auditor change - dismissed3
2025-12-03Cambium Networks Corp (CMBMF)Auditor change - dismissed4
2025-11-06Catalyst Bancorp, Inc. (CLST)Auditor change - routine (audit-firm merger)1
2025-11-06USA Rare Earth, Inc. (USAR)Auditor change - routine (audit-firm merger)2
2025-11-05Shepherd's Finance, LLCAuditor change - routine (audit-firm merger)1
2025-11-04WYTEC INTERNATIONAL INC (WYTC)Auditor change - routine (audit-firm merger)2
2025-11-03HG Holdings, Inc. (STLY)Auditor change - resigned4
2025-11-03Investar Holding Corp (ISTR)Auditor change - routine (audit-firm merger)1
2025-11-03Norris Industries, Inc. (NRIS)Auditor change - routine (audit-firm merger)2
2025-11-03RENASANT CORP (RNST)Auditor change - routine (audit-firm merger)1
2025-11-03Royale Energy, Inc. (ROYL)Auditor change - routine (audit-firm merger)2
2025-09-12BRC Group Holdings, Inc. (RILY)Auditor change - dismissed4
2025-07-16TSS, Inc. (TSSI)Auditor change - dismissed3
2025-07-15Arena Group Holdings, Inc. (AREN)Auditor change - dismissed3
2025-07-14GrowGeneration Corp. (GRWG)Auditor change - dismissed3
2025-07-09Stock Yards Bancorp, Inc. (SYBT)Auditor change - changed4
2025-07-01Forian Inc. (FORA)Auditor change - routine (audit-firm merger)1
2025-04-25USA Rare Earth, Inc. (USAR)Auditor change - dismissed4
2025-04-17Veradigm Inc. (MDRX)Auditor change - dismissed5
2025-04-10Solo Brands, Inc. (SBDS)Auditor change - dismissed4
2025-04-10Babcock & Wilcox Enterprises, Inc. (BW)Auditor change - dismissed4
2025-04-09Latch, Inc. (LTCH)Auditor change - dismissed4

Attributions come from the filings themselves (cover-page XBRL auditor tag, the audit report signature, the former auditor's EX-16 letter or the Item 4.01 text) and are shown only when we are confident; coverage is partial. A going-concern paragraph means the auditor flagged the client's financial position; it is not a criticism of the audit firm. Not investment advice.

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