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Prospect Medical Holdings: owners, hospitals and bankruptcy

Research data: Prospect Medical Holdings: owners, hospitals and bankruptcy

This dataset contains the same public evidence as the dossier: participants, relationships, events, assertions and sources. Qualifications, replies and known outcomes are retained in JSON, JSONL and CSV. The scope and method explain which original records were accepted; this is not a copy of the original archive.

published
16 oct 2026
records as of
15 oct 2026
entities
148
sources
105
cite entities.csv

Downloads

As of 15 October 2026. 436 claims · 148 parties · 418 connections · 42 events · 105 sources

Scope and method

Covers Prospect Medical Holdings, Inc., its parent companies, hospital and physician subsidiaries, owners, officers, lenders, landlords and buyers, from the start of operations in 1996 to records retrieved on October 15, 2026. It relies on the documents retained by one research collection, which its own records describe as incomplete; documents outside that collection, including several court orders and settlement papers cited in it, were not read.

Every statement and relationship extracted from the retained documents was read and given a recorded decision, and each public claim was compared with the exact passage of its source document. Allegations were searched for across all retained document text for responses and outcomes, which are kept beside each claim. Sources other than allowlisted official records of the SEC, federal and state courts, state attorneys general and agencies, the U.S. Senate, the FTC and official registries are identified by category only. Personal details such as ages, birth dates, citizenship and home addresses are omitted. The review was carried out by an AI editor without independent human review.

chronology

  1. Prospect Medical Holdings' business begins operating c-id-origins
  2. PMH buys about 33% of Brotman Medical Center c-pub-brotman-stake
  3. Prospect Medical Group buys the ProMed Entities for $48 million c-pub-promed
  4. PMH buys Alta Healthcare System from Samuel Lee and the Topper family trust c-pub-alta-acquisition c-pub-alta-sellers
  5. American Stock Exchange suspends trading in PMH shares until June 18, 2008 c-pub-restatement
  6. Samuel Lee becomes PMH's chief executive officer c-pub-lee-background
  7. PMH issues $160 million of 12.75% senior secured notes c-pub-notes-2009
  8. Leonard Green proposes to buy all PMH shares for $7.50 each c-buy-approach
  9. Ivy Merger closes: Leonard Green funds take indirect control of PMH c-buy-merger c-buy-control-62
  10. PMH's last filings in the SEC's EDGAR record c-id-deregistration
  11. Debt-funded dividend to PMH shareholders, reported as $188 million or $100 million c-pay-2012-dividend
  12. Rhode Island Attorney General's decision on the CharterCARE joint venture c-ri-2014-application c-ri-2014-jv
  13. Prospect acquires Crozer-Keystone Health System's hospitals c-pa-acquisition
  14. Prospect acquires Eastern Connecticut Health Network c-ct-acquisitions
  15. $457 million dividend paid from $1.12 billion of new debt c-pay-2018-recap c-pay-2018-pya c-pay-mgmt-fees
  16. Sponsor and part of management contribute $41 million in cash c-pay-2019-dividend-infusion
  17. Sale-leaseback of hospital real estate to Medical Properties Trust closes c-mpt-2019-closing c-mpt-master-leases
  18. Ivy Holdings and Chamber Inc. sign the merger agreement c-coc-merger-agreement
  19. Rhode Island Attorney General approves the change of control with conditions c-coc-approval-2021
  20. Federal court gives final approval to the St. Joseph pension settlement c-ri-pension-litigation
  21. Agreement to sell the Connecticut hospitals to Yale New Haven Health for $435 million c-ct-yale-agreement
  22. Pennsylvania orders emergency services suspended at Delaware County Memorial Hospital c-pa-dcmh-2022
  23. The Centurion Foundation agrees to buy the CharterCARE system c-ri-centurion-agreement
  24. Recapitalisation with Centerbridge, Blue Torch and Medical Properties Trust c-mpt-2023-recap
  25. Rhode Island Attorney General sues PMH over the 2021 conditions c-ri-ag-suit-2023
  26. Rhode Island Department of Health issues an Immediate Compliance Order c-ri-ridoh-order-2023
  27. Yale New Haven Health sues to avoid closing the Connecticut purchase c-ct-yale-litigation
  28. Rhode Island conditionally approves the sale to The Centurion Foundation c-ri-approval-2024
  29. Pennsylvania Attorney General sues PMH, Prospect Crozer, Leonard Green and two directors c-pa-ag-suit-2024
  30. Agreement to sell the physician business to Astrana Health c-phy-astrana-agreement
  31. PMH and its hospital companies file for Chapter 11 c-ch11-filing
  32. Supreme Court of Pennsylvania reverses the Commonwealth Court in the Delaware County Memorial Hospital conversion case c-pa-ckhs-litigation
  33. Bankruptcy court approves the closure of certain Pennsylvania hospitals c-pa-closures-2025
  34. Astrana completes its purchase of most of the physician business c-phy-astrana-closing
  35. Remaining physician companies file for Chapter 11 c-phy-physician-chapter11
  36. Court approves the sale of the California hospital assets to NOR Healthcare Systems c-ca-sale-order
  37. Non-Released Parties Schedule filed in the Chapter 11 case c-ch11-non-released
  38. Bankruptcy court confirms the Amended Joint Chapter 11 Plan c-ch11-plan-path
  39. Chapter 11 plan becomes effective and the Prospect GUC Trust is created c-ch11-effective c-ch11-guc-trust
  40. The Centurion Foundation completes the purchase of the Rhode Island hospitals c-ri-closing-2026
  41. Cayman court orders Connecticut Healthcare Insurance Company (CHIC) to be wound up c-cap-winding-up
  42. U.S. court recognises CHIC's Cayman proceeding as a foreign main proceeding c-cap-chapter15

Sources 105

  1. src-001 · Company statementProspect Medical Holdings, Inc. Form 10-K for the fiscal year ended September 30, 2010 U.S. Securities and Exchange Commission (EDGAR)

    Form 10-K (FY2010), Items 1, 7, 10-13 and notes Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  2. src-002 · Court recordCourt record source · src-002 identified by category only · Court record
  3. src-003 · Regulatory recordRhode Island Attorney General decision on the Chamber Inc. / Ivy Holdings Inc. Hospital Conversions Act application Office of the Rhode Island Attorney General · 1 Jun 2021

    Decision of June 1, 2021, with conditions Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  4. src-004 · Corporate registrySEC EDGAR submissions record for Prospect Medical Holdings Inc (CIK 0001063561) U.S. Securities and Exchange Commission (EDGAR)

    Registrant metadata and filing index Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  5. src-005 · OtherLetter of the chair and ranking member of the U.S. Senate Budget Committee to Leonard Green & Partners, Prospect Medical Holdings and Medical Properties Trust Office of Senator Chuck Grassley, U.S. Senate · 6 Dec 2023

    Letter of December 6, 2023 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  6. src-006 · Court recordCourt record source · src-006 identified by category only · Court record
  7. src-007 · Company statementCompany statement source · src-007 identified by category only · Company statement
  8. src-008 · Regulatory recordSchedule 13D amendment filed by David R. Topper and Alexa Topper regarding Prospect Medical Holdings, Inc. (2008) U.S. Securities and Exchange Commission (EDGAR)

    Items 2-5 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  9. src-009 · Regulatory recordSchedule 13D amendment filed by Samuel S. Lee and group regarding Prospect Medical Holdings, Inc. (December 2010) U.S. Securities and Exchange Commission (EDGAR)

    Items 2-5 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  10. src-010 · Company statementChamber Inc. and Ivy Holdings Inc. Hospital Conversions Act application (resubmitted March 18, 2020) Office of the Rhode Island Attorney General (applicant filing) · 18 Mar 2020

    Application responses Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  11. src-011 · Company statementMedical Properties Trust press release on the Prospect recapitalisation, Exhibit 99.1 (May 2023) U.S. Securities and Exchange Commission (EDGAR) · May 2023

    Exhibit 99.1 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  12. src-012 · Court recordCourt record source · src-012 identified by category only · Court record
  13. src-013 · Court recordCourt record source · src-013 identified by category only · Court record
  14. src-014 · Company statementMedical Properties Trust third-quarter 2023 results release, Exhibit 99.1 U.S. Securities and Exchange Commission (EDGAR) · Oct 2023

    Exhibit 99.1 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  15. src-015 · Company statementProspect ECHN, Inc. annual affiliation report to Connecticut's Office of Health Care Access State of Connecticut, Office of Health Strategy (filer: Prospect ECHN, Inc.) · 9 Mar 2017

    Affiliation filing form, lines 1-4 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  16. src-016 · Corporate registryConnecticut business registry record: Prospect Manchester Hospital, Inc. State of Connecticut open data (Secretary of the State business registry)

    Registry record Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  17. src-017 · Corporate registryConnecticut business registry record: Prospect Rockville Hospital, Inc. State of Connecticut open data (Secretary of the State business registry)

    Registry record Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  18. src-018 · Company statementReal property asset purchase agreement among Prospect Medical Holdings, its subsidiaries and Medical Properties Trust companies, Exhibit 10.2 (July 10, 2019) U.S. Securities and Exchange Commission (EDGAR) · 10 Jul 2019

    Exhibit 10.2, preamble, price and signature pages Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  19. src-019 · Company statementSubsidiaries of Prospect Medical Holdings, Inc., Exhibit 21.1 to the 2009 annual report U.S. Securities and Exchange Commission (EDGAR)

    Exhibit 21.1 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  20. src-020 · Company statementAstrana Health, Inc. Form 8-K/A on the completed Prospect acquisition (event of July 1, 2025) U.S. Securities and Exchange Commission (EDGAR) · Jul 2025

    Items 2.01 and 9.01 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  21. src-021 · OtherOther source · src-021 identified by category only · Other
  22. src-022 · MediaMedia source · src-022 identified by category only · Media
  23. src-023 · Court recordCourt record source · src-023 identified by category only · Court record
  24. src-024 · Company statementCompany statement source · src-024 identified by category only · Company statement
  25. src-025 · Regulatory recordRhode Island Attorney General release on conditions imposed on the proposed hospital ownership change Office of the Rhode Island Attorney General · 20 Jun 2024

    Press release Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  26. src-026 · Company statementCompany statement source · src-026 identified by category only · Company statement
  27. src-027 · Company statementAstrana Health side letter to Prospect Medical Holdings on closing matters, Exhibit 10.2 (July 1, 2025) U.S. Securities and Exchange Commission (EDGAR) · 1 Jul 2025

    Exhibit 10.2 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  28. src-028 · Corporate registryConnecticut business registry record: Prospect Waterbury, Inc. State of Connecticut open data (Secretary of the State business registry)

    Registry record Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  29. src-029 · Corporate registryConnecticut business registry record: Prospect ECHN, Inc. State of Connecticut open data (Secretary of the State business registry)

    Registry record Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  30. src-030 · Company statementCompany statement source · src-030 identified by category only · Company statement
  31. src-031 · Company statementProspect Medical Holdings, Inc. Form 10-K for the fiscal year ended September 30, 2008 U.S. Securities and Exchange Commission (EDGAR)

    Form 10-K (FY2008), Items 1, 4, 10-13 and exhibits list Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  32. src-032 · Company statementProspect Medical Holdings, Inc. definitive merger proxy statement (Schedule 14A, 2010) U.S. Securities and Exchange Commission (EDGAR) · Nov 2010

    Background of the merger, ownership tables, annexes Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  33. src-033 · Court recordCourt record source · src-033 identified by category only · Court record
  34. src-034 · Court recordCourt record source · src-034 identified by category only · Court record
  35. src-035 · Court recordCourt record source · src-035 identified by category only · Court record
  36. src-036 · Court recordCourt record source · src-036 identified by category only · Court record
  37. src-037 · Court recordCourt record source · src-037 identified by category only · Court record
  38. src-038 · Regulatory recordSchedule 13D filed by Samuel S. Lee regarding Prospect Medical Holdings, Inc. (2007) U.S. Securities and Exchange Commission (EDGAR) · 2007

    Items 3-6 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  39. src-039 · Company statementCompany statement source · src-039 identified by category only · Company statement
  40. src-040 · ResearchResearch source · src-040 identified by category only · Research
  41. src-041 · Company statementProspect Medical Holdings, Inc. Form 10-Q for the quarter ended March 31, 2011 U.S. Securities and Exchange Commission (EDGAR) · May 2011

    Notes 1, 2 and 8; MD&A Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  42. src-042 · Regulatory recordForm ADV of Leonard Green & Partners, L.P. (annual amendment of March 31, 2026) U.S. Securities and Exchange Commission (Investment Adviser Public Disclosure) · 31 Mar 2026

    Item 1 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  43. src-043 · Company statementProspect Medical Holdings, Inc. Form 10-K for the fiscal year ended September 30, 2006 U.S. Securities and Exchange Commission (EDGAR)

    Form 10-K (FY2006), executive officers and legal proceedings Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  44. src-044 · Company statementCompany statement source · src-044 identified by category only · Company statement
  45. src-045 · Regulatory recordFTC early termination notice 20071528: Prospect Medical Holdings, Inc. / David & Alexa Topper Family Trust U.S. Federal Trade Commission · 15 Jun 2007

    Notice 20071528 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  46. src-046 · Company statementCompany statement source · src-046 identified by category only · Company statement
  47. src-047 · OtherOther source · src-047 identified by category only · Other
  48. src-048 · OtherOther source · src-048 identified by category only · Other
  49. src-049 · Regulatory recordFTC early termination notice 20251865: Mike Sarian / Sang Bum (Samuel) Lee U.S. Federal Trade Commission · 29 Sep 2025

    Notice 20251865 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  50. src-050 · Court recordCourt record source · src-050 identified by category only · Court record
  51. src-051 · MediaMedia source · src-051 identified by category only · Media
  52. src-052 · OtherOther source · src-052 identified by category only · Other
  53. src-053 · OtherOther source · src-053 identified by category only · Other
  54. src-054 · OtherOther source · src-054 identified by category only · Other
  55. src-055 · Company statementCompany statement source · src-055 identified by category only · Company statement
  56. src-056 · Company statementCompany statement source · src-056 identified by category only · Company statement
  57. src-057 · OtherOther source · src-057 identified by category only · Other
  58. src-058 · Court recordMemorandum and order dismissing a pro se complaint against Prospect Medical Holdings and others (E.D. Pa. No. 2:24-cv-00494) U.S. Government Publishing Office (GovInfo) · 9 Feb 2024

    Document 6 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  59. src-059 · Court recordCourt record source · src-059 identified by category only · Court record
  60. src-060 · OtherOther source · src-060 identified by category only · Other
  61. src-061 · Company statementCompany statement source · src-061 identified by category only · Company statement
  62. src-062 · OtherOther source · src-062 identified by category only · Other
  63. src-063 · OtherOther source · src-063 identified by category only · Other
  64. src-064 · OtherOther source · src-064 identified by category only · Other
  65. src-065 · OtherOther source · src-065 identified by category only · Other
  66. src-066 · Court recordCourt record source · src-066 identified by category only · Court record
  67. src-067 · Court recordCourt record source · src-067 identified by category only · Court record
  68. src-068 · Court recordCourt record source · src-068 identified by category only · Court record
  69. src-069 · Court recordCourt record source · src-069 identified by category only · Court record
  70. src-070 · Court recordCourt record source · src-070 identified by category only · Court record
  71. src-071 · Court recordOrder granting final approval of the class settlement in Del Sesto v. Prospect CharterCARE et al. (D.R.I. No. 1:18-cv-00328, Doc. 217) U.S. Government Publishing Office (GovInfo) · 29 Jul 2021

    Document 217 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  72. src-072 · Court recordCourt record source · src-072 identified by category only · Court record
  73. src-073 · Company statementProspect Medical Holdings, Inc. Form 8-K (July 2011) U.S. Securities and Exchange Commission (EDGAR) · Jul 2011

    Items 5.07 and 8.01 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  74. src-074 · Corporate registryNPPES registry record for NPI 1063533552 (Prospect Northwest Orange County Medical Group Inc.) Centers for Medicare & Medicaid Services (NPPES)

    Registry record Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  75. src-075 · Court recordCourt record source · src-075 identified by category only · Court record
  76. src-076 · Company statementProspect Medical Holdings, Inc. Form 8-K (August 2007) U.S. Securities and Exchange Commission (EDGAR) · Aug 2007

    Items 2.01 and 9.01 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  77. src-077 · OtherOther source · src-077 identified by category only · Other
  78. src-078 · Corporate registryNPPES registry record for NPI 1346079209 (CharterCARE Our Lady of Fatima Hospital) Centers for Medicare & Medicaid Services (NPPES)

    Registry record Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  79. src-079 · Court recordCourt record source · src-079 identified by category only · Court record
  80. src-080 · Court recordCourt record source · src-080 identified by category only · Court record
  81. src-081 · Court recordConnecticut Office of the Attorney General proof of claim no. 2592 with draft complaint State of Connecticut, Office of the Attorney General · 9 Jul 2025

    Proof of claim and attached draft complaint Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  82. src-082 · Regulatory recordRhode Island Department of Health release on its compliance order to the owners of Roger Williams and Fatima hospitals State of Rhode Island · 9 Nov 2023

    Press release Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  83. src-083 · Court recordOpinion of the Commonwealth Court of Pennsylvania in CKHS, Inc. v. Prospect Medical Holdings, Inc. (No. 1118 C.D. 2022) Unified Judicial System of Pennsylvania · 3 May 2023

    Opinion Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  84. src-084 · Court recordCourt record source · src-084 identified by category only · Court record
  85. src-085 · Court recordCourt record source · src-085 identified by category only · Court record
  86. src-086 · OtherOther source · src-086 identified by category only · Other
  87. src-087 · Court recordStipulation between the California Attorney General and American Healthcare Systems Foundation in the Beverly Community Hospital Association bankruptcy (C.D. Cal. No. 2:23-bk-12359, Doc. 543) Office of the California Attorney General · 5 Jul 2023

    Doc. 543 Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  88. src-088 · Regulatory recordRhode Island Attorney General decision on the Centurion Foundation Hospital Conversions Act applications, with the November 14, 2024 amendment Office of the Rhode Island Attorney General · 20 Jun 2024

    Decision and amendment letter Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  89. src-089 · MediaMedia source · src-089 identified by category only · Media
  90. src-090 · Court recordCourt record source · src-090 identified by category only · Court record
  91. src-091 · Court recordCourt record source · src-091 identified by category only · Court record
  92. src-092 · Court recordCourt record source · src-092 identified by category only · Court record
  93. src-093 · Court recordCourt record source · src-093 identified by category only · Court record
  94. src-094 · MediaMedia source · src-094 identified by category only · Media
  95. src-095 · Company statementCompany statement source · src-095 identified by category only · Company statement
  96. src-096 · MediaMedia source · src-096 identified by category only · Media
  97. src-097 · Court recordCourt record source · src-097 identified by category only · Court record
  98. src-098 · Court recordCourt record source · src-098 identified by category only · Court record
  99. src-099 · OtherOther source · src-099 identified by category only · Other
  100. src-100 · OtherOther source · src-100 identified by category only · Other
  101. src-101 · Court recordCourt record source · src-101 identified by category only · Court record
  102. src-102 · Court recordCourt record source · src-102 identified by category only · Court record
  103. src-103 · OtherCayman Islands Gazette notice of appointment of joint official liquidators of Connecticut Healthcare Insurance Company Cayman Islands Government (Gazette) · Jun 2026

    Gazette notice Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  104. src-104 · Regulatory recordForm 4 statement of changes in beneficial ownership filed by Samuel S. Lee (May 2010) U.S. Securities and Exchange Commission (EDGAR) · May 2010

    Table I Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

  105. src-105 · Company statementTestimony of Kimberly A. Lumia before the Connecticut General Assembly Finance, Revenue and Bonding Committee on H.B. 877 Connecticut General Assembly · 15 Mar 2019

    Written testimony Retained copy of the document in the frozen case database, read in the passages cited by the claims. Accessed 15 October 2026.

cite this dossier

DossierTwist, “Prospect Medical Holdings: owners, hospitals and bankruptcy”, dt.021, 16 October 2026, https://dossiertwist.com/dossiers/prospect-medical-holdings/

Free to read, cite and republish with credit under CC BY 4.0: credit “DossierTwist” and link to the dossier.

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We listen to all sides: responses are shown next to the claims they answer. To send a correction or a reply, write to dossiertwist@proton.me.