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IN ADDITION TO MANAGING THE ABOVE PORTFOLIO OF JOURNALS, IN 2019 PLOS CONTINUED ITS FOCUS ON TWO BROAD AREAS: (1) OPEN SCIENCE PRACTICES AND INITIATIVES AROUND TRANSPARENCY, RECOGNITION, EXPANDED OPPORTUNITIES FOR PEER REVIEW, FIGHTING PUBLICATION BIAS, AND REPRODUCIBILITY; AND (2) DEVELOPING MORE EQUITABLE BUSINESS MODELS TO ENABLE A DIVERSE AND SUSTAINABLE PUBLISHING ECOSYSTEM. THE FOLLOWING ARE KEY HIGHLIGHTS FROM OUR WORK IN 2019:- IN VARIOUS BLOG POSTS AND SPEAKING ENGAGEMENTS, PLOS OUTLINED ITS VISION FOR BUSINESS MODELS BEYOND THE APC. WHILE MUCH OF THIS WORK WILL NOT BE PUBLICLY VISIBLE UNTIL 2020, 2019 SAW THE START OF PUBLIC DISCUSSION, AND EXTENSIVE BEHIND-THE-SCENES OPERATIONAL WORK, TO ADAPT TO NEW BUSINESS MODELS THAT ARE FOCUSED ON CENTRALLY ADMINISTRATED RELATIONSHIPS WITH INSTITUTIONS, FUNDERS, AND OTHER ORGANIZATIONS, IN ADDITION TO AUTHORS ARRANGING PAYMENTS OF APCS.- PLOS ROLLED OUT THE OPTION FOR "PUBLISHED PEER REVIEW HISTORY" WHEREBY AUTHORS OPT-IN TO MAKE THE REVIEWER REPORTS OPENLY AVAILABLE ALONGSIDE THEIR ARTICLE, IF ACCEPTED FOR PUBLICATION. WE COMBINED MANUAL AND AUTOMATED PROCESSES, INCLUDING THE DEVELOPMENT OF NEW SOFTWARE, TO ENABLE US TO PUBLISH PEER REVIEW HISTORIES AT OUR LEVEL OF SCALE. - PLOS INCREASED THE NUMBER OF OPTIONS FOR REVIEWERS TO GET CREDIT FOR THEIR WORK BY ESTABLISHING CONNECTIONS WITH ORCID FOR REVIEWERS AND PUBLONS. REVIEWERS CAN OPT-IN VIA ORCID TO RECEIVE AUTOMATIC CREDIT FOR THEIR REVIEWS AND ADD MORE NUANCE TO THEIR SCHOLARLY PROFILES. 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        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
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        <TotalCompensationFilingOrgAmt>129360</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>RICHARD HEWITT AND KERRY KROFFE RECEIVED SEVERANCE PAYMENT OF $129,360 AND $53,522 RESPECTIVELY IN 2019. THE AMOUNT WAS INCLUDED ON THE 2019 FORM W-2 AND ALSO REPORTED ON 2019 FORM 990, SCH J, PART II, COLUMN B(III).</ExplanationTxt>
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    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 1</FormAndLineReferenceDesc>
        <ExplanationTxt>PLOS (PUBLIC LIBRARY OF SCIENCE) IS A NONPROFIT, OPEN ACCESS PUBLISHER EMPOWERING RESEARCHERS TO ACCELERATE PROGRESS IN SCIENCE AND MEDICINE BY LEADING A TRANSFORMATION IN RESEARCH COMMUNICATION. WE HAVE BEEN BREAKING BOUNDARIES SINCE OUR FOUNDING IN 2001. PLOS JOURNALS PROPELLED THE MOVEMENT FOR OA ALTERNATIVES TO SUBSCRIPTION JOURNALS. WE ESTABLISHED THE FIRST MULTI-DISCIPLINARY PUBLICATION INCLUSIVE OF ALL EXCELLENT RESEARCH REGARDLESS OF NOVELTY OR IMPACT AND DEMONSTRATED THE IMPORTANCE OF OPEN DATA AVAILABILITY. AS OPEN SCIENCE ADVANCES, WE CONTINUE TO EXPERIMENT TO PROVIDE MORE OPPORTUNITIES, CHOICE, AND CONTEXT FOR READERS AND RESEARCHERS. PLOS PUBLISHES A SUITE OF SEVEN INFLUENTIAL OPEN ACCESS JOURNALS ACROSS ALL AREAS OF SCIENCE AND MEDICINE. RIGOROUSLY REPORTED, PEER REVIEWED, AND IMMEDIATELY AVAILABLE WITHOUT RESTRICTIONS, THE JOURNALS PROMOTE THE WIDEST READERSHIP AND IMPACT POSSIBLE. WE STRIVE TO IMPLEMENT POLICIES AND INNOVATIONS THAT PROMOTE REPRODUCIBILITY, CREDIT, AND ACCOUNTABILITY TO FOSTER A CULTURE OF OPEN SCIENCE. OUR WORK IN THESE AREAS IS SUPPORTED BY THE EFFORTS OF A DIVERSE, INTERNATIONAL COMMUNITY OF SCIENTIFIC RESEARCHERS FROM HUNDREDS OF RESEARCH AREAS WHO PUBLISH AND REVIEW RIGOROUS RESEARCH OF ALL TYPES. SINCE 2003, PLOS HAS PUBLISHED MORE THAN 260,000 RESEARCH ARTICLES. IN 2019 ALONE PLOS PUBLISHED MORE THAN 18,000 RESEARCH ARTICLES DOCUMENTING THE OBSERVATIONS AND DISCOVERIES OF A DIVERSE SCIENTIFIC COMMUNITY. A GLOBAL POOL OF MORE THAN 11,000 ACADEMIC EDITORS AND 65,000 REVIEWERS CONTRIBUTED TO BRINGING THIS WORK TO THE PUBLIC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 IS PREPARED BY AN OUTSIDE TAX PROFESSIONAL WITH ASSISTANCE FROM THE ORGANIZATION. THE FORM IS THEN REVIEWED BY THE CFO AND MEMBERS FROM THE AUDIT COMMITTEE. AFTER REVIEW AND MODIFICATIONS WHERE NECESSARY, THE FINAL VERSION OF THE TAX RETURN IS PROVIDED TO THE BOARD OF DIRECTORS. THE CFO SIGNS AND FILES ALL REQUIRED TAX FILINGS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE GENERAL COUNSEL AND SECRETARY OVERSEES THE ANNUAL CONFLICT OF INTEREST DISCLOSURE PROCESS. A COMMITTEE OF THE BOARD OF DIRECTORS REVIEWS ALL POTENTIAL CONFLICTS OF INTEREST AT LEAST ANNUALLY. THE CEO AND ALL BOARD MEMBERS ARE REQUIRED TO DISCLOSE (IN WRITING) POTENTIAL CONFLICTS AND ANY RELATED PARTY AFFILIATIONS. LOANS BETWEEN THE ORGANIZATION AND MEMBERS OF MANAGEMENT AND THE BOARD ARE STRICTLY PROHIBITED. THE ORGANIZATION SEEKS FULL TRANSPARENCY ON ALL RELATIONSHIPS. ANY POTENTIAL CONFLICTS (IN FACT OR APPEARANCE) ARE DISCUSSED OPENLY AND RESOLVED IN ACCORDANCE WITH THE ORGANIZATION'S POLICIES AND PROCEDURES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPENSATION COMMITTEE OF THE BOARD OF DIRECTORS REVIEWS THE COMPENSATION OF ALL HIGH-LEVEL PERSONNEL ANNUALLY IN ACCORDANCE WITH IRS RULES AND REGULATIONS. EFFORTS ARE MADE TO SECURE COMPENSATION DATA FROM INDUSTRY SOURCES IN ORDER TO DETERMINE COMPETITIVENESS AND APPROPRIATENESS OF SALARIES AND BENEFITS. EVERY EFFORT IS MADE TO ENSURE THAT THE PROCESS IS THOROUGH AND TRANSPARENT IN ACCORDANCE WITH APPROPRIATE GOVERNANCE AND REGULATORY COMPLIANCE. THIS IS PERFORMED ANNUALLY AND THE PROCESS IS MANAGED BY THE HR DIRECTOR. REVIEW ENCOMPASSES CEO, CFO, EXECUTIVES AND KEY EMPLOYEES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>PLOS MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST. THESE DOCUMENTS ARE ALSO POSTED ON OUR WEBSITE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>LOSS ON EXCHANGE RATE -62,853.</ExplanationTxt>
      </SupplementalInformationDetail>
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