{"transactions":[{"id":2183740,"issuer":{"id":12703,"kind":"organization","name":"Epizyme, Inc.","symbol":"EPZM"},"owners":[{"id":25466,"kind":"person","name":"Legorreta Pablo G.","position":1,"cik":"0001507678","reported_name":"Legorreta Pablo G.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":104117,"kind":"organization","name":"RP Management, LLC","position":2,"cik":"0001507673","reported_name":"RP Management, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124525,"kind":"person","name":"RPI Finance Trust","position":3,"cik":"0001793690","reported_name":"RPI Finance Trust","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124526,"kind":"person","name":"Royalty Pharma Investments 2019 ICAV","position":4,"cik":"0001909645","reported_name":"Royalty Pharma Investments 2019 ICAV","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Restricted Stock Units","published_at":"2022-08-16T22:55:40.000Z","date":"2022-08-12","kind":"disposition_to_issuer","acquired":false,"shares":8994,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Reflects disposition of restricted stock units (\"RSUs\") in accordance with the Merger Agreement, pursuant to which, effective immediately prior to the Effective Time, each unvested RSU held by the Reporting Person automatically vested in full and was canceled and converted into the right to receive (i) an amount of cash equal to the product of (A) the total number of Shares then underlying such RSU multiplied by (B) the Cash Consideration and (ii) one (1) CVR for each Share underlying such RSU, in each case, less applicable withholding."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Reflects disposition of restricted stock units (\"RSUs\") in accordance with the Merger Agreement, pursuant to which, effective immediately prior to the Effective Time, each unvested RSU held by the Reporting Person automatically vested in full and was canceled and converted into the right to receive (i) an amount of cash equal to the product of (A) the total number of Shares then underlying such RSU multiplied by (B) the Cash Consideration and (ii) one (1) CVR for each Share underlying such RSU, in each case, less applicable withholding."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F5","text":"Mr. Legorreta is deemed to hold the derivative security and the shares issuable thereunder for the benefit of RP Management. Mr. Legorreta is the manager of RP Management. Any exercise of the derivative security, when vested, or sale of the shares issuable upon exercise shall be at the direction of RP Management and the proceeds of the sale of the shares issuable upon exercise shall be delivered to RP Management. The proceeds of the sale of the shares issuable under the derivative security will be offset against the management fee payable to RP Management by RPIFT, RPI 2019 ICAV, and certain of their respective indirect owners (such indirect owners, the \"Funds\"), all of which are managed by RP Management."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F6","text":"(Continued from Footnote 5) Mr. Legorreta and such Funds disclaim beneficial ownership of the securities indicated except to the extent of their pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that Mr. Legorreta or any of such Funds is the beneficial owner thereof for purposes of Section 16 of the Exchange Act or for any other purpose. Mr. Legorreta served on the board of directors of the Issuer as a representative of RPIFT and RPI 2019 ICAV. Each of RPIFT, RPI 2019 ICAV and RP Management may be deemed to be a director by deputization of the Issuer for purposes of Section 16(b)-3(d) of the Exchange Act."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":8994},"source":{"system":"sec-edgar","filing":"0000899243-22-028860","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1507678/000089924322028860/doc4.xml","form_type":"4"}},{"id":2183739,"issuer":{"id":12703,"kind":"organization","name":"Epizyme, Inc.","symbol":"EPZM"},"owners":[{"id":25466,"kind":"person","name":"Legorreta Pablo G.","position":1,"cik":"0001507678","reported_name":"Legorreta Pablo G.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":104117,"kind":"organization","name":"RP Management, LLC","position":2,"cik":"0001507673","reported_name":"RP Management, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124525,"kind":"person","name":"RPI Finance Trust","position":3,"cik":"0001793690","reported_name":"RPI Finance Trust","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124526,"kind":"person","name":"Royalty Pharma Investments 2019 ICAV","position":4,"cik":"0001909645","reported_name":"Royalty Pharma Investments 2019 ICAV","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Restricted Stock Units","published_at":"2022-08-16T22:55:40.000Z","date":"2022-08-12","kind":"disposition_to_issuer","acquired":false,"shares":8060,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Reflects disposition of restricted stock units (\"RSUs\") in accordance with the Merger Agreement, pursuant to which, effective immediately prior to the Effective Time, each unvested RSU held by the Reporting Person automatically vested in full and was canceled and converted into the right to receive (i) an amount of cash equal to the product of (A) the total number of Shares then underlying such RSU multiplied by (B) the Cash Consideration and (ii) one (1) CVR for each Share underlying such RSU, in each case, less applicable withholding."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"Reflects disposition of restricted stock units (\"RSUs\") in accordance with the Merger Agreement, pursuant to which, effective immediately prior to the Effective Time, each unvested RSU held by the Reporting Person automatically vested in full and was canceled and converted into the right to receive (i) an amount of cash equal to the product of (A) the total number of Shares then underlying such RSU multiplied by (B) the Cash Consideration and (ii) one (1) CVR for each Share underlying such RSU, in each case, less applicable withholding."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F5","text":"Mr. Legorreta is deemed to hold the derivative security and the shares issuable thereunder for the benefit of RP Management. Mr. Legorreta is the manager of RP Management. Any exercise of the derivative security, when vested, or sale of the shares issuable upon exercise shall be at the direction of RP Management and the proceeds of the sale of the shares issuable upon exercise shall be delivered to RP Management. The proceeds of the sale of the shares issuable under the derivative security will be offset against the management fee payable to RP Management by RPIFT, RPI 2019 ICAV, and certain of their respective indirect owners (such indirect owners, the \"Funds\"), all of which are managed by RP Management."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F6","text":"(Continued from Footnote 5) Mr. Legorreta and such Funds disclaim beneficial ownership of the securities indicated except to the extent of their pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that Mr. Legorreta or any of such Funds is the beneficial owner thereof for purposes of Section 16 of the Exchange Act or for any other purpose. Mr. Legorreta served on the board of directors of the Issuer as a representative of RPIFT and RPI 2019 ICAV. Each of RPIFT, RPI 2019 ICAV and RP Management may be deemed to be a director by deputization of the Issuer for purposes of Section 16(b)-3(d) of the Exchange Act."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":8060},"source":{"system":"sec-edgar","filing":"0000899243-22-028860","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1507678/000089924322028860/doc4.xml","form_type":"4"}},{"id":2183738,"issuer":{"id":12703,"kind":"organization","name":"Epizyme, Inc.","symbol":"EPZM"},"owners":[{"id":25466,"kind":"person","name":"Legorreta Pablo G.","position":1,"cik":"0001507678","reported_name":"Legorreta Pablo G.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":104117,"kind":"organization","name":"RP Management, LLC","position":2,"cik":"0001507673","reported_name":"RP Management, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124525,"kind":"person","name":"RPI Finance Trust","position":3,"cik":"0001793690","reported_name":"RPI Finance Trust","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124526,"kind":"person","name":"Royalty Pharma Investments 2019 ICAV","position":4,"cik":"0001909645","reported_name":"Royalty Pharma Investments 2019 ICAV","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, par value $0.0001","published_at":"2022-08-16T22:55:40.000Z","date":"2022-08-12","kind":"other","acquired":false,"shares":31933334,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents (a) (i) 6,666,667 shares of the Issuer's common stock (\"Shares\") and (ii) 2,500,000 shares of the Issuer's common stock, in each case acquired by RPI Finance Trust (\"RPIFT\") pursuant to that certain Purchase Agreement, dated November 4, 2019, by and between the Issuer and RPIFT and (b) 22,666,667 shares of common stock acquired by Royalty Pharma Investments 2019 ICAV (\"RPI 2019 ICAV\") from the underwriter in an underwritten public offering conducted by the Issuer that closed on January 31, 2022."},{"field":"shares","element":"transactionShares","label":"F2","text":"Reflects disposition of Shares in connection with that certain Agreement and Plan of Merger (the \"Merger Agreement\"), by and among the Issuer, Ipsen Pharma SAS and Hibernia Merger Sub, Inc. (\"Merger Sub\"), dated as of June 27, 2022, including the completion of a tender offer to purchase all outstanding Shares of the Issuer, at a price per Share of (i) $1.45 per Share (the \"Cash Consideration\"), plus (ii) one (1) contractual contingent value right per Share (\"CVR\"), which represents the right to receive one or more contingent payments upon the achievement of certain milestones, if any (collectively, the \"Offer Price\"), and the consummation of the merger (the \"Merger\") between the Issuer and Merger Sub on August 12, 2022. As of the effective time of the Merger (the \"Effective Time\"), each Share held by the Reporting Person was converted into the Offer Price."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Reflects disposition of Shares in connection with that certain Agreement and Plan of Merger (the \"Merger Agreement\"), by and among the Issuer, Ipsen Pharma SAS and Hibernia Merger Sub, Inc. (\"Merger Sub\"), dated as of June 27, 2022, including the completion of a tender offer to purchase all outstanding Shares of the Issuer, at a price per Share of (i) $1.45 per Share (the \"Cash Consideration\"), plus (ii) one (1) contractual contingent value right per Share (\"CVR\"), which represents the right to receive one or more contingent payments upon the achievement of certain milestones, if any (collectively, the \"Offer Price\"), and the consummation of the merger (the \"Merger\") between the Issuer and Merger Sub on August 12, 2022. As of the effective time of the Merger (the \"Effective Time\"), each Share held by the Reporting Person was converted into the Offer Price."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"This Form 4 is being jointly filed by RP Management, LLC (\"RP Management\"), RPIFT, and Pablo G. Legorreta (collectively, the \"Reporting Persons\"). RP Management, as the manager of RPIFT and RPI 2019 ICAV, and Mr. Legorreta, as the manager of RP Management, may be deemed to have beneficial ownership under Section 13 of the Securities Exchange Act of 1934, as amended (the \"Exchange Act\") of the securities beneficially owned by RPIFT and RPI 2019 ICAV. RP Management and Mr. Legorreta disclaim beneficial ownership of the securities indicated except to the extent of their pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that RP Management and/or Mr. Legorreta are the beneficial owners thereof for purposes of Section 16 of the Exchange Act or for any other purpose. Mr. Legorreta served on the board of directors of the Issuer as a representative of RPIFT and RPI 2019 ICAV."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"(Continued from Footnote 3) Each of RPIFT, RPI 2019 ICAV and RP Management, LLC may be deemed to be a director by deputization of the Issuer for purposes of Section 16(b)-3(d) of the Exchange Act."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000899243-22-028860","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1507678/000089924322028860/doc4.xml","form_type":"4"}},{"id":2263244,"issuer":{"id":12703,"kind":"organization","name":"Epizyme, Inc.","symbol":"EPZM"},"owners":[{"id":25466,"kind":"person","name":"Legorreta Pablo G.","position":1,"cik":"0001507678","reported_name":"Legorreta Pablo G.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":104117,"kind":"organization","name":"RP Management, LLC","position":2,"cik":"0001507673","reported_name":"RP Management, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124525,"kind":"person","name":"RPI Finance Trust","position":3,"cik":"0001793690","reported_name":"RPI Finance Trust","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124526,"kind":"person","name":"Royalty Pharma Investments 2019 ICAV","position":4,"cik":"0001909645","reported_name":"Royalty Pharma Investments 2019 ICAV","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Restricted Stock Units","published_at":"2022-05-19T22:01:41.000Z","date":"2022-05-17","kind":"grant","acquired":true,"shares":8994,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","text":"Consists of shares of common stock issuable under 8,994 RSUs granted on May 17, 2022, which RSUs are scheduled to vest with respect to all shares on the first anniversary of the grant date or, if earlier, immediately prior to the first annual meeting of stockholders occurring after the grant date, subject to Mr. Legorreta's continued service as a director. Each RSU represents the right to receive one share of common stock upon vesting. In the event of a change in control of the Issuer, the RSUs will vest in full."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F10","text":"Consists of shares of common stock issuable under 8,994 RSUs granted on May 17, 2022, which RSUs are scheduled to vest with respect to all shares on the first anniversary of the grant date or, if earlier, immediately prior to the first annual meeting of stockholders occurring after the grant date, subject to Mr. Legorreta's continued service as a director. Each RSU represents the right to receive one share of common stock upon vesting. In the event of a change in control of the Issuer, the RSUs will vest in full."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F5","text":"Mr. Legorreta is deemed to hold the derivative security and the shares issuable thereunder for the benefit of RP Management. Mr. Legorreta is the manager of RP Management. Any exercise of the derivative security, when vested, or sale of the shares issuable upon exercise shall be at the direction of RP Management and the proceeds of the sale of the shares issuable upon exercise shall be delivered to RP Management. The proceeds of the sale of the shares issuable under the derivative security will be offset against the management fee payable to RP Management by RPIFT, RPI 2019 ICAV, and certain of their respective indirect owners (such indirect owners, the \"Funds\"), all of which are managed by RP Management."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F6","text":"(Continued from Footnote 5) Mr. Legorreta and such Funds disclaim beneficial ownership of the securities indicated except to the extent of their pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that Mr. Legorreta or any of such Funds is the beneficial owner thereof for purposes of Section 16 of the Exchange Act or for any other purpose. Mr. Legorreta serves on the board of directors of the Issuer as a representative of RPIFT and RPI 2019 ICAV. Each of RPIFT, RPI 2019 ICAV and RP Management may be deemed to be a director by deputization of the Issuer for purposes of Section 16(b)-3(d) of the Exchange Act."}],"balance_after":8994,"derivative":{"exercise_price":0,"exercise_date":"2023-05-17","underlying":"Common Stock","underlying_shares":8994},"source":{"system":"sec-edgar","filing":"0000899243-22-018914","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1507678/000089924322018914/doc4.xml","form_type":"4"}},{"id":2263243,"issuer":{"id":12703,"kind":"organization","name":"Epizyme, Inc.","symbol":"EPZM"},"owners":[{"id":25466,"kind":"person","name":"Legorreta Pablo G.","position":1,"cik":"0001507678","reported_name":"Legorreta Pablo G.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":104117,"kind":"organization","name":"RP Management, LLC","position":2,"cik":"0001507673","reported_name":"RP Management, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124525,"kind":"person","name":"RPI Finance Trust","position":3,"cik":"0001793690","reported_name":"RPI Finance Trust","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124526,"kind":"person","name":"Royalty Pharma Investments 2019 ICAV","position":4,"cik":"0001909645","reported_name":"Royalty Pharma Investments 2019 ICAV","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2022-05-19T22:01:41.000Z","date":"2022-05-17","kind":"grant","acquired":true,"shares":41006,"price":0.56,"value":22963.36,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"This option was granted on May 17, 2022 with respect to 41,006 shares of common stock, and is scheduled to vest with respect to all shares on the first anniversary of the grant date or, if earlier, immediately prior to the first annual meeting of stockholders occurring after the grant date, subject to Mr. Legorreta's continued service as a director. In the event of a change in control of the Issuer, the option will vest in full."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F5","text":"Mr. Legorreta is deemed to hold the derivative security and the shares issuable thereunder for the benefit of RP Management. Mr. Legorreta is the manager of RP Management. Any exercise of the derivative security, when vested, or sale of the shares issuable upon exercise shall be at the direction of RP Management and the proceeds of the sale of the shares issuable upon exercise shall be delivered to RP Management. The proceeds of the sale of the shares issuable under the derivative security will be offset against the management fee payable to RP Management by RPIFT, RPI 2019 ICAV, and certain of their respective indirect owners (such indirect owners, the \"Funds\"), all of which are managed by RP Management."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F6","text":"(Continued from Footnote 5) Mr. Legorreta and such Funds disclaim beneficial ownership of the securities indicated except to the extent of their pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that Mr. Legorreta or any of such Funds is the beneficial owner thereof for purposes of Section 16 of the Exchange Act or for any other purpose. Mr. Legorreta serves on the board of directors of the Issuer as a representative of RPIFT and RPI 2019 ICAV. Each of RPIFT, RPI 2019 ICAV and RP Management may be deemed to be a director by deputization of the Issuer for purposes of Section 16(b)-3(d) of the Exchange Act."}],"balance_after":41006,"derivative":{"exercise_price":0.56,"exercise_date":"2023-05-17","expiration_date":"2032-05-16","underlying":"Common Stock","underlying_shares":41006},"source":{"system":"sec-edgar","filing":"0000899243-22-018914","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1507678/000089924322018914/doc4.xml","form_type":"4"}},{"id":2418887,"issuer":{"id":12703,"kind":"organization","name":"Epizyme, Inc.","symbol":"EPZM"},"owners":[{"id":25466,"kind":"person","name":"Legorreta Pablo G.","position":1,"cik":"0001507678","reported_name":"Legorreta Pablo G.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":104117,"kind":"organization","name":"RP Management, LLC","position":2,"cik":"0001507673","reported_name":"RP Management, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124525,"kind":"person","name":"RPI Finance Trust","position":3,"cik":"0001793690","reported_name":"RPI Finance Trust","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-02-01T21:17:51.000Z","date":"2022-01-31","kind":"purchase","acquired":true,"shares":22666667,"price":1.5,"value":34000000.5,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Represents (a) (i) 6,666,667 shares of the Issuer's common stock and (ii) 2,500,000 shares of the Issuer's common stock, in each case acquired by RPI Finance Trust (\"RPIFT\") pursuant to that certain Purchase Agreement, dated November 4, 2019, by and between the Issuer and RPIFT and (b) 22,666,667 shares of common stock acquired by Royalty Pharma Investments 2019 ICAV (\"RPI 2019 ICAV\") from the underwriter in an underwritten public offering conducted by the Issuer that closed on January 31, 2022."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"This Form 4 is being jointly filed by RP Management, LLC (\"RP Management\"), RPIFT, and Pablo G. Legorreta (collectively, the \"Reporting Persons\"). RP Management, as the manager of RPIFT and RPI 2019 ICAV, and Mr. Legorreta, as the manager of RP Management, may be deemed to have beneficial ownership under Section 13 of the Securities Exchange Act of 1934, as amended (the \"Exchange Act\") of the securities beneficially owned by RPIFT and RPI 2019 ICAV. RP Management and Mr. Legorreta disclaim beneficial ownership of the securities indicated except to the extent of their pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that RP Management and/or Mr. Legorreta are the beneficial owners thereof for purposes of Section 16 of the Exchange Act or for any other purpose. Mr. Legorreta serves on the board of directors of the Issuer as a representative of RPIFT and RPI 2019 ICAV."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"(Continued from Footnote 2) Each of RPIFT, RPI 2019 ICAV and RP Management, LLC may be deemed to be a director by deputization of the Issuer for purposes of Section 16(b)-3(d) of the Exchange Act."}],"balance_after":31833334,"source":{"system":"sec-edgar","filing":"0000899243-22-003857","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1507678/000089924322003857/doc4.xml","form_type":"4"}},{"id":2667770,"issuer":{"id":12703,"kind":"organization","name":"Epizyme, Inc.","symbol":"EPZM"},"owners":[{"id":25466,"kind":"person","name":"Legorreta Pablo G.","position":1,"cik":"0001507678","reported_name":"Legorreta Pablo G.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":104117,"kind":"organization","name":"RP Management, LLC","position":2,"cik":"0001507673","reported_name":"RP Management, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124525,"kind":"person","name":"RPI Finance Trust","position":3,"cik":"0001793690","reported_name":"RPI Finance Trust","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Restricted Stock Units","published_at":"2021-06-15T21:14:01.000Z","date":"2021-06-11","kind":"grant","acquired":true,"shares":8060,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"Consists of shares of common stock issuable under 8,060 restricted stock units (\"RSUs\") granted on June 11, 2021, which RSUs are scheduled to vest with respect to all shares on the first anniversary of the grant date or, if earlier, immediately prior to the first annual meeting of stockholders occurring after the grant date, subject to Mr. Legorreta's continued service as a director. Each RSU represents the right to receive one share of common stock upon vesting.  In the event of a change in control of the Issuer, the RSUs will vest in full."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"Consists of shares of common stock issuable under 8,060 restricted stock units (\"RSUs\") granted on June 11, 2021, which RSUs are scheduled to vest with respect to all shares on the first anniversary of the grant date or, if earlier, immediately prior to the first annual meeting of stockholders occurring after the grant date, subject to Mr. Legorreta's continued service as a director. Each RSU represents the right to receive one share of common stock upon vesting.  In the event of a change in control of the Issuer, the RSUs will vest in full."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F5","text":"Mr. Legorreta is deemed to hold the derivative security and the shares issuable thereunder for the benefit of RP Management. Mr. Legorreta is the manager of RP Management. Any exercise of the derivative security, when vested, or sale of the shares issuable upon exercise shall be at the direction of RP Management and the proceeds of the sale of the shares issuable upon exercise shall be delivered to RP Management. The proceeds of the sale of the shares issuable under the derivative security will be offset against the management fee payable to RP Management by certain indirect owners (the \"Funds\") of RPIFT, all of which are managed by RP Management."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F6","text":"(Continued from Footnote 5) Mr. Legorreta and such Funds disclaim beneficial ownership of the securities indicated except to the extent of their pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that Mr. Legorreta or any of such Funds is the beneficial owner thereof for purposes of Section 16 of the Exchange Act or for any other purpose. Mr. Legorreta serves on the board of directors of the Issuer as a representative of RPIFT. Each of RPIFT and RP Management may be deemed to be a director by deputization of the Issuer for purposes of Section 16(b)-3(d) of the Exchange Act."}],"balance_after":8060,"derivative":{"exercise_price":0,"exercise_date":"2022-06-11","underlying":"Common Stock","underlying_shares":8060},"source":{"system":"sec-edgar","filing":"0000899243-21-023897","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1507678/000089924321023897/doc4.xml","form_type":"4"}},{"id":2667769,"issuer":{"id":12703,"kind":"organization","name":"Epizyme, Inc.","symbol":"EPZM"},"owners":[{"id":25466,"kind":"person","name":"Legorreta Pablo G.","position":1,"cik":"0001507678","reported_name":"Legorreta Pablo G.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":104117,"kind":"organization","name":"RP Management, LLC","position":2,"cik":"0001507673","reported_name":"RP Management, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124525,"kind":"person","name":"RPI Finance Trust","position":3,"cik":"0001793690","reported_name":"RPI Finance Trust","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2021-06-15T21:14:01.000Z","date":"2021-06-11","kind":"grant","acquired":true,"shares":40559,"price":8.53,"value":345968.27,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"This option was granted on June 11, 2021 with respect to 40,559 shares of common stock, and is scheduled to vest with respect to all shares on the first anniversary of the grant date or, if earlier, immediately prior to the first annual meeting of stockholders occurring after the grant date, subject to Mr. Legorreta's continued service as a director.  In the event of a change in control of the Issuer, the option will vest in full."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F5","text":"Mr. Legorreta is deemed to hold the derivative security and the shares issuable thereunder for the benefit of RP Management. Mr. Legorreta is the manager of RP Management. Any exercise of the derivative security, when vested, or sale of the shares issuable upon exercise shall be at the direction of RP Management and the proceeds of the sale of the shares issuable upon exercise shall be delivered to RP Management. The proceeds of the sale of the shares issuable under the derivative security will be offset against the management fee payable to RP Management by certain indirect owners (the \"Funds\") of RPIFT, all of which are managed by RP Management."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F6","text":"(Continued from Footnote 5) Mr. Legorreta and such Funds disclaim beneficial ownership of the securities indicated except to the extent of their pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that Mr. Legorreta or any of such Funds is the beneficial owner thereof for purposes of Section 16 of the Exchange Act or for any other purpose. Mr. Legorreta serves on the board of directors of the Issuer as a representative of RPIFT. Each of RPIFT and RP Management may be deemed to be a director by deputization of the Issuer for purposes of Section 16(b)-3(d) of the Exchange Act."}],"balance_after":40559,"derivative":{"exercise_price":8.53,"exercise_date":"2022-06-11","expiration_date":"2031-06-11","underlying":"Common Stock","underlying_shares":40559},"source":{"system":"sec-edgar","filing":"0000899243-21-023897","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1507678/000089924321023897/doc4.xml","form_type":"4"}},{"id":3126533,"issuer":{"id":12703,"kind":"organization","name":"Epizyme, Inc.","symbol":"EPZM"},"owners":[{"id":25466,"kind":"person","name":"Legorreta Pablo G.","position":1,"cik":"0001507678","reported_name":"Legorreta Pablo G.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":104117,"kind":"organization","name":"RP Management, LLC","position":2,"cik":"0001507673","reported_name":"RP Management, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124525,"kind":"person","name":"RPI Finance Trust","position":3,"cik":"0001793690","reported_name":"RPI Finance Trust","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2020-06-02T20:23:09.000Z","date":"2020-05-29","kind":"grant","acquired":true,"shares":14103,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"This stock option will vest in full on May 29, 2021, subject to Mr. Legorreta's continued service as a director.  In the event of a change in control of the Issuer, the option will become exercisable in full."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F5","text":"Mr. Legorreta is deemed to hold the stock option and the shares issuable thereunder for the benefit of RP Management. Mr. Legorreta is the manager of RP Management. Any exercise of the stock option, when vested, or sale of the shares issuable upon exercise shall be at the direction of RP Management and the proceeds of the sale of the shares issuable upon exercise shall be delivered to RP Management. The proceeds of the sale of the shares issuable under the stock option will be offset against the management fee payable to RP Management by certain indirect owners (the \"Funds\") of RPIFT, all of which are managed by RP Management."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F6","text":"(Continued from Footnote 6) Mr. Legorreta and such Funds disclaim beneficial ownership of the securities indicated except to the extent of their pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that Mr. Legorreta or any of such Funds is the beneficial owner thereof for purposes of Section 16 of the Exchange Act or for any other purpose. Mr. Legorreta serves on the board of directors of the Issuer as a representative of RPIFT. Each of RPIFT and RP Management may be deemed to be a director by deputization of the Issuer for purposes of Section 16(b)-3(d) of the Exchange Act."}],"balance_after":14103,"derivative":{"exercise_price":17.55,"exercise_date":"2021-05-29","expiration_date":"2029-05-29","underlying":"Common Stock","underlying_shares":14103},"source":{"system":"sec-edgar","filing":"0000899243-20-014907","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1507678/000089924320014907/doc4.xml","form_type":"4"}},{"id":3273501,"issuer":{"id":12703,"kind":"organization","name":"Epizyme, Inc.","symbol":"EPZM"},"owners":[{"id":25466,"kind":"person","name":"Legorreta Pablo G.","position":1,"cik":"0001507678","reported_name":"Legorreta Pablo G.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":104117,"kind":"organization","name":"RP Management, LLC","position":2,"cik":"0001507673","reported_name":"RP Management, LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":124525,"kind":"person","name":"RPI Finance Trust","position":3,"cik":"0001793690","reported_name":"RPI Finance Trust","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2020-02-13T23:47:04.000Z","date":"2020-02-11","kind":"grant","acquired":true,"shares":2500000,"price":20,"value":50000000.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents 2,500,000 shares of the Issuer's common stock acquired by RPI Finance Trust (\"RPIFT\") on February 11, 2020 pursuant to that certain Purchase Agreement, dated November 4, 2019, by and between the Issuer and RPIFT (the \"Purchase Agreement\"), whereby the Issuer had the option, subject to certain conditions, to sell $50 million of its common stock to RPIFT until May 6, 2021 at a maximum price of $20.00 per share. The Issuer exercised this option on December 30, 2019 and on February 11, 2020, the Issuer issued and sold to RPIFT 2,500,000 shares of its common stock at a price of $20.00 per share."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"This Form 4 is being jointly filed by RP Management, LLC (\"RP Management\"), RPIFT and Pablo G. Legorreta (collectively, the \"Reporting Persons\"). RP Management, as the manager of RPIFT, and Mr. Legorreta, as the manager of RP Management, may be deemed to have beneficial ownership under Section 13 of the Securities Exchange Act of 1934, as amended (the \"Exchange Act\") of the securities beneficially owned by RPIFT. RP Management and Mr. Legorreta disclaim beneficial ownership of the securities indicated except to the extent of their pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that RP Management and/or Mr. Legorreta are the beneficial owners thereof for purposes of Section 16 of the Exchange Act or for any other purpose. Mr. Legorreta serves on the board of directors of the Issuer as a representative of RPIFT."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"(Continued from Footnote 2) Each of RPIFT and RP Management, LLC may be deemed to be a director by deputization of the Issuer for purposes of Section 16(b)-3(d) of the Exchange Act."}],"balance_after":9166667,"source":{"system":"sec-edgar","filing":"0000899243-20-004530","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1507678/000089924320004530/doc4.xml","form_type":"4"}}]}