<SEC-DOCUMENT>0001971857-24-000365.txt : 20240607
<SEC-HEADER>0001971857-24-000365.hdr.sgml : 20240607
<ACCEPTANCE-DATETIME>20240607133518
ACCESSION NUMBER:		0001971857-24-000365
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240607
DATE AS OF CHANGE:		20240607

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IRONWOOD PHARMACEUTICALS INC
		CENTRAL INDEX KEY:			0001446847
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				043404176
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-34620
		FILM NUMBER:		241028597

	BUSINESS ADDRESS:	
		STREET 1:		100 SUMMER STREET, SUITE 2300
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
		BUSINESS PHONE:		617-621-7722

	MAIL ADDRESS:	
		STREET 1:		100 SUMMER STREET, SUITE 2300
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Moukheibir Catherine
		CENTRAL INDEX KEY:			0001772130
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		C/O IRONWOOD PHARMACEUTICALS, INC.
		STREET 2:		100 SUMMER STREET, SUITE 2300
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Moukheibir Catherine Michener
		DATE OF NAME CHANGE:	20190328
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001772130</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001446847</issuerCik>
      <issuerName>IRONWOOD PHARMACEUTICALS INC</issuerName>
      <secFileNumber>001-34620</secFileNumber>
      <issuerAddress>
        <com:street1>100 SUMMER STREET, SUITE 2300</com:street1>
        <com:city>BOSTON</com:city>
        <com:stateOrCountry>MA</com:stateOrCountry>
        <com:zipCode>02110</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>617-621-7722</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Moukheibir Catherine</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Merrill  Lynch</name>
        <address>
          <com:street1>100 Federal St</com:street1>
          <com:street2>Floor 16</com:street2>
          <com:city>Boston</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02110</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>35574</noOfUnitsSold>
      <aggregateMarketValue>234767.00</aggregateMarketValue>
      <noOfUnitsOutstanding>158957123</noOfUnitsOutstanding>
      <approxSaleDate>06/07/2024</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>06/02/2021</acquiredDate>
      <natureOfAcquisitionTransaction>In Lieu of Services</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Ironwood Pharmaceuticals</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>22766</amountOfSecuritiesAcquired>
      <paymentDate>06/02/2021</paymentDate>
      <natureOfPayment>NA</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>03/15/2021</acquiredDate>
      <natureOfAcquisitionTransaction>In  Lieu of Services</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Ironwood Pharmaceuticals</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1573</amountOfSecuritiesAcquired>
      <paymentDate>03/15/2021</paymentDate>
      <natureOfPayment>NA</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>06/01/2022</acquiredDate>
      <natureOfAcquisitionTransaction>In Lieu of Services</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Ironwood Pharmaceuticals</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>11235</amountOfSecuritiesAcquired>
      <paymentDate>06/01/2022</paymentDate>
      <natureOfPayment>NA</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Catherine Moukhebir</name>
        <address>
          <com:street1>1150 K ST NW</com:street1>
          <com:street2>APT 908</com:street2>
          <com:city>Washington</com:city>
          <com:stateOrCountry>DC</com:stateOrCountry>
          <com:zipCode>20005</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Ironwood Pharmaceuticals</securitiesClassTitle>
      <saleDate>06/06/2024</saleDate>
      <amountOfSecuritiesSold>44426</amountOfSecuritiesSold>
      <grossProceeds>282490.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>06/07/2024</noticeDate>
      <signature>Kathleen McElaney</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
