    <SEC-DOCUMENT>0001453687-18-000039-index.html : 20180615
    <SEC-HEADER>0001453687-18-000039.hdr.sgml : 20180615
    <ACCEPTANCE-DATETIME>20180615060047
    ACCESSION NUMBER:		0001453687-18-000039
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		21
    CONFORMED PERIOD OF REPORT:	20180614
    ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20180615
    DATE AS OF CHANGE:		20180615

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			SELECTA BIOSCIENCES INC
    		CENTRAL INDEX KEY:			0001453687
    		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
    		IRS NUMBER:				000000000
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-37798
    		FILM NUMBER:		18900655

    	BUSINESS ADDRESS:
    		STREET 1:		480 ARSENAL WAY
    		CITY:			WATERTOWN
    		STATE:			MA
    		ZIP:			02472
    		BUSINESS PHONE:		617-923-1400

    	MAIL ADDRESS:
    		STREET 1:		480 ARSENAL WAY
    		CITY:			WATERTOWN
    		STATE:			MA
    		ZIP:			02472
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>selectabiosciences8k_june2.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: selectabiosciences8k_june2.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>2
    <FILENAME>exhibit101_amendedandresta.htm
    <DESCRIPTION>EXHIBIT 10.1
    <TEXT>
    Document 2 - file: exhibit101_amendedandresta.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>3
    <FILENAME>exhibit991_pressrelease.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 3 - file: exhibit991_pressrelease.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>4
    <FILENAME>exhibit992eular2018poste.htm
    <DESCRIPTION>EXHIBIT 99.2
    <TEXT>
    Document 4 - file: exhibit992eular2018poste.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>exhibit992eular2018poste001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: exhibit992eular2018poste001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.3
    <SEQUENCE>6
    <FILENAME>exhibit993selectaeularpr.htm
    <DESCRIPTION>EXHIBIT 99.3
    <TEXT>
    Document 6 - file: exhibit993selectaeularpr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g162601mmi001a03.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g162601mmi001a03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>exhibit993selectaeularpr001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: exhibit993selectaeularpr001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>exhibit993selectaeularpr002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: exhibit993selectaeularpr002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>exhibit993selectaeularpr003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: exhibit993selectaeularpr003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>exhibit993selectaeularpr004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: exhibit993selectaeularpr004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>exhibit993selectaeularpr005.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: exhibit993selectaeularpr005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>exhibit993selectaeularpr006.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: exhibit993selectaeularpr006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>exhibit993selectaeularpr007.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: exhibit993selectaeularpr007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>exhibit993selectaeularpr008.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: exhibit993selectaeularpr008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>exhibit993selectaeularpr009.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: exhibit993selectaeularpr009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>exhibit993selectaeularpr010.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: exhibit993selectaeularpr010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>exhibit993selectaeularpr011.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: exhibit993selectaeularpr011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>exhibit993selectaeularpr012.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: exhibit993selectaeularpr012.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>exhibit993selectaeularpr013.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: exhibit993selectaeularpr013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>exhibit993selectaeularpr014.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: exhibit993selectaeularpr014.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>