<SEC-DOCUMENT>0001453072-18-000061-index.html : 20180214
<SEC-HEADER>0001453072-18-000061.hdr.sgml : 20180214
<ACCEPTANCE-DATETIME>20180214150528
ACCESSION NUMBER:		0001453072-18-000061
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180214
DATE AS OF CHANGE:		20180214

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Synthetic Biologics, Inc.
		CENTRAL INDEX KEY:			0000894158
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				133808303
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-50777
		FILM NUMBER:		18611428

	BUSINESS ADDRESS:	
		STREET 1:		617 DETROIT STREET, SUITE 100
		CITY:			ANN ARBOR
		STATE:			MI
		ZIP:			48104
		BUSINESS PHONE:		(734) 332-7800

	MAIL ADDRESS:	
		STREET 1:		9605 MEDICAL CENTER DRIVE
		STREET 2:		SUITE 270
		CITY:			ROCKVILLE
		STATE:			MD
		ZIP:			20850

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ADEONA PHARMACEUTICALS, INC.
		DATE OF NAME CHANGE:	20081027

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PIPEX PHARMACEUTICALS, INC.
		DATE OF NAME CHANGE:	20061214

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SHEFFIELD PHARMACEUTICALS INC
		DATE OF NAME CHANGE:	19970730

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Alyeska Investment Group, L.P.
		CENTRAL INDEX KEY:			0001453072
		IRS NUMBER:				261919051
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		77 WEST WACKER DRIVE
		STREET 2:		7TH FLOOR
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601
		BUSINESS PHONE:		312-899-7902

	MAIL ADDRESS:	
		STREET 1:		77 WEST WACKER DRIVE
		STREET 2:		7TH FLOOR
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>alsk12311713ga-1SYN.txt
<TEXT>
Document 1 - file: alsk12311713ga-1SYN.txt

</DOCUMENT>
</SEC-DOCUMENT>