UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549




SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. )*
SELECTA BIOSCIENCES, INC.
 (Name of Issuer)
 
Common stock, par value $0.0001 per share
 (Title of Class of Securities)
 
816212104
 (CUSIP Number)
 
January 23, 2019
 (Date of Event which Requires Filing of this Statement)
 

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
[   ] Rule 13d-1(b)
[ X ] Rule 13d-1(c)
[   ] Rule 13d-1(d)
* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Continued on following pages
Page 1 of 8 Pages
Exhibit Index:  Page 7
 

CUSIP No. 816212104
SCHEDULE 13G
Page 2 o f 8 Pages

1
NAMES OF REPORTING PERSONS
 
 
GLG PARTNERS LP
 
 
 
 
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
   
(a)
   
(b)
 
 
3
SEC USE ONLY
 
 
 
 
 
 
 
4
CITIZENSHIP OR PLACE OF ORGANIZATION
 
 
United Kingdom
 
 
 
 
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
5
SOLE VOTING POWER
 
 
0
 
 
 
 
6
SHARED VOTING POWER
 
 
3,672,618
 
 
 
 
7
SOLE DISPOSITIVE POWER
 
 
0
 
 
 
 
8
SHARED DISPOSITIVE POWER
 
 
3,672,618
 
 
 
 
9
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
 
3,672,618
 
 
 
 
10
CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
 
 
 
 
 
 
11
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
 
 
8.65%
 
 
 
 
12
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
 
 
PN
 
 
 
 
 
 

CUSIP No. 816212104
SCHEDULE 13G
Page 3 o f 8 Pages

1
NAMES OF REPORTING PERSONS
 
 
MAN GROUP PLC
 
 
 
 
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
   
(a)
   
(b)
 
 
3
SEC USE ONLY
 
 
 
 
 
 
 
4
CITIZENSHIP OR PLACE OF ORGANIZATION
 
 
United Kingdom
 
 
 
 
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
5
SOLE VOTING POWER
 
 
0
 
 
 
 
6
SHARED VOTING POWER
 
 
3,672,618
 
 
 
 
7
SOLE DISPOSITIVE POWER
 
 
0
 
 
 
 
8
SHARED DISPOSITIVE POWER
 
 
3,672,618
 
 
 
 
9
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
 
3,672,618
 
 
 
 
10
CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
 
 
 
 
 
 
11
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
 
 
8.65%
 
 
 
 
12
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
 
 
OO, HC
 
 
 
 
 
 

 
SCHEDULE 13G
Page 4 o f 8 Pages

Item 1(a).               Name of Issuer:
Selecta Biosciences, Inc. (the “Issuer”)
 
Item 1(b).               Address of Issuer’s Principal Executive Offices:
 
480 Arsenal Way, Watertown, MA 024720
 
Item 2(a).               Name of Person Filing
 
This Statement is filed on behalf of each of the following persons (collectively, the “Reporting Persons”):

(i)
GLG Partners LP (the “Investment Manager”); and
(ii)
Man Group plc (the “Parent Company”).

This Statement relates to Shares (as defined herein) held by certain funds and/or managed accounts to which the Investment Manager serves as investment manager (collectively, the “GLG Funds”).  Parent Company indirectly, through various intermediate entities, controls the Investment Manager.

Item 2(b).               Address of Principal Business Office or, if None, Residence:

The address of the principal business office of each Reporting Person is Riverbank House, 2 Swan Lane, London EC4R 3AD, United Kingdom.

Item 2(c).               Citizenship:

The Investment Manager is a United Kingdom limited partnership. The Parent Company is a United Kingdom public limited company.

Item 2(d).               Title of Class of Securities:
Common stock, par value $0.0001 per share (the “Shares”)
Item 2(e).               CUSIP Number:
816212104
 
Item 3.                    If This Statement is Filed Pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c),
                           Check Whether the Person Filing is a:

This Item 3 is not applicable.

Item 4.                    Ownership:
Item 4(a)                Amount Beneficially Owned:

As of January 31, 2019, each of the Reporting Persons may be deemed to be the beneficial owner of 3,672,618 Shares held by the GLG Funds.  The Parent Company hereby disclaims any beneficial ownership of any such Shares.


 
SCHEDULE 13G
Page 5 o f 8 Pages
 
Item 4(b)                Percent of Class:
 
As of January 31, 2019, each of the Reporting Persons may be deemed the beneficial owner of approximately 8.65% of Shares outstanding.  (This percentage is based on the sum of (i) 22,471,776 Shares outstanding as of December 31, 2018, and (ii) 20,000,000 Shares offered by the Issuer in a follow-on offering on January 23, 2019, which was expected to close on or about January 25, 2019, each as reported in the Issuer’s prospectus on Form 424B5 dated January 23, 2019.)

Item 4(c)                Number of Shares as to which such person has:
(i) Sole power to vote or direct the vote:
0
(ii) Shared power to vote or direct the vote:
3,672,618
(iii) Sole power to dispose or direct the disposition of:
0
(iv) Shared power to dispose or direct the disposition of:
3,672,618
Item 5.                    Ownership of Five Percent or Less of a Class:

This Item 5 is not applicable.

Item 6.                    Ownership of More than Five Percent on Behalf of Another Person:

See disclosure in Items 2 and 4 hereof. The GLG Funds have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Shares covered by this Statement.

Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security
Being Reported on By the Parent Holding Company or Control Person:

See disclosure in Item 2 hereof.

Item 8.                    Identification and Classification of Members of the Group:

This Item 8 is not applicable.

Item 9.                    Notice of Dissolution of Group:

This Item 9 is not applicable.

Item 10.                 Certification:

By signing below each Reporting Person certifies that, to the best of its knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under §240.14a-11.
 

 

Page 6 o f 8 Pages

SIGNATURE
After reasonable inquiry and to the best of its knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

  GLG PARTNERS LP
 
     
 
By:
/s/ Katherine Squire
 
   
Katherine Squire
 
   
Chief Compliance Officer
 
       


 
MAN GROUP PLC
 
     
 
By:
/s/ Michelle Robyn Grew  
   
Michelle Robyn Grew
 
   
Chief Administrative Officer
 
       
January 31, 2019

 

 

Page 7 o f 8 Pages

EXHIBIT INDEX
 

 
Ex.
 
Page No.
 
A
Joint Filing Agreement
8
 
 
 
 

 

Page 8 o f 8 Pages

EXHIBIT A
 
JOINT FILING AGREEMENT
 
The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements.  The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him or it contained herein and therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows or has reason to believe that such information is inaccurate.
 
DATED as of January 31, 2019
 


  GLG PARTNERS LP
 
     
 
By:
/s/ Katherine Squire
 
   
Katherine Squire
 
   
Chief Compliance Officer
 
       


 
MAN GROUP PLC
 
     
 
By:
/s/ Michelle Robyn Grew  
   
Michelle Robyn Grew
 
   
Chief Administrative Officer