UNITED
STATES
SECURITIES
AND EXCHANGE COMMISSION
Washington,
D.C. 20549
|
Under
the Securities Exchange Act of 1934
|
Cleveland
BioLabs, Inc.
|
(Name
of Issuer)
|
|
Common
Stock
|
(Title
of Class of Securities)
|
|
185860-10-3
|
(CUSIP
Number)
|
|
December
31, 2007
|
(Date
of Event Which Requires Filing of this
Statement)
|
¨
|
Rule
13d-1(b)
|
¨
|
Rule
13d-1(c)
|
ý
|
Rule
13d-1(d)
|
CUSIP
NO.
185860-10-3
|
1
|
NAMES
OF REPORTING PERSONS
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES
ONLY)
ChemBridge
Corporation
|
|
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
|
|
(a) o
|
|
|
(b) o
|
|
|
3
|
SEC
USE ONLY
|
|
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Illinois
|
NUMBER OF SHARES
BENEFICIALLY OWNED BY EACH REPORTING PERSON
WITH:
|
|
5
6
7
8
|
SOLE
VOTING POWER
622,224
SHARED
VOTING POWER
SOLE DISPOSITIVE POWER 622,224
SHARED
DISPOSITIVE POWER
|
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
622,224
|
|
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
|
|
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
4.7%
|
|
12
|
TYPE
OF REPORTING PERSON
CO
|
CUSIP
NO.
185860-10-3
|
1
|
NAMES
OF REPORTING PERSONS
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES
ONLY)
Eugene
Vaisberg
|
|
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
|
|
(a) o
|
|
|
(b) o
|
|
|
3
|
SEC
USE ONLY
|
|
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
United
States of America
|
NUMBER OF SHARES
BENEFICIALLY OWNED BY EACH REPORTING PERSON
WITH:
|
|
5
6
7
8
|
SOLE
VOTING POWER
622,224
SHARED
VOTING POWER
SOLE DISPOSITIVE POWER 622,224
SHARED
DISPOSITIVE POWER
|
9
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
622,224
|
|
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
|
|
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
4.7%
|
|
12
|
TYPE
OF REPORTING PERSON
IN
|
Item1 (a). |
Name
of Issuer:
|
Item 1(b). |
Address
of Issuer's Principal Executive Offices:
|
Item 2(a). |
Name
of Person Filing:
|
Item 2(b). |
Address
of Principal Business Office or, if None, Residence:
|
Item 2(c). |
Citizenship:
|
Item 2(d). |
Title
of Class of Securities:
|
Item 2(e). |
CUSIP
Number:
|
Item 3. |
If
this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b)
or (c),
check whether the person filing is
a:
|
Item 4. |
Ownership
|
Item 5. |
Ownership
of Five Percent or Less of a Class
|
Item 6. |
Ownership
of More than Five Percent on Behalf of Another Person
|
Item 7. |
Identification
and Classification of the Subsidiary Which Acquired the Security
Being
|
Reported
on by the Parent Holding Company
|
Item 8. |
Identification
and Classification of Members of the Group
|
Item 9. |
Notice
of Dissolution of Group
|
Item 10. |
Certification
|
Date:
February 11, 2008
|
CHEMBRIDGE
CORPORATION
|
|
|
|
/s/
Sergey Altshteyn
|
|
Name:
Sergey Altshteyn
Title:
President
|
Date:
February 11, 2008
|
CHEMBRIDGE
CORPORATION
|
|
/s/
Sergey Altshteyn
|
|
Name:
Sergey Altshteyn
Title:
President
|
|
|
Date:
February 11, 2008
|
EUGENE
VAISBERG
|
|
/s/
Eugene Vaisberg
|
|
Name:
Eugene Vaisberg
|