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OMB
APPROVAL
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UNITED
STATES
SECURITIES AND EXCHANGE COMMISSION
Washington,
D.C. 20549
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OMB
Number:
3235-0145
Expires:
February
28, 2009
Estimated
average burden
hours
per response......................10.4
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Wabash
National Corporation
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Common
Stock, $.01 Par Value
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929566107
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December
31, 2006
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CUSIP
No. 929566107
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13G
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Page
2 of 10 Pages
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1
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NAMES
OF REPORTING PERSONS
I.R.S.
IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
Ziff
Asset Management, L.P.
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2
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CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE
INSTRUCTIONS)
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(a)
¨
(b)
¨
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3
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SEC
USE ONLY
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4
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CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
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NUMBER
OF
SHARES
BENEFICIALLY
OWNED
BY
EACH
REPORTING
PERSON
WITH
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5
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SOLE
VOTING POWER
0
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6
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SHARED
VOTING POWER
0
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7
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SOLE
DISPOSITIVE POWER
0
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8
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SHARED
DISPOSITIVE POWER
0
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9
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AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
0
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10
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CHECK
IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(SEE
INSTRUCTIONS)
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o
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11
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PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
0.0%
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12
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TYPE
OF REPORTING PERSON (SEE INSTRUCTIONS)
PN
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CUSIP
No. 929566107
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13G
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Page
3 of 10 Pages
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1
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NAMES
OF REPORTING PERSONS
I.R.S.
IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
PBK
Holdings, Inc.
|
|
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE
INSTRUCTIONS)
|
(a)
¨
(b)
¨
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3
|
SEC
USE ONLY
|
|
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
|
NUMBER
OF
SHARES
BENEFICIALLY
OWNED
BY
EACH
REPORTING
PERSON
WITH
|
5
|
SOLE
VOTING POWER
0
|
6
|
SHARED
VOTING POWER
0
|
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7
|
SOLE
DISPOSITIVE POWER
0
|
|
8
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SHARED
DISPOSITIVE POWER
0
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9
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AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
0
|
|
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(SEE
INSTRUCTIONS)
|
o
|
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
0.0%
|
|
12
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TYPE
OF REPORTING PERSON (SEE INSTRUCTIONS)
CO
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CUSIP
No. 929566107
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13G
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Page 4
of 10 Pages
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1
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NAMES
OF REPORTING PERSONS
I.R.S.
IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
Philip
B. Korsant
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2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE
INSTRUCTIONS)
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(a)
¨
(b)
¨
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3
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SEC
USE ONLY
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4
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CITIZENSHIP
OR PLACE OF ORGANIZATION
United
States of America
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NUMBER
OF
SHARES
BENEFICIALLY
OWNED
BY
EACH
REPORTING
PERSON
WITH
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5
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SOLE
VOTING POWER
0
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6
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SHARED
VOTING POWER
0
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7
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SOLE
DISPOSITIVE POWER
0
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8
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SHARED
DISPOSITIVE POWER
0
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9
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AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
0
|
|
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(SEE
INSTRUCTIONS)
|
o
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11
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PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
0.0%
|
|
12
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TYPE
OF REPORTING PERSON (SEE INSTRUCTIONS)
IN
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CUSIP
No. 929566107
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13G
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Page 5
of 10 Pages
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1
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NAMES
OF REPORTING PERSONS
I.R.S.
IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
ZBI
Equities, L.L.C.
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2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE
INSTRUCTIONS)
|
(a)
¨
(b)
¨
|
3
|
SEC
USE ONLY
|
|
4
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
Delaware
|
NUMBER
OF
SHARES
BENEFICIALLY
OWNED
BY
EACH
REPORTING
PERSON
WITH
|
5
|
SOLE
VOTING POWER
0
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6
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SHARED
VOTING POWER
0
|
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7
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SOLE
DISPOSITIVE POWER
0
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8
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SHARED
DISPOSITIVE POWER
0
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9
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AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
0
|
|
10
|
CHECK
IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(SEE
INSTRUCTIONS)
|
o
|
11
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
0.0%
|
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12
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TYPE
OF REPORTING PERSON (SEE INSTRUCTIONS)
IA
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(i)
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Ziff
Asset Management, L.P. (“ZAM”);
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(ii)
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PBK
Holdings, Inc. (“PBK”);
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(iii)
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Philip
B. Korsant; and
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(iv)
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ZBI
Equities, L.L.C. (“ZBI”).
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(a)
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Amount beneficially
owned:
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See
Item 9 of the attached cover pages.
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(b)
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Percent
of class:
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See
Item 11 of the attached cover pages.
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(c)
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Number
of shares as to which such person has:
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(i)
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Sole
power to vote or to direct the vote:
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See
Item 5 of the attached cover pages.
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(ii)
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Shared
power to vote or to direct the vote:
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See
Item 6 of the attached cover pages.
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(iii)
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Sole
power to dispose or to direct the disposition:
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See
Item 7 of the attached cover pages.
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(iv)
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Shared
power to dispose or to direct the disposition:
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See
Item 8 of the attached cover pages.
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ZIFF
ASSET MANAGEMENT, L.P.
By: PBK
Holdings, Inc., its general partner
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By:
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/s/
DAVID GRAY
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Name:
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David
Gray
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Title:
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Vice
President
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PBK
HOLDINGS, INC.
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By:
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/s/
DAVID GRAY
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Name:
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David
Gray
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Title:
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Vice
President
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/s/
PHILIP
B. KORSANT
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Philip
B. Korsant
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ZBI
EQUITIES, L.L.C.
By: PBK
Holdings, Inc., its sole member
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By:
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/s/
DAVID GRAY
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Name:
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David
Gray
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Title:
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Vice
President
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ZIFF
ASSET MANAGEMENT, L.P.
By: PBK
Holdings, Inc., its general partner
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By:
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/s/
DAVID GRAY
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Name:
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David
Gray
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Title:
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Vice
President
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PBK
HOLDINGS, INC.
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By:
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/s/
DAVID GRAY
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Name:
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David
Gray
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Title:
|
Vice
President
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||
/s/
PHILIP
B. KORSANT
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|||
Philip
B. Korsant
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ZBI
EQUITIES, L.L.C.
By: PBK
Holdings, Inc., its sole member
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|||
By:
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/s/
DAVID GRAY
|
||
Name:
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David
Gray
|
||
Title:
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Vice
President
|