QUESTCOR
PHARMACEUTICALS INC.
|
(Name
of Issuer)
|
Common
Stock
|
(Title
of Class of Securities)
|
232808105
|
(CUSIP
Number)
|
Joseph
J. Giunta, Esq.
|
Skadden,
Arps, Slate, Meagher & Flom LLP
|
300
South Grand Avenue
|
Los
Angeles, CA 90071
|
(213)
687-5000
|
(Name,
Address and Telephone Number of Person Authorized to Receive Notices
and
Communications)
|
December
20, 2006
|
(Date
of Event Which Requires Filing of this Statement)
|
CUSIP No.232808105 |
13D
|
Page
2 of 22 Pages
|
1
|
NAMES
OF REPORTING PERSONS
|
|||
Claudio
Cavazza
|
||||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
£
|
||
(b)
£
|
||||
3
|
SEC
USE ONLY
|
|||
4
|
SOURCE
OF FUNDS
|
|||
5
|
CHECK
IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
|
|||
PURSUANT
TO ITEM 2(d) OR 2(e)
|
£
|
|||
6
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
|
|||
Italy
|
||||
7
|
SOLE
VOTING POWER
|
|||
NUMBER
OF
|
1,756,781
|
|||
SHARES
|
||||
BENEFICIALLY
|
8
|
SHARED
VOTING POWER
|
||
OWNED
BY
|
4,701,445
|
|||
EACH
|
||||
REPORTING
|
9
|
SOLE
DISPOSITIVE POWER
|
||
PERSON
WITH
|
1,756,781
|
|||
10
|
SHARED
DISPOSITIVE POWER
|
|||
4,701,445
|
||||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|||
6,458,226
|
||||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
|
|||
CERTAIN
SHARES
|
£
|
|||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|||
9.32%
|
||||
14
|
TYPE
OF REPORTING PERSON
|
|||
IN
|
CUSIP No.232808105 |
13D
|
Page 3
of 22 Pages
|
1
|
NAMES
OF REPORTING PERSONS
|
|||
Paolo
Cavazza
|
||||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
£
|
||
(b)
£
|
||||
3
|
SEC
USE ONLY
|
|||
4
|
SOURCE
OF FUNDS
|
|||
5
|
CHECK
IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
|
|||
PURSUANT
TO ITEM 2(d) OR 2(e)
|
£
|
|||
6
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
|
|||
Italy
|
||||
7
|
SOLE
VOTING POWER
|
|||
NUMBER
OF
|
0
|
|||
SHARES
|
||||
BENEFICIALLY
|
8
|
SHARED
VOTING POWER
|
||
OWNED
BY
|
7,797,327
|
|||
EACH
|
||||
REPORTING
|
9
|
SOLE
DISPOSITIVE POWER
|
||
PERSON
WITH
|
0
|
|||
10
|
SHARED
DISPOSITIVE POWER
|
|||
7,797,327
|
||||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|||
7,797,327
|
||||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
|
|||
CERTAIN
SHARES
|
£
|
|||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|||
11.25%
|
||||
14
|
TYPE
OF REPORTING PERSON
|
|||
IN
|
CUSIP No.232808105 |
13D
|
Page 4
of 22 Pages
|
1
|
NAMES
OF REPORTING PERSONS
|
|||
Sigma-Tau
Finanziaria SpA
|
||||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
£
|
||
(b)
£
|
||||
3
|
SEC
USE ONLY
|
|||
4
|
SOURCE
OF FUNDS
|
|||
5
|
CHECK
IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
|
|||
PURSUANT
TO ITEM 2(d) OR 2(e)
|
£
|
|||
6
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
|
|||
Italy
|
||||
7
|
SOLE
VOTING POWER
|
|||
NUMBER
OF
|
0
|
|||
SHARES
|
||||
BENEFICIALLY
|
8
|
SHARED
VOTING POWER
|
||
OWNED
BY
|
0
|
|||
EACH
|
||||
REPORTING
|
9
|
SOLE
DISPOSITIVE POWER
|
||
PERSON
WITH
|
0
|
|||
10
|
SHARED
DISPOSITIVE POWER
|
|||
0
|
||||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|||
0
|
||||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
|
|||
CERTAIN
SHARES
|
£
|
|||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|||
0%
|
||||
14
|
TYPE
OF REPORTING PERSON
|
|||
CO
|
CUSIP No.232808105 |
13D
|
Page 5
of 22 Pages
|
1
|
NAMES
OF REPORTING PERSONS
|
|||
Sigma-Tau
International S.A.
|
||||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
£
|
||
(b)
£
|
||||
3
|
SEC
USE ONLY
|
|||
4
|
SOURCE
OF FUNDS
|
|||
5
|
CHECK
IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
|
|||
PURSUANT
TO ITEM 2(d) OR 2(e)
|
£
|
|||
6
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
|
|||
Luxembourg
|
||||
7
|
SOLE
VOTING POWER
|
|||
NUMBER
OF
|
0
|
|||
SHARES
|
||||
BENEFICIALLY
|
8
|
SHARED
VOTING POWER
|
||
OWNED
BY
|
0
|
|||
EACH
|
||||
REPORTING
|
9
|
SOLE
DISPOSITIVE POWER
|
||
PERSON
WITH
|
0
|
|||
10
|
SHARED
DISPOSITIVE POWER
|
|||
0
|
||||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|||
0
|
||||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
|
|||
CERTAIN
SHARES
|
£
|
|||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|||
0%
|
||||
14
|
TYPE
OF REPORTING PERSON
|
|||
CO
|
CUSIP No.232808105 |
13D
|
Page 6
of 22 Pages
|
1
|
NAMES
OF REPORTING PERSONS
|
|||
Defiante
Farmaceutica L.D.A.
|
||||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
£
|
||
(b)
£
|
||||
3
|
SEC
USE ONLY
|
|||
4
|
SOURCE
OF FUNDS
|
|||
5
|
CHECK
IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
|
|||
PURSUANT
TO ITEM 2(d) OR 2(e)
|
£
|
|||
6
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
|
|||
Portugal
|
||||
7
|
SOLE
VOTING POWER
|
|||
NUMBER
OF
|
0
|
|||
SHARES
|
||||
BENEFICIALLY
|
8
|
SHARED
VOTING POWER
|
||
OWNED
BY
|
0
|
|||
EACH
|
||||
REPORTING
|
9
|
SOLE
DISPOSITIVE POWER
|
||
PERSON
WITH
|
0
|
|||
10
|
SHARED
DISPOSITIVE POWER
|
|||
0
|
||||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|||
0
|
||||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
|
|||
CERTAIN
SHARES
|
£
|
|||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|||
0%
|
||||
14
|
TYPE
OF REPORTING PERSON
|
|||
CO
|
CUSIP No.232808105 |
13D
|
Page 7
of 22 Pages
|
1
|
NAMES
OF REPORTING PERSONS
|
|||
Aptafin
S.p.A.
|
||||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
£
|
||
(b)
£
|
||||
3
|
SEC
USE ONLY
|
|||
4
|
SOURCE
OF FUNDS
|
|||
5
|
CHECK
IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
|
|||
PURSUANT
TO ITEM 2(d) OR 2(e)
|
£
|
|||
6
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
|
|||
Italy
|
||||
7
|
SOLE
VOTING POWER
|
|||
NUMBER
OF
|
0
|
|||
SHARES
|
||||
BENEFICIALLY
|
8
|
SHARED
VOTING POWER
|
||
OWNED
BY
|
7,797,327
|
|||
EACH
|
||||
REPORTING
|
9
|
SOLE
DISPOSITIVE POWER
|
||
PERSON
WITH
|
0
|
|||
10
|
SHARED
DISPOSITIVE POWER
|
|||
7,797,327
|
||||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|||
7,797,327
|
||||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
|
|||
CERTAIN
SHARES
|
£
|
|||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|||
11.25%
|
||||
14
|
TYPE
OF REPORTING PERSON
|
|||
CO
|
CUSIP No.232808105 |
13D
|
Page 8
of 22 Pages
|
1
|
NAMES
OF REPORTING PERSONS
|
|||
Chaumiere
– Consultadoria & Servicos SDC Unipessoal LDA
|
||||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
£
|
||
(b)
£
|
||||
3
|
SEC
USE ONLY
|
|||
4
|
SOURCE
OF FUNDS
|
|||
|
||||
5
|
CHECK
IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
|
|||
PURSUANT
TO ITEM 2(d) OR 2(e)
|
£
|
|||
6
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
|
|||
Portugal
|
||||
7
|
SOLE
VOTING POWER
|
|||
NUMBER
OF
|
0
|
|||
SHARES
|
||||
BENEFICIALLY
|
8
|
SHARED
VOTING POWER
|
||
OWNED
BY
|
7,248,227
|
|||
EACH
|
||||
REPORTING
|
9
|
SOLE
DISPOSITIVE POWER
|
||
PERSON
WITH
|
0
|
|||
10
|
SHARED
DISPOSITIVE POWER
|
|||
7,248,227
|
||||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|||
7,248,227
|
||||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
|
|||
CERTAIN
SHARES
|
£
|
|||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|||
10.46%
|
||||
14
|
TYPE
OF REPORTING PERSON
|
|||
CO
|
CUSIP No.232808105 |
13D
|
Page 9
of 22 Pages
|
1
|
NAMES
OF REPORTING PERSONS
|
|||
Inverlochy
Consultadoria & Servicos L.D.A.
|
||||
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a)
£
|
||
(b)
£
|
||||
3
|
SEC
USE ONLY
|
|||
4
|
SOURCE
OF FUNDS
|
|||
5
|
CHECK
IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
|
|||
PURSUANT
TO ITEM 2(d) OR 2(e)
|
£
|
|||
6
|
CITIZENSHIP
OR PLACE OF ORGANIZATION
|
|||
Portugal
|
||||
7
|
SOLE
VOTING POWER
|
|||
NUMBER
OF
|
0
|
|||
SHARES
|
||||
BENEFICIALLY
|
8
|
SHARED
VOTING POWER
|
||
OWNED
BY
|
4,701,445
|
|||
EACH
|
||||
REPORTING
|
9
|
SOLE
DISPOSITIVE POWER
|
||
PERSON
WITH
|
0
|
|||
10
|
SHARED
DISPOSITIVE POWER
|
|||
4,701,445
|
||||
11
|
AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|||
4,701,445
|
||||
12
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
|
|||
CERTAIN
SHARES
|
£
|
|||
13
|
PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|||
6.78%
|
||||
14
|
TYPE
OF REPORTING PERSON
|
|||
CO
|
CUSIP No.232808105 |
13D
|
Page 10
of 22 Pages
|
CUSIP No.232808105 |
13D
|
Page 11
of 22 Pages
|
CUSIP No.232808105 |
13D
|
Page
12 of 22 Pages
|
Item
7.
|
Material
to be Filed as Exhibits.
|
CUSIP No.232808105 |
13D
|
Page 13
of 22 Pages
|
CUSIP No.232808105 |
13D
|
Page 14
of 22 Pages
|
CLAUDIO
CAVAZZA
|
|||
By:
|
/s/
Antonio Nicolai
|
||
Antonio
Nicolai, Attorney-in-fact for
|
|||
Claudio
Cavazza
|
|||
PAOLO
CAVAZZA
|
|||
By:
|
/s/
Antonio Nicolai
|
||
Antonio
Nicolai, Attorney-in-fact for
|
|||
Paolo
Cavazza
|
|||
SIGMA-TAU
FINANZIARIA SPA
|
|||
By:
|
/s/
Antonio Nicolai
|
||
Antonio
Nicolai, Attorney-in-fact for
|
|||
Sigma-Tau
Finanziari SpA
|
|||
SIGMA-TAU
INTERNATIONAL S.A.
|
|||
By:
|
/s/
Antonio Nicolai
|
||
Antonio
Nicolai, Attorney-in-fact for
|
|||
Sigma-Tau
International S.A.
|
CUSIP No.232808105 |
13D
|
Page 15
of 22 Pages
|
DEFIANTE
FARMACEUTICA L.D.A.
|
|||
By:
|
/s/
Antonio Nicolai
|
||
Antonio
Nicolai, Attorney-in-fact for
|
|||
Defiante
Farmaceutica L.D.A.
|
|||
APTAFIN
S.P.A.
|
|||
By:
|
/s/
Antonio Nicolai
|
||
Antonio
Nicolai, Attorney-in-fact for
|
|||
Aptafin
S.p.A.
|
|||
CHAUMIERE
- CONSULTADORIA & SERVICOS SDC UNIPESSOAL LDA
|
|||
By:
|
/s/
Antonio Nicolai
|
||
Antonio
Nicolai, Attorney-in-fact for Chaumiere - Consultadoria & Servicos SDC
Unipessoal LDA
|
|||
CUSIP No.232808105 |
13D
|
Page 16
of 22 Pages
|
INVERLOCHY
CONSULTADORIA & SERVICOS L.D.A.
|
|||
By:
|
/s/
Antonio Nicolai
|
||
Antonio
Nicolai, Attorney-in-fact for Inverlochy Consultadoria & Servicos
L.D.A.
|
|||
CUSIP No.232808105 |
13D
|
Page 17
of 22 Pages
|
NAME
|
ADDRESS
|
TITLE
|
CITIZENSHIP
|
Claudio
Cavazza
|
via
Pontina Km. 30,400,
00040
Pomezia (Rome) Italy
|
President
|
Italian
|
Ugo
Di Francesco
|
via
Sudafrica,20,
00144
Rome Italy-
|
Vice
President and Chief
Executive Officer |
Italian
|
Antonio
Nicolai
|
via
Sudafrica,20,
00144
Rome Italy
|
Managing
Director
|
Italian
|
Mauro
Bove
|
via
Sudafrica,20,
00144
Rome Italy
|
Managing
Director
|
Italian
|
Stefano
Marino
|
via
Pontina Km. 30,400
00040
Pomezia (Rome) Italy
|
Managing
Director
|
Italian
|
Trevor
M. Jones CBA
|
Woodhyrst
House
18
Friths Drive
REIGATE
Surrey
Great
Britain
|
Director
|
British
|
Emilio
Platè
|
via
Pontina Km. 30,400
00040
Pomezia (Rome) Italy
|
Director
|
Italian
|
Mario
Artali
|
via
Sudafrica,20,
00144
Rome Italy
|
Director
|
Italian
|
Enrico
Cavazza
|
via
Pontina Km. 30,400
00040
Pomezia (Rome) Italy
|
Director
|
Italian
|
Marco
Cerrina Feroni
|
Piazza
Paolo Ferrari 10
20121
Milano, Italy
|
Director
|
Italian
|
CUSIP No.232808105 |
13D
|
Page 18
of 22 Pages
|
NAME
|
ADDRESS
|
TITLE
|
CITIZENSHIP
|
Ugo
Di Francesco
|
via
Sudafrica,20,
00144
Rome Italy-
|
President
|
Italian
|
Jonathan
Lepage
|
Bd.
Du Prince Henri 19-21
L-1724
Luxembourg
|
Director
|
Belgian
|
Luca
Checchinato
|
Bd.
Du Prince Henri 19-21
L-1724
Luxembourg
|
Director
|
Italian
|
Antonio
Nicolai
|
via
Sudafrica,20,
00144
Rome Italy
|
Director
|
Italian
|
Mauro
Bove
|
via
Sudafrica,20,
00144Rome
Italy
|
Director
|
Italian
|
Gustave
Stoffel
|
18
Avenue De La Porte Neuve
L-2227
Luxembourg
|
Director
|
Luxembourg
|
Dominique
Audia
|
Bd.
Du Prince Henri 19-21
L-1724
Luxembourg
|
Director
|
French
|
CUSIP No.232808105 |
13D
|
Page 19
of 22 Pages
|
NAME
|
ADDRESS
|
TITLE
|
CITIZENSHIP
|
Antonio
Nicolai
|
via
Sudafrica,20,
00144
Rome Italy
|
Director
|
Italian
|
Raffaele
Sanguigni
|
Via
Pontina Km. 30.400 – 00040 Pomezia
(Rome) Italy |
Director
|
Italian
|
Paulo
Alexandre da Mota Viegas
|
Rua
dos Tanoeiros, 12º - 2º e 3º - Funchal - Madeira -
Portugal 9000 |
Director
|
Portuguese
|
Pedro
Moreira da Cruz Quintas
|
Rua
dos Ferreiros, 260 - Funchal - Madeira -
ortugal 9000-082 |
Director
|
Portuguese
|
Carla
Emanuel Arruda Jardim Fernandes
|
Rua
dos Ferreiros, 260 - Funchal - Madeira -
Portugal 9000-082 |
Director
|
Portuguese
|
CUSIP No.232808105 |
13D
|
Page
20 of 22 Pages
|
NAME
|
ADDRESS
|
TITLE
|
CITIZENSHIP
|
Cristina
Cavazza
|
Viale
Shakespeare, 47
00144
Rome Italy
|
President
|
Italian
|
Maurizio
Terenzi
|
via
Sudafrica,20,
00144
Rome Italy-
|
Managing
Director
|
Italian
|
Antonio
Nicolai
|
via
Sudafrica,20,
00144
Rome Italy-
|
Director
|
Italian
|
Emanuela
Cavazza
|
Viale
Shakespeare 47
00144
Rome Italy-
|
Director
|
Italian
|
CUSIP No.232808105 |
13D
|
Page
21 of 22 Pages
|
NAME
|
ADDRESS
|
TITLE
|
CITIZENSHIP
|
Roberto
Carlos de
Castro
Abreu
|
Avenida
da República, 32, 4.º
Esquerdo, 1050-193 Lisboa, Portugal |
Director
|
Portuguese
|
João
Josè de Freitas
Rodrigues
|
Avenida
da República, 32, 4.º
Esquerdo, 1050-193 Lisboa, Portugal |
Director
|
Portuguese
|
CUSIP No.232808105 13D Page 22 of 22 PagesSchedule AEXECUTIVE OFFICERS AND DIRECTORSChaumiere - Consultadoria & Servicos SDC Unipessoal LDA
NAME ADDRESS TITLE CITIZENSHIP Roberto Carlos deCastro Abreu Avenida da República, 32, 4.º Esquerdo,
1050-193 Lisboa,
Portugal Director Portuguese João Josè de FreitasRodrigues Avenida da República, 32, 4.º
Esquerdo, 1050-193 Lisboa,
Portugal Director Portuguese