UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

SCHEDULE 13G

 

Under the Securities Exchange Act of 1934*

 

(Amendment No. 9)

 

Quidel Corporation

(Name of Issuer)

 

Common Stock, $0.001 par value

(Title of Class of Securities)

 

74838J101

(CUSIP Number)

 

December 31, 2011

(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 on 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).

 

 
 

 

CUSIP No. 74838J101 13G Page   2   of   14   Pages

 

1

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 

Larry N. Feinberg

 

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)     ¨

 

(b)     ¨

 

3 SEC USE ONLY
4

CITIZENSHIP OR PLACE OF ORGANIZATION

 

United States

 

 

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
5

SOLE VOTING POWER

 

25,000

 

6

SHARED VOTING POWER

 

3,247,243

 

7

SOLE DISPOSITIVE POWER

 

25,000

 

8

SHARED DISPOSITIVE POWER

 

3,247,243

 

 

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

3,272,243

 

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

N/A

 

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

9.8%

 

12

TYPE OF REPORTING PERSON*

 

IN

 

 

 
 

 

CUSIP No. 74838J101 13G Page   3   of   14   Pages

 

1

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 

Oracle Partners, L.P.

 

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(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

 

6

SHARED VOTING POWER

 

2,170,712

 

7

SOLE DISPOSITIVE POWER

 

0

 

8

SHARED DISPOSITIVE POWER

 

2,170,712

 

 

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

2,170,712

 

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

N/A

 

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

6.5%

 

12

TYPE OF REPORTING PERSON*

 

PN

 

 

 
 

 

CUSIP No. 74838J101 13G Page   4   of   14   Pages

 

1

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 

Oracle Associates, LLC

 

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(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

 

6

SHARED VOTING POWER

 

2,578,712

 

7

SOLE DISPOSITIVE POWER

 

0

 

8

SHARED DISPOSITIVE POWER

 

2,578,712

 

 

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

2,578,712

 

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

N/A

 

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

7.8%

 

12

TYPE OF REPORTING PERSON*

 

OO

 

 

 
 

 

CUSIP No. 74838J101 13G Page   5   of   14   Pages

 

1

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 

Oracle Investment Management, Inc.

 

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(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

 

6

SHARED VOTING POWER

 

658,131

 

7

SOLE DISPOSITIVE POWER

 

0

 

8

SHARED DISPOSITIVE POWER

 

658,131

 

 

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

658,131

 

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

N/A

 

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

2.0%

 

12

TYPE OF REPORTING PERSON*

 

CO

 

 

 
 

 

CUSIP No. 74838J101 13G Page   6   of   14   Pages

 

1

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 

Oracle Institutional 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

 

Delaware

 

 

NUMBER
OF SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
5

SOLE VOTING POWER

 

0

 

6

SHARED VOTING POWER

 

408,000

 

7

SOLE DISPOSITIVE POWER

 

0

 

8

SHARED DISPOSITIVE POWER

 

408,000

 

 

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

408,000

 

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

N/A

 

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

1.2%

 

12

TYPE OF REPORTING PERSON*

 

PN

 

 

 
 

 

CUSIP No. 74838J101 13G Page   7   of   14   Pages

 

1

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 

Oracle Offshore Limited

 

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(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

 

6

SHARED VOTING POWER

 

42,235

 

7

SOLE DISPOSITIVE POWER

 

0

 

8

SHARED DISPOSITIVE POWER

 

42,235

 

 

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

42,235

 

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

N/A

 

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

0.1%

 

12

TYPE OF REPORTING PERSON*

 

PN

 

 

 
 

 

CUSIP No. 74838J101 13G Page   8   of   14   Pages

 

1

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 

Oracle Ten Fund Master, LP

 

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)     ¨

 

(b)     ¨

 

3 SEC USE ONLY
4

CITIZENSHIP OR PLACE OF ORGANIZATION

 

Cayman Islands

 

 

NUMBER
OF SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
5

SOLE VOTING POWER

 

0

 

6

SHARED VOTING POWER

 

570,896

 

7

SOLE DISPOSITIVE POWER

 

0

 

8

SHARED DISPOSITIVE POWER

 

570,896

 

 

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

570,896

 

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

N/A

 

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

1.7%

 

12

TYPE OF REPORTING PERSON*

 

OO

 

 

 
 

 

CUSIP No. 74838J101 13G Page   9   of   14   Pages

 

1

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 

Oracle Investment Management, Inc. Employees’ Retirement Plan

 
2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)     ¨

 

(b)     ¨

 

3 SEC USE ONLY
4

CITIZENSHIP OR PLACE OF ORGANIZATION

 

Connecticut

 

 

NUMBER
OF SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
5

SOLE VOTING POWER

 

0

 

6

SHARED VOTING POWER

 

45,000

 

7

SOLE DISPOSITIVE POWER

 

0

 

8

SHARED DISPOSITIVE POWER

 

45,000

 

 

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

45,000

 

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

N/A

 

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

0.1%

 

12

TYPE OF REPORTING PERSON*

 

EP

 

 

 
 

 

CUSIP No. 74838J101 13G Page   10   of   14   Pages

 

1

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

 

The Feinberg Family Foundation

 
2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a) ¨

 

(b) ¨

 

3 SEC USE ONLY
4

CITIZENSHIP OR PLACE OF ORGANIZATION

 

Connecticut

 

 

NUMBER
OF SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
5

SOLE VOTING POWER

 

0

 

6

SHARED VOTING POWER

 

10,400

 

7

SOLE DISPOSITIVE POWER

 

0

 

8

SHARED DISPOSITIVE POWER

 

10,400

 

 

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

10,400

 

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

N/A

 

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 

0.0%

 

12

TYPE OF REPORTING PERSON*

 

OO

 

 

 
 

  

This Amendment No. 9 to Schedule 13G (this "Amendment No. 9") is being filed with respect to the Common Stock, par value $.001 (“Common Stock”) of Quidel Corporation, a Delaware corporation (the “Company”), to amend the Schedule 13G filed on April 23, 2001, as previously amended by Amendment No. 1, filed on February 14, 2002, by Amendment No. 2, filed on February 12, 2003, by Amendment No. 3, filed on February 9, 2005, by Amendment No. 4, filed on February 7, 2006, by Amendment No. 5, filed on February 15, 2008, by Amendment No. 6 filed on May 20, 2009, by Amendment No. 7, filed on February 2, 2010, and by Amendment No. 8, filed on February 8, 2011 (as so amended, the “Schedule 13G”), in accordance with the annual amendment requirements. Capitalized terms used but not defined herein have the meaning ascribed thereto in the Schedule 13G.

 

Item 2(a): Name of Person Filing:

 

Item 2(a) of the Schedule 13G is hereby amended and restated as follows:

 

This statement is filed by:

 

(i)Mr. Larry N. Feinberg ("Mr. Feinberg"), who (A) serves as the senior managing member of Oracle Associates (as defined herein), (B) is the sole shareholder and president of the Manager, which serves as the investment manager and has investment discretion over the securities held by certain investment funds and/or managed accounts (together with the Domestic Funds (as defined herein), the “Funds”) and the Retirement Plan, and (C) is the trustee of the Foundation (as defined herein) and has the sole power to direct the voting and disposition of shares in the Foundation. Mr. Feinberg directly owns individually certain shares of Common Stock and may be deemed to indirectly beneficially own shares of Common Stock, by virtue of the foregoing relationships, directly owned by the Funds, the Retirement Plan and the Foundation;
(ii)Oracle Partners, L.P., a Delaware limited partnership ("Oracle Partners"), with respect to shares of Common Stock directly owned by it;
(iii)Oracle Associates, LLC, a Delaware limited liability company ("Oracle Associates"), which serves as the general partner of certain investment funds and/or managed accounts (the “Domestic Funds”), with respect to shares of Common Stock directly owned by the Domestic Funds;
(iv)Oracle Investment Management, Inc., a Delaware corporation (the “Manager”) which serves as investment manager to Offshore Limited, Ten Fund and the Retirement Plan.
(v)Oracle Institutional Partners, LP, a Delaware limited partnership (“Institutional Partners”);
(vi)Oracle Offshore Limited, a Cayman Islands exempted company (“Offshore Limited”);
(vii)Oracle Ten Fund Master, LP, a Cayman Islands exempted company (“Ten Fund”);
 
 
(viii)Oracle Investment Management, Inc. Employees' Retirement Plan, an employee benefit plan organized in Connecticut (the “Retirement Plan”); and
(ix)The Feinberg Family Foundation, a foundation organized in Connecticut (the “Foundation”).

The foregoing persons are hereinafter sometimes collectively referred to as the “Reporting Persons.” Any disclosures herein with respect to persons other than the Reporting Persons are made on information and belief after making inquiry to the appropriate party.

 

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

 

Item 2(b) of the Schedule 13G is hereby amended and restated as follows:

 

The address of the principal business office of the Reporting Persons is 200 Greenwich Avenue, 3rd Floor, Greenwich, Connecticut 06830.

 

Item 2(c):   Citizenship:

 

Item 2(c) of the Schedule 13G is hereby amended and restated as follows:

 

Mr. Feinberg is a citizen of the United States of America. Oracle Partners, Oracle Associates, Institutional Partners and the Manager are organized under the laws of the state of Delaware. Offshore Limited and Ten Fund are organized under the laws of the Cayman Islands. The Retirement Plan and the Foundation are organized under the laws of the state of Connecticut.

 

Item 4:   Ownership:

 

Item 4 of the Schedule 13G is hereby amended and restated as follows:

 

The percentages used herein and in the rest of this Amendment No. 9 are calculated based upon a total of 33,249,297 shares of Common Stock issued and outstanding as of October 24, 2011, as reported in the Company's Quarterly Report on Form 10-Q for the period ended September 30, 2011.

 

The beneficial ownership of the Reporting Persons is set forth below. This filing and any future amendments hereto shall not be considered an admission by any of the Reporting Persons that a “group” exists or that any Reporting Person is a beneficial owner of shares beneficially owned by any other Reporting Person named herein.

 

A. Larry Feinberg

(a) Amount beneficially owned: 3,272,243

(b) Percent of class: 9.8%

(c) Number of shares as to which such person has:

(i) Sole power to vote or direct the vote: 25,000

(ii) Shared power to vote or direct the vote: 3,247,243

(iii) Sole power to dispose or direct the disposition: 25,000

(iv) Shared power to dispose or direct the disposition: 3,247,243

 

 
 

 

B. Oracle Partners, LP

(a) Amount beneficially owned: 2,170,712

(b) Percent of class: 6.5%

(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: 2,170,712

(iii) Sole power to dispose or direct the disposition: 0

(iv) Shared power to dispose or direct the disposition: 2,170,712

 

C. Oracle Associates, LLC

(a) Amount beneficially owned: 2,578,712

(b) Percent of class: 7.8%

(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: 2,578,712

(iii) Sole power to dispose or direct the disposition: 0

(iv) Shared power to dispose or direct the disposition: 2,578,712

  

D. Oracle Investment Management, Inc.

(a) Amount beneficially owned: 658,131

(b) Percent of class: 2.0%

(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: 658,131

(iii) Sole power to dispose or direct the disposition: 0

(iv) Shared power to dispose or direct the disposition: 658,131

 

E. Oracle Institutional Partners, LP

(a) Amount beneficially owned: 408,000

(b) Percent of class: 1.2%

(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: 658,131

(iii) Sole power to dispose or direct the disposition: 0

(iv) Shared power to dispose or direct the disposition: 658,131

 

F. Oracle Offshore Limited

(a) Amount beneficially owned: 42,235

(b) Percent of class: 0.1%

(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: 42,235

(iii) Sole power to dispose or direct the disposition: 0

(iv) Shared power to dispose or direct the disposition: 42,235

 

 
 

  

G. Oracle Ten Fund Master, LP

(a) Amount beneficially owned: 570,896

(b) Percent of class: 1.7%

(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: 570,896

(iii) Sole power to dispose or direct the disposition: 0

(iv) Shared power to dispose or direct the disposition: 570,896

 

H. Oracle Investment Management, Inc. Employees’ Retirement Plan

(a) Amount beneficially owned: 45,000

(b) Percent of class: 0.1%

(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: 45,000

(iii) Sole power to dispose or direct the disposition: 0

(iv) Shared power to dispose or direct the disposition: 45,000

 

I. The Feinberg Family Foundation

(a) Amount beneficially owned: 10,400

(b) Percent of class: 0.0%

(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: 10,400

(iii) Sole power to dispose or direct the disposition: 0

(iv) Shared power to dispose or direct the disposition: 10,400

 

Item 10: Certification:

 

Each of the Reporting Persons hereby makes the following certification:

 

By signing below I certify that, to the best of my 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.

 

[THE REMAINDER OF THIS PAGE LEFT INTENTIONALLY BLANK]

 

 
 

 

 

SIGNATURE

 

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

 

DATED: February 6, 2012 

 

  /s/ Larry Feinberg
  Larry Feinberg, Individually
     
  ORACLE PARTNERS, LP
  By: ORACLE ASSOCIATES, LLC, its general partner
   
  By: /s/ Larry Feinberg
  Larry Feinberg, Managing Member
   
  ORACLE ASSOCIATES, LLC
   
  By: /s/ Larry Feinberg
  Larry Feinberg, Managing Member
   
  ORACLE INVESTMENT MANAGEMENT, INC
   
  By: /s/ Larry Feinberg
  Larry Feinberg, President

 

 
 

 

  ORACLE INSTITUTIONAL PARTNERS, LP
  By: ORACLE ASSOCIATES, LLC, its general partner
   
  By: /s/ Larry Feinberg
  Larry Feinberg, Managing Member
   
  ORACLE OFFSHORE LIMITED
   
  By: /s/ Larry Feinberg
  Larry Feinberg, Director
   
  ORACLE TEN FUND MASTER, LP
  By: ORACLE ASSOCIATES, LLC, its general partner
   
  By: /s/ Larry Feinberg
  Larry Feinberg, Managing Member
   
  ORACLE INVESTMENT MANAGEMENT, INC. EMPLOYEES’ RETIREMENT PLAN
   
  By: /s/ Aileen Wiate
  Aileen Wiate, Trustee
   
  THE FEINBERG FAMILY FOUNDATION
   
  By: /s/ Larry Feinberg
         Larry Feinberg, Trustee

  

[SIGNATURE PAGE TO

AMENDMENT NO. 9 TO

SCHEDULE 13G WITH RESPECT TO QUIDEL CORPORATION]

 

 
 

 

Exhibit Index 

 

99.1Joint Filing Agreement, dated February 6, 2012, by and among, Larry Feinberg, Oracle Partners, LP, Oracle Associates, LLC, Oracle Investment Management, Inc., Oracle Institutional Partners, LP, Oracle Offshore Limited, Oracle Ten Fund Master, LP, Oracle Investment Management, Inc. Employees’ Retirement Plan and The Feinberg Family Foundation