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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 1)*
Name of Issuer: Quidel Corporation
Title of Class of Securities: Common Stock
CUSIP Number: 74838J101
(Name, Address and Telephone Number of Person
Authorized To Receive Notices and Communications)
Larry N. Feinberg
c/o Oracle Partners, L.P.
712 Fifth Avenue, 45th Floor
New York, New York 10019
(Date of Event which Requires Filing of this Statement)
November 22, 1999
If the filing person has previously filed a statement on Schedule
13G to report the acquisition which is the subject of this
Schedule 13D, and is filing this schedule because of
Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box
[ ].
Note: Schedules filed in paper format shall include a signed
original and five copies of the schedule, including all exhibits.
See Rule 13d-7(b) for other parties to whom copies are to be
sent.
*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).
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CUSIP No.: 74838J101
1. Name of Reporting Person
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. Source of Funds
WC
5. Check if Disclosure of Legal Proceedings is Required Pursuant
to Items 2(d) or 2(e)
6. Citizenship or Place of Organization
United States
Number of Shares Beneficially Owned by Each Reporting Person
With:
7. Sole Voting Power:
1,403,600
8. Shared Voting Power:
1,388,400
9. Sole Dispositive Power:
1,403,600
10. Shared Dispositive Power:
1,388,400
11. Aggregate Amount Beneficially Owned by Each Reporting Person
2,792,000
12. Check Box if the Aggregate Amount in Row (11) Excludes
Certain Shares
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13. Percent of Class Represented by Amount in Row (11)
11.7%
14. Type of Reporting Person
IN
*SEE INSTRUCTIONS BEFORE FILLING OUT!
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CUSIP No.: 74838J101
1. Name of Reporting Person
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. SOURCE OF FUNDS
WC
5. Check if Disclosure of Legal Proceedings is Required Pursuant
to Items 2(d) of 2(e)
6. Citizenship or Place of Organization
U.S.
Number Of Shares Beneficially Owned By Each Reporting Person With
7. Sole Voting Power
8. Shared Voting Power
1,388,400
9. Sole Dispositive Power
10. Shared Dispositive Power
1,388,400
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11. Aggregate Amount Beneficially Owned by Each Reporting Person
1,388,400
12. Check Box if the Aggregate Amount in Row (11) Excludes
Certain Shares*
13. Percent of Class Represented by Amount in Row (11)
5.8%
14. Type of Reporting Person*
PN
*SEE INSTRUCTIONS BEFORE FILLING OUT!
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This Amendment No. 1 to the Schedule 13D is being filed to report
the change in beneficial ownership of Larry N. Feinberg and the
addition of Oracle Partners, L.P. as a reporting person with
respect to the common stock (the "Common Stock") of Quidel
Corporation ("QDEL").
Item 1. Security and Issuer
No change.
Item 2. Identity and Background
This statement is being filed on behalf of Mr. Larry N.
Feinberg and Oracle Partners, L.P., a Delaware limited
partnership ("Oracle Partners") (Oracle Partners and Mr. Feinberg
will be collectively referred to as the "Reporting Persons").
Oracle Partners has been added as a Reporting Person due to an
increase in the percentage of shares of QDEL's Common Stock of
which Oracle Partners is the beneficial owner. Mr. Feinberg is
the managing general partner of Oracle Partners and Oracle
Institutional Partners, L.P., both of which are investment
limited partnerships (the "Partnerships"). Mr. Feinberg is also
the sole principal of Oracle Investment Management, Inc., the
investment manager of several offshore investment funds (the
"Offshore Funds") and several managed accounts (the "Managed
Accounts"). The principal offices of the Funds and the
Investment Manager are at 712 Fifth Avenue, 45th Floor, New York,
New York 10019.
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The Reporting Persons have not during the last five
years, been convicted in a criminal proceeding (excluding traffic
violations or similar misdemeanors). The Reporting Persons have
not during the last five years, been a party to a civil
proceeding of a judicial or administrative body of competent
jurisdiction which resulted in a judgment, decree or final order
enjoining future violations of, or prohibiting or mandating
activities subject to, federal or state securities laws or
finding any violations with respect to such laws.
Mr. Feinberg is a citizen of the United States of
America. Oracle Partners is a limited partnership formed under
the laws of the State of Delaware.
Item 3. Source and Amount of Funds or Other Consideration
As of the date hereof, Mr. Feinberg is deemed to
beneficially own 2,792,000 shares of QDEL's Common Stock (the
"Shares"), of which Oracle Partners beneficially owns 1,388,400
Shares. The Shares deemed to be beneficially owned by Mr.
Feinberg are held by the (i) Partnerships; (ii) Offshore Funds;
(iii) Managed Accounts over which Mr. Feinberg has investment
discretion; and (iv) Mr. Feinberg directly. The 2,792,000 Shares
were purchased in open market transactions at an aggregate cost
of $10,952,505. The funds for the purchase of the Shares held in
the Partnerships came from capital contributions to the
Partnerships by their general and limited partners. The funds
for the purchase of the Shares held by the Investment Manager
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came from its shareholders. The funds for the purchase of the
Shares held in the Managed Accounts came from each Managed
Account's own funds. The funds for the purchase of the Shares of
Common Stock held by Mr. Feinberg came from his own funds. No
leverage was used to purchase the Shares.
Item 4. Purpose of Transaction
No change.
Item 5. Interest in Securities of the Issuer
As of the date hereof, Mr. Feinberg is deemed to be the
beneficial owner of 2,792,000 Shares of which Oracle Partners is
the beneficial owner of 1,388,400 Shares. Based on QDEL's most
recent Form 10-Q filed on November 15, 1999, as of November 5,
1999 there were 23,857,285 shares of QDEL's Common Stock
outstanding. Therefore, Mr. Feinberg is deemed to beneficially
own 11.7% of QDEL's outstanding shares of Common Stock, and
Oracle Partners is the beneficial owner of 5.8%. Mr. Feinberg
has the sole power to vote, direct the vote, dispose of or direct
the disposition of 1,403,600 shares of QDEL's Common Stock. Mr.
Feinberg and Oracle Partners have the shared power to vote,
direct the vote, dispose of or direct the disposition of
1,388,400 shares of QDEL's Common Stock.
Item 6. Contracts, Arrangements, Understandings or
Relationships With Respect to Securities of
the Issuer
No change.
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Item 7. Material to be Filed as Exhibits
1. An agreement relating to the filing of a joint
statement as required by Rule 13d-1(k)(1) under the Securities
Exchange Act of 1934 is filed herewith as Exhibit A.
2. A description of the transactions in the Shares
that were effected by the Reporting Persons during the past 60
days is filed herewith as Exhibit B.
Signature
The undersigned, after reasonable inquiry and to the
best of their knowledge and belief, certify that the information
set forth in this statement is true, complete and correct.
December 2, 1999
/s/ Larry N. Feinberg
_________________________
Larry N. Feinberg
Oracle Partners, L.P.
By: /s/ Larry N. Feinberg
Larry N. Feinberg
General Partner
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EXHIBIT A
AGREEMENT
The undersigned agree that this Schedule 13D dated
December 2, 1999 relating to the Common Stock of Quidel
Corporation shall be filed on behalf of the undersigned.
/s/ Larry N. Feinberg
Larry Feinberg
Oracle Partners, L.P.
By: /s/ Larry N. Feinberg
Larry Feinberg
General Partner
00751001.BD1
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EXHIBIT B
Schedule of Transactions
Date Shares Purchased
or (Sold) Price Per Share
9/30/99 10,000 $4.4712
9/30/99 1,700 4.4671
10/28/99 40,000 3.75
11/16/99 25,000 3.875
11/18/99 65,000 4.0625
11/22/99 10,000 5.5937
11/22/99 25,000 5.675
11/22/99 25,000 5.732
11/24/99 10,000 5.3438
11/30/99 24,000 5.6700
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00751001.BD1
