<PAGE>
As filed with the Securities and Exchange Commission on December 19, 1997
Registration No. 33-10742
================================================================================
U.S. SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
--------------------
POST-EFFECTIVE AMENDMENT NO. 1
TO
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
SYNBIOTICS CORPORATION
(Name of registrant as specified in its charter)
CALIFORNIA 95-3737816
(State or other jurisdiction of (I.R.S. Employer
incorporation or organization) Identification No.)
11011 VIA FRONTERA
SAN DIEGO, CALIFORNIA 92127
(Address of principal executive offices) (Zip Code)
SYNBIOTICS CORPORATION 1983 STOCK OPTION PLAN
SYNBIOTICS CORPORATION 1984 STOCK OPTION PLAN
SYNBIOTICS CORPORATION 1986 STOCK OPTION PLAN
(Full title of the plans)
MICHAEL K. GREEN
Vice President of Finance and Chief Financial Officer
SYNBIOTICS CORPORATION
11011 Via Frontera, San Diego, California 92127
(Name and address of agent for service)
(619) 451-3771
(Telephone number, including area code, of agent for service)
Copies to:
HAYDEN J. TRUBITT, ESQ.
BROBECK, PHLEGER & HARRISON
550 West C Street, Suite 1300
San Diego, California 92101
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This Registration Statement shall become effective immediately upon
filing with the Securities and Exchange Commission, and sales of the
registered securities will begin as soon as reasonably practicable
after such effective date.
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<PAGE>
SYNBIOTICS CORPORATION
Deregistration
--------------
This Registration Statement, as amended to the date of its effectiveness
(December 30, 1986), registered 305,642 shares of the Common Stock of Synbiotics
Corporation (the "Company"). These shares were offered pursuant to Company's
1983 Stock Option Plan, 1984 Stock Option Plan and 1986 Stock Option Plan
(collectively the "Option Plans"). Each of the Option Plans has expired and
121,544 shares have been issued under the Option Plans. All stock options still
outstanding under the Option Plans have been rolled into the Company's 1995
Stock Option/Stock Issuance Plan; the Common Stock underlying such stock options
has been separately registered (with a separate registration fee paid) under the
Form S-8 Registration Statement filed with respect to the 1995 Stock
Option/Stock Issuance Plan, Registration No. 33-61103.
A new Form S-8 Registration Statement was filed today with respect to an
increase in the number of shares covered by the 1995 Stock Option/Stock Issuance
Plan. For purposes of calculating a reduced registration fee thereunder, the
184,098 "unused" shares under this Registration Statement were "transferred
over" to the new Form S-8 Registration Statement.
Accordingly, the Company hereby deregisters 184,098 shares of the Common Stock
originally covered by the Registration Statement.
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<PAGE>
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-8, and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of San Diego, State of California, on this 19th day of
December, 1997.
SYNBIOTICS CORPORATION
By /s/ Michael K. Green
------------------------
Michael K. Green
Vice President - Finance
Pursuant to the requirements of the Securities Act of 1933, this registration
statement has been signed by the following persons in the capacities and on the
date indicated.
<TABLE>
<CAPTION>
SIGNATURE TITLE DATE
- --------- ----- ----
<S> <C> <C>
/s/ Kenneth M. Cohen Chief Executive Officer, President and Director December 19, 1997
- -------------------- (Principal Executive Officer)
Kenneth M. Cohen
/s/ Michael K. Green Chief Financial Officer and Vice President - Finance December 19, 1997
- -------------------- (Principal Financial Officer)
Michael K. Green
/s/ Keith A. Butler Chief Accounting Officer and Corporate Controller December 19, 1997
- -------------------- (Principal Accounting Officer)
Keith A. Butler
/s/ Patrick Owen Burns Director December 19, 1997
- --------------------
Patrick Owen Burns
/s/ James C. DeCesare Director December 19, 1997
- --------------------
James C. DeCesare
/s/ Brenda D. Gavin Director December 19, 1997
- --------------------
Brenda D. Gavin
/s/ M. Blake Ingle Director December 19, 1997
- --------------------
M. Blake Ingle
/s/ Donald E. Phillips Director December 19, 1997
- --------------------
Donald E. Phillips
</TABLE>
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