<PAGE>
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13D
(Rule 13d-101)
INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO
RULE 13d-2(a)
(Amendment No. 1)
LJL BioSystems, Inc.
------------------------------------------------------------------------
(Name of Issuer)
COMMON STOCK, par value $0.001
------------------------------------------------------------------------
(Title of Class of Securities)
50187310
------------------------------------------------------------------------
CUSIP Number
Bay City Capital Management LLC
750 Battery Street, Suite 600
San Francisco California 94111
(415) 837-0996
with a copy to:
Timothy G. Hoxie, Esq.
Heller Ehrman White & McAuliffe
333 Bush Street
San Francisco, California 94104
(415) 772-6052
------------------------------------------------------------------------
(Name, address and telephone number
of person authorized to receive notices and communications)
February 15, 2000
-----------------
(Date of Event which requires
filing of this statement)
If the filing person has previously filed a statement on Schedule 13G to report
the acquisition that is the subject of this Schedule 13D, and is filing this
statement because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following
box: [_]
(Continued on following pages)
(Page 1 of 8)
<PAGE>
CUSIP NO. 50187310 13D Page 2 of 8 pages
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- ------------------------------------------------------------------------------
1) NAMES OF REPORTING PERSONS
The Bay City Capital Fund I, L.P.
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
2) (a) [_]
(b) [X]
- ------------------------------------------------------------------------------
SEC USE ONLY
3)
- ------------------------------------------------------------------------------
SOURCE OF FUNDS
4)
WC
- ------------------------------------------------------------------------------
5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
PURSUANT TO ITEM 2(d) or 2(e) [_]
- ------------------------------------------------------------------------------
6) CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
- ------------------------------------------------------------------------------
SOLE VOTING POWER
7
NUMBER OF -0-
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 8
-0-
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
9
REPORTING -0-
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 10
-0-
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
11)
-0-
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
12)
[_]
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
13)
0.0%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON
14)
PN
- ------------------------------------------------------------------------------
<PAGE>
CUSIP NO. 50187310 13D Page 3 of 8 pages
--------
- ------------------------------------------------------------------------------
1) NAMES OF REPORTING PERSONS
Bay City Capital Management LLC
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
2) (a) [_]
(b) [X]
- ------------------------------------------------------------------------------
SEC USE ONLY
3)
- ------------------------------------------------------------------------------
SOURCE OF FUNDS
4)
OO
- ------------------------------------------------------------------------------
5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
PURSUANT TO ITEM 2(d) or 2(e) [_]
- ------------------------------------------------------------------------------
6) CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
- ------------------------------------------------------------------------------
SOLE VOTING POWER
7
NUMBER OF -0-
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 8
-0-
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
9
REPORTING -0-
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 10
-0-
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
11)
-0-
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
12)
[_]
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
13)
0.0%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON
14)
OO
- ------------------------------------------------------------------------------
<PAGE>
CUSIP NO. 50187310 13D Page 4 of 8 pages
--------
- ------------------------------------------------------------------------------
1) NAMES OF REPORTING PERSONS
Bay City Capital LLC
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
2) (a) [_]
(b) [X]
- ------------------------------------------------------------------------------
SEC USE ONLY
3)
- ------------------------------------------------------------------------------
SOURCE OF FUNDS
4)
OO
- ------------------------------------------------------------------------------
5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
PURSUANT TO ITEM 2(d) or 2(e) [_]
- ------------------------------------------------------------------------------
6) CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
- ------------------------------------------------------------------------------
SOLE VOTING POWER
7
NUMBER OF -0-
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 8
-0-
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
9
REPORTING -0-
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 10
-0-
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
11)
-0-
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
12)
[_]
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
13)
0.0%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON
14)
OO
- ------------------------------------------------------------------------------
<PAGE>
CUSIP NO. 50187310 13D Page 5 of 8 pages
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INTRODUCTION
Bay City Capital Management LLC, a Delaware limited liability company
("Management"), hereby files this Amendment No. 1 (the "Amendment") to the
Statement on Schedule 13D (the "Statement") on behalf of the Reporting Persons
identified in Item 2 of this Statement pursuant to the Agreement With Respect To
Schedule 13D attached hereto as Exhibit 7(1).
Only those Items amended are reported herein.
Item 4. Purpose Of Transaction.
----------------------
Item 4 is amended by adding the following paragraph at the end thereof:
In a series of open market transactions on the NASDAQ occurring on February 7,
8, 9, 10, 11, 14, and 15, 2000, the Fund disposed of an aggregate of 857,143
shares of Common Stock of the Issuer at an average sales price of approximately
$16.66. The total funds received by the Fund in these transactions was
$14,283,079.75 (excluding broker commissions). A table identifying the sales
occurring within the last sixty days is included in Item 5(c) of this Amendment.
Item 5. Interest in Securities of the Issuer.
-------------------------------------
Item 5 is amended by being replaced in its entirety with the following:
(a) and (b) The aggregate number of shares and percentage of Common Stock of
the Issuer (based upon Issuer's report on Form 10-Q for the quarter ending
September 30, 1999, that the Issuer had 12,730,041 shares of Common Stock
outstanding as of October 31, 1999) beneficially owned by each person named in
Item 2 of the Statement, as well as the number of shares of Common Stock as to
which such person is deemed to have sole power to vote or to
<PAGE>
CUSIP NO. 50187310 13D Page 6 of 8 pages
--------
direct the vote, shared power to vote or to direct the vote, sole power to
dispose or to direct the disposition, or shared power to dispose or direct the
disposition, is set forth in the following table:
<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------
Reporting Person No. of Shares Percentage Power to Vote Power to Dispose
Beneficially of Class Shared Sole Shared Sole
Owned
- -----------------------------------------------------------------------------------------------
<S> <C> <C> <C> <C> <C> <C>
Fund -0- 0.0% -0- -0- -0- -0-
- ----------------------------------------------------------------------------------------------
Management -0- 0.0% -0- -0- -0- -0-
- ----------------------------------------------------------------------------------------------
Bay City LLC -0- 0.0% -0- -0- -0- -0-
- ----------------------------------------------------------------------------------------------
</TABLE>
Each of the Fund, Management and Bay City LLC had previously shared power to
vote and to dispose of the shares beneficially owned by them with each other.
<PAGE>
CUSIP NO. 50187310 13D Page 7 of 8 pages
--------
(c) To the best knowledge of the Reporting Persons, no person described in
paragraph (a) of this Item 5 has effected any transaction in the Common Stock of
the Issuer during the past 60 days other than as set forth in the table below:
<TABLE>
<CAPTION>
-------------------------------------------------------------------------------------
Date Seller # Shares Price Total Funds
Received
-------------------------------------------------------------------------------------
<C> <S> <C> <C> <C>
02/07/00 Fund 3,100 $16.0000 $ 49,600.00
-------------------------------------------------------------------------------------
02/08/00 Fund 241,570 $16.2176 $ 3,917,685.63
-------------------------------------------------------------------------------------
02/09/00 Fund 123,543 $16.5399 $ 2,043,388.87
-------------------------------------------------------------------------------------
02/10/00 Fund 43,435 $16.1258 $ 700,424.12
-------------------------------------------------------------------------------------
02/11/00 Fund 12,300 $15.9278 $ 195,911.94
-------------------------------------------------------------------------------------
02/14/00 Fund 228,260 $15.8480 $ 3,617,007.96
-------------------------------------------------------------------------------------
02/15/00 Fund 204,935 $18.3427 $ 3,759,061.22
-------------------------------------------------------------------------------------
TOTAL 857,143 $14,283,079.75
======= ==============
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</TABLE>
(d) To the best knowledge of the Reporting Persons, no persons other than
the Reporting Persons have the right to receive or the power to direct the
receipt of dividends from, or the proceeds from the sale of, the Common Stock of
the Issuer held by the Reporting Persons.
(e) The date on which the Reporting Persons ceased to be the beneficial
owner of more than 5% of the Common Stock of the Issuer was February 8, 2000.
<PAGE>
CUSIP NO. 50187310 13D Page 8 of 8 pages
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SIGNATURE
After reasonable inquiry and to the best of the undersigned's knowledge and
belief, the undersigned certifies that the information set forth in this
statement is true, complete and correct.
Dated: February 16, 2000
Bay City Capital Management LLC
By: /s/ Fred Craves
---------------
Its: Manager
