<PAGE> 1
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13D
UNDER THE SECURITIES EXCHANGE ACT OF 1934
Amendment No. 1
Ribi ImmunoChem Research, Inc.
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(Name of Issuer)
Common Stock, $.001 Par Value
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(Title of Class of Securities)
762553105
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(CUSIP Number)
Donald F. Parman, SmithKline Beecham Corporation
One Franklin Plaza, Philadelphia, PA 19102
Telephone 215-751-7633
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(Name, Address and Telephone Number of Person Authorized to
Receive Notices and Communications)
March 13, 1998
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(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 which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box / /.
Check the following box if a fee is being paid with the statement / /. (A fee is
not required only if the reporting person: (1) has a previous statement on file
reporting beneficial ownership of more than five percent of the class of
securities described in Item 1; and (2) has filed no amendment subsequent
thereto reporting beneficial ownership of five percent or less of such class.)
(See Rule 13d-7.)
Note: Six copies of this statement, including all exhibits, should be filed with
the Commission. See Rule 13d-1(a) 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
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).
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SCHEDULE 13D
CUSIP NO. 762553105 PAGE 2 OF 6 PAGES
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This Amendment No. 1 amends and supplements the Statement of Schedule 13D
electronically filed with the Securities and Exchange Commission (the
"Commission") on January 9, 1998 (the "Initial Statement") by S.R. One, Limited
and SmithKline Beecham Biologicals Manufacturing S.A.
The undersigned hereby amends and supplements Item 5 of the Initial Statement by
the following information (capitalized terms used herein without definition
shall have the same meaning as set forth in the Initial Statement).
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SCHEDULE 13D
CUSIP NO. 762553105 PAGE 3 OF 6 PAGES
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1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
S.R. One, Limited
23-1729901
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2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) /x/
(b) / /
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3 SEC USE ONLY
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4 SOURCE OF FUNDS*
WC
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5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
TO ITEMS 2(D) OR 2(E) / /
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6 CITIZENSHIP OR PLACE OF ORGANIZATION
Pennsylvania Business Trust
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7 SOLE VOTING POWER
NUMBER OF
SHARES 260,608
BENEFICIALLY -----------------------------------------------------------------
OWNED BY 8 SHARED VOTING POWER
EACH
REPORTING
PERSON -----------------------------------------------------------------
WITH 9 SOLE DISPOSITIVE POWER
260,608
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10 SHARED DISPOSITIVE POWER
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11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
260,608
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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)
1.2%
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14 TYPE OF REPORTING PERSON*
CO
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*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE> 4
Page 4 of 6 Pages
Item 1. Security and Issuer.
Item 2. Identity and Background.
Item 3. Source and Amount of Funds or Other Consideration.
Item 4. Purpose of Transaction.
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Page 5 of 6 Pages
Item 5. Interest in Securities of the Issuer.
(a) Amount and Percent Beneficially Owned
<TABLE>
<CAPTION>
Reporting Person No. of Shares Percent
<S> <C> <C>
SRO 260,608 (1) 1.2%
SBBM 2,155,172 (2) 10.1%
----
11.3%
</TABLE>
(c) SRO sold 415,000 shares of Common Stock in the open market in the
following manner:
<TABLE>
<CAPTION>
Registered Name Transaction Date No. of Shares Price Per Share
<S> <C> <C> <C>
S.R. One, Limited 01/02/98 14,000 $4.00
S.R. One, Limited 01/05/98 9,000 $4.00
S.R. One, Limited 01/06/98 18,000 $4.00
S.R. One, Limited 01/14/98 25,000 $4.01
S.R. One, Limited 01/15/98 20,000 $4.06
S.R. One, Limited 01/16/98 1,000 $4.00
S.R. One, Limited 01/21/98 15,000 $4.00
S.R. One, Limited 01/22/98 26,000 $4.00
S.R. One, Limited 01/23/98 5,000 $4.00
S.R. One, Limited 01/26/98 10,000 $4.00
-------
143,000
S.R. One, Limited 03/12/98 42,000 $5.57
S.R. One, Limited 03/13/98 53,000 $5.58
S.R. One, Limited 03/16/98 135,000 $5.83
S.R. One, Limited 03/17/98 42,000 $5.50
S.R. One, Limited 3/19/98 6,000 $5.63
S.R. One, Limited 3/25/98 12,000 $5.67
-------
290,000
</TABLE>
<PAGE> 6
Page 6 of 6 Pages
Item 6. Contracts, Arrangements, Understandings or
Relationship With respect to Securities of the Issuer.
Item 7. Materials to be Filed as Exhibits.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and
belief, the undersigned certifies that the information set forth in the
Statement is true, correct and complete.
DATED: April 2, 1998
S.R.ONE, LIMITED
By: /s/ Donald F. Parman
---------------------------
Donald F. Parman
Vice President
and Secretary
