<PAGE>1
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13D
Under the Securities Exchange Act of 1934
Bigmar, Inc.
----------------------------------------------------
(Name of Issuer)
Common Stock, par value $.001
----------------------------------------------------
(Title of Class of Securities)
089893101
----------------------------------------------------
(CUSIP Number)
G. Rovelli
Chemholding SA
Via Pian Scairolo 6
CH-6917 Barbengo
Switzerland
----------------------------------------------------
(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)
Copies to:
Neil Novikoff
Willkie Farr & Gallagher
153 East 53rd Street
New York, NY 10022
(212) 821-8000
June 19, 1996
----------------------------------------------------
(Date of Event which Requires
Filing of this Schedule)
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: [ ]
<PAGE>2
SCHEDULE 13D
------------------------- ---------------------------------
| CUSIP No. 089893101 | |Page 2 of 13 Pages
| --------- | | -------- -------
------------------------- ---------------------------------
- ---- -------------------------------------------------------------------------
|1 |NAME OF REPORTING PERSON |
| |S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| |Chemholding SA |
- ----|-------------------------------------------------------------------------
|2 |CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] |
| | (b) [x] |
| | |
- ----|-------------------------------------------------------------------------
|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 |
| | |
| |Switzerland |
- ---------------|--------|-----------------------------------------------------
| | 7 |SOLE VOTING POWER |
| | | |
| | |1,010,563 shares of Common Stock |
| ---------|-----------------------------------------------------
| NUMBER OF | 8 |SHARED VOTING POWER |
| SHARES | | |
|BENEFICIALLY | | 0 shares of Common Stock |
| OWNED BY | | |
| EACH ---------|----------------------------------------------------|
| REPORTING | 9 |SOLE DISPOSITIVE POWER |
|PERSON WITH | | |
| | |1,010,563 shares of Common Stock |
| ---------|-----------------------------------------------------
| | 10 |SHARED DISPOSITIVE POWER |
| | | |
| | |0 shares of Common Stock |
- ----|-------------------------------------------------------------------------
|11 |AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| |1,010,563 shares of Common Stock |
- ----|-------------------------------------------------------------------------
|12 |CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] |
| | |
- ----|-------------------------------------------------------------------------
|13 |PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) |
| | |
| |25.4% |
- ----|-------------------------------------------------------------------------
|14 |TYPE OF REPORTING PERSON* |
| | |
| |CO |
- ----|-------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT
<PAGE>3
SCHEDULE 13D
------------------------- ---------------------------------
| CUSIP No. 089893101 | |Page 3 of 13 Pages
| --------- | | -------- -------
------------------------- ---------------------------------
- ---- -------------------------------------------------------------------------
|1 |NAME OF REPORTING PERSON |
| |S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| |Maria Pia Melera |
- ----|-------------------------------------------------------------------------
|2 |CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] |
| | (b) [x] |
| | |
- ----|-------------------------------------------------------------------------
|3 |SEC USE ONLY |
| | |
- ----|-------------------------------------------------------------------------
|4 |SOURCE OF FUNDS* |
| | |
| |PF |
- ----|-------------------------------------------------------------------------
|5 |CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT |
| |TO ITEMS 2(d) or 2(e) [ ] |
| | |
- ----|-------------------------------------------------------------------------
|6 |CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| |Switzerland |
- ---------------|--------|-----------------------------------------------------
| | 7 |SOLE VOTING POWER |
| | | |
| | |70,775 shares of Common Stock |
| ---------|-----------------------------------------------------
| NUMBER OF | 8 |SHARED VOTING POWER |
| SHARES | | |
|BENEFICIALLY | |1,010,563 shares of Common Stock |
| OWNED BY | | |
| EACH ---------|----------------------------------------------------|
| REPORTING | 9 |SOLE DISPOSITIVE POWER |
|PERSON WITH | | |
| | |70,775 shares of Common Stock |
| ---------|-----------------------------------------------------
| | 10 |SHARED DISPOSITIVE POWER |
| | | |
| | |1,010,563 shares of Common Stock |
- ----|-------------------------------------------------------------------------
|11 |AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| |1,081,338 shares of Common Stock |
- ----|-------------------------------------------------------------------------
|12 |CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] |
| | |
- ----|-------------------------------------------------------------------------
|13 |PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) |
| | |
| |27.1% |
- ----|-------------------------------------------------------------------------
|14 |TYPE OF REPORTING PERSON* |
| | |
| |IN |
- ----|-------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT
<PAGE>4
SCHEDULE 13D
------------------------- ---------------------------------
| CUSIP No. 089893101 | |Page 4 of 13 Pages
| --------- | | -------- -------
------------------------- ---------------------------------
- ---- -------------------------------------------------------------------------
|1 |NAME OF REPORTING PERSON |
| |S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| |Jan Jacob van Troostenburg |
- ----|-------------------------------------------------------------------------
|2 |CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] |
| | (b) [x] |
| | |
- ----|-------------------------------------------------------------------------
|3 |SEC USE ONLY |
| | |
- ----|-------------------------------------------------------------------------
|4 |SOURCE OF FUNDS* |
| | |
| |PF |
- ----|-------------------------------------------------------------------------
|5 |CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT |
| |TO ITEMS 2(d) or 2(e) [ ] |
| | |
- ----|-------------------------------------------------------------------------
|6 |CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| |Switzerland |
- ---------------|--------|-----------------------------------------------------
| | 7 |SOLE VOTING POWER |
| | | |
| | |70,775 shares of Common Stock |
| ---------|-----------------------------------------------------
| NUMBER OF | 8 |SHARED VOTING POWER |
| SHARES | | |
|BENEFICIALLY | |1,010,563 shares of Common Stock |
| OWNED BY | | |
| EACH ---------|----------------------------------------------------|
| REPORTING | 9 |SOLE DISPOSITIVE POWER |
|PERSON WITH | | |
| | |70,775 shares of Common Stock |
| ---------|-----------------------------------------------------
| | 10 |SHARED DISPOSITIVE POWER |
| | | |
| | |1,010,563 shares of Common Stock |
- ----|-------------------------------------------------------------------------
|11 |AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| |1,081,338 shares of Common Stock |
- ----|-------------------------------------------------------------------------
|12 |CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] |
| | |
- ----|-------------------------------------------------------------------------
|13 |PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) |
| | |
| |27.1% |
- ----|-------------------------------------------------------------------------
|14 |TYPE OF REPORTING PERSON* |
| | |
| |IN |
- ----|-------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT
<PAGE>5
SCHEDULE 13D
------------------------- ---------------------------------
| CUSIP No. 089893101 | |Page 5 of 13 Pages
| --------- | | -------- -------
------------------------- ---------------------------------
- ---- -------------------------------------------------------------------------
|1 |NAME OF REPORTING PERSON |
| |S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| |Pier Angelo Ghirlanda |
- ----|-------------------------------------------------------------------------
|2 |CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] |
| | (b) [x] |
| | |
- ----|-------------------------------------------------------------------------
|3 |SEC USE ONLY |
| | |
- ----|-------------------------------------------------------------------------
|4 |SOURCE OF FUNDS* |
| | |
| |PF |
- ----|-------------------------------------------------------------------------
|5 |CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT |
| |TO ITEMS 2(d) or 2(e) [ ] |
| | |
- ----|-------------------------------------------------------------------------
|6 |CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| |Switzerland |
- ---------------|--------|-----------------------------------------------------
| | 7 |SOLE VOTING POWER |
| | | |
| | |70,775 shares of Common Stock |
| ---------|-----------------------------------------------------
| NUMBER OF | 8 |SHARED VOTING POWER |
| SHARES | | |
|BENEFICIALLY | |1,010,563 shares of Common Stock |
| OWNED BY | | |
| EACH ---------|----------------------------------------------------|
| REPORTING | 9 |SOLE DISPOSITIVE POWER |
|PERSON WITH | | |
| | |70,775 shares of Common Stock |
| ---------|-----------------------------------------------------
| | 10 |SHARED DISPOSITIVE POWER |
| | | |
| | |1,010,563 shares of Common Stock |
- ----|-------------------------------------------------------------------------
|11 |AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| |1,081,338 shares of Common Stock |
- ----|-------------------------------------------------------------------------
|12 |CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] |
| | |
- ----|-------------------------------------------------------------------------
|13 |PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) |
| | |
| |27.1% |
- ----|-------------------------------------------------------------------------
|14 |TYPE OF REPORTING PERSON* |
| | |
| |IN |
- ----|-------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT
<PAGE>6
SCHEDULE 13D
------------------------- ---------------------------------
| CUSIP No. 089893101 | |Page 6 of 13 Pages
| --------- | | -------- -------
------------------------- ---------------------------------
- ---- -------------------------------------------------------------------------
|1 |NAME OF REPORTING PERSON |
| |S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| |Giovanni Pelli |
- ----|-------------------------------------------------------------------------
|2 |CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] |
| | (b) [x] |
| | |
- ----|-------------------------------------------------------------------------
|3 |SEC USE ONLY |
| | |
- ----|-------------------------------------------------------------------------
|4 |SOURCE OF FUNDS* |
| | |
| |PF |
- ----|-------------------------------------------------------------------------
|5 |CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT |
| |TO ITEMS 2(d) or 2(e) [ ] |
| | |
- ----|-------------------------------------------------------------------------
|6 |CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| |Switzerland |
- ---------------|--------|-----------------------------------------------------
| | 7 |SOLE VOTING POWER |
| | | |
| | |70,775 shares of Common Stock |
| ---------|-----------------------------------------------------
| NUMBER OF | 8 |SHARED VOTING POWER |
| SHARES | | |
|BENEFICIALLY | |1,010,563 shares of Common Stock |
| OWNED BY | | |
| EACH ---------|----------------------------------------------------|
| REPORTING | 9 |SOLE DISPOSITIVE POWER |
|PERSON WITH | | |
| | |70,775 shares of Common Stock |
| ---------|-----------------------------------------------------
| | 10 |SHARED DISPOSITIVE POWER |
| | | |
| | |1,010,563 shares of Common Stock |
- ----|-------------------------------------------------------------------------
|11 |AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| |1,081,338 shares of Common Stock |
- ----|-------------------------------------------------------------------------
|12 |CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] |
| | |
- ----|-------------------------------------------------------------------------
|13 |PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) |
| | |
| |27.1% |
- ----|-------------------------------------------------------------------------
|14 |TYPE OF REPORTING PERSON* |
| | |
| |IN |
- ----|-------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT
<PAGE>7
Item 1. Security and Issuer.
This Schedule 13D relates to the common stock, par value $.001 per
share (the "Common Stock"), of Bigmar, Inc., a Delaware corporation (the
"Company"), and is being filed pursuant to Rule 13d-1 under the Securities
Exchange Act of 1934, as amended (the "Exchange Act"). The address of the
principal executive offices of the Company is 6660 Doubletree Avenue, Columbus,
Ohio 43229.
Item 2. Identity and Background.
(a) This statement is being filed by (i) Chemholding SA, a Swiss
corporation ("Chemholding"), (ii) Mr. Jan Jacob van Troostenburg, the former
President of Chemholding, (iii) Mr. Pier Angelo Ghirlanda, director of an
affiliate of Chemholding, (iv) Mr. Giovanni Pelli, an executive officer of an
affiliate of Chemholding and (v) Ms. Maria Pia Melera, the spouse of an
executive officer of a subsidiary of Chemholding (collectively referred to as
the "Reporting Entities").
(b) The address of the principal business and principal office of each
of the Reporting Entities is Via Pian Scairolo 6, CH-6917 Barbengo, Switzerland.
(c) The principal business of Chemholding is the manufacture and
distribution of pharmaceutical products. Each of the other Reporting Entities is
employed by Chemholding or one of its affiliates in a similar line of business.
(d) None of the Reporting Entities, has, during the last five years,
been convicted in a criminal proceeding (excluding traffic violations or similar
misdemeanors).
(e) None of the Reporting Entities has, during the last five years,
been a party to a civil proceeding of a judicial or administrative body of
competent jurisdiction and as a result of such proceeding was or is subject to a
judgment, decree or final order enjoining future violations of, or
<PAGE>8
prohibiting or mandating activities subject to, federal or state securities laws
or finding any violation with respect to such laws.
(f) Each of the individuals referred to in paragraph (a) above is a
Swiss citizen.
Item 3. Source and Amount of Funds or Other Consideration.
The shares of Common Stock referred to herein were acquired in 1995 as
part of a reorganization of equity interests in Bioren S.A., a subsidiary of the
Company.
Item 4. Purpose of Transaction.
The purchase was effected as part of a reorganization of equity
interests in Bioren S.A. The Reporting Entities are not involved, and do not
expect to be involved, in the management of the Company and are not represented
on the Board of Directors of the Company.
The Reporting Entities may from time to time acquire additional shares
of Common Stock or dispose of shares of Common Stock through open market or
privately negotiated transactions or otherwise, depending on existing market
conditions and other considerations discussed below.
The Reporting Entities intend to review their investment in the Company
on a continuing basis and, depending upon the price and availability of shares
of Common Stock, subsequent developments affecting the Company, the Company's
business and prospects, other investment and business opportunities available to
the Reporting Entities, general stock market and economic conditions, tax
considerations and other factors considered relevant, may decide at any time not
to increase, or to decrease, the size of their investment in the Company.
Except as set forth herein or in Item 6, none of the Reporting Entities
has any plans or proposals which relate to or would result in: (a) the
acquisition by any person of additional securities of the Company, or the
disposition of securities of the Company; (b) an extraordinary corporate
transaction, such as a merger, reorganization or liquidation, involving the
Company or any of its
<PAGE>9
subsidiaries; (c) a sale or transfer of a material amount of assets of the
Company or any of its subsidiaries; (d) any change in the present Board of
Directors or management of the Company, including any plans or proposals to
change the number or term of directors or to fill any existing vacancies on the
board; (e) any material change in the present capitalization or dividend policy
of the Company; (f) any other material change in the Company's business or
corporate structure; (g) changes in the Company's charter, By-Laws or
instruments corresponding thereto or other actions which may impede the
acquisition of control of the Company by any person; (h) causing a class of
securities of the Company to be delisted from a national securities exchange or
to cease to be authorized to be quoted in an inter-dealer quotation system of a
registered national securities association; (i) a class of equity securities of
the Company becoming eligible for termination of registration pursuant to
Section 12(g)(4) of the Exchange Act; or (j) any action similar to any of those
enumerated above.
Item 5. Interest in Securities of the Issuer.
(a) By reason of their respective relationships with Chemholding, each
of the other Reporting Entities may be deemed under Rule 13d-3 under the
Exchange Act to own beneficially all of the shares of Common Stock which
Chemholding beneficially owns, which together represents approximately 27.1% of
the outstanding shares of Common Stock.
(b) Chemholding has the sole power to vote or to direct the vote, and
to dispose or to direct the disposition of, the 1,010,563 shares of Common Stock
held by it, representing 25.4% of the issued and outstanding shares of Common
Stock. Each individual Reporting Entity has the sole power to vote or to direct
the vote, and to dispose or to direct the disposition of, the 70,775 shares of
Common Stock held by such person, representing 1.8% of the issued and
outstanding shares of Common Stock. Each individual Reporting Entity may be
deemed to share the power to vote or to direct the vote, and to dispose or to
direct the disposition of, the 1,010,563 shares of Common Stock
<PAGE>10
held by Chemholding, which, together with such persons shares, represents 27.1%
of the issued and outstanding shares of Common Stock.
(c) None of the Reporting Entities has effected any transactions in the
Common Stock during the preceding 60 days.
(d) Except as set forth in this Item 5, no person other than each
respective record owner referred to herein of securities is known to have the
right to receive or the power to direct the receipt of dividends from, or the
proceeds from the sale of, such securities.
(e) Not applicable.
Item 6. Contracts, Arrangements, Understandings or
Relationships With Respect to Securities of the Issuer.
Pursuant to Rule 13d-1(f) promulgated under the Exchange Act, the
Reporting Persons have entered into an agreement with respect to the joint
filing of this statement, and any amendment or amendments hereto, which is being
filed as Exhibit 1 to this Schedule 13D and is incorporated herein by reference.
Except as described herein and by reference to Item 4 above, there are
no contracts, arrangements, understandings or relationships among the persons
named in Item 2 or between such persons and any other person with respect to any
securities of the Company.
By virtue of the relationships among the Reporting Entities as
described in Item 2, the Reporting Entities may be deemed to be a "group" under
the Federal securities laws. Each Reporting Entity disclaims any beneficial
ownership of the shares reported herein as being beneficially owned by the other
Reporting Entities.
<PAGE>11
Item 7. Material to be Filed as Exhibits.
1. Joint Filing Agreement, dated February 28, 1997, by and among the
Reporting Entities.
<PAGE>12
SIGNATURES
After reasonable inquiry and to the best of our knowledge and belief,
the undersigned certify that the information set forth in this statement is
true, complete and correct.
Dated: February 28, 1997 Chemholding S.A.
By: /s/ Jan Jacob van Troostenburg
----------------------------------
Jan Jacob van Troostenburg
Authorized Signatory
Dated: February 28, 1997
/s/ Jan Jacob van Troostenburg
----------------------------------
Jan Jacob van Troostenburg
Dated: February 28, 1997
/s/ Maria Pia Melera
----------------------------------
Maria Pia Melera
Dated: February 28, 1997
/s/ Pier Angelo Ghirlanda
----------------------------------
Pier Angelo Ghirlanda
Dated: February 28, 1997
/s/ Giovanni Pelli
----------------------------------
Giovanni Pelli
<PAGE>
EXHIBIT 1
JOINT FILING AGREEMENT
The undersigned hereby agree that the statement on Schedule 13D dated
February 28, 1997 with respect to the Common Stock of Bigmar, Inc. is, and any
amendments thereto signed by each of the undersigned shall be, filed on behalf
of each of us pursuant to and in accordance with the provisions of Rule 13d-1(f)
under the Securities Exchange Act of 1934.
This Agreement may be executed in counterparts, each of which shall for
all purposes be deemed to be an original and all of which shall constitute one
and the same instrument.
Dated: February 28, 1997
Chemholding S.A.
By: /s/ Jan Jacob van Troostenburg
----------------------------------
Jan Jacob van Troostenburg
Authorized Signatory
/s/ Jan Jacob van Troostenburg
----------------------------------
Jan Jacob van Troostenburg
/s/ Maria Pia Melera
----------------------------------
Maria Pia Melera
/s/ Pier Angelo Ghirlanda
----------------------------------
Pier Angelo Ghirlanda
/s/ Giovanni Pelli
----------------------------------
Giovanni Pelli
