Sec Form 13D Filing - BIOTECHNOLOGY VALUE FUND L P filing for XOMA Corp (XOMA) - 2024-01-16

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO

§ 240.13d-2(a)

(Amendment No. 10)¹

XOMA Corporation

(Name of Issuer)

Common Stock, $0.0075 par value

(Title of Class of Securities)

98419J 206

(CUSIP Number)

JAMES KRATKY

BVF PARTNERS L.P.

44 Montgomery St., 40th Floor

San Francisco, California 94104

(415) 525-8800

 

KENNETH A. SCHLESINGER, ESQ.

OLSHAN FROME WOLOSKY LLP

1325 Avenue of the Americas

New York, New York 10019

(212) 451-2300

(Name, Address and Telephone Number of Person

Authorized to Receive Notices and Communications)

 

January 11, 2024

(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 schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-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 § 240.13d-7 for other parties to whom copies are to be sent.

 

 

1              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).

	1		NAME OF REPORTING PERSON
				BIOTECHNOLOGY VALUE FUND, 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 BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)															☐
	6		CITIZENSHIP OR PLACE OF ORGANIZATION
				DELAWARE
NUMBER OF				7		SOLE VOTING POWER
SHARES
BENEFICIALLY							- 0 -
OWNED BY				8		SHARED VOTING POWER
EACH
REPORTING							1,789,844
PERSON WITH				9		SOLE DISPOSITIVE POWER
							- 0 -
				10		SHARED DISPOSITIVE POWER
							1,789,844
	11		AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
				1,789,844
	12		CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES															☐
	13		PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
				15.6%
	14		TYPE OF REPORTING PERSON
				PN

  

	1		NAME OF REPORTING PERSON
				BVF I GP LLC
	2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP															(a) ☒
																		(b) ☐
	3		SEC USE ONLY
	4		SOURCE OF FUNDS
				AF
	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
NUMBER OF				7		SOLE VOTING POWER
SHARES
BENEFICIALLY							- 0 -
OWNED BY				8		SHARED VOTING POWER
EACH
REPORTING							1,789,844
PERSON WITH				9		SOLE DISPOSITIVE POWER
							- 0 -
				10		SHARED DISPOSITIVE POWER
							1,789,844
	11		AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
				1,789,844
	12		CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES															☐
	13		PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
				15.6%
	14		TYPE OF REPORTING PERSON
				OO

  

 

	1		NAME OF REPORTING PERSON
				BIOTECHNOLOGY VALUE FUND II, 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 BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)															☐
	6		CITIZENSHIP OR PLACE OF ORGANIZATION
				DELAWARE
NUMBER OF				7		SOLE VOTING POWER
SHARES
BENEFICIALLY							- 0 -
OWNED BY				8		SHARED VOTING POWER
EACH
REPORTING							1,618,637
PERSON WITH				9		SOLE DISPOSITIVE POWER
							- 0 -
				10		SHARED DISPOSITIVE POWER
							1,618,637
	11		AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
				1,618,637
	12		CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES															☐
	13		PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
				14.1%
	14		TYPE OF REPORTING PERSON
				PN

  

 

	1		NAME OF REPORTING PERSON
				BVF II GP LLC
	2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP															(a) ☒
																		(b) ☐
	3		SEC USE ONLY
	4		SOURCE OF FUNDS
				AF
	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
NUMBER OF				7		SOLE VOTING POWER
SHARES
BENEFICIALLY							- 0 -
OWNED BY				8		SHARED VOTING POWER
EACH
REPORTING							1,618,637
PERSON WITH				9		SOLE DISPOSITIVE POWER
							- 0 -
				10		SHARED DISPOSITIVE POWER
							1,618,637
	11		AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
				1,618,637
	12		CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES															☐
	13		PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
				14.1%
	14		TYPE OF REPORTING PERSON
				OO

  

 

1

NAME OF REPORTING PERSON

BIOTECHNOLOGY VALUE TRADING FUND OS, 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 BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)

☐

6

CITIZENSHIP OR PLACE OF ORGANIZATION

CAYMAN ISLANDS

NUMBER OF

7

SOLE VOTING POWER

SHARES

BENEFICIALLY

- 0 -

OWNED BY

8

SHARED VOTING POWER

EACH

REPORTING

75,287

PERSON WITH

9

SOLE DISPOSITIVE POWER

- 0 -

10

SHARED DISPOSITIVE POWER

75,287

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

75,287

12

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

☐

13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

LESS THAN 1%

14

TYPE OF REPORTING PERSON

PN

  

 

1

NAME OF REPORTING PERSON

BVF PARTNERS OS LTD.

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) ☒

(b) ☐

3

SEC USE ONLY

4

SOURCE OF FUNDS

AF

5

CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)

☐

6

CITIZENSHIP OR PLACE OF ORGANIZATION

CAYMAN ISLANDS

NUMBER OF

7

SOLE VOTING POWER

SHARES

BENEFICIALLY

- 0 -

OWNED BY

8

SHARED VOTING POWER

EACH

REPORTING

75,287

PERSON WITH

9

SOLE DISPOSITIVE POWER

- 0 -

10

SHARED DISPOSITIVE POWER

75,287

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

75,287

12

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

☐

13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

LESS THAN 1%

14

TYPE OF REPORTING PERSON

CO

  

 

	1		NAME OF REPORTING PERSON
				BVF GP HOLDINGS LLC
	2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP															(a) ☒
																		(b) ☐
	3		SEC USE ONLY
	4		SOURCE OF FUNDS
				AF
	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
NUMBER OF				7		SOLE VOTING POWER
SHARES
BENEFICIALLY							- 0 -
OWNED BY				8		SHARED VOTING POWER
EACH
REPORTING							3,408,481
PERSON WITH				9		SOLE DISPOSITIVE POWER
							- 0 -
				10		SHARED DISPOSITIVE POWER
							3,408,481
	11		AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
				3,408,481
	12		CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES															☐
	13		PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
				29.7%
	14		TYPE OF REPORTING PERSON
				OO

  

 

	1		NAME OF REPORTING PERSON
				BVF PARTNERS L.P.
	2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP															(a) ☒
																		(b) ☐
	3		SEC USE ONLY
	4		SOURCE OF FUNDS
				AF
	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
NUMBER OF				7		SOLE VOTING POWER
SHARES
BENEFICIALLY							- 0 -
OWNED BY				8		SHARED VOTING POWER
EACH
REPORTING							3,633,743
PERSON WITH				9		SOLE DISPOSITIVE POWER
							- 0 -
				10		SHARED DISPOSITIVE POWER
							3,633,743
	11		AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
				3,633,743
	12		CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES															☐
	13		PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
				31.6%
	14		TYPE OF REPORTING PERSON
				PN, IA

  

 

	1		NAME OF REPORTING PERSON
				BVF INC.
	2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP															(a) ☒
																		(b) ☐
	3		SEC USE ONLY
	4		SOURCE OF FUNDS
				AF
	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
NUMBER OF				7		SOLE VOTING POWER
SHARES
BENEFICIALLY							- 0 -
OWNED BY				8		SHARED VOTING POWER
EACH
REPORTING							3,633,743
PERSON WITH				9		SOLE DISPOSITIVE POWER
							- 0 -
				10		SHARED DISPOSITIVE POWER
							3,633,743
	11		AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
			0;
				3,633,743
	12		CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES															☐
	13		PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
				31.6%
	14		TYPE OF REPORTING PERSON
				CO

  

 

	1		NAME OF REPORTING PERSON
				MARK N. LAMPERT
	2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP															(a) ☒
																		(b) ☐
	3		SEC USE ONLY
	4		SOURCE OF FUNDS
				AF
	5		CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)															☐
	6		CITIZENSHIP OR PLACE OF ORGANIZATION
				USA
NUMBER OF				7		SOLE VOTING POWER
SHARES
BENEFICIALLY							- 0 -
OWNED BY				8		SHARED VOTING POWER
EACH
REPORTING							3,633,743
PERSON WITH				9		SOLE DISPOSITIVE POWER
							- 0 -
				10		SHARED DISPOSITIVE POWER
							3,633,743
	11		AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
				3,633,743
	12		CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES															☐
	13		PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
				31.6%
	14		TYPE OF REPORTING PERSON
				IN

  

The following constitutes Amendment No. 10 to the Schedule 13D filed by the undersigned (“Amendment No. 10”). This Amendment No. 10 amends the Schedule 13D as specifically set forth herein.

Item 2.

Identity and Background.

Item 2 is hereby amended to add the following:

As of January 11, 2024, Matthew Perry, a former partner at Partners, is no longer a member of a Section 13(d) group with the other Reporting Persons. Accordingly, Mr. Perry is no longer a Reporting Person. The remaining Reporting Persons will continue to file statements on Schedule 13D with respect to securities of the Issuer to the extent required by applicable law. Mr. Perry continues to serve as a director of the Issuer.

Item 3.

Source and Amount of Funds or Other Consideration.

Item 3 is hereby amended and restated to read as follows:

The Shares purchased by BVF, BVF2 and Trading Fund OS and held in the Partners Managed Accounts were purchased with working capital (which may, at any given time, include margin loans made by brokerage firms in the ordinary course of business) in open market purchases, except as otherwise noted. The aggregate purchase price of the 1,789,844 Shares owned directly by BVF is approximately $20,155,453, including brokerage commissions. The aggregate purchase price of the 1,618,637 Shares owned directly by BVF2 is approximately $19,520,410, including brokerage commissions. The aggregate purchase price of the 75,287 Shares owned directly by Trading Fund OS is approximately $303,407, including brokerage commissions. The aggregate purchase price of the 149,975 Shares held in the Partners Managed Accounts is approximately $641,166, including brokerage commissions.

The aggregate purchase price of the 2,313 shares of Series X Convertible Preferred Stock, par value $0.05 per share (the “Series X Preferred Stock”), owned directly by BVF is approximately $9,321,390, including brokerage commissions. The aggregate purchase price of the 1,506 shares of Series X Preferred Stock owned directly by BVF2 is approximately $6,069,180, including brokerage commissions. The aggregate purchase price of the 412 shares of Series X Preferred Stock owned directly by Trading Fund OS is approximately $1,660,360, including brokerage commissions. The aggregate purchase price of the 772 shares of Series X Preferred Stock held in the Partners Managed Accounts is approximately $3,111,160, including brokerage commissions.

Item 4.

Purpose of Transaction.

Item 4 is hereby amended to add the following:

As of January 11, 2024, Matthew Perry ceased to be a partner at Partners. Mr. Perry continues to serve as a director of the Issuer.

Item 5.

Interest in Securities of the Issuer.

Items 5(a)-(c) are hereby amended and restated to read as follows:

(a)       The aggregate percentage of Shares reported owned by each person named herein is based on 11,487,808 Shares outstanding as of November 2, 2023, which is the total number of Shares outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on November 7, 2023.

As of the date hereof, the Reporting Persons and the Partners Managed Accounts hold an aggregate of 5,003 shares of Series X Preferred Stock, convertible into an aggregate of 5,003,000 Shares. Each share of Series X Preferred Stock is convertible into 1,000 Shares. The Reporting Persons and the Partners Managed Accounts shall not have the right to convert any portion of the Series X Preferred Stock held by them to the extent that, after giving effect to such conversion, they, together with their Attribution Parties (as defined in the Series X Preferred Stock Certificate of Designation of Preferences, Rights and Limitations), would beneficially own a number of Shares in excess of 19.99% of the number of Shares outstanding immediately after giving effect to the issuance of Shares pursuant to such conversion. As of the date hereof, the Series X Beneficial Ownership Limitation prohibits the conversion of all the Series X Preferred Stock held by the Reporting Persons and the Partners Managed Accounts.

As of the date hereof, (i) BVF beneficially owned 1,789,844 Shares, excluding 2,313,000 Shares issuable upon the conversion of certain Series X Preferred Stock held by it, representing percentage ownership of approximately 15.6% of the Shares outstanding, (ii) BVF2 beneficially owned 1,618,637 Shares, excluding 1,506,000 Shares issuable upon the conversion of certain Series X Preferred Stock held by it, representing percentage ownership of approximately 14.1% of the Shares outstanding, (iii) Trading Fund OS beneficially owned 75,287 Shares, excluding 412,000 Shares issuable upon the conversion of certain Series X Preferred Stock held by it, representing percentage ownership of less than 1% of the Shares outstanding, and (iv) 149,975 Shares were held in the Partners Managed Accounts, excluding 772,000 Shares issuable upon the conversion of certain Series X Preferred Stock held in the Partners Managed Accounts, representing percentage ownership of approximately 1.3% of the Shares outstanding.

BVF GP, as the general partner of BVF, may be deemed to beneficially own the 1,789,844 Shares beneficially owned by BVF, representing percentage ownership of approximately 15.6% of the Shares outstanding.

BVF2 GP, as the general partner of BVF2, may be deemed to beneficially own the 1,618,637 Shares beneficially owned by BVF2, representing percentage ownership of approximately 14.1% of the Shares outstanding.

Partners OS, as the general partner of Trading Fund OS, may be deemed to beneficially own the 75,287 Shares beneficially owned by Trading Fund OS, representing percentage ownership of less than 1% of the Shares outstanding.

BVF GPH, as the sole member of each of BVF GP and BVF2 GP, may be deemed to beneficially own the 3,408,481 Shares beneficially owned in the aggregate by BVF and BVF2, representing percentage ownership of approximately 29.7% of the Shares outstanding.

Partners, as the investment manager of BVF, BVF2, Trading Fund OS and the Partners Managed Accounts and the sole member of Partners OS, may be deemed to beneficially own the 3,633,743 Shares beneficially owned in the aggregate by BVF, BVF2 and Trading Fund OS and held in the Partners Managed Accounts, representing percentage ownership of approximately 31.6% of the Shares outstanding.

BVF Inc., as the general partner of Partners, may be deemed to beneficially own the 3,633,743 Shares beneficially owned by Partners, representing percentage ownership of approximately 31.6% of the Shares outstanding.

Mr. Lampert, as a director and officer of BVF Inc. may be deemed to beneficially own the 3,633,743 Shares beneficially owned by BVF Inc., representing percentage ownership of approximately 31.6% of the Shares outstanding.

(b)       Each of BVF, BVF2 and Trading Fund OS shares with Partners voting and dispositive power over the Shares each such entity beneficially owns. BVF shares with BVF GP voting and dispositive power over the Shares beneficially owned by BVF. BVF2 shares with BVF2 GP voting and dispositive power over the Shares beneficially owned by BVF2. Each of BVF GP and BVF2 GP shares with BVF GPH voting and dispositive power over the Shares each such entity beneficially owns. Trading Fund OS shares with Partners OS voting and dispositive power over the Shares beneficially owned by Trading Fund OS. Partners, BVF Inc. and Mr. Lampert share voting and dispositive power over the Shares they may be deemed to beneficially own with BVF, BVF GP, BVF2, BVF2 GP, Trading Fund OS, Partners OS, BVF GPH and held in the Partners Managed Accounts.

(c)       The Reporting Persons have not entered into any transactions in the securities of the Issuer during the past sixty days.

The filing of this Schedule 13D shall not be deemed an admission that the Reporting Persons are, for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, the beneficial owners of any securities of the Issuer that he or it does not directly own. Each of the Reporting Persons specifically disclaims beneficial ownership of the securities reported herein that he or it does not directly own.

Item 6.

Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.

Item 6 is hereby amended to add the following:

On January 16, 2024, the Reporting Persons entered into a Joint Filing Agreement in which the Reporting Persons agreed to the joint filing on behalf of each of them of statements on Schedule 13D with respect to the securities of the Issuer to the extent required by applicable law. The Joint Filing Agreement is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Item 7.

Material to be Filed as Exhibits.

Item 7 is hereby amended to add the following Exhibit:

99.1

Joint Filing Agreement, by and among Biotechnology Value Fund, L.P., Biotechnology Value Fund II, L.P., Biotechnology Value Trading Fund OS, L.P., BVF Partners OS Ltd., BVF GP Holdings LLC, BVF Partners L.P., BVF Inc. and Mark N. Lampert, dated January 16, 2024.

SIGNATURES

After reasonable inquiry and to the best of his or its knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

Dated: January 16, 2024

BIOTECHNOLOGY VALUE FUND, L.P.			BIOTECHNOLOGY VALUE TRADING FUND OS LP
By:	BVF I GP LLC, its general partner		By:	BVF Partners L.P., its investment manager
			By:	BVF Inc., its general partner
By:	/s/ Mark N. Lampert
	Mark N. Lampert		By:	/s/ Mark N. Lampert
	Chief Executive Officer			Mark N. Lampert
				President
BVF I GP LLC
			BVF GP HOLDINGS LLC
By:	/s/ Mark N. Lampert
	Mark N. Lampert		By:	/s/ Mark N. Lampert
	Chief Executive Officer			Mark N. Lampert
				Chief Executive Officer
BIOTECHNOLOGY VALUE FUND II, L.P.
			BVF PARTNERS L.P.
By:	BVF II GP LLC, its general partner
			By:	BVF Inc., its general partner
By:	/s/ Mark N. Lampert
	Mark N. Lampert		By:	/s/ Mark N. Lampert
	Chief Executive Officer			Mark N. Lampert
				President
BVF II GP LLC
			BVF INC.
By:	/s/ Mark N. Lampert
	Mark N. Lampert		By:	/s/ Mark N. Lampert
	Chief Executive Officer			Mark N. Lampert
				President
BVF PARTNERS OS LTD.
			/s/ Mark N. Lampert
By:	BVF Partners L.P., its sole member		MARK N. LAMPERT
By:	BVF Inc., its general partner
By:	/s/ Mark N. Lampert
	Mark N. Lampert
	President