CASSAVA SCIENCES INC — Major Shareholding Notification 2010

Feb 4, 2010

SC 13G 1 pain13g-020410.htm FEBRUARY 4, 2010 pain13g-020410.htm Licensed to: Kleinberg, Kaplan, Wolff & Cohen, P.C. Document Created using EDGARizer 5.1.5.0 Copyright 1995 - 2009 Thomson Reuters. All rights reserved.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 13G

(RULE 13d - 102)

Information to be included in statements filed pursuant

to Rules 13d-1(b), (c) and (d) and amendments thereto filed

pursuant to 13d-2(b)

(AMENDMENT NO. )*

Pain Therapeutics, Inc.

(Name of Issuer)

Common Stock, par value $0.001

(Title of Class of Securities)

69562K100

(CUSIP Number)

January 25, 2010

(Date of Event which Requires Filing of this Statement)

Check the appropriate box to designate the rule

pursuant to which this Schedule is filed:

[ ] Rule 13d-1(b)

[x] Rule 13d-1(c)

[ ] Rule 13d-1(d)

*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).

(Continued on the Following Pages)

1. NAME OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Burlingame Equity Investors, LP

1. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)[x]

(b)[ ]

1. SEC USE ONLY

2. CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH

REPORTING PERSON WITH

1. SOLE VOTING POWER

0

1. SHARED VOTING POWER

1,112,905

1. SOLE DISPOSITIVE POWER

0

1. SHARED DISPOSITIVE POWER

1,112,905

1. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH

REPORTING PERSON

1,112,905

1. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)

EXCLUDES CERTAIN SHARES* [ ]

1. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

2.6%

1. TYPE OF REPORTING PERSON*

PN

*SEE INSTRUCTIONS BEFORE FILLING OUT!

1. NAME OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Burlingame Equity Investors II, LP

1. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)[x]

(b)[ ]

1. SEC USE ONLY

2. CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH

REPORTING PERSON WITH

1. SOLE VOTING POWER

0

1. SHARED VOTING POWER

113,709

1. SOLE DISPOSITIVE POWER

0

1. SHARED DISPOSITIVE POWER

113,709

1. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH

REPORTING PERSON

113,709

1. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)

EXCLUDES CERTAIN SHARES* [ ]

1. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

0.3%

1. TYPE OF REPORTING PERSON*

PN

*SEE INSTRUCTIONS BEFORE FILLING OUT!

1. NAME OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Burlingame Special Opportunities III, LP

1. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)[x]

(b)[ ]

1. SEC USE ONLY

2. CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH

REPORTING PERSON WITH

1. SOLE VOTING POWER

0

1. SHARED VOTING POWER

772,310

1. SOLE DISPOSITIVE POWER

0

1. SHARED DISPOSITIVE POWER

772,310

1. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH

REPORTING PERSON

772,310

1. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)

EXCLUDES CERTAIN SHARES* [ ]

1. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

1.8%

1. TYPE OF REPORTING PERSON*

PN

*SEE INSTRUCTIONS BEFORE FILLING OUT!

1. NAME OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Burlingame Equity Investors (Offshore) Ltd.

1. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)[x]

(b)[ ]

1. SEC USE ONLY

2. CITIZENSHIP OR PLACE OF ORGANIZATION

Cayman Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH

REPORTING PERSON WITH

1. SOLE VOTING POWER

0

1. SHARED VOTING POWER

141,764

1. SOLE DISPOSITIVE POWER

0

1. SHARED DISPOSITIVE POWER

141,764

1. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH

REPORTING PERSON

141,764

1. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)

EXCLUDES CERTAIN SHARES* [ ]

1. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

0.3%

1. TYPE OF REPORTING PERSON*

CO

*SEE INSTRUCTIONS BEFORE FILLING OUT!

1. NAME OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Burlingame Asset Management, LLC

1. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)[x]

(b)[ ]

1. SEC USE ONLY

2. CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH

REPORTING PERSON WITH

1. SOLE VOTING POWER

0

1. SHARED VOTING POWER

2,140,688

1. SOLE DISPOSITIVE POWER

0

1. SHARED DISPOSITIVE POWER

2,140,688

1. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH

REPORTING PERSON

2,140,688

1. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)

EXCLUDES CERTAIN SHARES* [ ]

1. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

5.1%

1. TYPE OF REPORTING PERSON*

OO

*SEE INSTRUCTIONS BEFORE FILLING OUT!

1. NAME OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Blair E. Sanford

1. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)[x]

(b)[ ]

1. SEC USE ONLY

2. CITIZENSHIP OR PLACE OF ORGANIZATION

United States

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

1. SOLE VOTING POWER

0

1. SHARED VOTING POWER

2,140,688

1. SOLE DISPOSITIVE POWER

0

1. SHARED DISPOSITIVE POWER

2,140,688

1. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH

REPORTING PERSON

2,140,688

1. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)

EXCLUDES CERTAIN SHARES* [ ]

1. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

5.1%

1. TYPE OF REPORTING PERSON*

IN, HC

*SEE INSTRUCTIONS BEFORE FILLING OUT!

This Schedule 13G reflects the beneficial ownership of the Reporting Persons (as defined below) as of January 25, 2010.

ITEM 1(a). NAME OF ISSUER:

Pain Therapeutics, Inc. (the "Issuer")

ITEM 1(b). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:

2211 Bridgepointe Parkway, Suite 500

San Mateo, California 94404

ITEM 2(a). NAME OF PERSON FILING :

The names of the persons filing this statement on Schedule 13G are (collectively, the “Reporting Persons”):

• Burlingame Equity Investors, LP (“Onshore Fund”).

• Burlingame Equity Investors II, LP (“Onshore Fund II”).

• Burlingame Special Opportunities III, LP (the “BSO III Fund”).

• Burlingame Equity Investors (Offshore) Ltd. (“Offshore Fund”).

• Burlingame Asset Management, LLC (“BAM”).

• Blair E. Sanford (“Mr. Sanford”).

BAM is the general partner of each of the Onshore Fund, Onshore Fund II and BSO III Fund, and the investment manager of the Offshore Fund. Mr. Sanford is the managing member of BAM. BAM and Mr. Sanford may each be deemed to have voting and dispositive power with respect to the shares of Common Stock (as defined below) held by the Onshore Fund, Onshore Fund II, BSO III Fund and the Offshore Fund.

ITEM 2(b). ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE:

The business address of each of the Onshore Fund, Onshore Fund II, BSO III Fund, BAM and Mr. Sanford is One Market Street, Spear Street Tower, Suite 3750, San Francisco, California 94105.

The business address of the Offshore Fund is c/o Appleby Trust (Cayman) Ltd., Clifton House, 75 Fort Street, P.O. Box 1350 GT, George Town, Grand Cayman, Cayman Islands.

ITEM 2(c). CITIZENSHIP:

Mr. Sanford is a citizen of the United States.

BAM is a limited liability company formed under the laws of the State of Delaware.

Each of the Onshore Fund, Onshore Fund II and BSO III Fund is a limited partnership formed under the laws of the State of Delaware.

The Offshore Fund is a company formed under the laws of the Cayman Islands.

ITEM 2(d). TITLE OF CLASS OF SECURITIES:

Common Stock, $0.001 par value per share (the “Common Stock”)

ITEM 2(e). CUSIP NUMBER:

69562K100

ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO RULE 13d-1(b), OR

13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:

(a) [ ] Broker or dealer registered under Section 15 of the Exchange Act.

(b) [ ] Bank as defined in Section 3(a)(6) of the Exchange Act.

(c) [ ] Insurance company defined in Section 3(a)(19) of the

Exchange Act.

(d) [ ] Investment company registered under Section 8 of the

Investment Company Act.

(e) [ ] An investment adviser in accordance with Rule

13d-1(b)(1)(ii)(E).

(f) [ ] An employee benefit plan or endowment fund in accordance

with Rule 13d-1(b)(1)(ii)(F).

(g) [ ] A parent holding company or control person in accordance

with Rule 13d-1(b)(1)(ii)(G).

(h) [ ] A savings association as defined in Section 3(b) of the

Federal Deposit Insurance Act.

(i) [ ] A church plan that is excluded from the definition of an

investment company under Section 3(c)(14) of the

Investment Company Act;

(j) [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

If this statement is filed pursuant to Rule 13d-1(c), check this box [x]

ITEM 4. OWNERSHIP.

Provide the following information regarding the aggregate number and

percentage of the class of securities of the issuer identified in Item 1.

(a) Amount beneficially owned:

(i) The Onshore Fund individually beneficially owns 1,112,905 shares of Common Stock.

(ii) The Onshore Fund II individually beneficially owns 113,709 shares of Common Stock.

(iii) The BSO III Fund individually beneficially owns 772,310 shares of Common Stock.

(iv) The Offshore Fund individually beneficially owns 141,764 shares of Common Stock.

(v) BAM, as the general partner of the Onshore Fund, Onshore Fund II and BSO III Fund, and the investment manager of the Offshore Fund, may be deemed to beneficially own the 2,140,688 shares of Common Stock held by them.

(vi) Mr. Sanford may be deemed to be the beneficial owner of the 2,140,688 shares of Common Stock beneficially owned by BAM.

(vii) Collectively, the Reporting Persons beneficially own 2,140,688 shares of Common Stock.

(b) Percent of Class:

(i) The Onshore Fund’s ownership of 1,112,905 shares of Common Stock represents 2.6% of all of the outstanding shares of Common Stock.

(ii) The Onshore Fund II’s beneficial ownership of 113,709 shares of Common Stock represents 0.3% of all of the outstanding shares of Common Stock.

(iii) The BSO III Fund’s beneficial ownership of 772,310 shares of Common Stock represents 1.8% of all of the outstanding shares of Common Stock.

(iv) The Offshore Fund’s beneficial ownership of 141,764 shares of Common Stock represents 0.3% of all of the outstanding shares of Common Stock.

(v) BAM’s and Mr. Sanford’s beneficial ownership of 2,140,688 shares of Common Stock represents 5.1% of all of the outstanding shares of Common Stock.

(vi) Collectively, the Reporting Persons’ beneficial ownership of 2,140,688 shares of Common Stock represents 5.1% of all of the outstanding shares of Common Stock.

(c) Number of shares as to which such person has:

(i) Sole power to vote or to direct the vote

Not applicable.

(ii) Shared power to vote or to direct the vote of shares of Common Stock:

The Onshore Fund, BAM and Mr. Sanford have shared power to vote or direct the vote of the 1,112,905 shares of Common Stock held by the Onshore Fund.

The Onshore Fund II, BAM and Mr. Sanford have shared power to vote or direct the vote of the 113,709 shares of Common Stock held by the Onshore Fund II.

The BSO III Fund, BAM and Mr. Sanford have shared power to vote or direct the vote of the 772,310 shares of Common Stock held by the BSO III Fund.

The Offshore Fund, BAM and Mr. Sanford have shared power to vote or direct the vote of the 141,764 shares of Common Stock held by the Offshore Fund.

(iii) Sole power to dispose or to direct the disposition of shares of Common Stock:

Not applicable.

(iv) Shared power to dispose or to direct the disposition of shares of Common Stock:

The Onshore Fund, BAM and Mr. Sanford have shared power to dispose or direct the disposition of the 1,112,905 shares of Common Stock held by the Onshore Fund.

The Onshore Fund II, BAM and Mr. Sanford have shared power to dispose or direct the disposition of the 113,709 shares of Common Stock held by the Onshore Fund II.

The BSO III Fund, BAM and Mr. Sanford have shared power to dispose or direct the disposition of the 772,310 shares of Common Stock held by the BSO III Fund.

The Offshore Fund, BAM and Mr. Sanford have shared power to dispose or direct the disposition of the 141,764 shares of Common Stock held by the Offshore Fund.

ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.

If this statement is being filed to report the fact that as of the date hereof the Reporting Persons have ceased to be the beneficial owner of more than five percent of the class of securities, check the following [ ].

ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.

Not applicable.

ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH

ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING

COMPANY.

Not applicable.

ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.

See Exhibit B.

ITEM 9. NOTICE OF DISSOLUTION OF GROUP.

Not applicable.

ITEM 10. CERTIFICATION.

By signing below the undersigned certifies that, to the best of its or his knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

SIGNATURE

After reasonable inquiry and to the best of its knowledge and belief,

each of the undersigned certifies that the information set forth in this statement is true, complete, and correct.

Dated: February 4, 2010

BURLINGAME EQUITY INVESTORS, LP

By: Burlingame Asset Management, LLC, as General Partner

By: /s/ Blair E. Sanford

Blair E. Sanford, Managing Member

BURLINGAME EQUITY INVESTORS II, LP

By: Burlingame Asset Management, LLC, as General Partner

By: /s/ Blair E. Sanford

Blair E. Sanford, Managing Member

BURLINGAME SPECIAL OPPORTUNITIES III, LP

By: Burlingame Asset Management, LLC, as General Partner

By: /s/ Blair E. Sanford

Blair E. Sanford, Managing Member

BURLINGAME EQUITY INVESTORS (OFFSHORE) LTD.

By: /s/ Blair E. Sanford

Blair E. Sanford, Director

BURLINGAME ASSET MANAGEMENT, LLC

By: /s/ Blair E. Sanford

Blair E. Sanford, Managing Member

/s/ Blair E. Sanford

Blair E. Sanford

EXHIBIT A

JOINT FILING AGREEMENT

The undersigned hereby agree that the statement on Schedule 13G with respect to the Common Stock of Pain Therapeutics, Inc. dated as of February 4, 2010 is, and any further amendments thereto signed by each of the undersigned shall be, filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.

Dated: February 4, 2010

BURLINGAME EQUITY INVESTORS, LP

By: Burlingame Asset Management, LLC, as General Partner

By: /s/ Blair E. Sanford

Blair E. Sanford, Managing Member

BURLINGAME EQUITY INVESTORS II, LP

By: Burlingame Asset Management, LLC, as General Partner

By: /s/ Blair E. Sanford

Blair E. Sanford, Managing Member

BURLINGAME SPECIAL OPPORTUNITIES III, LP

By: Burlingame Asset Management, LLC, as General Partner

By: /s/ Blair E. Sanford

Blair E. Sanford, Managing Member

BURLINGAME EQUITY INVESTORS (OFFSHORE) LTD.

By: /s/ Blair E. Sanford

Blair E. Sanford, Director

BURLINGAME ASSET MANAGEMENT, LLC

By: /s/ Blair E. Sanford

Blair E. Sanford, Managing Member

/s/ Blair E. Sanford

Blair E. Sanford

EXHIBIT B

Burlingame Equity Investors, LP

Burlingame Equity Investors II, LP

Burlingame Special Opportunities III, LP

Burlingame Equity Investors (Offshore) Ltd.

Burlingame Asset Management, LLC

Blair E. Sanford