UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934(1)
ZIOPHARM ONCOLOGY, INC.
(Name of Issuer)
COMMON STOCK, $.001 PAR VALUE
(Title of Class of Securities)
98973P101
(CUSIP Number)
MAY 3, 2006
(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)
------------------
(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 the disclosures provided in a prior cover page.
The information required in 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 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).
CUSIP No. 98973P101 13G Page 2 of 10 Pages
--------- ----------------------------------------------------------------------
1. NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
ProQuest Investments III, L.P. 20-0992411
--------- ----------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** (a) | |
(b) |X|
--------- ----------------------------------------------------------------------
3. SEC USE ONLY
--------- ----------------------------------------------------------------------
4. CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
--------------------------- ----------------------------------------------------
5. SOLE VOTING POWER
NUMBER OF
-0-
SHARES --------- ----------------------------------------------------
6. SHARED VOTING POWER
BENEFICIALLY
1,403,888
OWNED BY --------- ----------------------------------------------------
7. SOLE DISPOSITIVE POWER
EACH
-0-
REPORTING --------- ----------------------------------------------------
8. SHARED DISPOSITIVE POWER
PERSON WITH
1,403,888
--------- ----------------------------------------------------------------------
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,403,888
--------- ----------------------------------------------------------------------
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES
CERTAIN SHARES** |_|
--------- ----------------------------------------------------------------------
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
9.01%
--------- ----------------------------------------------------------------------
12. TYPE OF REPORTING PERSON**
PN
--------- ----------------------------------------------------------------------
** SEE INSTRUCTIONS BEFORE FILLING OUT
CUSIP No. 98973P101 13G Page 3 of 10 Pages
--------- ----------------------------------------------------------------------
1. NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
ProQuest Associates III LLC 20-0992451
--------- ----------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** (a) | |
(b) |X|
--------- ----------------------------------------------------------------------
3. SEC USE ONLY
--------- ----------------------------------------------------------------------
4. CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
--------------------------- ----------------------------------------------------
5. SOLE VOTING POWER
NUMBER OF
-0-
SHARES --------- ----------------------------------------------------
6. SHARED VOTING POWER
BENEFICIALLY
1,403,888
OWNED BY --------- ----------------------------------------------------
7. SOLE DISPOSITIVE POWER
EACH
-0-
REPORTING --------- ----------------------------------------------------
8. SHARED DISPOSITIVE POWER
PERSON WITH
1,403,888
--------- ----------------------------------------------------------------------
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,403,888
--------- ----------------------------------------------------------------------
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES
CERTAIN SHARES** |_|
--------- ----------------------------------------------------------------------
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
9.01%
--------- ----------------------------------------------------------------------
12. TYPE OF REPORTING PERSON**
OO
--------- ----------------------------------------------------------------------
** SEE INSTRUCTIONS BEFORE FILLING OUT
CUSIP No. 98973P101 13G Page 4 of 10 Pages
--------- ----------------------------------------------------------------------
1. NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
Jay Moorin
--------- ----------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** (a) | |
(b) |X|
--------- ----------------------------------------------------------------------
3. SEC USE ONLY
--------- ----------------------------------------------------------------------
4. CITIZENSHIP OR PLACE OF ORGANIZATION
United States
--------------------------- ----------------------------------------------------
5. SOLE VOTING POWER
NUMBER OF
-0-
SHARES --------- ----------------------------------------------------
6. SHARED VOTING POWER
BENEFICIALLY
1,403,888
OWNED BY --------- ----------------------------------------------------
7. SOLE DISPOSITIVE POWER
EACH
-0-
REPORTING --------- ----------------------------------------------------
8. SHARED DISPOSITIVE POWER
PERSON WITH
1,403,888
--------- ----------------------------------------------------------------------
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,403,888
--------- ----------------------------------------------------------------------
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES
CERTAIN SHARES** |_|
--------- ----------------------------------------------------------------------
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
9.01%
--------- ----------------------------------------------------------------------
12. TYPE OF REPORTING PERSON**
IN
--------- ----------------------------------------------------------------------
** SEE INSTRUCTIONS BEFORE FILLING OUT
CUSIP No. 98973P101 13G Page 5 of 10 Pages
--------- ----------------------------------------------------------------------
1. NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
Alain Schreiber
--------- ----------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP** (a) | |
(b) |X|
--------- ----------------------------------------------------------------------
3. SEC USE ONLY
--------- ----------------------------------------------------------------------
4. CITIZENSHIP OR PLACE OF ORGANIZATION
United States Resident Alien
--------------------------- ----------------------------------------------------
5. SOLE VOTING POWER
NUMBER OF
-0-
SHARES --------- ----------------------------------------------------
6. SHARED VOTING POWER
BENEFICIALLY
1,403,888
OWNED BY --------- ----------------------------------------------------
7. SOLE DISPOSITIVE POWER
EACH
-0-
REPORTING --------- ----------------------------------------------------
8. SHARED DISPOSITIVE POWER
PERSON WITH
1,403,888
--------- ----------------------------------------------------------------------
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,403,888
--------- ----------------------------------------------------------------------
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES
CERTAIN SHARES** |_|
--------- ----------------------------------------------------------------------
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
9.01%
--------- ----------------------------------------------------------------------
12. TYPE OF REPORTING PERSON**
IN
--------- ----------------------------------------------------------------------
** SEE INSTRUCTIONS BEFORE FILLING OUT
CUSIP No. 98973P101 13G Page 6 of 10 Pages
ITEM 1(A). NAME OF ISSUER.
ZIOPHARM Oncology, Inc. (the "Company").
ITEM 1(B). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES.
The Company's principal executive offices are located at 1180 Avenue of
the Americas, 19th Floor, New York, NY 10036.
ITEMS 2(A). NAME OF PERSON FILING.
This statement is filed on behalf of the following persons with respect
to shares of common stock of the Company and stock warrants to purchase shares
of common stock of the Company purchased by such persons (collectively, the
"Shares") in connection with a private placement of the Company's securities:
(i) ProQuest Investments III, L.P., a Delaware limited partnership
("Investments III"), with respect to Shares beneficially owned by it;
(ii) ProQuest Associates III LLC, a Delaware limited liability company
("Associates III"), as General Partner of Investments III, with respect to
Shares beneficially owned by Investments III;
(iii) Jay Moorin, an individual and a member of Associates III
("Moorin"), with respect to Shares beneficially owned by Investments III; and
(iv) Alain Schreiber, an individual and a member of Associates III
("Schreiber"), with respect to Shares beneficially owned by Investments III.
The foregoing persons are hereinafter are referred to collectively as
the "Reporting Persons." Any disclosures herein with respect to persons other
than the Reporting Persons are made on information and belief after making
inquiry to the appropriate party.
ITEM 2(B). ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE.
The address of the principal business office of each of the Reporting
Persons is 90 Nassau Street, 5th Floor, Princeton, NJ 08542.
ITEM 2(C). CITIZENSHIP.
Mr. Moorin is a United States citizen. Mr. Schreiber is a United States
resident alien. Investments III is a Delaware limited partnership organized
under the laws of the State of Delaware. Associates III is a Delaware limited
liability company organized under the laws of the State of Delaware.
ITEM 2(D). TITLE OF CLASS OF SECURITIES.
Common stock, par value $0.001 per share.
CUSIP No. 98973P101 13G Page 7 of 10 Pages
ITEM 2(E). CUSIP NUMBER.
98973P101
ITEM 3.
If this statement is filed pursuant to Rules 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 Act,
(b) |_| Bank as defined in Section 3(a)(6) of the Act,
(c) |_| Insurance Company as defined in Section 3(a)(19) of the
Act,
(d) |_| Investment Company registered under Section 8 of the
Investment Company Act of 1940,
(e) |_| Investment Adviser in accordance with Rule 13d-1
(b)(1)(ii)(E),
(f) |_| Employee Benefit Plan or Endowment Fund in accordance with
13d-1 (b)(1)(ii)(F),
(g) |_| Parent Holding Company or control person in accordance
with Rule 13d-1 (b)(1)(ii)(G),
(h) |_| Savings Association as defined in Section 3(b) of the
Federal Deposit Insurance Act,
(i) |_| Church Plan that is excluded from the definition of an
investment company under Section 3(c)(14) of the
Investment Company Act of 1940,
(j) |_| Group, in accordance with Rule 13d-1(b)(1)(ii)(J).
If this statement is filed pursuant to 13d-1(c), check this box: |X|
ITEM 4. OWNERSHIP.
The percentages used herein are calculated based upon 15,264,248 shares
issued and outstanding, as of May 3, 2006, based upon the Company's Current
Report on Form 8-K dated May 3, 2006. As of the close of business on May 3,
2006, the Reporting Persons beneficially owned shares of the Company's common
stock in the amounts and percentages listed below:
A. PROQUEST INVESTMENTS III, L.P.
(a) Amount beneficially owned: 1,403,888
(b) Percent of class: 9.01%
CUSIP No. 98973P101 13G Page 8 of 10 Pages
(c) (i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote: 1,403,888
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition:
1,403,888
B. PROQUEST ASSOCIATES III LLC
(a) Amount beneficially owned: 1,403,888
(b) Percent of class: 9.01%
(c) (i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote: 1,403,888
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition:
1,403,888
C. JAY MOORIN
(a) Amount beneficially owned: 1,403,888
(b) Percent of class: 9.01%
(c) (i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote: 1,403,888
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition:
1,403,888
D. ALAIN SCHREIBER
(a) Amount beneficially owned: 1,403,888
(b) Percent of class: 9.01%
(c) (i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote: 1,403,888
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition:
1,403,888
CUSIP No. 98973P101 13G Page 9 of 10 Pages
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 person has 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.
To the knowledge of the Reporting Persons, no other person has the
right to receive or the power to direct the receipt of dividends from, or the
proceeds from the sale of, a number of the Shares which represents more than
five percent of the number of outstanding shares of the Shares.
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.
Not Applicable.
ITEM 9. NOTICE OF DISSOLUTION OF GROUP.
Not Applicable.
ITEM 10. CERTIFICATIONS.
Each of the Reporting Persons hereby makes the following certification:
By signing below I certify that, to the best of my 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.
CUSIP No. 98973P101 13G Page 10 of 10 Pages
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.
DATED: May 10, 2006
/s/ Pasquale DeAngelis
----------------------------------------
Pasquale DeAngelis, as a member of
ProQuest Associates III LLC and on
behalf of ProQuest Investments III, L.P.
*
----------------------------------------
Jay Moorin, individually
*
----------------------------------------
Alain Schreiber, individually
*By: /s/ Pasquale DeAngelis
--------------------------------------------
Pasquale DeAngelis, Attorney-in-Fact
Power of attorney filed as an exhibit hereto
Index Exhibit
SCHEDULE 13G
EXHIBIT NUMBER EXHIBIT DESCRIPTION
-------------- -------------------
99.1 Joint Filing Agreement
99.2 Power of Attorney