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OMB
APPROVAL
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OMB
Number: 3235-0145
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UNITED
STATES
SECURITIES
AND EXCHANGE COMMISSION
Washington,
D.C. 20549
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Expires: February
28, 2009
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Estimated
average burden
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hours
per response............ 10.4
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SCHEDULE
13G
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Under
the Securities Exchange Act of 1934
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Catalyst
Pharmaceutical Partners, Inc.
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(Name
of Issuer)
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Common
Stock, par value $0.001 per share
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(Title
of Class of Securities)
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14888U101
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(CUSIP
Number)
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November
7, 2007
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(Date
of Event Which Requires Filing of this Statement)
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Check
the appropriate box to designate the rule pursuant to which this
Schedule
is filed:
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¨
Rule
13d-1(b)
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ý
Rule
13d-1(c)
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¨
Rule
13d-1(d)
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*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.
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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 (“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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Page
1 of 5 pages
CUSIP
No. 14888U101
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1.
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Names
of Reporting Persons.
I.R.S.
Identification Nos. of above persons (entities only).
Henderson
Global Investors Limited
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2.
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Check the Appropriate Box if a Member
of a Group (See
Instructions)
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(a)
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(b)
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3.
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SEC
Use Only
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4.
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Citizenship
or Place of Organization
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United Kingdom |
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Number
of
Shares
Bene-
ficially
Owned
by Each
Reporting
Person
With:
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5. Sole
Voting Power
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654,582
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6. Shared
Voting Power
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7. Sole
Dispositive Power
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654,582
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8. Shared
Dispositive Power
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9.
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Aggregate Amount Beneficially Owned by
Each Reporting
Person
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654,582
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10.
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Check if the Aggregate Amount in Row (9)
Excludes
Certain Shares (See Instructions)
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11.
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Percent of Class Represented by Amount
in Row
(9)
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5.2% |
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12.
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Type
of Reporting Person (See
Instructions)
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IA
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Page
2 of 5 pages
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Item
1.
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(a)
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Name
of Issuer Catalyst Pharmaceutical Partners,
Inc.
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(b)
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Address
of Issuer’s Principal Executive Offices 220
Miracle Mile, Suite 234, Coral Gables, Florida
33134
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Item
2.
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(a)
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Name
of Person Filing Henderson Global Investors
Limited
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(b)
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Address
of Principal Business Office or, if none, Residence 4
Broadgate, London EC2M 2DA, United
Kingdom
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(c)
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Citizenship United
Kingdom
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(d)
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Title
of Class of Securities Common Stock, par value $0.001
per share
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(e)
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CUSIP
Number 14888U101
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Item
3.
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If
this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c),
check whether the person filing is
a:
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(a)
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¨
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Broker
or dealer registered under section 15 of the Act (15 U.S.C.
78o).
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(b)
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¨
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Bank
as defined in section 3(a)(6) of the Act (15 U.S.C.
78c).
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(c)
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¨
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Insurance
company as defined in section 3(a)(19) of the Act (15 U.S.C.
78c).
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(d)
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¨
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Investment
company registered under section 8 of the Investment Company
Act of 1940
(15 U.S.C. 80a-8).
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(e)
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¨
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An
investment adviser in accordance with
§240.13d-1(b)(1)(ii)(E).
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(f)
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¨
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An
employee benefit plan or endowment fund in accordance with
§240.13d-1(b)(1)(ii)(F).
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(g)
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¨
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A
parent holding company or control person in accordance
with
§240.13d-1(b)(1)(ii)(G).
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(h)
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¨
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A
savings association as defined in Section 3(b) of the Federal
Deposit
Insurance Act (12 U.S.C. 1813).
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(i)
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¨
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A
church plan that is excluded from the definition of an
investment company
under section 3(c)(14) of the Investment Company Act
of 1940 (15 U.S.C.
80a-3).
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(j)
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¨
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Group,
in accordance with
§240.13d-1(b)(1)(ii)(J).
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Item
4.
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Ownership.
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The
information in Items 5 - 9 and 11 on the cover page of this Schedule
13G is
incorporated herein by reference.
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Item
5.
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Ownership
of Five Percent or Less of a
Class.
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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 ¨.
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Item
6.
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Ownership
of More than Five Percent on Behalf of Another
Person.
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The
reporting person is an investment adviser registered in the United
Kingdom and
has beneficial ownership of the shares which are the subject of
this filing
through the investment discretion the reporting person exercises
over its
clients’ accounts.
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Item
7.
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Identification
and Classification of the Subsidiary Which Acquired the
Security Being
Reported on By the Parent Holding
Company.
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Not
Applicable.
Page
3 of 5 pages
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Item
8.
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Identification
and Classification of Members of the
Group.
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Not
Applicable.
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Item
9.
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Notice
of Dissolution of Group.
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Not
Applicable.
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Item 10.
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Certification.
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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.
Page
4 of 5 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.
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November
14, 2007
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Date
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HENDERSON
GLOBAL INVESTORS LIMITED
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/s/
Philip Woolliscroft
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Signature
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Philip
Woolliscroft / Head of Asset Management
Compliance
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Name/Title
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