Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
AMAITIS LEE M
  2. Issuer Name and Ticker or Trading Symbol
ESPEED INC [BGCP]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Co-Chief Executive Officer
(Last)
(First)
(Middle)
C/O BGC PARNTERS, INC., 499 PARK AVE.
3. Date of Earliest Transaction (Month/Day/Year)
04/01/2008
(Street)

NEW YORK, NY 10022
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Class A Common Stock, par value $0.01 per share 04/01/2008   A(1)   412,043 (1) A (1) 515,555 (1) D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
BGC Holdings Exchangeable Founding Partner Interests (2) (3) (4) 04/01/2008   A(2)(3)(4)   3,160,215 (2) (3) (4)     (2)(3)(4)   (2)(3)(4) Class A Common Stock, par value $0.01 per share 3,160,215 (2) (3) (4) (2) (3) (4) 3,160,215 (2) (3) (4) D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
AMAITIS LEE M
C/O BGC PARNTERS, INC.
499 PARK AVE.
NEW YORK, NY 10022
  X     Co-Chief Executive Officer  

Signatures

 /s/ Lee M. Amaitis   04/03/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Deferred stock distributions of shares of Class A Common Stock receivable by the reporting person from Cantor Fitzgerald, L.P. ("CFLP") in respect of his CFLP limited partnership units in connection with the Separation and Merger (as such terms are defined below). One-third of such shares are receivable on each of the first, second and third anniversaries of the completion of the Merger. Prior to the Merger, CFLP separated (the "Separation") its inter-dealer brokerage business, market data business and fulfillment businesses (collectively, the "BGC Businesses") from the remainder of CFLP's businesses and contributed the BGC Businesses to BGC Partners, LLC, which then merged (the "Merger") with and into eSpeed, Inc., which was renamed BGC Partners, Inc. The Merger was completed on April 1, 2008.
(2) In connection with the Separation and Merger, the reporting person received from CFLP in respect of his CFLP limited partnership units 3,160,215 BGC Holdings, L.P. ("BGC Holdings") Exchangeable Founding Partner Interests (the "Aggregate Interests"), which are exchangeable into shares of Class A Common Stock on a one-for-one basis (subject to adjustment), on the following schedule: the exchange rights with respect to (i) 1,100,000 of the Aggregate Interests became exercisable on the completion of the Merger, (ii) 40% of the Aggregate Interests (less the 1,100,000 referred to in clause (i) and any other interests or shares of Class A Common Stock that the reporting person is otherwise eligible to exchange or sell or has sold for any reason, including, without limitation, in connection with any grant of additional interests or stock options (collectively, the "Applicable Shares")) will become exercisable on the second anniversary of the completion of the Merger, (Continued footnote 3)
(3) (iii) 60% of the Aggregate Interests (less the Applicable Shares) will become exercisable on the third anniversary of the completion of the Merger, (iv) 80% of the Aggregate Interests (less the Applicable Shares) will become exercisable on the fourth anniversary of the completion of the Merger, and (v) 100% of the Aggregate Interests (less the Applicable Shares) will become exercisable on the fifth anniversary of the completion of the Merger. Once they become exercisable, the Exchangeable Founding Partner Interests are exercisable at any time and are automatically exercised upon redemption of such Exchangeable Founding Partner Interests for any reason. (Contiuned footnote 4)
(4) In the case of the death of the reporting person, Exchangeable Founding Partner Interests which are then not exercisable are automatically exercised and the shares are distributed on the same schedule as if the reporting person had not died and had exchanged the maximum amount possible on each anniversary of the completion of the Merger.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.