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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
LAPENTA ROBERT V
  2. Issuer Name and Ticker or Trading Symbol
L 3 COMMUNICATIONS HOLDINGS INC [LLL]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President and CFO
(Last)
(First)
(Middle)
C/O L-3 COMMUNICATIONS CORPORATION, 600 THIRD AVENUE
3. Date of Earliest Transaction (Month/Day/Year)
06/26/2000
(Street)

NEW YORK, NY 10016
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
Common Stock 06/26/2000   M   200,000 A $ 3.235 1,800,571 D  

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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
3/25/02 Stock Options $ 53.745 03/25/2002(1)   A   400,000     (2) 03/25/2012 Common Stock 400,000 $ 0 400,000 D  
11/14/03 Stock Options $ 45.8 11/14/2003   A   75,000     (3) 11/14/2013 Common Stock 75,000 $ 0 75,000 D  
4/30/97 Stock Options $ 3.235 06/26/2000   M   200,000     (4) 04/30/2007 Common Stock 200,000 $ 0 1,628,032 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
LAPENTA ROBERT V
C/O L-3 COMMUNICATIONS CORPORATION
600 THIRD AVENUE
NEW YORK, NY 10016
  X     President and CFO  

Signatures

 /s/ Christopher C. Cambria, Authorized Signatory   08/09/2006
**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) Grant date of stock option from which the vesting dates and expiration date are determined. While this date may not be the date on which the grant was effectively approved by the Compensation Committee or Board of Directors, the grant will nevertheless be exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended (the "Act"), pursuant to Rule 16b-3(d)(3) promulgated under the Act because no sales of the options or the underlying shares occurred within less than six months of approval of the grant.
(2) One-third of the shares underlying this option grant became exercisable on each of March 25, 2003, 2004 and 2005.
(3) One-third of the shares underlying this option grant became exercisable on November 14, 2004. The remaining shares were cancelled upon Mr. LaPenta's resignation effective April 1, 2005.
(4) 457,143 of the shares underlying this option grant became exercisable on each of March 2, 1998 and April 30, 1999. An additional 914,286 shares became exercisable on April 30, 2000, and a further 228,571 shares became exercisable on each of April 30, 2001 and 2002.
 
Remarks:
All prices and quantities have been adjusted to reflect the Company's 2-for-1 stock split on May 20, 2002.

Mr. LaPenta resigned his posts as president, CFO and director at L-3 Communications effective April 1, 2005.

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