Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Petrus Trust Company, LTA
2. Date of Event Requiring Statement (Month/Day/Year)
09/20/2009
3. Issuer Name and Ticker or Trading Symbol
PEROT SYSTEMS CORP [PER]
(Last)
(First)
(Middle)
2300 WEST PLANO PARKWAY
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
Member-10% Owner Group(1-4)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

PLANO, TX 75075
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 Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
No securities are beneficially owned (1) (2) (3) (4) 0
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Petrus Trust Company, LTA
2300 WEST PLANO PARKWAY
PLANO, TX 75075
      Member-10% Owner Group(1-4)

Signatures

Petrus Trust Company, LTA, By: /s/ J. Y. Robb III, Name: J. Y. Robb III, President 09/30/2009
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) The reporting person is trustee or co-trustee for certain trusts that may be deemed to be, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Act"), or otherwise, the beneficial owner of certain securities of the Issuer, including: (i) 2,050,000 shares owned by Perot Family Trust; (ii) 27,360 shares owned by Perot Investment Trust I; (iii) 27,360 shares owned by Perot Investment Trust II; (iv) 27,360 shares owned by Perot Investment Trust III; (v) 27,360 shares owned by Perot Investment Trust IV; and (vi) 27,360 shares owned by Perot Investment Trust V.
(2) The reporting person, as trustee or co-trustee, may be deemed to beneficially own securities beneficially owned by Perot Family Trust, Perot Investment Trust I, Perot Investment Trust II, Perot Investment Trust III, Perot Investment Trust IV and Perot Investment Trust V. The reporting person disclaims beneficial ownership of the securities owned by the trusts described above, except to the extent of the pecuniary interest of such person in such securities.
(3) Each of Perot Family Trust, Perot Investment Trust I, Perot Investment Trust II, Perot Investment Trust III, Perot Investment Trust IV and Perot Investment Trust V may be deemed to be a member of a group for the purposes of Section 13(d) or 13(g) of the Act with six other stockholders of Issuer, as described in a Schedule 13D filed with the Securities and Exchange Commission on September 30, 2009.
(4) Each member of the group, including Perot Family Trust, Perot Investment Trust I, Perot Investment Trust II, Perot Investment Trust III, Perot Investment Trust IV and Perot Investment Trust V, entered into a Tender and Voting Agreement with the Issuer, Dell Inc. and DII - Holdings Inc. in connection with those certain tender offer and merger transactions proposed to be entered into between the Issuer, Dell Inc. and DII - Holdings Inc., whereby each member of the group agreed to tender its shares in Issuer and to vote or take such other necessary actions in support of the tender offer and merger. The reporting person and each member of the group declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) or 13(g) of the Act or any other purpose, a member of a group with respect to the Issuer or securities of the Issuer.

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