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 *
Petrus Management Corp
  2. Issuer Name and Ticker or Trading Symbol
PEROT SYSTEMS CORP [PER]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
See remarks
(Last)
(First)
(Middle)
2300 WEST PLANO PARKWAY
3. Date of Earliest Transaction (Month/Day/Year)
11/03/2009
(Street)

PLANO, TX 75075-8499
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 (1) (2) (3) (4) (5) 11/03/2009   U   4,000 (1) (2) (3) (4) (5) D $ 30 0 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Petrus Management Corp
2300 WEST PLANO PARKWAY
PLANO, TX 75075-8499
      See remarks

Signatures

 /s/ J. Y. Robb, III, President   11/05/2009
**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) Includes 4,000 shares owned by Petrus Financial Services, Ltd., for whom the reporting person is the general partner with investment and voting control. The reporting person may be deemed to beneficially own the shares owned by Petrus Financial Services, Ltd. Additionally, Petrus Financial Services, Ltd. may be deemed to be a member of a group for the purposes of Section 13(d) or 13(g) of the Act, with eleven other stockholders of the Issuer, as described in a Schedule 13D filed with the Securities and Exchange Commission on September 30, 2009.
(2) Each member of the group, including Petrus Financial Services, Ltd., 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, except for Perot Family Trust, which may elect not to tender its shares in Issuer in the tender offer and to hold its shares and receive the same consideration per share in connection with the merger described in the merger agreement pursuant to its Amended and Restated Tender and Voting Agreement, and to vote or take such other necessary actions in support of the tender offer and merger.
(3) 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. The reporting person disclaims beneficial ownership of the securities owned by Petrus Financial Services, Ltd., except to the extent of the pecuniary interest of such person in such securities.
(4) As a result of the dispositions reported in this Form 4 and the concurrent dispositions of additional members of the group in connection with the tender offer, the members of the group will no longer be beneficial owners of more than 10% of the Issuer's securities and, therefore, should no longer be deemed to be a group for the purposes of Section 13(d) or 13(g) of the Act and to the extent that a member of the group was only an insider due to its status as a deemed member of a group that beneficially owned 10% or more of the Issuer's securities, such members of the group, including Petrus Financial Services, Ltd. will no longer be insiders under Section 16 of the Act.
(5) The reporting person states that neither the filing of this statement nor anything herein shall be deemed an admission that such person is, for purposes of Section 16 of the Act or otherwise, the beneficial owner of any securities covered by this statement. The reporting person disclaims beneficial ownership of the securities covered by this statement, except to the extent of the pecuniary interest of such person in such securities.
 
Remarks:
Member of 10% owner group (1)(2)(3)(4)(5)
Exhibit Index: None

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