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 *
KOEPFGEN BRUCE L
  2. Issuer Name and Ticker or Trading Symbol
MGIC INVESTMENT CORP [MTG]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
MGIC PLAZA, 250 EAST KILBOURN AVENUE
3. Date of Earliest Transaction (Month/Day/Year)
10/21/2010
(Street)

MILWAUKEE, WI 53202
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

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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
Share Units (1) (2) 10/21/2010   A   3,527.6382     (3)   (4) Common Stock 3,527.6382 $ 0 (5) 3,527.6382 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
KOEPFGEN BRUCE L
MGIC PLAZA
250 EAST KILBOURN AVENUE
MILWAUKEE, WI 53202
  X      

Signatures

 Dan D. Stilwell   10/21/2010
**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) The reporting person participates in the MGIC Investment Corporation Deferred Compensation Plan for Non-Employee Directors under which units corresponding to shares of Common Stock of the Issuer ("Share Units") are awarded to the reporting person. The Share Units are settled in cash, generally at the time the reporting person ceases to be a Director of the Issuer, unless a qualified election for earlier distribution is made by the reporting person.
(2) These Share Units do not have a specified dollar-denominated exercise or conversion price. (Their value is based, on a one-for-one basis, on the price of the Issuer's common stock on the New York Stock Exchange.)
(3) These Share Units are subject to certain restrictions and vest when such restrictions lapse. The restictions generally lapse on April 1, 2011.
(4) These Share Units do not expire on a fixed date. Under certain circumstances, the Share Units are subject to forfeiture if the reporting person ceases to be a Director of the Issuer before the lapse of restrictions on the Share Units.
(5) These Share Units were awarded to the reporting person pursuant to the Issuer's 2002 Stock Incentive Plan and no price was paid by the reporting person for the shares.
 
Remarks:
This Form 4 is being signed and filed on behalf of the reporting person by the reporting person's attorney-in-fact pursuant to a previously filed power of attorney.

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

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