UNITED STATES
SECURITIES EXCHANGE COMMISSION
Washington, D.C.  20549

SCHEDULE 13G/A
Under the Securities Exchange Act of 1934
Amendment No. 1

IHOP Corp

(Name of Issuer)

Common Stock 

(Title of Class of Securities)

449623107

(CUSIP Number)

September 20, 2005

(Date of Event which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to
which this Schedule is filed:

[ X ]   Rule 13d-1(b)
[   ]   Rule 13d-1(c)
[    ]  Rule 13d-1(d)

CUSIP No.  449623107

1.Names of Reporting Persons.

Transamerica Investment Management, LLC

I.R.S. Identification Nos. of above persons (entities only).

06-1564377

2.Check the Appropriate Box if a Member of a Group 

(a) [  ]
(b) [ X ]

3.SEC Use Only 

4.Citizenship or Place of Organization 

Delaware, United States

Number of 
Shares 
Beneficially 
Owned by 
Each 
Reporting 
Person With

5.Sole Voting Power     950,916

6.Shared Voting Power   None

7.Sole Dispositive Power        950,916

8.Shared Dispositive Power      None

9.Aggregate Amount Beneficially Owned by Each Reporting Person  950,916

10.Check if the Aggregate Amount in Row (9) Excludes Certain Shares  [   ]

11.Percent of Class Represented by Amount in Row (9) 4.87%

12.Type of Reporting Person:  IA

Item 1(a).      Name of Issuer:

IHOP Corp

Item 1(b).      Address of Issuer's Principal Executive Offices:

450 N Brand Boulevard
Glendale, CA 91203 

Item 2(a).      Name of Person Filing
Item 2(b).      Address of Principal Business Office or, if None, Residence
Item 2(c).      Citizenship

Transamerica Investment Management, LLC
1150 South Olive Street, Suite 2700
Los Angeles, CA 90015
Delaware 

Item 2(d).      Title of Class of Securities:

Common Stock

Item 2(e).      CUSIP Number:

449623107

Item 3. If This Statement is Filed Pursuant to 240.13d-1(b) or 240.13d-2(b) 
or (c), Check Whether the Person Filing is a:

(a) - Broker or dealer registered under Section 15 of the Act.
(b) - Bank as defined in Section 3(a)(6) of the Act.
(c) - Insurance company as defined in Section 3(a)(19) of the Act.
(d) - Investment company registered under Section 8 of the Investment Company 
Act of 1940.
(e) X An investment adviser in accordance with 240.13d-1(b)(1)(ii)(E);
(f) - An employee benefit plan or endowment fund in accordance with 
240.13d-1(b)(1)(ii)(F);
(g) - A parent holding company or control person in accordance with 240.13d-    
1(b)(1)(ii)(G);
(h) - A savings association as defined in Section 3(b) of the Federal Deposit   
Insurance Act;
(i) - A church plan that is excluded from the definition of an investment               
company under Section 3(c)(14) of the Investment Company Act of 1940;
(j) - Group, in accordance with 240.13d-1(b)(1)(ii)(J).

Item 4.         Ownership:

a. Amount beneficially owned: 950,916

b. Percent of Class: 4.87%

c. Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote: 950,916

(ii) Shared power to vote or to direct the vote:None

(iii)Sole power to dispose or to direct the disposition of: 950,916

(iv) Shared power to dispose or to direct the disposition: None

Item 5. Ownership of Five Percent or Less of a Class: 

[ X ]

Item 6. Ownership of More than Five Percent on Behalf of Another Person:

Not applicable.

Item 7. Identification and Classification of the Subsidiary Which Acquired the 
Security Being Reported on By the Parent Holding Company of Control 
Person:

Not applicable.

Item 8. Identification and Classification of Members of the Group:

Not applicable.

Item 9. Notice of Dissolution of Group:

Not applicable.

Item 10.Certification:

By signing below I certify that, to the best of my knowledge and belief, the 
securities referred to above were not acquired and are not held for 
the purpose of or with the effect of changing or influencing the control 
of the issuer of the securities and were not acquired and are not held in 
connection with or as a participant in any transaction having that purpose 
or effect. 

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify 
that the information set forth in this statement is true, complete and correct. 

Date    September 16, 2005              

By:/s/ Gary U. Rolle

Name:   Gary U. Rolle
Title:  Chief Investment Officer