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

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * Schaer Hans Peter   2. Issuer Name and Ticker or Trading Symbol IHS Inc. [IHS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O IHS INC., 15 INVERNESS WAY EAST 3. Date of Earliest Transaction (Month/Day/Year) 05/14/2007 (Street) ENGLEWOOD, CO 80112 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 05/14/2007   J(1)   6,458,859 (1) D $ 0 0 (1) I (1) See Footnote (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

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

Class B common stock

(2)

05/18/2007

J(1)

13,500,000

(2)(3)

11/16/2009(2)(3)

Class A common stock

13,500,000

$ 0 (1)

0

I (1)

See Footnote (1)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Schaer Hans Peter C/O IHS INC. 15 INVERNESS WAY EAST ENGLEWOOD, CO 80112		X

Signatures

/s/Stephen Green, by power of attorney Name: Stephen Green		05/18/2007
**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)	Mr. Schaer is filing this form in his capacity as a director of Tornabuoni Limited ("Tornabuoni"). Tornabuoni was an entity that oversaw the trustee of the Thyssen Bornemisza Continuity Trust (the "Continuity Trust"). On May 14, 2007, the Continuity Trust was reorganized (the "Reorganization") and its assets were distributed to a number of newly created trusts. Upon completion of the Reorganization, the Continuity Trust was dissolved, and Tornabuoni is therefore no longer involved in the oversight of its trustee.
(2)	Each share of Class B common stock is convertible at any time at the option of the holder into one share of Class A common stock. In addition, each share of Class B common stock converts automatically, without any action by the holder, into one share of Class A common stock upon the earlier of: (1) any transfer, whether or not for value, except for (a) transfers to any trust, so long as such trust is the sole owner, directly or indirectly, of TBG Holdings NV and the principal beneficiary of such trust is Georg Heinrich
(3)	Thyssen-Bornemisza; and (b) transfers to any corporate entities, partnerships or other similar entities, so long as the Thyssen-Bornemisza Continuity Trust or any trust described in (a) above directly or indirectly wholly-owns such entities; (2) the death of Georg Heinrich Thyssen-Bornemisza; (3) November 16, 2009; and (4) the date on which holders of Class B common stock do not own at least 22% of the aggregate number of shares of Class A common stock and Class B common stock then outstanding, as determined by the Board of Directors of IHS Inc.

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

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.