SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* TPG WAFER HOLDINGS LLC (Last) (First) (Middle) C/O TEXAS PACIFIC GROUP 301 COMMERCE STREET, SUITE 3300 (Street) FORT WORTH TX 76102 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol MEMC ELECTRONIC MATERIALS INC [ WFR ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 02/07/2007
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

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
Common Stock, par value $0.01 per share	02/07/2007		S		20,000,000(1)	D	$53.07	16,653,802(2)	D(3)(4)(5)

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 Securities Underlying Derivative Security (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: 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

1. Name and Address of Reporting Person* TPG WAFER HOLDINGS LLC (Last) (First) (Middle) C/O TEXAS PACIFIC GROUP 301 COMMERCE STREET, SUITE 3300 (Street) FORT WORTH TX 76102 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* TPG WAFER PARTNERS LLC (Last) (First) (Middle) (Street) (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. Represents a sale of 20,000,000 of Common Stock held by TPG Wafer Holdings LLC (the "Reporting Person").

2. Represents 11,976,526 shares of Common stock held by the Reporting Person and 4,677,276 warrants to purchase Common Stock held by members of the Reporting Person.

3. David Bonderman and James G. Coulter (the "Shareholders") are directors, officers and shareholders of TPG Advisors III, Inc. ("TPG Advisors III"), which is the general partner of TPG GenPar III, L.P., which in turn is the sole general partner of each of TPG Partners III, L.P. ("Partners III"), TPG Parallel III, L.P. ("Parallel III"), TPG Investors III, L.P. ("Investors III"), FOF Partners III, L.P. ("FOF") and FOF Partners III-B, L.P. ("FOF B") and the managing partner of TPG Dutch Parallel III, C.V. ("Dutch Parallel III"). The Shareholders are also directors, officers and stockholders of T3 Advisors, Inc. ("T3 Advisors"), which is the general partner of T3 GenPar, L.P., which in turn is the sole general partner of each of T3 Partners, L.P. ("T3 Partners"), T3 Parallel, L.P. ("T3 Parallel") and T3 Investors, L.P. ("T3 Investors") and the managing partner of T3 Dutch Parallel C.V. ("T3 Dutch").

4. The Shareholders are directors, officers and stockholders of T3 Advisors II, Inc., which is the general partner of T3 GenPar II, L.P., which in turn is the sole general partner of each of T3 Partners II, L.P. ("T3 Partners II") and T3 Parallel II, L.P. ("T3 Parallel II"). Partners III, Parallel III, Investors III, FOF, FOF B, Dutch Parallel III, T3 Partners, T3 Parallel, T3 Investors, T3 Dutch, T3 Partners II and T3 Parallel II (collectively, the "TPG Funds") are members of TPG Wafer Partners LLC ("Wafer Partners"), which in turn is the managing member of each of the Reporting Person and TPG Wafer Management LLC ("Wafer Management"). Wafer Management is a member of the Reporting Person.

5. Pursuant to Rule 13d-3 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), TPG Advisors III, T3 Advisors, T3 Advisors II and the TPG Funds may be deemed to beneficially own all of the securities disclosed on this Form 4. Pursuant to Rule 16a-1(a)(2)(ii)(B) under the Exchange Act, each Shareholder may be deemed to be the beneficial owner of the shares owned by TPG Advisors III, T3 Advisors, T3 Advisors II and the TPG Funds only to the extent of the greater of his direct or indirect interest in the profits or capital accounts of such entities. Pursuant to Rule 16a-1(a)(4) under the Exchange Act, this filing shall not be deemed an admission that each Shareholder is, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owner of any securities beneficially owned by TPG Advisors III, T3 Advisors, T3 Advisors II and the TPG Funds in excess of such amount.

Remarks:

In addition to the indirect interests of Wafer Partners and Wafer Management in the Reporting Person described in notes (3), (4) and (5) above, following the transactions reported herein, Wafer Partners and Wafer Management continue to hold directly 2,764,271 and 70,159 warrants to purchase Common Stock, respectively.

	TPG Wafer Holdings LLC, TPG Wafer Partners LLC and TPG Wafer Management LLC, by Clive D. Bode, Vice President	02/09/2007
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
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