SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of

The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 30, 2006

STRUCTURED ASSET MORTGAGE INVESTMENTS II INC. (as company under a Pooling and Servicing Agreement dated as of April 1, 2006 providing for, inter alia, the issuance of Bear Stearns Alt-A Trust, Mortgage Pass-Through Certificates, Series 2006-4)

(Exact name of registrant as specified in its charter)

Delaware

333-132232

30-0183252

(State or other jurisdiction of incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

383 Madison Avenue

New York, New York

10179

(Address of principal executive office)

(Zip Code)

212-272-2000

(Registrant's telephone number, including area code )

N/A

(Former name or address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Items 1 through 7 are not included because they are not applicable.

Item 8.01. Other Events.

On June 30, 2006, Structured Asset Mortgage Investments II Inc. caused the issuance and sale of the Bear Stearns ALT-A Trust, Mortgage Pass-Through Certificates, 2006-4, pursuant to a Pooling and Servicing Agreement, dated as of June 1, 2006, among Structured Asset Mortgage Investments II Inc., as depositor, Wells Fargo Bank, National Association, as master servicer and securities administrator, EMC Mortgage Corporation, as seller, and U.S. Bank National Association., as trustee.

Item 9.01.	Financial Statements and Exhibits.

	(a) Not applicable

	(b) Not applicable

	(c) Exhibits (executed copies): The following execution copies of Exhibits to
the Form S-3 Registration Statement of the Registrant are hereby filed:

		Sequentially
Exhibit		Numbered
Number		Exhibit Page

10.1	Pooling and Servicing Agreement, dated as of June 1, 2006 among Structured Asset Mortgage Investments II Inc., as depositor, Wells Fargo Bank, National Association, as master servicer and securities administrator, EMC Mortgage Corporation, as seller, and U.S. Bank National Association, as trustee.

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on behalf of the Registrant by the undersigned thereunto duly authorized.

STRUCTURED ASSET MORTGAGE INVESTMENTS II INC.

By: /s/ Baron Silverstein

Name: Baron Silverstein

Title: Vice President

Dated: July 17, 2006

[8-K – PSA]

EXHIBIT INDEX

Exhibit Number

Description

10.1

Pooling and Servicing Agreement

EXHIBIT 1

Bear Stearns ALT-A Trust 2006-4 8-K