UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

(Rule 13d-102)

Exponent, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

30214U102

(CUSIP Number)

April 29, 2005

Date of Event Which Requires Filing of the Statement

o

Rule 13d-1(b)

ý

Rule 13d-1(c)

o

Rule 13d-1(d)

CUSIP No.  30214U102

13G

Page 2 of 8 Pages

1.

NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

Trigran Investments, Inc.

2.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)

o

(b)

ý

3.

SEC USE ONLY

4.

CITIZENSHIP OR PLACE OF ORGANIZATION
Illinois company

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH

5.

SOLE VOTING POWER
0

6.

SHARED VOTING POWER 

416,348 shares of Common Stock

7.

SOLE DISPOSITIVE POWER 
0

8.

SHARED DISPOSITIVE POWER
See Row 6 above.

9.

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
See Row 6 above.

10.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES                                                                                                                                             o

11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

Approximately 5.2% as of the date of this filing (based on 7,971,877 shares of Common Stock issued and outstanding as of April 15, 2005).

12.

TYPE OF REPORTING PERSON
CO

CUSIP No.  30214U102

13G

Page 3 of 8 Pages

1.

NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

Douglas Granat

2.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)

o

(b)

ý

3.

SEC USE ONLY

4.

CITIZENSHIP OR PLACE OF ORGANIZATION
U.S. Citizen

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH

5.

SOLE VOTING POWER
0

6.

SHARED VOTING POWER 

416,348 shares of Common Stock

7.

SOLE DISPOSITIVE POWER 
0

8.

SHARED DISPOSITIVE POWER
See Row 6 above.

9.

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
See Row 6 above.

10.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES                                                                                                                                             o

11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

Approximately 5.2% as of the date of this filing (based on 7,971,877 shares of Common Stock issued and outstanding as of April 15, 2005).

12.

TYPE OF REPORTING PERSON
IN

CUSIP No.  30214U102

13G

Page 4 of 8 Pages

1.

NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

Lawrence A. Oberman

2.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)

o

(b)

ý

3.

SEC USE ONLY

4.

CITIZENSHIP OR PLACE OF ORGANIZATION
U.S. Citizen

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH

5.

SOLE VOTING POWER
0

6.

SHARED VOTING POWER

416,348 shares of Common Stock

7.

SOLE DISPOSITIVE POWER 
0

8.

SHARED DISPOSITIVE POWER
See Row 6 above.

9.

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
See Row 6 above.

10.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES                                                                                                                                             o

11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

Approximately 5.2% as of the date of this filing (based on 7,971,877 shares of Common Stock issued and outstanding as of April 15, 2005).

12.

TYPE OF REPORTING PERSON
IN

CUSIP No.  30214U102

13G

Page 5 of 8 Pages

Item 1(a)

Name of Issuer:   EXPONENT, INC.

Item 1(b)

Address of Issuer’s Principal Executive Offices:

149 Commonwealth Drive
Menlo Park, California 94025

Item 2(a)

Name of Person Filing

Item 2(b)

Address of Principal Business Office

Item 2(c)

Citizenship

Trigran Investments, Inc.

3201 Old Glenview Road, Suite 235

Wilmette, Illinois 60091

Illinois company

Douglas Granat

3201 Old Glenview Road, Suite 235

Wilmette, Illinois 60091

U.S. Citizen

Lawrence A. Oberman

3201 Old Glenview Road, Suite 235

Wilmette, Illinois 60091

U.S. Citizen

2(d)

Title of Class of Securities:

Common Stock, par value $0.001 per share

2(e)

CUSIP Number:       30214U102

Item 3

If this statement is filed pursuant to Rules 13d-1(b), or 13d-2(b) or (c), check whether the person filing is a:

(a)

[__]

Broker or dealer registered under Section 15 of the Exchange Act;

(b)

[__]

Bank as defined in Section 3(a)(6) of the Exchange Act;

(c)

[__]

Insurance company as defined in Section 3(a)(19) of the Exchange Act;

(d)

[__]

Investment company registered under Section 8 of the Investment Company Act;

(e)

[__]

An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);

CUSIP No.  30214U102

13G

Page 6 of 8 Pages

(f)

[__]

An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F);

(g)

[__]

A parent holding company or control person in accordance with Rule 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;

(j)

[__]

Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

If this statement is filed pursuant to Rule 13d-1(c), check this box.  ý

Item 4

Ownership:

TRIGRAN INVESTMENTS, INC.
DOUGLAS GRANAT
LAWRENCE A. OBERMAN

(a)

Amount beneficially owned:   

416,348 shares of Common Stock (1)

(b)

Percent of Class:   

Approximately 5.2% as of the date of this filing (based on 7,971,877 shares of Common Stock issued and outstanding as of April 15, 2005).

(c)

Number of shares as to which such person has:

(i)

sole power to vote or to direct the vote:   

0

(ii)

shared power to vote or to direct the vote:    

See Item 4(a) above.

(iii)

sole power to dispose or to direct the disposition of:   

0

(iv)

shared power to dispose or to direct the disposition of:   

See Item 4(a) above.

CUSIP No.  30214U102

13G

Page 7 of 8 Pages

(1)           Douglas Granat and Lawrence A. Oberman are the controlling shareholders and sole directors of Trigran Investments, Inc.  Trigran Investments, Inc. is the general partner of Trigran Investments, L.P. and Trigran Investments, L.P. II, and a manager of Provident Premier Master Fund LTD.  As of the date of this filing, Trigran Investments, L.P. directly owns 301,544 shares (representing approximately 3.8% of the outstanding shares of the issuer), Trigran Investments, L.P. II directly owns 49,804 shares (representing approximately 0.6% of the outstanding shares of the issuer), and Provident Premier Master Fund LTD directly owns 65,000 shares (representing approximately 0.8% of the outstanding shares of the issuer).

Item 5

Ownership of Five Percent or Less of a Class: 

Not Applicable.

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:

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.

CUSIP No.  30214U102

13G

Page 8 of 8 Pages

Dated this 5th day of May, 2005

TRIGRAN INVESTMENTS, INC.

By:

/s/ Lawrence A. Oberman

Name:   Lawrence A. Oberman

Its:   Executive Vice President

/s/ Lawrence A. Oberman

Lawrence A. Oberman

/s/ Douglas Granat

Douglas Granat