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

SCHEDULE 13G/A

Under the Securities Exchange Act of 1934

3D Systems Corp.
(Name of Issuer)

Voting Shares of Common Stock
(Title of Class of Securities)

88554D205
(CUSIP Number)

5/1/2011
Date of Event Which Requires Reporting

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)

*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Page 1 of 5 pages 

CUSIP No. 88554D205 Page 2 of 5 Pages

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

 St. Denis J. Villere & Company, L.L.C.
 I.R.S. Identification No. 72-0343760

--------------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
 (a) / / (b) / X /

--------------------------------------------------------------------------------
3. SEC USE ONLY

--------------------------------------------------------------------------------
4. CITIZENSHIP OR PLACE OR ORGANIZATION
 Louisiana
--------------------------------------------------------------------------------
NUMBER OF 5. SOLE VOTING POWER
 405,985
SHARES ---------------------------------------------------------------

BENEFICIALLY 6. SHARED VOTING POWER
 1,807,569
OWNED BY ---------------------------------------------------------------

EACH 7. SOLE DISPOSITIVE POWER
 405,985
REPORTING ---------------------------------------------------------------

PERSON 8. SHARED DISPOSITIVE POWER
 1,807,569
WITH ---------------------------------------------------------------

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 2,213,554 Shares

--------------------------------------------------------------------------------
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
 CERTAIN SHARES*
 N/A

--------------------------------------------------------------------------------
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
 8.69%

--------------------------------------------------------------------------------
12. TYPE OF REPORTING PERSON*
 IA

--------------------------------------------------------------------------------
 *SEE INSTRUCTION BEFORE FILLING OUT!





 Page 2 of 5 pages

SCHEDULE 13G/A

ITEM 1.

This Schedule 13G/A relates to shares of the Voting Shares of Common Stock (the "Shares") of 3D Systems Corp., a Delaware corporation (the "Issuer"), whose principal executive offices are located at 333 Three D Systems Circle Rock Hill, SC 29730.

ITEM 2.

(a) - (c) The person filing this Schedule 13G/A is St. Denis J. Villere & Company, L.L.C., a Louisiana limited liability company ("Villere"), with its principal business office located at 601 Poydras St., Suite 1808, New Orleans, Louisiana 70130.

(d) Title of Class of Securities: Voting Shares of Common Stock

(e) CUSIP Number: 88554D205

ITEM 3.

Villere is filing this Schedule 13G/A as an Investment Adviser registered under Section 203 of the Investment Advisers Act of 1940.

ITEM 4. Ownership.

(a) - (c) As of December 31, 2010, Villere was deemed to have or share voting or dispositive power over, and therefore to own beneficially, the number and percentage of Shares of the Issuer indicated below: 

Number Percentage of Sole Shared Sole Shared
of Outstanding Voting Voting Dispositive Dispositive
Shares Shares Power Power Power Power
------ ------------- ------ --------- ------------ -----------
2,213,554 8.69% 405,985 1,807,569 405,985 1,807,569

Page 3 of 5 pages

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 acquired and held in the ordinary course of business and 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.

Page 4 of 5 pages

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: May 24, 2011

ST. DENIS J. VILLERE & COMPANY, L.L.C. 

By: /s/ George G. Villere
 ----------------------------
 George G. Villere
 Member

Page 5 of 5 pages

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