3D SYSTEMS CORP — Director's Dealing 2012

May 11, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3D SYSTEMS CORP (DDD)
CIK: 0000910638
Period of Report: 2012-05-10

Reporting Person: HULL CHARLES W (Director, EVP, Chief Technology Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-10	Common Stock	S	100	$27.76	Disposed	629910	Indirect
2012-05-10	Common Stock	S	100	$27.82	Disposed	629810	Indirect
2012-05-10	Common Stock	S	300	$27.85	Disposed	629510	Indirect
2012-05-10	Common Stock	S	100	$27.855	Disposed	629410	Indirect
2012-05-10	Common Stock	S	195	$27.88	Disposed	629215	Indirect
2012-05-10	Common Stock	S	500	$27.89	Disposed	628715	Indirect
2012-05-10	Common Stock	S	100	$27.90	Disposed	628615	Indirect
2012-05-10	Common Stock	S	364	$27.93	Disposed	628251	Indirect
2012-05-10	Common Stock	S	136	$27.94	Disposed	628115	Indirect
2012-05-10	Common Stock	S	500	$27.95	Disposed	627615	Indirect
2012-05-10	Common Stock	S	200	$27.96	Disposed	627415	Indirect
2012-05-10	Common Stock	S	300	$27.98	Disposed	627115	Indirect
2012-05-10	Common Stock	S	300	$27.99	Disposed	626815	Indirect
2012-05-10	Common Stock	S	400	$28.00	Disposed	626415	Indirect
2012-05-10	Common Stock	S	200	$28.01	Disposed	626215	Indirect
2012-05-10	Common Stock	S	100	$28.02	Disposed	626115	Indirect
2012-05-10	Common Stock	S	200	$28.03	Disposed	625915	Indirect
2012-05-10	Common Stock	S	200	$28.04	Disposed	625715	Indirect
2012-05-10	Common Stock	S	200	$28.05	Disposed	625515	Indirect
2012-05-10	Common Stock	S	100	$28.06	Disposed	625415	Indirect
2012-05-10	Common Stock	S	100	$28.08	Disposed	625315	Indirect
2012-05-10	Common Stock	S	55	$28.09	Disposed	625260	Indirect
2012-05-10	Common Stock	S	100	$28.10	Disposed	625160	Indirect
2012-05-10	Common Stock	S	100	$28.14	Disposed	625060	Indirect
2012-05-10	Common Stock	S	100	$28.21	Disposed	624960	Indirect
2012-05-10	Common Stock	S	100	$28.31	Disposed	624860	Indirect
2012-05-10	Common Stock	S	100	$28.38	Disposed	624760	Indirect
2012-05-10	Common Stock	S	100	$28.42	Disposed	624660	Indirect
2012-05-10	Common Stock	S	100	$28.47	Disposed	624560	Indirect
2012-05-10	Common Stock	S	100	$28.48	Disposed	624460	Indirect

Footnotes

F1: Automatic disposition of shares pursuant to Rule 10b5-1 Sales Plan.

F2: By the Charles William Hull and Charlene Antoinette Hull 1992 Revocable Living Trust for which the Reporting Person serves as trustee.