3D SYSTEMS CORP — Director's Dealing 2012

May 1, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3D SYSTEMS CORP (DDD)
CIK: 0000910638
Period of Report: 2012-04-30

Reporting Person: LOEWENBAUM G WALTER II (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-04-30	Common Stock	S	3300	$29.31	Disposed	312569	Indirect
2012-04-30	Common Stock	S	1300	$29.311	Disposed	311269	Indirect
2012-04-30	Common Stock	S	200	$29.3114	Disposed	311069	Indirect
2012-04-30	Common Stock	S	200	$29.34	Disposed	310869	Indirect
2012-04-30	Common Stock	S	4500	$29.41	Disposed	306369	Indirect
2012-04-30	Common Stock	S	400	$29.411	Disposed	305969	Indirect
2012-04-30	Common Stock	S	100	$29.4132	Disposed	305869	Indirect
2012-04-30	Common Stock	S	8981	$29.44	Disposed	296888	Indirect
2012-04-30	Common Stock	S	100	$29.445	Disposed	296788	Indirect
2012-04-30	Common Stock	S	300	$29.47	Disposed	296488	Indirect
2012-04-30	Common Stock	S	619	$29.48	Disposed	295869	Indirect
2012-04-30	Common Stock	S	3200	$29.59	Disposed	292669	Indirect
2012-04-30	Common Stock	S	200	$29.60	Disposed	292469	Indirect
2012-04-30	Common Stock	S	400	$29.61	Disposed	292069	Indirect
2012-04-30	Common Stock	S	758	$29.63	Disposed	291311	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	279294	Indirect
Common Stock	268877	Indirect
Common Stock	22186	Indirect
Common Stock	1302377	Direct
Common Stock	105334	Indirect
Common Stock	83454	Indirect
Common Stock	43648	Indirect
Common Stock	43710	Indirect
Common Stock	315867	Indirect
Common Stock	45000	Indirect

Footnotes

F1: The Reporting Person disclaims beneficial ownership of these securities except to the extent of any pecuniary interest therein.

F2: Mr. Loewenbaum serves as Trustee.

F3: Mr. and Mrs. Loewenbaum serve as Trustees.

F4: Mr. and Mrs. Loewenbaum are the general partners.

F5: Mrs. Loewenbaum serves as trustee.

F6: The limited liability company is owned 100% by Mr. Loewenbaum.