3D SYSTEMS CORP — Director's Dealing 2010

Dec 14, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3D SYSTEMS CORP (TDSC)
CIK: 0000910638
Period of Report: 2010-12-13

Reporting Person: LOEWENBAUM G WALTER II (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-12-13	Common Stock	S	248	$30.241	Disposed	672936	Direct
2010-12-13	Common Stock	S	100	$30.39	Disposed	672836	Direct
2010-12-13	Common Stock	S	100	$30.40	Disposed	672736	Direct
2010-12-13	Common Stock	S	778	$30.41	Disposed	671958	Direct
2010-12-13	Common Stock	S	195	$30.42	Disposed	671763	Direct
2010-12-13	Common Stock	S	702	$30.43	Disposed	671061	Direct
2010-12-13	Common Stock	S	302	$30.44	Disposed	670759	Direct
2010-12-13	Common Stock	S	300	$30.45	Disposed	670459	Direct
2010-12-13	Common Stock	S	100	$30.48	Disposed	670359	Direct
2010-12-13	Common Stock	S	400	$30.49	Disposed	669959	Direct
2010-12-13	Common Stock	S	400	$30.70	Disposed	669559	Direct
2010-12-13	Common Stock	S	80	$30.71	Disposed	669479	Direct
2010-12-13	Common Stock	S	535	$30.80	Disposed	668944	Direct
2010-12-13	Common Stock	S	1500	$31.52	Disposed	667444	Direct
2010-12-13	Common Stock	S	1000	$31.58	Disposed	666444	Direct
2010-12-13	Common Stock	S	465	$31.79	Disposed	665979	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	102147	Indirect
Common Stock	110847	Indirect
Common Stock	11093	Indirect
Common Stock	49579	Indirect
Common Stock	33509	Indirect
Common Stock	21824	Indirect
Common Stock	23855	Indirect
Common Stock	50057	Indirect
Common Stock	181526	Indirect
Common Stock	181525	Indirect

Footnotes

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

F2: Mr. and Mrs. Loewenbaum serve as Trustees.

F3: Mr. Loewenbaum serves as Trustee.

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

F5: Mrs. Loewenbaum serves as trustee.