3D SYSTEMS CORP — Director's Dealing 2010

Dec 13, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3D SYSTEMS CORP (TDSC)
CIK: 0000910638
Period of Report: 2010-12-10

Reporting Person: LOEWENBAUM G WALTER II (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-12-10	Common Stock	S	3000	$30.63	Disposed	686924	Direct
2010-12-10	Common Stock	S	3500	$30.70	Disposed	683424	Direct
2010-12-10	Common Stock	S	2500	$30.73	Disposed	680924	Direct
2010-12-10	Common Stock	S	1500	$30.83	Disposed	679424	Direct
2010-12-10	Common Stock	S	2500	$31.07	Disposed	676924	Direct
2010-12-10	Common Stock	S	2500	$31.18	Disposed	674424	Direct
2010-12-10	Common Stock	S	1240	$31.27	Disposed	673184	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	102147	Indirect
Common Stock	110847	Indirect
Common Stock	11093	Indirect
Common Stock	33509	Indirect
Common Stock	49579	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 serve as Trustees.

F5: Mrs. Loewenbaum serves as trustee.