3D SYSTEMS CORP — Director's Dealing 2011

Jan 6, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3D SYSTEMS CORP (TDSC)
CIK: 0000910638
Period of Report: 2011-01-04

Reporting Person: LOEWENBAUM G WALTER II (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-01-04	Common Stock	M	75000	$11.75	Acquired	739924	Direct
2011-01-04	Common Stock	M	10000	$8.13	Acquired	749924	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-01-04	Stock Option (Right to Buy)	$11.75	M	75000	Disposed	2012-02-12	Common Stock (75000)	Direct
2011-01-04	Stock Option (Right to Buy)	$8.13	M	10000	Disposed	2013-08-26	Common Stock (10000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	11093	Indirect
Common Stock	110847	Indirect
Common Stock	102147	Indirect
Common Stock	33509	Indirect
Common Stock	19295	Indirect
Common Stock	21824	Indirect
Common Stock	21855	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.

F6: The shares subject to this option vested over a period of three years in equal annual installments (25,000 shares per year) commencing on February 12, 2002, the first anniversary of the date of grant.

F7: Granted as compensation for services as director.

F8: The shares subject to this option vested over a three year period in two equal installments of 3,333 shares per year and one installment of 3,334 shares commencing on August 26, 2003, the first anniversary of the date of grant.