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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
910638	3D Systems Corp	DDD	Services-Prepackaged Software (7372)	954431352

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1251199	Kevin Mcalea	333 Three D Systems Circle Rock Hill SC 29730	Vice President	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2012-10-31	73,000	$2.66	184,456	No	4	M	Direct
Common Stock	Disposition	2012-10-31	73,000	$43.09	111,456	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (Right to Buy)	Disposition	2012-10-31	73,000	$0.00	73,000	$2.66

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2013-05-15	No	4	M	Direct

Footnotes

The price reported in Column 4 is a weighted price. These shares were sold in multiple transactions at prices ranging from $42.70 to $43.69, inclusive. The reporting person undertakes to provide to 3D Systems Corporation, any security holder of 3D Systems Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 1 of this Form 4.
These shares are part of the total original grant of 55,000 options which vested over a period of two years in equal installments of 27,500 per year, commencing on May 15, 2004, the first anniversary of the grant date. An additional 55,000 resulted from the Corporation's two-for-one stock split to the Corporation's stockholders on May 18, 2011.
Granted as compensation for services as an employee.