X0306 4 2013-11-11 0 0000910638 3D SYSTEMS CORP DDD 0001105966 LOEWENBAUM G WALTER II 333 THREE D SYSTEMS CIRCLE ROCK HILL SC 29730 1 0 0 0 Common Stock 2013-11-11 4 S 0 50000 76.74 D 1027814 D Common Stock 2013-11-11 4 S 0 30000 76.25 D 218802 I Elizabeth Scott Loewenbaum 2010 Trust Common Stock 396441 I By The Loewenbaum 1992 Trust Common Stock 365815 I By spouse Common Stock 33279 I By The Lillian Shaw Loewenbaum Trust Common Stock 5100 I By Anna Willis Loewenbaum 1993 Trust Common Stock 5100 I The Elizabeth Scott Loewenbaum 1993 Trust Common Stock 60000 I By The Wally's Trust u/w/o Joel Simon Loewenbaum Common Stock 65565 I By The Waterproof Partnership, L.P. Common Stock 67500 I Blanco Cattle & Ranch, LLC Common Stock 200000 I Anna Loewenbaum Hargrove 2010 Trust The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $76.40 to $77.25, 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. The Reporting Person disclaims beneficial ownership of these securities except to the extent of any pecuniary interest therein. Mr. Loewenbaum serves as Trustee. Mr. and Mrs. Loewenbaum serve as Trustees. Mr. and Mrs. Loewenbaum are the general partners. The limited liability company is owned 100% by Mr. Loewenbaum. /s/ Andrew M. Johnson, Attorney-in-Fact 2013-11-12