X0306 4 2012-04-30 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 2012-04-30 4 S 0 5000 29.3501 D 285867 I The LSL3D 2010 Annuity Trust Common Stock 2012-04-30 4 S 0 10000 29.4501 D 275867 I The LSL3D 2010 Annuity Trust Common Stock 2012-04-30 4 S 0 10000 29.5822 D 265867 I The LSL3D 2010 Annuity Trust Common Stock 264294 I By The Loewenbaum 1992 Trust Common Stock 243877 I By spouse Common Stock 22186 I By The Lillian Shaw Loewenbaum Trust Common Stock 1201700 D Common Stock 105334 I By Anna Willis Loewenbaum 1993 Trust Common Stock 43648 I By The Wally's Trust u/w/o Joel Simon Loewenbaum Common Stock 83454 I The Elizabeth Scott Loewenbaum 1993 Trust Common Stock 43710 I By The Waterproof Partnership, L.P. Common Stock 265869 I The GWL3D 2010 Annuity Trust Common Stock 45000 I Blanco Cattle & Ranch, LLC The Reporting Person disclaims beneficial ownership of these securities except to the extent of any pecuniary interest therein. Mrs. Loewenbaum serves as trustee. Mr. and Mrs. Loewenbaum serve as Trustees. Mr. Loewenbaum serves as Trustee. 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 2012-08-27