3D SYSTEMS CORP — Director's Dealing 2015

May 21, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3D SYSTEMS CORP (DDD)
CIK: 0000910638
Period of Report: 2015-05-19

Reporting Person: LOEWENBAUM G WALTER II (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-05-19	Common Stock	G	5100	$0.00	Disposed	210715	Indirect
2015-05-19	Common Stock	A	3000	—	Acquired	917394	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	376441	Indirect
Common Stock	33279	Indirect
Common Stock	5100	Indirect
Common Stock	5100	Indirect
Common Stock	60000	Indirect
Common Stock	55565	Indirect
Common Stock	67500	Indirect
Common Stock	198802	Indirect
Common Stock	180000	Indirect
Common Stock	18328	Indirect
Common Stock	44967	Indirect
Common Stock	50000	Indirect
Common Stock	50000	Indirect
Common Stock	81672	Indirect
Common Stock	55033	Indirect

Footnotes

F1: The Reporting Person disclaims beneficial ownership of these securities except to the extent of any pecuniary interest therein.

F2: These shares were awarded to the Reporting Person pursuant to the 2004 Restricted Stock Plan for Non-Employee Directors, and the Reporting Person purchased these shares at par value, or $0.001 per share.

F3: Mr. and Mrs. Loewenbaum serve as Trustees.

F4: Mr. Loewenbaum serves as Trustee.

F5: Mr. and Mrs. Loewenbaum are the general partners.

F6: The limited liability company is owned 100% by Mr. Loewenbaum.

F7: Excludes 81,672 shares previously held through George Walter Loewenbaum TTEE the GWLDDD 2014 Annuity Trust U/A Dtd 04/14/2014 which were transferred to The GWL3D 2015 Annuity Trust U/A Dtd 05/18/2015 on May 20, 2015. This did not change the Reporting Person's total beneficial ownership as of the transaction date.

F8: Excludes 55,033 shares previously held through Lillian Shaw Loewenbaum TTEE the LSLDDD 2014 Annuity Trust U/A Dtd 04/14/2014 which were transferred to The LSL3D 2015 Annuity Trust U/A Dtd 05/18/2015 on May 20, 2015. This did not change the Reporting Person's total beneficial ownership as of the transaction date.

F9: Mrs. Loewenbaum serves as trustee.

F10: Includes 81,672 shares previously held through George Walter Loewenbaum TTEE the GWLDDD 2014 Annuity Trust U/A Dtd 04/14/2014 which were transferred to The LSL3D 2015 Annuity Trust U/A Dtd 05/18/2015 on May 20, 2015. This did not change the Reporting Person's total beneficial ownership as of the transaction date.

F11: Includes 55,033 shares previously held through Lillian Shaw Loewenbaum TTEE the LSLDDD 2014 Annuity Trust U/A Dtd 04/14/2014 which were transferred to the The LSL3D 2015 Annuity Trust U/A Dtd 05/18/2015 on May 20, 2015. This did not change the Reporting Person's total beneficial ownership as of the transaction date.