DDD · 3D Systems Corp · Insider Trading

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.53 to $3.62, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, 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 range set forth in this footnote.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.53 to $3.59, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, 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 range set forth in this footnote.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on September 5, 2025.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on September 5, 2024.

Shares reported were withheld to satisfy tax withholding obligations with respect to vestings of grants of restricted stock originally made on September 5, 2024.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on September 5, 2024.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on September 5, 2024.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on September 5, 2024.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on September 5, 2024.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.25 to $3.33, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, 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 range set forth in this footnote.

Inadvertently filed late due to administrative error.

Shares were awarded to the Reporting Person under the Issuer's 2015 Incentive Plan pursuant to the Non-Employee Director Compensation Policy.

Inadvertently filed late due to administrative error.

Shares were awarded to the Reporting Person under the Issuer's 2015 Incentive Plan pursuant to the Non-Employee Director Compensation Policy.

Inadvertently filed late due to administrative error.

Shares were awarded to the Reporting Person under the Issuer's 2015 Incentive Plan pursuant to the Non-Employee Director Compensation Policy.

Inadvertently filed late due to administrative error.

Shares were awarded to the Reporting Person under the Issuer's 2015 Incentive Plan pursuant to the Non-Employee Director Compensation Policy.

Inadvertently filed late due to administrative error.

Shares were awarded to the Reporting Person under the Issuer's 2015 Incentive Plan pursuant to the Non-Employee Director Compensation Policy.

Inadvertently filed late due to administrative error.

Shares were awarded to the Reporting Person under the Issuer's 2015 Incentive Plan pursuant to the Non-Employee Director Compensation Policy.

Inadvertently filed late due to administrative error.

Shares were awarded to the Reporting Person under the Issuer's 2015 Incentive Plan pursuant to the Non-Employee Director Compensation Policy.

Inadvertently filed late due to administrative error.

Shares were awarded to the Reporting Person under the Issuer's 2015 Incentive Plan pursuant to the Non-Employee Director Compensation Policy.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on April 14, 2023.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on April 14, 2023.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on April 14, 2023.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on April 14, 2023.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on April 14, 2023.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on April 1, 2025.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on April 1, 2025.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on April 1, 2025.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on April 1, 2025.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on April 1, 2025.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on April 1, 2025.

Each performance share unit represents a contingent right to receive one share of the Issuer's common stock. The performance share units vest upon the Issuer's common stock achieving a specified price per share.

Each performance share unit represents a contingent right to receive one share of the Issuer's common stock. The performance share units vest upon the Issuer's common stock achieving a specified price per share.

On March 20, 2026, the Reporting Person was awarded 175,000 shares of restricted stock under the Issuer's 2015 Incentive Plan. One-third of the total shares awarded vest on April 1, 2027, an additional one-third of the total shares awarded vest on April 1, 2028, and the remaining shares awarded vest on April 1, 2029, subject to continued employment.

On March 20, 2026, the Reporting Person was awarded 250,000 shares of restricted stock under the Issuer's 2015 Incentive Plan. One-third of the total shares awarded vest on April 1, 2027, an additional one-third of the total shares awarded vest on April 1, 2028, and the remaining shares awarded vest on April 1, 2029, subject to continued employment.

On March 13, 2026, the Reporting Person was awarded 92,500 shares of restricted stock under the Issuer's 2015 Incentive Plan . One-third of the total shares awarded vest on April 1, 2027, an additional one-third of the total shares awarded vest on April 1, 2028, and the remaining shares awarded vest on April 1, 2029, subject to continued employment.

Each performance share unit represents a contingent right to receive one share of the Issuer's common stock. The performance share units vest upon the Issuer's common stock achieving a specified price per share.

Each performance share unit represents a contingent right to receive one share of the Issuer's common stock. The performance share units vest upon the Issuer's common stock achieving a specified price per share.

Each performance share unit represents a contingent right to receive one share of the Issuer's common stock. The performance share units vest upon the Issuer's common stock achieving a specified price per share.

On March 13, 2026, the Reporting Person was awarded 100,000 shares of restricted stock under the Issuer's 2015 Incentive Plan . One-third of the total shares awarded vest on April 1, 2027, an additional one-third of the total shares awarded vest on April 1, 2028, and the remaining shares awarded vest on April 1, 2029, subject to continued employment.

Each performance share unit represents a contingent right to receive one share of the Issuer's common stock. The performance share units vest upon the Issuer's common stock achieving a specified price per share.

On March 13, 2026, the Reporting Person was awarded 62,500 shares of restricted stock under the Issuer's 2015 Incentive Plan. One-third of the total shares awarded vest on April 1, 2027, an additional one-third of the total shares awarded vest on April 1, 2028, and the remaining shares awarded vest on April 1, 2029, subject to continued employment.

On March 13, 2026, the Reporting Person was awarded 50,000 shares of restricted stock under the Issuer's 2015 Incentive Plan. One-third of the total shares awarded vest on April 1, 2027, an additional one-third of the total shares awarded vest on April 1, 2028, and the remaining shares awarded vest on April 1, 2029, subject to continued employment.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on December 12, 2022.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on December 2, 2022.

Shares were awarded to the Reporting Person under the Issuer's 2015 Incentive Plan pursuant to the Non-Employee Director Compensation Policy.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on September 5, 2024.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on September 5, 2024.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on September 5, 2024.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on September 5, 2024.

The Reporting Person has been awarded 414,507 shares of restricted stock under the Issuer's 2015 Incentive Plan. One-third of the total shares awarded vest on September 5, 2026, an additional one-third of the total shares awarded vest on September 5, 2027, and the remaining shares awarded vest on September 5, 2028, subject to continued employment.

Shares reported were withheld to satisfy tax withholding obligations with respect to the vesting of a grant of restricted stock originally made on September 5, 2024.