X0508 4 2025-12-10 0 0001810806 Unity Software Inc. U 0001824018 Helgason David C/O UNITY SOFTWARE INC 116 NEW MONTGOMERY STREET SAN FRANCISCO CA 94105-3607 1 0 0 0 1 Common Stock 2025-12-10 4 S 0 306688 50.1596 D 5832485 I See Footnote Common Stock 2025-12-11 4 S 0 93312 51.1637 D 5739173 I See Footnote Common Stock 2025-12-11 4 S 0 300000 49.1615 D 5439173 I See Footnote Common Stock 2025-12-11 4 S 0 8347 49.1615 D 7635 D The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 9, 2024. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.0000 to $50.6400, 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, fullinformation regarding the number of shares sold at each separate price within the range set forth in this Form 4. By investment vehicles owned and controlled by Mr. Helgason. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.7250 to $51.6500, 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, fullinformation regarding the number of shares sold at each separate price within the range set forth in this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $48.9150 to $49.5200, 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, fullinformation regarding the number of shares sold at each separate price within the range set forth in this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.1100 to $49.1850, 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, fullinformation regarding the number of shares sold at each separate price within the range set forth in this Form 4. /s/ David Helgason 2025-12-12