X0306 4 2021-11-22 false 0001496963 Squarespace, Inc. SQSP 0001856603 O'Connor Courtenay C/O SQUARESPACE, INC.,225 VARICK ST, 12TH FLOOR NEW YORK NY 10014 false true false false General Counsel and Secretary Class A Common Stock 2021-11-22 4 M false 17500.00 0.00 A 42899.00 D Class A Common Stock 2021-11-22 4 F false 6673.00 33.20 D 36226.00 D Class A Common Stock 2021-11-22 4 S false 2175.00 33.62 D 34051.00 D Class A Common Stock 2021-11-22 4 S false 1500.00 34.41 D 32551.00 D Class A Common Stock 2021-11-22 4 S false 600.00 35.80 D 31951.00 D Class A Common Stock 2021-11-22 4 S false 100.00 36.85 D 31851.00 D Restricted Stock Units 0.00 2021-11-22 4 M false 17500.00 0.00 D Class A Common Stock 17500.00 0.00 D Shares withheld by Issuer to satisfy applicable withholding tax upon vesting of restricted stock units. This number represents an estimate of the number of shares of stock withheld to satisfy the reporting person's tax liability obligations in connection with the vesting of the restricted stock units and is subject to change as a result of the final calculation. The reporting person undertakes to amend this Form 4, if necessary, following the final calculation. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 3, 2021. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.07 to $34.05, 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, on request, full information regarding the number of shares sold at each separate price within the range set forth above. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.17 to $35.01, 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, on request, full information regarding the number of shares sold at each separate price within the range set forth above. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.53 to $36.01, 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, on request, full information regarding the number of shares sold at each separate price within the range set forth above. The restricted stock units vested on November 22, 2021. /s/ Allyson Wilkinson, as Attorney-in-Fact 2021-11-24