X0508 4 2024-08-08 false 0001496963 Squarespace, Inc. SQSP 0001856597 Casalena Anthony C/O SQUARESPACE, INC., 225 VARICK STREET, 12TH FLOOR NEW YORK NY 10014 true true true false Chief Executive Officer true Class A Common Stock 2024-08-08 4 S false 68659.00 44.18 D 1698304.00 I See footnote Class A Common Stock 2024-08-09 4 S false 47787.00 44.14 D 1650517.00 I See footnote The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2024. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $44.12 to $44.28, 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 shares are held of record by the Anthony Casalena Revocable Trust The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $44.14 to $44.16, 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. /s/ Jessica Krasner, as Attorney-in-Fact 2024-08-12