SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Index Ventures Growth I (Jersey) L.P. (Last) (First) (Middle) 5TH FLOOR, 44 ESPLANADE, ST HELIER (Street) CHANNEL ISLANDS Y9 JE1 3FG (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 05/10/2021	3. Issuer Name and Ticker or Trading Symbol Squarespace, Inc. [ SQSP ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class A Common Stock	18,710,551	D(1)
Class A Common Stock	652,768	I	See footnote(2)
Class A Common Stock	97,300	I	See footnote(3)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* Index Ventures Growth I (Jersey) L.P. (Last) (First) (Middle) 5TH FLOOR, 44 ESPLANADE, ST HELIER (Street) CHANNEL ISLANDS Y9 JE1 3FG (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Index Ventures Growth I Parallel Entrepreneur Fund (Jersey) L.P. (Last) (First) (Middle) 5TH FLOOR, 44 ESPLANADE, ST HELIER (Street) CHANNEL ISLANDS Y9 JE1 3FG (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Yucca (Jersey) SLP (Last) (First) (Middle) 44 ESPLANADE, ST. HELIER (Street) CHANNEL ISLANDS Y9 JE4 9WG (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Index Venture Growth Associates I Ltd (Last) (First) (Middle) 5TH FLOOR, 44 ESPLANADE, ST HELIER (Street) CHANNEL ISLANDS Y9 JE1 3FG (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. The shares are held of record by Index Ventures Growth I (Jersey), L.P. ("Index I"). Index Venture Growth Associates I Limited ("IVGA I") is the managing general partner of Index I. IVGA I disclaims beneficial ownership of such shares for purposes of Section 16 of the Securities Exchange Act of 1934 ("Section 16") except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by it for Section 16 or any other purpose.

2. The shares are held of record by Index Ventures Growth I Parallel Entrepreneur Fund (Jersey), L.P. ("Index I Parallel"). IVGA I is the managing general partner of Index I Parallel. IVGA I disclaims Section 16 beneficial ownership of such shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by it for Section 16 or any other purpose.

3. The shares are held of record by Yucca (Jersey) SLP ("Yucca"). Yucca is the administrator of the Index co-investment vehicles that are contractually required to mirror the relevant Index funds' investment (in this case, Index I and Index I Parallel). IVGA I disclaims Section 16 beneficial ownership of such shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by it for Section 16 or any other purpose.

	/s/ Matt Miles	05/10/2021
	/s/ Matt Miles	05/10/2021
	/s/ David Middleton and Samuel Dustow	05/10/2021
	/s/ Matt Miles	05/10/2021
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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