X0306 4 2018-08-06 0 0001314727 Sonos Inc SONO 0001466950 Index Ventures Growth I (Jersey) L.P. NO. 1 SEATON PLACE ST. HELIER Y9 JE4 8YJ JERSEY 0 0 1 0 0001447961 Index Venture Growth Associates I Ltd NO. 1 SEATON PLACE ST. HELIER Y9 Y9 JE4 8YJ JERSEY 0 0 1 0 0001466948 Index Ventures Growth I Parallel Entrepreneur Fund (Jersey) L.P. NO. 1 SEATON PLACE JERSEY (CHANNEL ISLANDS) Y9 JE4 8YJ JERSEY 0 0 1 0 0001591294 Yucca (Jersey) SLP NO. 1 SEATON PLACE ST. HELIER Y9 Y9 JE4 8YJ JERSEY 0 0 1 0 Common Stock 2018-08-06 4 C 0 10931734 A 10931734 D Common Stock 2018-08-06 4 C 0 381380 A 1092096 I See footnotes Common Stock 2018-08-06 4 C 0 56850 A 60420 I See footnotes Series C Preferred Stock 2018-08-06 4 C 0 10931734 0 D Common Stock 10931734 0 D Series C Preferred Stock 2018-08-06 4 C 0 381380 0 D Common Stock 381380 0 I See footnotes Series C Preferred Stock 2018-08-06 4 C 0 56850 0 D Common Stock 56850 0 I See footnotes In connection with the consummation of the Issuer's initial public offering on August 6, 2018, each share of Preferred Stock automatically converted into one (1) share of the Issuer's Common Stock for no additional consideration, and had no expiration date. All shares of Common Stock issued upon conversion were aggregated. The shares are held directly by Index Ventures Growth I Parallel Entrepreneur Fund (Jersey), L.P. ("Index I Parallel") Michelangelo Volpi, a member of the Issuer's Board of Directors, is a partner with the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures Growth I (Jersey), L.P. ("Index I"), Index I Parallel and Yucca (Jersey) SLP (collectively, the "Index Funds"). Mr. Volpi is involved in making recommendations to the Index Funds, but does not hold voting or dispositive power over the shares held by the Index Funds. Mr. Volpi disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for Section 16 or any other purpose. Index Venture Growth Associates I Limited ("IVGA I") is the general partner of Index I and Index I Parallel. Nigel Greenwood, Ian Henderson, Sinead Meehan, Bernard Dalle, Phil Balderson and David Hall are directors of IVGA I, and share voting and dispositive power with respect to the securities held by Index I and Index I Parallel. Each of these persons disclaims beneficial ownership of these securities except to the extent of his or her pecuniary interest therein. The shares are held directly by Yucca (Jersey) SLP ("Yucca"). Yucca is a co-investment vehicle that is contractually required to mirror the investment of Index I and Index I Parallel. The corporate general partner of Yucca is Yucca Associates Limited. Nigel T. Greenwood and Ian J. Henderson are directors of Yucca Associates Limited and share voting and dispositive power with respect to the securities held by Yucca. Each of these persons disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein. INDEX VENTURE GROWTH ASSOCIATES I LIMITED, By: /s/ I.J. Henderson, Its: Director 2018-08-06 INDEX VENTURE GROWTH ASSOCIATES I LIMITED as Managing General Partner of INDEX VENTURES GROWTH I (JERSEY), L.P., By: /s/ I.J. Henderson, Its: Director 2018-08-06 INDEX VENTURE GROWTH ASSOCIATES I LIMITED as Managing General Partner of INDEX VENTURES GROWTH I PARALLEL ENTREPRENEUR FUND (JERSEY), L.P., By: /s/ I.J. Henderson, Its: Director 2018-08-06 YUCCA (JERSEY) SLP, By Intertrust Employee Benefit Services Limited, as authorized signatory of Yucca (Jersey) SLP in its capacity as Administrator of the Index Co-Investment Scheme, By: /s/ Sarah Earles, /s/ Julie Gallon, Its: Authorized Signatories 2018-08-06