X0306 4 2021-11-15 0 0001780201 Lulu's Fashion Lounge Holdings, Inc. LVLU 0001716997 Institutional Venture Management XVI, LLC 3000 SAND HILL ROAD BLDG 2, SUITE 250 MENLO PARK CA 94025 0 0 1 0 0001640275 Institutional Venture Management XV, LLC 3000 SAND HILL ROAD BLDG 2, SUITE 250 MENLO PARK CA 94025 0 0 1 0 0001716992 Institutional Venture Partners XVI, L.P. 300 SAND HILL ROAD, BLDG 2, SUITE 250 MENLO PARK CA 94025 0 0 1 0 Common Stock 2021-11-15 4 C 0 3730160 A 3730160 I Directly held by Institutional Venture Partners XV, L.P. Common Stock 2021-11-15 4 C 0 19843 A 19843 I Directly held by Institutional Venture Partners XV Executive Fund, L.P. Common Stock 2021-11-15 4 C 0 3749997 A 3749997 I Directly held by Institutional Venture Partners XVI, L.P. Series B Preferred Stock 2021-11-15 4 J 0 207232 D 0 I Directly held by Institutional Venture Partners XV, L.P. Series B Preferred Stock 2021-11-15 4 J 0 1102 D 0 I Directly held by Institutional Venture Partners XV Executive Fund, L.P. Series B Preferred Stock 2021-11-15 4 J 0 208383 D 0 I Directly held by Institutional Venture Partners XVI, L.P. Series A Preferred Stock 2021-11-15 4 C 0 778269 0.00 D Common Stock 3730160 0 I Directly held by Institutional Venture Partners XV, L.P. Series A Preferred Stock 2021-11-15 4 C 0 4140 0.00 D Common Stock 19843 0 I Directly held by Institutional Venture Partners XV Executive Fund, L.P. Series A Preferred Stock 2021-11-15 4 C 0 782408 0.00 D Common Stock 3749997 0 I Directly held by Institutional Venture Partners XVI, L.P. Each share of Series A Preferred Stock automatically converted into shares of Common Stock upon the closing of the Issuer's initial public offering (the "IPO") for no additional consideration, on a 1:4.79289 basis, and had no expiration date. Institutional Venture Management XV, LLC ("IVM XV") is the general partner of Institutional Venture Partners XV, L.P. ("IVP XV"). Todd C. Chaffee, Somesh Dash, Norman A. Fogelsong, Stephen J. Harrick, Jules A. Maltz, J. Sanford Miller and Dennis B. Phelps (collectively the "Managing Directors") and Eric Liaw are the managing directors of IVM XV and may be deemed to share voting and dispositive power over the shares held by IVP XV. Each of IVM XV and the Managing Directors disclaims beneficial ownership of these securities, except to the extent of its or his respective proportionate pecuniary interest therein. Mr. Liaw is a director of the Issuer and files separate Section 16 reports. IVM XV is the general partner of Institutional Venture Partners XV Executive Fund, L.P. ("IVP XV-EF"). The Managing Directors and Eric Liaw are the managing directors of IVM XV and may be deemed to share voting and dispositive power over the shares held by IVP XV-EF. Each of IVM XV and the Managing Directors disclaims beneficial ownership of these securities, except to the extent of its or his respective proportionate pecuniary interest therein. Mr. Liaw is a director of the Issuer and files separate Section 16 reports. Institutional Venture Management XVI, LLC ("IVM XVI") is the general partner of Institutional Venture Partners XVI, L.P. ("IVP XVI"). The Managing Directors and Eric Liaw are the managing directors of IVM XVI and may be deemed to share voting and dispositive power over the shares held by IVP XVI. Each of IVM XVI and the Managing Directors disclaims beneficial ownership of these securities, except to the extent of its or his respective proportionate pecuniary interest therein. Mr. Liaw is a director of the Issuer and files separate Section 16 reports. The shares of Series B Preferred Stock were redeemed by the Issuer and extinguished for cash consideration upon closing of the IPO and had no expiration date. 2 of 2: The number of joint filers exceeds the EDGAR maximum of 10 joint filers per Form. This Form 4 is being filed in conjunction with a Form 4 being filed by Institutional Venture Management XV, LLC. /s/ Crystal Landsem, Attorney-in-Fact 2021-11-18