X0306 4 2020-05-05 1 0001397702 Silk Road Medical Inc SILK 0000929408 WARBURG PINCUS & CO. C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK, NY 10017 0 0 1 0 0001162870 WARBURG PINCUS LLC C/O WARBURG PINCUS LLC 450 LEXINGTON AVENUE NEW YORK NY 10017 0 0 1 0 Common Stock 2020-05-05 4 S 0 4885078 39.00 D 1021223 D In connection with the Issuer's public offering, 4,733,641 shares were sold by WP X Finance, L.P. ("WP X Finance"), and 151,437 shares were sold by Warburg Pincus X Partners, L.P. ("WPXP"), each to the underwriters of the public offering. Pursuant to an underwritten public offering of the Issuer's common stock (the "Offering"), on May 5, 2020, the Issuer, WP X Finance, WPXP and the underwriters of the Offering (the "Underwriter"), entered into an Underwriting Agreement (the "Underwriting Agreement"). Pursuant to the Underwriting Agreement, WP X Finance and WPXP sold an aggregate of 4,885,078 shares of common stock of the issuer to the Underwriters. The per share sale price reported in this Form 4 does not reflect underwriting discounts. 989,570 of these shares are held by WP X Finance and 31,653 of these shares are held by WPXP. WPX GP, L.P., a Delaware limited partnership ("WPX GP"), is the managing general partner of WP X Finance. Warburg Pincus Private Equity X, L.P., a Delaware limited partnership ("WP X"), is the general partner of WPX GP. Warburg Pincus X, L.P., a Delaware limited partnership ("WPX LP"), is the general partner of WP X and WPXP. Warburg Pincus X GP L.P., a Delaware limited partnership ("WP X GP LP"), is the general partner of WPX LP. WPP GP LLC, a Delaware limited liability company ("WPP GP"), is the general partner of WP X GP LP. Warburg Pincus Partners, L.P., a Delaware limited partnership ("WP Partners"), is the managing member of WPP GP. Warburg Pincus Partners GP LLC, a Delaware limited liability company ("WP Partners GP"), is the general partner of WP Partners. (continuation from footnote 4) Warburg Pincus & Co., a New York general partnership ("WP"), is the managing member of WP Partners GP. Warburg Pincus LLC, a New York limited liability company ("WP LLC") is the manager of WP X Finance, WPXP, and WP X. Due to a 10-filer limitation, this is the first of two Forms 4 filed by entities related to WP X Finance, L.P. See Exhibit 99.1 2020-05-07