Lightspeed Venture Partners IX, L.P. bought NTSK

Footnotes

Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO").; Each share of Series E Convertible Preferred Stock converted into Common Stock on a one-to-one basis prior to the completion of the IPO and had no expiration date.; Each share of Series F Convertible Preferred Stock converted into Common Stock on a one-to-one basis prior to the completion of the IPO and had no expiration date.; The shares are held of record by Lightspeed Venture Partners Select II, L.P., or Lightspeed Select II. Lightspeed General Partner Select II, L.P., or Lightspeed GP Select II, is the general partner of Lightspeed Select II and Lightspeed Ultimate General Partner Select II, Ltd., or Lightspeed UGP Select II, is the general partner of Lightspeed GP Select II. Messrs. Eggers, Mhatre and Nieh, the directors of Lightspeed UGP Select II, share voting and investment power with respect to the shares held of record by Lightspeed Select II. Each of Lightspeed GP Select II, Lightspeed UGP Select II and Messrs. Eggers, Mhatre and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein.