X0306 4 2021-02-23 0 0001437107 Discovery, Inc. DISCK 0001455381 ADVANCE LONG-TERM MANAGEMENT TRUST ONE NEWARK CENTER, 19TH FLOOR C/O ROBINSON MILLER. LLC NEWARK NJ 07102 1 0 1 0 0000914545 NEWHOUSE BROADCASTING CORP 6350 COURT STREET EAST SYRACUSE NY 13057 0 0 1 0 0000914546 ADVANCE PUBLICATIONS, INC 950 FINGERBOARD ROAD STATEN ISLAND NY 10305 0 0 1 0 0001455383 NEWHOUSE FAMILY HOLDINGS, L.P. ONE WORLD TRADE CENTER NEW YORK NY 10007 0 0 1 0 0001106770 ADVANCE/NEWHOUSE PARTNERSHIP 6350 COURT STREET EAST SYRACUSE NY 13057-1211 0 0 1 0 Series C Common Stock 2021-02-23 4 C 0 11000000 A 11000002 I See Footnote Series C Common Stock 2021-02-23 4 S 0 11000000 42.15 D 2 I See Footnote Series C-1 Convertible Participating Preferred Stock 2021-02-23 4 C 0 568041 D Series C Common Stock 11000000 214053 I See Footnote On February 23, 2021, Advance/Newhouse Partnership ("A/NP") converted 568,041 shares of Discovery, Inc.'s Series C-1 Convertible Participating Preferred Stock ("Preferred Shares") into 11,000,000 shares of Discovery, Inc.'s Series C Common Stock ("Common Shares"). A/NP is the record holder of the Preferred Shares and the Common Shares described above. The other reporting persons may be deemed to beneficially own the Preferred Shares and the Common Shares due to their control of A/NP. Each reporting person disclaims beneficial ownership except to the extent of its pecuniary interest. Each Preferred Share is convertible pursuant to its terms into 19.3648 Common Shares at any time. /s/ Oren Klein, Chief Financial Officer 2021-02-23 /s/ Michael A. Newhouse, Trustee 2021-02-23