X0609 4 2026-09-24 0 0001326801 Meta Platforms, Inc. META 0001548760 Zuckerberg Mark false C/O META PLATFORMS, INC. 1 META WAY MENLO PARK CA 94025 1 1 1 0 COB and CEO 1 Class A Common Stock 2026-09-24 4 C 0 17140 0 A 17140 I By CZI Holdings, LLC Class A Common Stock 2026-09-24 4 S 0 2093 775.3906 D 15047 I By CZI Holdings, LLC Class A Common Stock 2026-09-24 4 S 0 2516 776.5564 D 12531 I By CZI Holdings, LLC Class A Common Stock 2026-09-24 4 S 0 7607 777.6303 D 4924 I By CZI Holdings, LLC Class A Common Stock 2026-09-24 4 S 0 4324 778.3554 D 600 I By CZI Holdings, LLC Class A Common Stock 2026-09-24 4 S 0 600 779.3263 D 0 I By CZI Holdings, LLC Class A Common Stock 2026-09-24 4 S 0 1133 775.3185 D 1229904 I By Chan Zuckerberg Biohub, Inc. Class A Common Stock 2026-09-24 4 S 0 1769 776.5624 D 1228135 I By Chan Zuckerberg Biohub, Inc. Class A Common Stock 2026-09-24 4 S 0 4810 777.6616 D 1223325 I By Chan Zuckerberg Biohub, Inc. Class A Common Stock 2026-09-24 4 S 0 2146 778.3993 D 1221179 I By Chan Zuckerberg Biohub, Inc. Class A Common Stock 2026-09-24 4 S 0 476 779.2765 D 1220703 I By Chan Zuckerberg Biohub, Inc. Class B Common Stock 2026-09-24 4 C 0 17140 0 D Class A Common Stock 17140 100102127 I By CZI Holdings, LLC Class B Common Stock Class A Common Stock 3388097 3388097 I By Mark Zuckerberg, Trustee Of The Mark Zuckerberg Trust Dated July 7, 2006 Class B Common Stock Class A Common Stock 17061801 17061801 I By Chan Zuckerberg Holdings, LLC Class B Common Stock Class A Common Stock 12000000 12000000 I By CZI Holdings I, LLC Class B Common Stock Class A Common Stock 8663023 8663023 I By Chan Zuckerberg Holdings II, LLC Class B Common Stock Class A Common Stock 50000000 50000000 I By Chan Zuckerberg Holdings III, LLC Class B Common Stock Class A Common Stock 100 100 I CZ Management, LLC Class B Common Stock Class A Common Stock 50000000 50000000 I By Chan Zuckerberg Holdings IV, LLC Class B Common Stock Class A Common Stock 50000000 50000000 I By Chan Zuckerberg Holdings V, LLC Class B Common Stock Class A Common Stock 40000000 40000000 I By Chan Zuckerberg Holdings VI, LLC Class B Common Stock Class A Common Stock 10000000 10000000 I By Chan Zuckerberg Holdings A LLC Shares held of record by CZI Holdings, LLC ("CZI"). Mark Zuckerberg, Trustee of the Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust"), is the sole member of CZI. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI. The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on January 31, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $775.00 to $775.965 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $776.00 to $776.99 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $777.02 to $778.005 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $778.03 to $778.99 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $779.08 to $779.80 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The sales reported were effected by Chan Zuckerberg Biohub, Inc. ("CZ Biohub") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on January 31, 2026. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $775.00 to $775.94 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Shares held of record by CZ Biohub. The reporting person is deemed to have sole voting and investment power over the shares held by CZ Biohub, but has no pecuniary interest in these shares. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $776.03 to $777.02 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $777.04 to $778.03 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $778.045 to $779.02 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $779.07 to $779.80 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1-for-1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date. Shares held of record by Mark Zuckerberg, Trustee of the 2006 Trust. Shares held of record by Chan Zuckerberg Holdings, LLC ("CZ Holdings"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings. Shares held of record by CZI Holdings I, LLC ("CZI I"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZI I. Shares held of record by Chan Zuckerberg Holdings II, LLC ("CZ Holdings II"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings II. Shares held of record by Chan Zuckerberg Holdings III, LLC ("CZ Holdings III"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings III. Shares held of record by CZ Management, LLC ("CZ Management"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Management. Shares held of record by Chan Zuckerberg Holdings IV, LLC ("CZ Holdings IV"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings IV. Shares held of record by Chan Zuckerberg Holdings V, LLC ("CZ Holdings V"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings V. Shares held of record by Chan Zuckerberg Holdings VI, LLC ("CZ Holdings VI"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings VI. Shares held of record by Chan Zuckerberg Holdings A LLC ("CZ Holdings A"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings A. /s/ Erin Guldiken, attorney-in-fact for Mark Zuckerberg 2026-09-28