X0306 4 2018-03-27 0001326801 Facebook Inc FB 0001548760 Zuckerberg Mark C/O FACEBOOK, INC. 1601 WILLOW ROAD MENLO PARK CA 94025 1 1 1 COB and CEO Class A Common Stock 2018-03-27 4 S 0 400 162.135 D 450066 I By Mark Zuckerberg, Trustee Of The Mark Zuckerberg 2014 GRAT No. 2 Dated 5/8/2014 Class A Common Stock 2018-03-27 4 S 0 1100 155.3255 D 545665 I By Mark Zuckerberg, Trustee Of The Mark Zuckerberg 2014 GRAT No. 3 Dated 5/8/2014 Class A Common Stock 2018-03-27 4 S 0 1100 156.365 D 544565 I By Mark Zuckerberg, Trustee Of The Mark Zuckerberg 2014 GRAT No. 3 Dated 5/8/2014 Class A Common Stock 2018-03-27 4 S 0 700 157.8657 D 543865 I By Mark Zuckerberg, Trustee Of The Mark Zuckerberg 2014 GRAT No. 3 Dated 5/8/2014 Class A Common Stock 2018-03-27 4 S 0 1601 158.8157 D 542264 I By Mark Zuckerberg, Trustee Of The Mark Zuckerberg 2014 GRAT No. 3 Dated 5/8/2014 Class A Common Stock 2018-03-27 4 S 0 900 159.7511 D 541364 I By Mark Zuckerberg, Trustee Of The Mark Zuckerberg 2014 GRAT No. 3 Dated 5/8/2014 Class A Common Stock 2018-03-27 4 S 0 1233 160.9624 D 540131 I By Mark Zuckerberg, Trustee Of The Mark Zuckerberg 2014 GRAT No. 3 Dated 5/8/2014 Class A Common Stock 2018-03-27 4 S 0 400 162.21 D 539731 I By Mark Zuckerberg, Trustee Of The Mark Zuckerberg 2014 GRAT No. 3 Dated 5/8/2014 The sales reported were effected by Mark Zuckerberg, Trustee of The Mark Zuckerberg 2014 GRAT No. 2, dated 5/8/2014 and Mark Zuckerberg, Trustee of The Mark Zuckerberg 2014 GRAT No. 3, dated 5/8/2014, as applicable, pursuant to their Rule 10b5-1 trading plans. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $161.79 to $162.56 per share, inclusive. 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 Mark Zuckerberg, Trustee of The Mark Zuckerberg 2014 GRAT No. 2, dated 5/8/2014. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $155.00 to $155.94 per share, inclusive. 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 Mark Zuckerberg, Trustee of The Mark Zuckerberg 2014 GRAT No. 3, dated 5/8/2014. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $156.03 to $156.80 per share, inclusive. 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 $157.16 to $158.15 per share, inclusive. 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 $158.20 to $159.19 per share, inclusive. 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 $159.41 to $160.21 per share, inclusive. 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 $160.60 to $161.26 per share, inclusive. 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 $161.90 to $162.58 per share, inclusive. 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. Two of two Forms 4 being filed to report transactions occurring on March 27, 2018. The holdings for the Chan Zuckerberg Foundation, CZI Holdings, LLC, and The Mark Zuckerberg Trust dated July 7, 2006 are reported on Form 1 of 2. /s/ Michael Johnson as attorney-in-fact for Mark Zuckerberg 2018-03-28