META

SEC source: 0001127602-18-012984 · form4.xml · nonDerivative · entry 7

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,882,831

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F9 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $155.57 to $156.55 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012984 · form4.xml · nonDerivative · entry 6

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,893,231

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F8 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $154.57 to $155.50 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012984 · form4.xml · nonDerivative · entry 5

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,900,331

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F7 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $153.56 to $154.50 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012984 · form4.xml · nonDerivative · entry 4

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,903,131

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F6 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $152.34 to $153.15 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012984 · form4.xml · nonDerivative · entry 3

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,904,834

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F5 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $151.31 to $152.30 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012984 · form4.xml · nonDerivative · entry 2

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,905,834

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $150.26 to $151.23 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012984 · form4.xml · nonDerivative · entry 1

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,908,074

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $149.24 to $150.06 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0000950103-20-002775 · dp121426_5-schroepfer1.xml · nonDerivative · entry 15

Schroepfer Michael Todd · CIK 0001509441 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · The HS Trust U/A/D 9/28/2011

Disclosed balance after: 421,990

F1 · kind: A third-party investment advisor retained by the reporting person carried out these transactions in its sole discretion without direction or knowledge from the reporting person or his spouse. The advisor recently brought the transactions to the attention of Facebook, Inc. ("Issuer") and the reporting person. Such transactions may be subject to Section 16(b) under the Securities Exchange Act of 1934, as amended, and therefore the reporting person paid $80,848.16 to Issuer as disgorgement of the maximum amount of the profit realized in connection with such transactions, regardless of whether such disgorgement would have actually been required by law.

F2 · kind: The shares reported in these transactions are held by trusts, for which the reporting person and his spouse serve as trustees, in separate accounts managed by the third-party investment advisor. The reporting person disclaims beneficial ownership of the shares held by the trusts, except to the extent of his pecuniary interest therein.

F4 · ownership.nature: Shares held of record by Michael Schroepfer and Erin Hoffmann, Co-Trustees of The HS Trust U/A/D 9/28/2011.

SEC source: 0001127602-18-012707 · form4.xml · derivative · entry 20

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 385,547,923

Underlying: Class A Common Stock · 108,750 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F22 · security: 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.

F22 · derivative.exercise_price: 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.

F22 · derivative.exercise_date: 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.

F22 · derivative.expiration_date: 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.

F11 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 17

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 0

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F19 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.67 to $166.78 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.

F11 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 16

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 1,583

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F18 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.56 to $166.55 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.

F11 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 15

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 6,583

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F17 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.56 to $165.51 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.

F11 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 14

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 36,015

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F16 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.55 to $164.53 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.

F11 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 13

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 60,614

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F15 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.54 to $163.51 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.

F11 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 12

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 74,121

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F14 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $161.54 to $162.53 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.

F11 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 11

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 86,459

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F13 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $160.24 to $161.20 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.

F11 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 10

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 93,361

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F12 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $159.23 to $160.22 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.

F11 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 9

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 108,750

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F11 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 8

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,908,774

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F10 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.43 to $166.73 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 7

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,910,274

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F9 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.27 to $166.24 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 6

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,913,973

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F8 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.26 to $165.25 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 5

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,923,673

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F7 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.23 to $164.22 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 4

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,930,755

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F6 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.22 to $163.20 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 3

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,934,872

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F5 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $161.18 to $162.15 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 2

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,938,172

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $160.15 to $161.13 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012707 · form4.xml · nonDerivative · entry 1

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,940,972

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $159.15 to $160.12 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · derivative · entry 25

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 385,656,673

Underlying: Class A Common Stock · 108,750 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F28 · security: 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.

F28 · derivative.exercise_price: 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.

F28 · derivative.exercise_date: 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.

F28 · derivative.expiration_date: 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.

F10 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 22

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Advocacy

Disclosed balance after: 0

F18 · kind: The sales reported were effected by Chan Zuckerberg Advocacy pursuant to its Rule 10b5-1 trading plan. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F20 · ownership.nature: Shares held of record by Chan Zuckerberg Advocacy. The reporting person is deemed to have voting and investment power over the shares held by Chan Zuckerberg Advocacy, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 21

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Advocacy

Disclosed balance after: 100

F18 · kind: The sales reported were effected by Chan Zuckerberg Advocacy pursuant to its Rule 10b5-1 trading plan. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F25 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.04 to $169.94 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.

F20 · ownership.nature: Shares held of record by Chan Zuckerberg Advocacy. The reporting person is deemed to have voting and investment power over the shares held by Chan Zuckerberg Advocacy, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 20

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Advocacy

Disclosed balance after: 500

F18 · kind: The sales reported were effected by Chan Zuckerberg Advocacy pursuant to its Rule 10b5-1 trading plan. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F24 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.85 to $168.78 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.

F20 · ownership.nature: Shares held of record by Chan Zuckerberg Advocacy. The reporting person is deemed to have voting and investment power over the shares held by Chan Zuckerberg Advocacy, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 19

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Advocacy

Disclosed balance after: 1,100

F18 · kind: The sales reported were effected by Chan Zuckerberg Advocacy pursuant to its Rule 10b5-1 trading plan. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F23 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.83 to $167.78 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.

F20 · ownership.nature: Shares held of record by Chan Zuckerberg Advocacy. The reporting person is deemed to have voting and investment power over the shares held by Chan Zuckerberg Advocacy, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 18

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Advocacy

Disclosed balance after: 2,800

F18 · kind: The sales reported were effected by Chan Zuckerberg Advocacy pursuant to its Rule 10b5-1 trading plan. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F22 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.81 to $166.79 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.

F20 · ownership.nature: Shares held of record by Chan Zuckerberg Advocacy. The reporting person is deemed to have voting and investment power over the shares held by Chan Zuckerberg Advocacy, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 17

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Advocacy

Disclosed balance after: 5,700

F18 · kind: The sales reported were effected by Chan Zuckerberg Advocacy pursuant to its Rule 10b5-1 trading plan. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F21 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.80 to $165.77 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.

F20 · ownership.nature: Shares held of record by Chan Zuckerberg Advocacy. The reporting person is deemed to have voting and investment power over the shares held by Chan Zuckerberg Advocacy, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 16

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Advocacy

Disclosed balance after: 7,400

F18 · kind: The sales reported were effected by Chan Zuckerberg Advocacy pursuant to its Rule 10b5-1 trading plan. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F19 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.80 to $164.77 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.

F20 · ownership.nature: Shares held of record by Chan Zuckerberg Advocacy. The reporting person is deemed to have voting and investment power over the shares held by Chan Zuckerberg Advocacy, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 15

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 0

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F17 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.91 to $170.19 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.

F10 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 14

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 1,800

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F16 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.89 to $169.84 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.

F10 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 13

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 9,100

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F15 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.88 to $168.87 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.

F10 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 12

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 16,778

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F14 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.86 to $167.85 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.

F10 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 11

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 40,244

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F13 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.86 to $166.85 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.

F10 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 10

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 75,240

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F12 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.86 to $165.85 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.

F10 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 9

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 103,750

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F11 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.86 to $164.85 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.

F10 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 8

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 108,750

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F10 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 7

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,945,024

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F9 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.11 to $170.14 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 6

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,945,324

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F8 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.97 to $169.92 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 5

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,947,624

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F7 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.94 to $168.90 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 4

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,950,024

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F6 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.90 to $167.88 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 3

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,957,056

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F5 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.90 to $166.89 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 2

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,969,461

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.87 to $165.82 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012706 · form4.xml · nonDerivative · entry 1

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Foundation

Disclosed balance after: 7,979,474

F1 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Foundation ("CZ Foundation") and CZI Holdings, LLC ("CZI"), as applicable, pursuant to their Rule 10b5-1 trading plans. These sales are part of the plan Mr. Zuckerberg announced in September 2017 to sell 35 million to 75 million Facebook shares over approximately 18 months from the date of that announcement in order to fund the philanthropic initiatives of Mr. Zuckerberg and his wife, Priscilla Chan, in education, science and advocacy.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.84 to $164.73 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.

F3 · ownership.nature: Shares held of record by CZ Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZ Foundation, but has no pecuniary interest in these shares.

SEC source: 0001127602-18-012704 · form4.xml · derivative · entry 26

Zuckerberg Mark · CIK 0001548760 · Director · COB and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 385,765,423

Underlying: Class A Common Stock · 108,750 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F30 · security: 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.

F30 · derivative.exercise_price: 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.

F30 · derivative.exercise_date: 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.

F30 · derivative.expiration_date: 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.

F13 · ownership.nature: Shares held of record by CZI. Mark Zuckerberg, Trustee of The Mark Zuckerberg Trust dated July 7, 2006 ("2006 Trust") is the sole member of CZI. Mr. Zuckerberg 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.