META

SEC source: 0000950103-21-002521 · dp146340_4-zuckerberg0217.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 26,027

F2 · kind: The sales reported were effected by CZI pursuant to its Rule 10b5-1 trading plan.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $269.695 to $270.68 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.

F1 · ownership.nature: 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. 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: 0000950103-21-002521 · dp146340_4-zuckerberg0217.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 29,000

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.

F1 · ownership.nature: 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. 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: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · derivative · entry 22

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Mark Zuckerberg, Trustee Of The Mark Zuckerberg Trust Dated July 7, 2006

Disclosed balance after: 5,521,248

Underlying: Class A Common Stock · 5,049 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.

F25 · 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.

F25 · 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.

F25 · 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.

F25 · 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.

F17 · ownership.nature: Shares held of record by Mark Zuckerberg, Trustee of the 2006 Trust.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · derivative · entry 21

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 353,648,977

Underlying: Class A Common Stock · 30,578 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.

F25 · 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.

F25 · 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.

F25 · 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.

F25 · 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.

F1 · ownership.nature: 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. 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: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 20

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Mark Zuckerberg, Trustee Of The Mark Zuckerberg Trust Dated July 7, 2006

Disclosed balance after: 0

F18 · kind: The sales reported were effected by Mark Zuckerberg, Trustee of the 2006 Trust pursuant to its Rule 10b5-1 trading plan.

F24 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $275.545 to $276.33 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.

F17 · ownership.nature: Shares held of record by Mark Zuckerberg, Trustee of the 2006 Trust.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 19

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Mark Zuckerberg, Trustee Of The Mark Zuckerberg Trust Dated July 7, 2006

Disclosed balance after: 260

F18 · kind: The sales reported were effected by Mark Zuckerberg, Trustee of the 2006 Trust pursuant to its Rule 10b5-1 trading plan.

F23 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $274.54 to $275.39 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.

F17 · ownership.nature: Shares held of record by Mark Zuckerberg, Trustee of the 2006 Trust.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 18

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Mark Zuckerberg, Trustee Of The Mark Zuckerberg Trust Dated July 7, 2006

Disclosed balance after: 2,159

F18 · kind: The sales reported were effected by Mark Zuckerberg, Trustee of the 2006 Trust pursuant to its Rule 10b5-1 trading plan.

F22 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $273.53 to $274.52 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.

F17 · ownership.nature: Shares held of record by Mark Zuckerberg, Trustee of the 2006 Trust.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 17

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Mark Zuckerberg, Trustee Of The Mark Zuckerberg Trust Dated July 7, 2006

Disclosed balance after: 4,329

F18 · kind: The sales reported were effected by Mark Zuckerberg, Trustee of the 2006 Trust pursuant to its Rule 10b5-1 trading plan.

F21 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $272.44 to $273.26 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.

F17 · ownership.nature: Shares held of record by Mark Zuckerberg, Trustee of the 2006 Trust.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 16

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Mark Zuckerberg, Trustee Of The Mark Zuckerberg Trust Dated July 7, 2006

Disclosed balance after: 4,689

F18 · kind: The sales reported were effected by Mark Zuckerberg, Trustee of the 2006 Trust pursuant to its Rule 10b5-1 trading plan.

F20 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $271.30 to $272.15 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.

F17 · ownership.nature: Shares held of record by Mark Zuckerberg, Trustee of the 2006 Trust.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 15

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Mark Zuckerberg, Trustee Of The Mark Zuckerberg Trust Dated July 7, 2006

Disclosed balance after: 4,819

F18 · kind: The sales reported were effected by Mark Zuckerberg, Trustee of the 2006 Trust pursuant to its Rule 10b5-1 trading plan.

F19 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $270.30 to $271.13 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.

F17 · ownership.nature: Shares held of record by Mark Zuckerberg, Trustee of the 2006 Trust.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 14

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Mark Zuckerberg, Trustee Of The Mark Zuckerberg Trust Dated July 7, 2006

Disclosed balance after: 5,049

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.

F17 · ownership.nature: Shares held of record by Mark Zuckerberg, Trustee of the 2006 Trust.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 13

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 3,149,839

F9 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Initiative Foundation ("CZI Foundation"), formerly known as the Chan Zuckerberg Foundation, pursuant to its Rule 10b5-1 trading plan.

F16 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $275.56 to $276.555 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.

F11 · ownership.nature: Shares held of record by CZI Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZI Foundation, but has no pecuniary interest in these shares.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 12

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 3,150,519

F9 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Initiative Foundation ("CZI Foundation"), formerly known as the Chan Zuckerberg Foundation, pursuant to its Rule 10b5-1 trading plan.

F15 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $274.54 to $275.30 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.

F11 · ownership.nature: Shares held of record by CZI Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZI Foundation, but has no pecuniary interest in these shares.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 11

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 3,154,726

F9 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Initiative Foundation ("CZI Foundation"), formerly known as the Chan Zuckerberg Foundation, pursuant to its Rule 10b5-1 trading plan.

F14 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $273.53 to $274.52 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.

F11 · ownership.nature: Shares held of record by CZI Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZI Foundation, but has no pecuniary interest in these shares.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 10

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 3,160,056

F9 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Initiative Foundation ("CZI Foundation"), formerly known as the Chan Zuckerberg Foundation, pursuant to its Rule 10b5-1 trading plan.

F13 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $272.50 to $273.24 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.

F11 · ownership.nature: Shares held of record by CZI Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZI Foundation, but has no pecuniary interest in these shares.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 3,160,806

F9 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Initiative Foundation ("CZI Foundation"), formerly known as the Chan Zuckerberg Foundation, pursuant to its Rule 10b5-1 trading plan.

F12 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $271.45 to $272.39 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.

F11 · ownership.nature: Shares held of record by CZI Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZI Foundation, but has no pecuniary interest in these shares.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 3,161,156

F9 · kind: The sales reported were effected by Mark Zuckerberg, Trustee and Settlor of the Chan Zuckerberg Initiative Foundation ("CZI Foundation"), formerly known as the Chan Zuckerberg Foundation, pursuant to its Rule 10b5-1 trading plan.

F10 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $270.30 to $271.13 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.

F11 · ownership.nature: Shares held of record by CZI Foundation. The reporting person is deemed to have voting and investment power over the shares held by CZI Foundation, but has no pecuniary interest in these shares.

SEC source: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 7

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

F2 · kind: The sales reported were effected by CZI pursuant to its Rule 10b5-1 trading plan.

F8 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $275.57 to $276.32 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.

F1 · ownership.nature: 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. 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: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 1,600

F2 · kind: The sales reported were effected by CZI pursuant to its Rule 10b5-1 trading plan.

F7 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $274.57 to $275.435 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.

F1 · ownership.nature: 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. 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: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 12,157

F2 · kind: The sales reported were effected by CZI pursuant to its Rule 10b5-1 trading plan.

F6 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $273.57 to $274.56 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.

F1 · ownership.nature: 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. 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: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 26,461

F2 · kind: The sales reported were effected by CZI pursuant to its Rule 10b5-1 trading plan.

F5 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $272.57 to $273.56 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.

F1 · ownership.nature: 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. 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: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 28,278

F2 · kind: The sales reported were effected by CZI pursuant to its Rule 10b5-1 trading plan.

F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $271.57 to $272.56 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.

F1 · ownership.nature: 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. 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: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 29,478

F2 · kind: The sales reported were effected by CZI pursuant to its Rule 10b5-1 trading plan.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $270.23 to $271.13 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.

F1 · ownership.nature: 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. 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: 0000950103-21-002520 · dp146339_4-zuckerberg0216.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 30,578

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.

F1 · ownership.nature: 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. 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: 0000950103-21-002463 · dp146226_4-fischer.xml · derivative · entry 11

FISCHER DAVID B. · CIK 0001549078 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,111

Underlying: Class A Common Stock · 4,647 shares

Expires 2029-03-19

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.

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the issuer's Class A Common Stock upon settlement.

F7 · derivative.exercise_date: The RSUs vest quarterly as to 1/16th of the total shares, beginning on February 15, 2020, subject to continued service through each vesting date.

SEC source: 0000950103-21-002463 · dp146226_4-fischer.xml · derivative · entry 10

FISCHER DAVID B. · CIK 0001549078 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,372

Underlying: Class A Common Stock · 3,852 shares

Expires 2028-03-19

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.

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the issuer's Class A Common Stock upon settlement.

F6 · derivative.exercise_date: The RSUs vest quarterly as to 1/16th of the total shares, beginning on February 15, 2020, subject to continued service through each vesting date.

SEC source: 0000950103-21-002463 · dp146226_4-fischer.xml · derivative · entry 9

FISCHER DAVID B. · CIK 0001549078 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,418

Underlying: Class A Common Stock · 5,303 shares

Expires 2027-03-14

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.

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the issuer's Class A Common Stock upon settlement.

F5 · derivative.exercise_date: The RSUs vest quarterly as to 1/16th of the total shares, beginning on May 15, 2019, subject to continued service through each vesting date.

SEC source: 0000950103-21-002463 · dp146226_4-fischer.xml · derivative · entry 8

FISCHER DAVID B. · CIK 0001549078 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,271

Underlying: Class A Common Stock · 6,324 shares

Expires 2026-03-14

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.

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the issuer's Class A Common Stock upon settlement.

F4 · derivative.exercise_date: The RSUs vest quarterly as to 1/16th of the total shares, beginning on February 15, 2019, subject to continued service through each vesting date.

SEC source: 0000950103-21-002463 · dp146226_4-fischer.xml · derivative · entry 7

FISCHER DAVID B. · CIK 0001549078 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 6,191 shares

Expires 2025-03-15

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.

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the issuer's Class A Common Stock upon settlement.

F3 · derivative.exercise_date: The RSUs vest quarterly as to 1/16th of the total shares, beginning on May 15, 2017, subject to continued service through each vesting date.

SEC source: 0000950103-21-002463 · dp146226_4-fischer.xml · nonDerivative · entry 6

FISCHER DAVID B. · CIK 0001549078 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,732

F1 · shares: Represents the number of shares of Class A Common Stock that have been withheld by the issuer to satisfy its income tax withholding and remittance obligations in connection with the net settlement of the Restricted Stock Units ("RSUs") and does not represent a sale.

SEC source: 0000950103-21-002463 · dp146226_4-fischer.xml · nonDerivative · entry 5

FISCHER DAVID B. · CIK 0001549078 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,479

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.

SEC source: 0000950103-21-002463 · dp146226_4-fischer.xml · nonDerivative · entry 4

FISCHER DAVID B. · CIK 0001549078 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,832

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.

SEC source: 0000950103-21-002463 · dp146226_4-fischer.xml · nonDerivative · entry 3

FISCHER DAVID B. · CIK 0001549078 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,980

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.

SEC source: 0000950103-21-002463 · dp146226_4-fischer.xml · nonDerivative · entry 2

FISCHER DAVID B. · CIK 0001549078 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,677

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.

SEC source: 0000950103-21-002463 · dp146226_4-fischer.xml · nonDerivative · entry 1

FISCHER DAVID B. · CIK 0001549078 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,353

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.

SEC source: 0000950103-21-002464 · dp146227_4-houston.xml · derivative · entry 2

Houston Andrew · CIK 0001734563 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,462

Underlying: Class A Common Stock · 289 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.

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement.

F3 · derivative.exercise_date: The RSUs vest as to 1/8th of the total shares on August 15, 2020 and then an additional 1/16th of the total shares vest quarterly thereafter, subject to continued service through each vesting date.

F3 · derivative.expiration_date: The RSUs vest as to 1/8th of the total shares on August 15, 2020 and then an additional 1/16th of the total shares vest quarterly thereafter, subject to continued service through each vesting date.

SEC source: 0000950103-21-002464 · dp146227_4-houston.xml · nonDerivative · entry 1

Houston Andrew · CIK 0001734563 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,545

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.

F1 · shares: Represents the number of shares that were acquired in connection with the settlement of the Restricted Stock Units ("RSUs") listed in Table II.

SEC source: 0000950103-21-002465 · dp146228_4-killefer.xml · derivative · entry 2

Killefer Nancy · CIK 0001584637 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,917

Underlying: Class A Common Stock · 301 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.

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement.

F3 · derivative.exercise_date: The RSUs vest quarterly as to 1/16th of the total RSUs, beginning on August 15, 2020, subject to continued service through each vesting date.

F3 · derivative.expiration_date: The RSUs vest quarterly as to 1/16th of the total RSUs, beginning on August 15, 2020, subject to continued service through each vesting date.

SEC source: 0000950103-21-002465 · dp146228_4-killefer.xml · nonDerivative · entry 1

Killefer Nancy · CIK 0001584637 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,173

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.

F1 · shares: Represents the number of shares that were acquired in connection with the settlement of the Restricted Stock Units ("RSUs") listed in Table II.

SEC source: 0000950103-21-002466 · dp146229_4-kimmitt.xml · derivative · entry 2

KIMMITT ROBERT M · CIK 0001181218 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,917

Underlying: Class A Common Stock · 301 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.

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement.

F3 · derivative.exercise_date: The RSUs vest quarterly as to 1/16th of the total RSUs, beginning on August 15, 2020, subject to continued service through each vesting date.

F3 · derivative.expiration_date: The RSUs vest quarterly as to 1/16th of the total RSUs, beginning on August 15, 2020, subject to continued service through each vesting date.

SEC source: 0000950103-21-002466 · dp146229_4-kimmitt.xml · nonDerivative · entry 1

KIMMITT ROBERT M · CIK 0001181218 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,106

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.

F1 · shares: Represents the number of shares that were acquired in connection with the settlement of the Restricted Stock Units ("RSUs") listed in Table II.

SEC source: 0000950103-21-002468 · dp146230_4-newstead.xml · derivative · entry 5

Newstead Jennifer · CIK 0001780525 · VP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,991

Underlying: Class A Common Stock · 2,999 shares

Expires 2030-03-19

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.

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the issuer's Class A Common Stock upon settlement.

F4 · derivative.exercise_date: The RSUs vest quarterly as to 1/16th of the total shares, beginning on May 15, 2020, subject to continued service through each vesting date.

SEC source: 0000950103-21-002468 · dp146230_4-newstead.xml · derivative · entry 4

Newstead Jennifer · CIK 0001780525 · VP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,703

Underlying: Class A Common Stock · 5,038 shares

Expires 2029-07-21

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.

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the issuer's Class A Common Stock upon settlement.

F3 · derivative.exercise_date: The RSUs vested as to 1/12th of the total shares on November 15, 2019, and then 1/16th of the total shares vest quarterly thereafter, not to exceed 14 quarterly installments, with the final 2/48ths of the total shares vesting on August 15, 2023, subject to continued service through each vesting date.

SEC source: 0000950103-21-002468 · dp146230_4-newstead.xml · nonDerivative · entry 3

Newstead Jennifer · CIK 0001780525 · VP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,601

F1 · shares: Represents the number of shares of Class A Common Stock that have been withheld by the issuer to satisfy its income tax withholding and remittance obligations in connection with the net settlement of the Restricted Stock Units ("RSUs") and does not represent a sale.

SEC source: 0000950103-21-002468 · dp146230_4-newstead.xml · nonDerivative · entry 2

Newstead Jennifer · CIK 0001780525 · VP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,037

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.

SEC source: 0000950103-21-002468 · dp146230_4-newstead.xml · nonDerivative · entry 1

Newstead Jennifer · CIK 0001780525 · VP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,038

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.

SEC source: 0000950103-21-002469 · dp146231_4-sandberg.xml · derivative · entry 11

Sandberg Sheryl · CIK 0001366010 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,475

Underlying: Class A Common Stock · 7,434 shares

Expires 2029-03-19

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.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the issuer's Class A Common Stock upon settlement.

F8 · derivative.exercise_date: The RSUs vest quarterly as to 1/16th of the total shares, beginning on May 15, 2019, subject to continued service through each vesting date.

SEC source: 0000950103-21-002469 · dp146231_4-sandberg.xml · derivative · entry 10

Sandberg Sheryl · CIK 0001366010 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,631

Underlying: Class A Common Stock · 6,848 shares

Expires 2028-03-19

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.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the issuer's Class A Common Stock upon settlement.

F7 · derivative.exercise_date: The RSUs vest quarterly as to 1/16th of the total shares, beginning on August 15, 2019, subject to continued service through each vesting date.

SEC source: 0000950103-21-002469 · dp146231_4-sandberg.xml · derivative · entry 9

Sandberg Sheryl · CIK 0001366010 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,984

Underlying: Class A Common Stock · 9,426 shares

Expires 2027-03-14

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.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the issuer's Class A Common Stock upon settlement.

F6 · derivative.exercise_date: The RSUs vest quarterly as to 1/16th of the total shares, beginning on February 15, 2019, subject to continued service through each vesting date.

SEC source: 0000950103-21-002469 · dp146231_4-sandberg.xml · derivative · entry 8

Sandberg Sheryl · CIK 0001366010 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 101,189

Underlying: Class A Common Stock · 11,243 shares

Expires 2026-03-14

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.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive 1 share of the issuer's Class A Common Stock upon settlement.

F5 · derivative.exercise_date: The RSUs vest quarterly as to 1/16th of the total shares, beginning on August 15, 2019, subject to continued service through each vesting date.