META

SEC source: 0000950103-25-000728 · dp223669_4-zuckerberg0116.xml · nonDerivative · entry 10

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 346,745

F9 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F13 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $612.02 to $613.01 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: 0000950103-25-000728 · dp223669_4-zuckerberg0116.xml · nonDerivative · entry 9

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 349,505

F9 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F12 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $611.02 to $612.01 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: 0000950103-25-000728 · dp223669_4-zuckerberg0116.xml · nonDerivative · entry 8

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 352,899

F9 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F10 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $610.00 to $610.98 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: 0000950103-25-000728 · dp223669_4-zuckerberg0116.xml · nonDerivative · entry 7

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 0

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F8 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $615.20 to $615.92 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000728 · dp223669_4-zuckerberg0116.xml · nonDerivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 1,295

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F7 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $614.15 to $615.00 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000728 · dp223669_4-zuckerberg0116.xml · nonDerivative · entry 5

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 5,534

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F6 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $613.04 to $614.02 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000728 · dp223669_4-zuckerberg0116.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 10,771

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F5 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $612.01 to $612.98 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000728 · dp223669_4-zuckerberg0116.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 16,001

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $611.01 to $612.00 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000728 · dp223669_4-zuckerberg0116.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 21,425

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $610.00 to $610.98 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000728 · dp223669_4-zuckerberg0116.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 22,946

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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · derivative · entry 30

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 193,502,146

Underlying: Class A Common Stock · 22,946 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.

F32 · 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.

F32 · 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.

F32 · 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.

F32 · 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 29

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 353,696

F17 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F31 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $621.00 to $621.865 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.

F19 · 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: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 28

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 354,588

F17 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F30 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $619.89 to $620.88 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.

F19 · 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: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 27

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 355,906

F17 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F29 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $618.81 to $619.77 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.

F19 · 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: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 26

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 357,859

F17 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F28 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $617.73 to $618.14 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.

F19 · 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: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 25

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 358,055

F17 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F27 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $616.69 to $617.58 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.

F19 · 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: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 24

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 359,806

F17 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F26 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $615.69 to $616.51 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.

F19 · 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: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 23

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 361,705

F17 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F25 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $614.69 to $615.545 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.

F19 · 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: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 22

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 362,994

F17 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F24 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $613.60 to $614.57 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.

F19 · 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: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 21

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 364,228

F17 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F23 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $612.57 to $613.40 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.

F19 · 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: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 20

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 364,620

F17 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F22 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $611.22 to $611.94 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F19 · 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: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 19

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 365,325

F17 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F21 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $610.00 to $610.35 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.

F19 · 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: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 18

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 365,621

F17 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F20 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $608.50 to $609.34 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.

F19 · 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: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 17

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 366,349

F17 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F18 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $607.27 to $607.69 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.

F19 · 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: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 16

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 0

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 15

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 180

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F16 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $620.69 to $621.6725 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 14

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 2,658

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F15 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $619.575 to $620.56 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 13

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 5,126

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F14 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $618.53 to $619.51 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 12

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 7,257

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F13 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $617.49 to $618.32 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 11

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 7,946

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F12 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $616.465 to $617.46 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 10

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 11,705

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F11 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $615.455 to $616.44 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 9

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 14,291

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F10 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $614.43 to $615.38 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 8

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 16,708

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F9 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $613.36 to $614.32 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 7

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 18,841

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F8 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $612.13 to $613.00 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 19,540

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F7 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $611.025 to $611.90 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 5

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 20,610

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F6 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $610.00 to $610.725 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 20,800

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F5 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $609.00 to $609.59 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 21,765

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $608.00 to $608.79 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 22,556

F2 · kind: The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $607.00 to $607.98 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000550 · dp223505_4-zuckerberg0115.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 22,946

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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000662 · dp223418_4-songhurst.xml · derivative · entry 2

Songhurst Charles · CIK 0002051627 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,752

Underlying: Class A Common Stock · 1,752 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("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 May 15, 2025, 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 May 15, 2025, subject to continued service through each vesting date.

SEC source: 0000950103-25-000662 · dp223418_4-songhurst.xml · derivative · entry 1

Songhurst Charles · CIK 0002051627 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 247

Underlying: Class A Common Stock · 247 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement.

F2 · derivative.exercise_date: The RSUs vest as to 100% of the total RSUs on May 15, 2025, subject to continued service through such date.

F2 · derivative.expiration_date: The RSUs vest as to 100% of the total RSUs on May 15, 2025, subject to continued service through such date.

SEC source: 0000950103-25-000663 · dp223419_4-white.xml · derivative · entry 2

White Dana · CIK 0002051628 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,752

Underlying: Class A Common Stock · 1,752 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("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 May 15, 2025, 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 May 15, 2025, subject to continued service through each vesting date.

SEC source: 0000950103-25-000663 · dp223419_4-white.xml · derivative · entry 1

White Dana · CIK 0002051628 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 247

Underlying: Class A Common Stock · 247 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement.

F2 · derivative.exercise_date: The RSUs vest as to 100% of the total RSUs on May 15, 2025, subject to continued service through such date.

F2 · derivative.expiration_date: The RSUs vest as to 100% of the total RSUs on May 15, 2025, subject to continued service through such date.

SEC source: 0000950103-25-000664 · dp223417_4-elkann.xml · derivative · entry 2

Elkann John · CIK 0001579992 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,752

Underlying: Class A Common Stock · 1,752 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("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 May 15, 2025, 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 May 15, 2025, subject to continued service through each vesting date.

SEC source: 0000950103-25-000664 · dp223417_4-elkann.xml · derivative · entry 1

Elkann John · CIK 0001579992 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 247

Underlying: Class A Common Stock · 247 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Class A Common Stock upon settlement.

F2 · derivative.exercise_date: The RSUs vest as to 100% of the total RSUs on May 15, 2025, subject to continued service through such date.

F2 · derivative.expiration_date: The RSUs vest as to 100% of the total RSUs on May 15, 2025, subject to continued service through such date.

SEC source: 0000950103-25-000549 · dp223452_4-zuckerberg0114.xml · derivative · entry 11

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

10b5-1 filing: Plan reported

Ownership: Indirect · By CZI Holdings, LLC

Disclosed balance after: 193,525,092

Underlying: Class A Common Stock · 2,790 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.

F13 · 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.

F13 · 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.

F13 · 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.

F13 · 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. The reporting person is the sole trustee of the 2006 Trust and, therefore, is deemed to have sole voting and investment power over the securities held by CZI.

SEC source: 0000950103-25-000549 · dp223452_4-zuckerberg0114.xml · nonDerivative · entry 10

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 366,671

F8 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F10 · 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: 0000950103-25-000549 · dp223452_4-zuckerberg0114.xml · nonDerivative · entry 9

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 366,751

F8 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F12 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $603.56 to $604.00 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.

F10 · 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: 0000950103-25-000549 · dp223452_4-zuckerberg0114.xml · nonDerivative · entry 8

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Chan Zuckerberg Initiative Foundation

Disclosed balance after: 366,943

F8 · kind: The sales reported were effected by the Chan Zuckerberg Initiative Foundation ("CZI Foundation") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on August 9, 2024.

F11 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $601.56 to $602.54 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.

F10 · 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.