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FilingsForm 4

Mark Zuckerberg's Form 4: CZI Holdings and Chan Zuckerberg Biohub sold $21.4 million of Meta shares

From the public record1 min read

Published Filed
Value$21.36 million, held indirectly
Shares27,474, held indirectly
Average price$777.44
FiledSep 28

Written by Claude Sonnet 5.5, an AI model, from public records. Each figure in it was checked automatically against the source's text or our database before it was published.

A Form 4, the form an insider files when trading the company's shares, showed that CZI Holdings, LLC sold 17,140 Meta shares and Chan Zuckerberg Biohub, Inc. sold 10,334 on Sep 24, 2026, 27,474 shares in all for $21,359,454 at an average of $777.44 a share. Mark Zuckerberg was the reporting person, filing as a director, an officer (COB and CEO) and an owner of more than 10% of Meta's shares; the footnotes said he was deemed to have sole voting and investment power over the shares both entities held and had no pecuniary interest in the Biohub shares. The footnotes said both entities sold under a Rule 10b5-1 trading plan adopted by Zuckerberg on Jan 31, 2026, and the form also showed CZI Holdings converting 17,140 Class B shares into Class A shares on Sep 24, 2026. The Form 4 was filed on Sep 28, 2026 and is on SEC EDGAR.123456789101112131415161718

How each figure was checked18 facts
  1. the sale lines by who held the sharesthe sale lines of this form, by who held the shares: By CZI Holdings, LLC (held indirectly): 17140 shares for 13325346.6499 USD; By Chan Zuckerberg Biohub, Inc. (held indirectly): 10334 shares for 8034107.5539 USDOur database
  2. shares in the sale lines27,474Our database
  3. value of the sale lines$21.36 millionOur database
  4. average price of the sale lines$777.44Our database
  5. the side of the tradessaleOur database
  6. first day of the tradesSep 24, 2026Our database
  7. last day of the tradesSep 24, 2026Our database
  8. the reporting owner as the form names himMark Zuckerberg (filed as Zuckerberg Mark)Our database
  9. his role at the companydirector, officer (COB and CEO) and owner of more than 10% of the sharesOur database
  10. footnote F1: voting and investment power over the shares CZI Holdings holdsFootnotes and remarks of the Form 4 on SEC EDGAR ↗
  11. footnote F10: voting power over the shares Biohub holds, and no pecuniary interestFootnotes and remarks of the Form 4 on SEC EDGAR ↗
  12. footnote F2: the Rule 10b5-1 plan of the CZI Holdings sales and its adoption dateJanuary 31, 2026Footnotes and remarks of the Form 4 on SEC EDGAR ↗
  13. footnote F8: the Rule 10b5-1 plan of the Biohub sales and its adoption dateJanuary 31, 2026Footnotes and remarks of the Form 4 on SEC EDGAR ↗
  14. line 1: the conversion that gave CZI Holdings Class A sharesconversion of a derivative security (code C): 17,140 shares acquired on Sep 24, 2026 at $0 per share; held indirectly (By CZI Holdings, LLC); 17,140 owned after the lineOur database
  15. derivative line 1: the matching conversion of Class B sharesderivative line, conversion of a derivative security (code C): 17,140 shares disposed on Sep 24, 2026 at $0 per share; held indirectly (By CZI Holdings, LLC); 100,102,127 owned after the lineOur database
  16. the Class B shares owned after the conversion100,102,127 shares of Class B Common Stock owned after this line, held indirectly (By CZI Holdings, LLC)Our database
  17. footnote F15: Class B converts into Class A1Footnotes and remarks of the Form 4 on SEC EDGAR ↗
  18. the day the Form 4 was filedSep 28, 2026Our database

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The record

Issuer
Meta (CIK 1326801, filed as Meta Platforms, Inc.)
Form
4
Accession
0000950103-26-014647
Filed
Sep 28, 2026
Period of report
Sep 24, 2026
Reporting owner
Mark Zuckerberg (CIK 1548760, filed as Zuckerberg Mark)
Relationship
director, officer (COB and CEO) and owner of more than 10% of the shares
Rule 10b5-1 checkbox
Ticked
Line 1
C (conversion of a derivative security) · 17,140 Class A Common Stock at $0.00 · Sep 24, 2026 · acquired, indirectly, By CZI Holdings, LLC · 17,140 held after · footnote F1
Line 2
S (sale) · 2,093 Class A Common Stock at $775.3906 · Sep 24, 2026 · disposed, indirectly, By CZI Holdings, LLC · 15,047 held after · footnotes F1, F2 and F3
Line 3
S (sale) · 2,516 Class A Common Stock at $776.5564 · Sep 24, 2026 · disposed, indirectly, By CZI Holdings, LLC · 12,531 held after · footnotes F1, F2 and F4
Line 4
S (sale) · 7,607 Class A Common Stock at $777.6303 · Sep 24, 2026 · disposed, indirectly, By CZI Holdings, LLC · 4,924 held after · footnotes F1, F2 and F5
Line 5
S (sale) · 4,324 Class A Common Stock at $778.3554 · Sep 24, 2026 · disposed, indirectly, By CZI Holdings, LLC · 600 held after · footnotes F1, F2 and F6
Line 6
S (sale) · 600 Class A Common Stock at $779.3263 · Sep 24, 2026 · disposed, indirectly, By CZI Holdings, LLC · 0 held after · footnotes F1, F2 and F7
Line 7
S (sale) · 1,133 Class A Common Stock at $775.3185 · Sep 24, 2026 · disposed, indirectly, By Chan Zuckerberg Biohub, Inc. · 1,229,904 held after · footnotes F8, F9 and F10
Line 8
S (sale) · 1,769 Class A Common Stock at $776.5624 · Sep 24, 2026 · disposed, indirectly, By Chan Zuckerberg Biohub, Inc. · 1,228,135 held after · footnotes F8, F10 and F11
Line 9
S (sale) · 4,810 Class A Common Stock at $777.6616 · Sep 24, 2026 · disposed, indirectly, By Chan Zuckerberg Biohub, Inc. · 1,223,325 held after · footnotes F8, F10 and F12
Line 10
S (sale) · 2,146 Class A Common Stock at $778.3993 · Sep 24, 2026 · disposed, indirectly, By Chan Zuckerberg Biohub, Inc. · 1,221,179 held after · footnotes F8, F10 and F13
Line 11
S (sale) · 476 Class A Common Stock at $779.2765 · Sep 24, 2026 · disposed, indirectly, By Chan Zuckerberg Biohub, Inc. · 1,220,703 held after · footnotes F8, F10 and F14
Derivative line 1
C (conversion of a derivative security) · 17,140 Class B Common Stock at $0.00 · Sep 24, 2026 · disposed, indirectly, By CZI Holdings, LLC · 100,102,127 held after · footnotes F1 and F15
Footnote F1
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.
Footnote F2
The sales reported were effected by CZI pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on January 31, 2026.
Footnote F3
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $775.00 to $775.965 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Footnote F4
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $776.00 to $776.99 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Footnote F5
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $777.02 to $778.005 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Footnote F6
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $778.03 to $778.99 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Footnote F7
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $779.08 to $779.80 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Footnote F8
The sales reported were effected by Chan Zuckerberg Biohub, Inc. ("CZ Biohub") pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on January 31, 2026.
Footnote F9
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $775.00 to $775.94 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Footnote F10
Shares held of record by CZ Biohub. The reporting person is deemed to have sole voting and investment power over the shares held by CZ Biohub, but has no pecuniary interest in these shares.
Footnote F11
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $776.03 to $777.02 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Footnote F12
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $777.04 to $778.03 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Footnote F13
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $778.045 to $779.02 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Footnote F14
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $779.07 to $779.80 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Footnote F15
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.
Footnote F16
Shares held of record by Mark Zuckerberg, Trustee of the 2006 Trust.
Footnote F17
Shares held of record by Chan Zuckerberg Holdings, LLC ("CZ Holdings"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings.
Footnote F18
Shares held of record by CZI Holdings I, LLC ("CZI I"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZI I.
Footnote F19
Shares held of record by Chan Zuckerberg Holdings II, LLC ("CZ Holdings II"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings II.
Footnote F20
Shares held of record by Chan Zuckerberg Holdings III, LLC ("CZ Holdings III"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings III.
Footnote F21
Shares held of record by CZ Management, LLC ("CZ Management"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Management.
Footnote F22
Shares held of record by Chan Zuckerberg Holdings IV, LLC ("CZ Holdings IV"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings IV.
Footnote F23
Shares held of record by Chan Zuckerberg Holdings V, LLC ("CZ Holdings V"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings V.
Footnote F24
Shares held of record by Chan Zuckerberg Holdings VI, LLC ("CZ Holdings VI"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings VI.
Footnote F25
Shares held of record by Chan Zuckerberg Holdings A LLC ("CZ Holdings A"), which is beneficially owned by the reporting person. The reporting person is deemed to have sole voting and investment power over the securities held by CZ Holdings A.
Open the source ↗

Insider purchases and sales of Meta shares, 12 months

Total$242.16 million sold
Susan J. Li · sold, held indirectly$94.63 million
Christopher K. Cox · sold, held indirectly$55.02 million
Javier Olivan · sold$23.05 million
Mark Zuckerberg · sold, held indirectly$21.36 million
Andrew Bosworth · sold$21.19 million
Javier Olivan · sold, held indirectly$12.59 million
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Revenue$200.97 billionYear to Dec 31, 2025 · +22.17% year over year
Operating income$83.28 billionYear to Dec 31, 2025 · +20.03% year over year
Net income$60.46 billionYear to Dec 31, 2025 · −3.05% year over year

Source: SEC EDGAR XBRL financial data · filed Oct 22, 2026

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  1. SEC EDGAR, Form 4 filed Sep 28, 2026
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