Meta’s Mark Zuckerberg shifts 591,690 shares to Biohub
Meta Platforms insider Mark Zuckerberg, through entities he controls, completed a conversion and charitable transfer on July 31, 2026.
Rhea-AI Filing Summary
Meta Platforms insider Mark Zuckerberg, through entities he controls, completed a conversion and charitable transfer on July 31, 2026. CZI Holdings, LLC converted 591,690 shares of Class B Common Stock into the same number of Class A shares, then transferred those Class A shares as a bona fide gift to Chan Zuckerberg Biohub, Inc. CZI Holdings, LLC reported 100,119,267 Class B shares outstanding after the conversion, while Chan Zuckerberg Biohub held 1,231,037 Class A shares. Zuckerberg is deemed to have sole voting and investment power over both entities’ holdings, but has no pecuniary interest in the shares held by Chan Zuckerberg Biohub.
Positive
- None.
Negative
- None.
Insider Trade Summary
591,690 shares exercised/converted
Exercise
14 txns
Insider
Zuckerberg Mark
Role
COB and CEO
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Conversion | Class B Common Stock F3, F1 | 591,690 | $0.00 | $0.00 |
| Conversion | Class A Common Stock F1 | 591,690 | $0.00 | $0.00 |
| Gift | Class A Common Stock F1 | 591,690 | $0.00 | $0.00 |
| Gift | Class A Common Stock F2 | 591,690 | $0.00 | $0.00 |
| holding | Class B Common Stock F3, F4 | -- | -- | -- |
| holding | Class B Common Stock F3, F5 | -- | -- | -- |
| holding | Class B Common Stock F3, F6 | -- | -- | -- |
| holding | Class B Common Stock F3, F7 | -- | -- | -- |
| holding | Class B Common Stock F3, F8 | -- | -- | -- |
| holding | Class B Common Stock F3, F9 | -- | -- | -- |
| holding | Class B Common Stock F3, F10 | -- | -- | -- |
| holding | Class B Common Stock F3, F11 | -- | -- | -- |
| holding | Class B Common Stock F3, F12 | -- | -- | -- |
| holding | Class B Common Stock F3, F13 | -- | -- | -- |
Holdings After Transaction:
Class B Common Stock — 100,119,267 contracts (Indirect, By CZI Holdings, LLC);
Class A Common Stock — 0 shares (Indirect, By CZI Holdings, LLC);
Class A Common Stock — 1,231,037 shares (Indirect, By Chan Zuckerberg Biohub, Inc.);
Class B Common Stock — 3,388,097 contracts (Indirect, By Mark Zuckerberg, Trustee Of The Mark Zuckerberg Trust Dated July 7, 2006);
Class B Common Stock — 17,061,801 contracts (Indirect, By Chan Zuckerberg Holdings, LLC);
Class B Common Stock — 12,000,000 contracts (Indirect, By CZI Holdings I, LLC);
Class B Common Stock — 8,663,023 contracts (Indirect, By Chan Zuckerberg Holdings II, LLC);
Class B Common Stock — 50,000,000 contracts (Indirect, By Chan Zuckerberg Holdings III, LLC);
Class B Common Stock — 100 contracts (Indirect, CZ Management, LLC);
Class B Common Stock — 50,000,000 contracts (Indirect, By Chan Zuckerberg Holdings IV, LLC);
Class B Common Stock — 50,000,000 contracts (Indirect, By Chan Zuckerberg Holdings V, LLC);
Class B Common Stock — 40,000,000 contracts (Indirect, By Chan Zuckerberg Holdings VI, LLC);
Class B Common Stock — 10,000,000 contracts (Indirect, By Chan Zuckerberg Holdings A LLC)
Footnotes (13)
- 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.
- F2. Shares held of record by Chan Zuckerberg Biohub, Inc. ("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.
- F3. 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.
- F4. Shares held of record by Mark Zuckerberg, Trustee of the 2006 Trust.
- F5. 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.
- F6. 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.
- F7. 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.
- F8. 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.
- F9. 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.
- F10. 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.
- F11. 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.
- F12. 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.
- F13. 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.
Key Figures
Class B converted: 591,690 shares
Class A gifted: 591,690 shares
CZI Class B holdings: 100,119,267 shares
+3 more
6 metrics
Class B converted
591,690 shares
Class B Common Stock converted into Class A on July 31, 2026 by CZI Holdings, LLC
Class A gifted
591,690 shares
Class A Common Stock transferred as a bona fide gift to Chan Zuckerberg Biohub, Inc.
CZI Class B holdings
100,119,267 shares
Class B Common Stock indirectly held by CZI Holdings, LLC after the reported conversion
CZ Biohub Class A holdings
1,231,037 shares
Class A Common Stock held by Chan Zuckerberg Biohub, Inc. after receiving the gift
Gifted share total
1,183,380 shares
Total shares involved in bona fide gift transactions per transaction summary
Class B conversion ratio
1-for-1
Each share of Class B Common Stock convertible into one share of Class A Common Stock
Key Terms
bona fide gift, pecuniary interest, beneficially owned, Class B Common Stock, +1 more
5 terms
bona fide gift financial
"transaction_code "G" is described as a "Bona fide gift" of Class A Common Stock"
A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.
pecuniary interest financial
"the reporting person has no pecuniary interest in the shares held by CZ Biohub"
beneficially owned financial
"Chan Zuckerberg Holdings entities are described as beneficially owned by the reporting person"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
Class B Common Stock financial
"The Class B Common Stock is convertible into the issuer's Class A Common Stock"
A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.
voting and investment power financial
"the reporting person is deemed to have sole voting and investment power over these securities"
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What did Mark Zuckerberg report in this Form 4 for META?
Mark Zuckerberg reported that CZI Holdings, LLC converted 591,690 Class B shares of Meta into 591,690 Class A shares and then transferred those Class A shares as a bona fide gift to Chan Zuckerberg Biohub, Inc. on July 31, 2026.
What are Mark Zuckerberg’s reported holdings via CZI Holdings in META after this Form 4?
After the conversion, CZI Holdings, LLC reported holding 100,119,267 shares of Class B Meta stock. These Class B shares are convertible 1-for-1 into Class A Common Stock, and Zuckerberg is deemed to have sole voting and investment power over these holdings.
AI-generated analysis. How Rhea-AI works. Not financial advice.
