Meta product chief Cox’s trust sells 20,000 shares twice

Both sales were reported under a Rule 10b5-1 trading plan adopted by Meta’s Chief Product Officer on May 19, 2026.

Rhea-AI Filing Summary

On September 21, 2026, The Christopher K. Cox Revocable Trust sold 20,000 Meta Class A shares at a weighted average price of $700.4966 per share and another 20,000 at $725.0164 per share. Christopher K. Cox, Meta’s Chief Product Officer, reported that the sales were made under a Rule 10b5-1 trading plan adopted May 19, 2026. Separately, 55,046 shares were listed as held by Christopher K. Cox and Visra Vichit-Vadakan, co-trustees of The Cox-Vadakan Irrevocable Remainder Trust.

Insider Trade Summary 10b5-1

Net Seller: 40,000 shares

Net Sell 3 txns

Insider Cox Christopher K

Role Chief Product Officer

Sold 40,000 shs ($28.51M)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1, F2, F3	20,000	$700.4966	$14.01M
Sale	Class A Common Stock F1, F4, F3	20,000	$725.0164	$14.50M
holding	Class A Common Stock F5	--	--	--

Holdings After Transaction: Class A Common Stock — 184,516 shares (Indirect, Christopher K. Cox Revocable Trust); Class A Common Stock — 55,046 shares (Indirect, Cox-Vadakan Irrevocable Remainder Trust)

Footnotes (5)

1. F1. The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 19, 2026.
2. F2. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $700.00 to $700.92 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.
3. F3. Shares held of record by Christopher K. Cox, Trustee of The Christopher K. Cox Revocable Trust.
4. F4. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $725.00 to $725.06 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.
5. F5. Shares held of record by Christopher K. Cox and Visra Vichit-Vadakan, Co-Trustees of The Cox-Vadakan Irrevocable Remainder Trust.

Key Figures

Shares sold in first transaction: 20,000 shares Weighted average sale price in first transaction: $700.4966 per share Shares sold in second transaction: 20,000 shares +2 more

5 metrics

Shares sold in first transaction 20,000 shares September 21, 2026

Weighted average sale price in first transaction $700.4966 per share 20,000 shares sold September 21, 2026

Shares sold in second transaction 20,000 shares September 21, 2026

Weighted average sale price in second transaction $725.0164 per share 20,000 shares sold September 21, 2026

Shares held by Cox-Vadakan Irrevocable Remainder Trust 55,046 shares Holding entry dated September 21, 2026

Key Terms

Rule 10b5-1 trading plan, weighted average price, Irrevocable Remainder Trust

3 terms

Rule 10b5-1 trading plan regulatory

"pursuant to a Rule 10b5-1 trading plan adopted by the reporting person"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"The reported price in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

Irrevocable Remainder Trust financial

"The Cox-Vadakan Irrevocable Remainder Trust"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How were the META sale prices calculated?

Both reported sale prices are weighted averages. The 20,000 shares in the first sale were sold in multiple transactions at $700.00 to $700.92 per share; the second 20,000-share sale was executed at $725.00 to $725.06 per share.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/23/2026 - 06:16 PM Accepted by SEC EDGAR 09/23/2026 - 06:15 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Cox Christopher K

(Last) (First) (Middle)

C/O META PLATFORMS, INC.

1 META WAY

(Street)

MENLO PARK CALIFORNIA 94025

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Meta Platforms, Inc. [ META ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Product Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/21/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	09/21/2026		S(1)		20,000	D	$700.4966(2)	204,516	I	Christopher K. Cox Revocable Trust(3)
Class A Common Stock	09/21/2026		S(1)		20,000	D	$725.0164(4)	184,516	I	Christopher K. Cox Revocable Trust(3)
Class A Common Stock								55,046	I	Cox-Vadakan Irrevocable Remainder Trust(5)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 19, 2026.

2. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $700.00 to $700.92 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.

3. Shares held of record by Christopher K. Cox, Trustee of The Christopher K. Cox Revocable Trust.

4. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $725.00 to $725.06 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.

5. Shares held of record by Christopher K. Cox and Visra Vichit-Vadakan, Co-Trustees of The Cox-Vadakan Irrevocable Remainder Trust.

	/s/ Erin Guldiken, attorney-in-fact for Christopher K. Cox	09/23/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)