ZUCKERBERG MARK (COB and CEO) sold 2.2% of their position (27.47K shares) of META PLATFORMS, INC. on the open market

Open‑market sale worth $21.36M — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 10 sales

ZUCKERBERG MARK

Filed: 9/28/2026ACC: 0000950103-26-014647

InsiderZUCKERBERG MARKCIK 1548760

→

IssuerMETA PLATFORMS, INC.CIK 1326801

DirectorOfficer10% Owner· COB and CEO

Since Jun 2018

-27.47K

Net shares

Net seller

$21.36M

Total sold

Open market trades

0B · 10S

Total transactions

17.14K acquired · 44.61K disposed

Non-Derivative Transactions11

Class A Common Stock

Indirect

C · Conversion

+17.14K

Price / share

—

Trade value

—

% of position

New position

9/24/2026

0.00→17.14K

Class A Common Stock

Indirect

S · Sale

−2.09K

Price / share

$775.39

Trade value

$1.62M

% of position

12.2%

9/24/2026

17.14K→15.05K

Class A Common Stock

Indirect

S · Sale

−2.52K

Price / share

$776.56

Trade value

$1.95M

% of position

16.7%

9/24/2026

15.05K→12.53K

Class A Common Stock

Indirect

S · Sale

−7.61K

Price / share

$777.63

Trade value

$5.92M

% of position

60.7%

9/24/2026

12.53K→4.92K

Class A Common Stock

Indirect

S · Sale

−4.32K

Price / share

$778.36

Trade value

$3.37M

% of position

87.8%

9/24/2026

4.92K→600.00

Class A Common Stock

Indirect

S · Sale

−600.00

Price / share

$779.33

Trade value

$467.60K

% of position

New position

9/24/2026

600.00→0.00

Class A Common Stock

Indirect

S · Sale

−1.13K

Price / share

$775.32

Trade value

$878.44K

% of position

0.1%

9/24/2026

1.23M→1.23M

Class A Common Stock

Indirect

S · Sale

−1.77K

Price / share

$776.56

Trade value

$1.37M

% of position

0.1%

9/24/2026

1.23M→1.23M

Class A Common Stock

Indirect

S · Sale

−4.81K

Price / share

$777.66

Trade value

$3.74M

% of position

0.4%

9/24/2026

1.23M→1.22M

Class A Common Stock

Indirect

S · Sale

−2.15K

Price / share

$778.40

Trade value

$1.67M

% of position

0.2%

9/24/2026

1.22M→1.22M

Class A Common Stock

Indirect

S · Sale

−476.00

Price / share

$779.28

Trade value

$370.94K

% of position

0.0%

9/24/2026

1.22M→1.22M

Total

Net shares

−10.33K

Net value

-$21.36M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Indirect	9/24/2026	C · Conversion	+17.14K	—	—	New position	0.00	17.14K
Class A Common Stock Indirect	9/24/2026	S · Sale	−2.09K	$775.39	$1.62M	12.2%	17.14K	15.05K
Class A Common Stock Indirect	9/24/2026	S · Sale	−2.52K	$776.56	$1.95M	16.7%	15.05K	12.53K
Class A Common Stock Indirect	9/24/2026	S · Sale	−7.61K	$777.63	$5.92M	60.7%	12.53K	4.92K
Class A Common Stock Indirect	9/24/2026	S · Sale	−4.32K	$778.36	$3.37M	87.8%	4.92K	600.00
Class A Common Stock Indirect	9/24/2026	S · Sale	−600.00	$779.33	$467.60K	New position	600.00	0.00
Class A Common Stock Indirect	9/24/2026	S · Sale	−1.13K	$775.32	$878.44K	0.1%	1.23M	1.23M
Class A Common Stock Indirect	9/24/2026	S · Sale	−1.77K	$776.56	$1.37M	0.1%	1.23M	1.23M
Class A Common Stock Indirect	9/24/2026	S · Sale	−4.81K	$777.66	$3.74M	0.4%	1.23M	1.22M
Class A Common Stock Indirect	9/24/2026	S · Sale	−2.15K	$778.40	$1.67M	0.2%	1.22M	1.22M
Class A Common Stock Indirect	9/24/2026	S · Sale	−476.00	$779.28	$370.94K	0.0%	1.22M	1.22M
Total			−10.33K		-$21.36M

Derivative Transactions1

Class B Common Stock

Indirect

C · Conversion

Converts to

Class A Common Stock

17.14K shares

−17.14K

Strike price

Held after

100.10M

Exercisable

—

9/24/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Class B Common Stock Indirect	Class A Common Stock17.14K shares	9/24/2026	C · Conversion	−17.14K		—	100.10M

Non-Derivative Holdings (Post-Transaction)0

No non-derivative holdings reported

Derivative Holdings (Post-Transaction)10

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

3.39M

Shares owned

3.39M

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

12M

Shares owned

12M

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

40M

Shares owned

40M

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

50M

Shares owned

50M

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

100.00

Shares owned

100.00

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

50M

Shares owned

50M

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

8.66M

Shares owned

8.66M

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

17.06M

Shares owned

17.06M

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

50M

Shares owned

50M

Exercise price

Expiration

—

Exercise window

—

Class B Common Stock

Indirect

Underlying security

Class A Common Stock

Underlying shares

10M

Shares owned

10M

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

241.11M

Owned

241.11M

Security	Underlying	Exercise Window	Expiration	Underlying Shares	Shares Owned
Class B Common Stock Indirect	Class A Common Stock	—	—	3.39M	3.39M
Class B Common Stock Indirect	Class A Common Stock	—	—	12M	12M
Class B Common Stock Indirect	Class A Common Stock	—	—	40M	40M
Class B Common Stock Indirect	Class A Common Stock	—	—	50M	50M
Class B Common Stock Indirect	Class A Common Stock	—	—	100.00	100.00
Class B Common Stock Indirect	Class A Common Stock	—	—	50M	50M
Class B Common Stock Indirect	Class A Common Stock	—	—	8.66M	8.66M
Class B Common Stock Indirect	Class A Common Stock	—	—	17.06M	17.06M
Class B Common Stock Indirect	Class A Common Stock	—	—	50M	50M
Class B Common Stock Indirect	Class A Common Stock	—	—	10M	10M
Total				241.11M	241.11M