WALSH MATTHEW M (Chief Financial Officer) exercised options at ORGANON & CO.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 2 exercises

WALSH MATTHEW M

Filed: 4/2/2026ACC: 0001628280-26-023157

InsiderWALSH MATTHEW MCIK 1269428

→

IssuerORGANON & CO.CIK 1821825

Officer· Chief Financial Officer

Since May 2021

+393.33K

Net shares

Net buyer

$65.6K

Total sold

Open market trades

0B · 0S

Total transactions

438.43K acquired · 45.10K disposed

Non-Derivative Transactions4

Common Stock

Direct

M · Option Exercise

+12.05K

Price / share

—

Trade value

—

% of position

6.3%

3/31/2026

190.66K→202.71K

Common Stock

Direct

F · Tax Withholding

−4.13K

Price / share

$5.70

Trade value

$23.52K

% of position

2.0%

3/31/2026

202.71K→198.58K

Common Stock

Direct

M · Option Exercise

+21.55K

Price / share

—

Trade value

—

% of position

10.9%

3/31/2026

198.58K→220.13K

Common Stock

Direct

F · Tax Withholding

−7.38K

Price / share

$5.70

Trade value

$42.07K

% of position

3.4%

3/31/2026

220.13K→212.75K

Total

Net shares

+22.09K

Net value

-$65.59K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	3/31/2026	M · Option Exercise	+12.05K	—	—	6.3%	190.66K	202.71K
Common Stock Direct	3/31/2026	F · Tax Withholding	−4.13K	$5.70	$23.52K	2.0%	202.71K	198.58K
Common Stock Direct	3/31/2026	M · Option Exercise	+21.55K	—	—	10.9%	198.58K	220.13K
Common Stock Direct	3/31/2026	F · Tax Withholding	−7.38K	$5.70	$42.07K	3.4%	220.13K	212.75K
Total			+22.09K		-$65.59K

Derivative Transactions4

Restricted Stock Units

Direct

A · Award

Converts to

Common Stock

321.37K shares

+321.37K

Strike price

Held after

321.37K

Exercisable

—

3/31/2026

Restricted Stock Units

Direct

A · Award

Converts to

Common Stock

83.47K shares

+83.47K

Strike price

Held after

83.47K

Exercisable

—

3/31/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

12.05K shares

−12.05K

Strike price

Held after

0.00

Exercisable

—

3/31/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

21.55K shares

−21.55K

Strike price

Held after

43.09K

Exercisable

—

3/31/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Stock Units Direct	Common Stock321.37K shares	3/31/2026	A · Award	+321.37K	—	321.37K
Restricted Stock Units Direct	Common Stock83.47K shares	3/31/2026	A · Award	+83.47K	—	83.47K
Restricted Stock Units Direct	Common Stock12.05K shares	3/31/2026	M · Option Exercise	−12.05K	—	0.00
Restricted Stock Units Direct	Common Stock21.55K shares	3/31/2026	M · Option Exercise	−21.55K	—	43.09K