MCISAAC MARTINA (EVP, Chief Operating Officer) exercised options at MSC INDUSTRIAL DIRECT CO INC

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

M · 2 exercises

MCISAAC MARTINA

Filed: 11/5/2025ACC: 0001003078-25-000138

InsiderMCISAAC MARTINACIK 1947693

→

IssuerMSC INDUSTRIAL DIRECT CO INCCIK 1003078

Officer· EVP, Chief Operating Officer

Since Oct 2022

+19.80K

Net shares

Net buyer

$21.4K

Total sold

Open market trades

0B · 0S

Total transactions

21.08K acquired · 1.29K disposed

Non-Derivative Transactions3

Class A Common Stock, $0.001 par value

Direct

M · Option Exercise

+959.00

Price / share

—

Trade value

—

% of position

17.7%

11/3/2025

5.43K→6.39K

Class A Common Stock, $0.001 par value

Direct

M · Option Exercise

+76.61

Price / share

—

Trade value

—

% of position

1.2%

11/3/2025

6.39K→6.46K

Class A Common Stock, $0.001 par value

Direct

F · Tax Withholding

−252.61

Price / share

$84.79

Trade value

$21.42K

% of position

3.9%

11/3/2025

6.46K→6.21K

Total

Net shares

+783.00

Net value

-$21.42K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock, $0.001 par value Direct	11/3/2025	M · Option Exercise	+959.00	—	—	17.7%	5.43K	6.39K
Class A Common Stock, $0.001 par value Direct	11/3/2025	M · Option Exercise	+76.61	—	—	1.2%	6.39K	6.46K
Class A Common Stock, $0.001 par value Direct	11/3/2025	F · Tax Withholding	−252.61	$84.79	$21.42K	3.9%	6.46K	6.21K
Total			+783.00		-$21.42K

Derivative Transactions3

Restricted Stock Units (RSU)

Direct

A · Award

Converts to

Class A Common Stock, $0.001 par value

20.05K shares

+20.05K

Strike price

Held after

20.05K

Exercisable

—

11/3/2025

Restricted Stock Units (RSU)

Direct

M · Option Exercise

Converts to

Class A Common Stock, $0.001 par value

959.00 shares

−959.00

Strike price

Held after

1.92K

Exercisable

—

11/3/2025

Dividend Equivalent Units

Direct

M · Option Exercise

Converts to

Class A Common Stock, $0.001 par value

76.61 shares

−76.61

Strike price

Held after

798.00

Exercisable

—

11/3/2025

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Stock Units (RSU) Direct	Class A Common Stock, $0.001 par value20.05K shares	11/3/2025	A · Award	+20.05K	—	20.05K
Restricted Stock Units (RSU) Direct	Class A Common Stock, $0.001 par value959.00 shares	11/3/2025	M · Option Exercise	−959.00	—	1.92K
Dividend Equivalent Units Direct	Class A Common Stock, $0.001 par value76.61 shares	11/3/2025	M · Option Exercise	−76.61	—	798.00