Martina McIsaac - Nov 3, 2025 Form 4 Insider Report for MSC INDUSTRIAL DIRECT CO INC (MSM)

Role
President & COO
Signature
/s/ Martina McIsaac
Stock symbol
MSM
Transactions as of
Nov 3, 2025
Transactions value $
-$21,419
Form type
4
Date filed
11/5/2025, 04:35 PM
Previous filing
Oct 7, 2025
Next filing
Nov 5, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
McIsaac Martina President & COO C/O MSC INDUSTRIAL DIRECT CO., INC., 515 BROADHOLLOW ROAD, MELVILLE /s/ Martina McIsaac 2025-11-05 0001947693

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MSM Class A Common Stock, $0.001 par value Options Exercise $0 +959 +17.67% $0.00 6.39K Nov 3, 2025 Direct F1
transaction MSM Class A Common Stock, $0.001 par value Options Exercise $0 +76.6 +1.2% $0.00 6.46K Nov 3, 2025 Direct F2
transaction MSM Class A Common Stock, $0.001 par value Tax liability -$21.4K -253 -3.91% $84.79 6.21K Nov 3, 2025 Direct F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction MSM Restricted Stock Units (RSU) Award $0 +20K $0.00 20K Nov 3, 2025 Class A Common Stock, $0.001 par value 20K Direct F1, F4
transaction MSM Restricted Stock Units (RSU) Options Exercise $0 -959 -33.33% $0.00 1.92K Nov 3, 2025 Class A Common Stock, $0.001 par value 959 Direct F1, F5
transaction MSM Dividend Equivalent Units Options Exercise $0 -76.6 -8.76% $0.00 798 Nov 3, 2025 Class A Common Stock, $0.001 par value 76.6 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each RSU represents a contingent right to receive one share of Common Stock.
F2 The dividend equivalent units accrued with respect to outstanding awards of restricted stock units (RSUs) and vest at the same time(s) as the underlying RSUs. Each dividend equivalent unit represents a contingent right to receive one share of Common Stock.
F3 Disposition of Class A Common Stock to the Issuer to cover tax withholding obligations arising from the vesting of RSUs and DEUs.
F4 20,049 RSUs were granted on November 3, 2025. 5,012 RSUs vest on each of November 3, 2026, November 3, 2027, and November 3, 2028, and 5,013 RSUs vest on November 3, 2029, provided that the Reporting Person remains continuously employed by the Issuer through each applicable vesting date. The vested shares will be delivered to the Reporting Person upon vesting.
F5 3,835 RSUs were granted on November 3, 2023. 958 RSUs vested on November 3, 2024 and 959 RSUs vested on November 3, 2025. 959 RSUs vest on each of November 3, 2026 and November 3, 2027, provided that the Reporting Person remains continuously employed by the Issuer through each applicable vesting date. The vested shares will be delivered to the Reporting Person upon vesting.