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MSC Industrial Direct Co Inc

MSM
Exchange
NYSE
Industry
Wholesale-Industrial Machinery & Equipment
SEC CIK
0001003078

In the last 90 days, MSC Industrial Direct Co Inc insiders filed 2 open-market purchases and 0 sales; 482 institutions reported holding it in 13F filings for Q2 2026, worth $5.52B in total; no superinvestor holds it.

Holders of 5% or more of MSM

Holders whose latest Schedule 13D or 13G filing reports 5% or more of MSC Industrial Direct Co Inc, largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of MSM
HolderLatest formStakeChangeFirst filedLatest filingFiling
BlackRock, Inc.13G/A9.10%5.08M shares–Apr 24, 20251 filingApr 24, 2025SEC
Korenvaes Harlan B13G5.90%4.29M sharesNewAug 11, 20261 filingAug 11, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

27 Schedule 13D and 13G filings on MSC Industrial Direct Co Inc, newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on MSM
Filed (ET)FilerFormStakeChangeEvent dateFiling
Aug 11, 20268:43 PM ETKorenvaes Harlan Band 1 other13G5.90%4.29M sharesNewAug 4, 2026SEC
May 1, 202610:18 AM ETAmerican Century Investment Management Incand 2 others13G/A4.70%2.61M shares−0.40 ppfrom 5.10%Below 5%Mar 31, 2026SEC
Mar 27, 202610:53 AM ETVanguard Group Inc13G/A0.00%0 shares–Below 5%Mar 13, 2026SEC
Feb 13, 202610:23 AM ETAmerican Century Investment Management Incand 2 others13G5.10%2.84M shares+0.30 ppfrom 4.80%Dec 31, 2025SEC
Nov 14, 20259:50 AM ETAmerican Century Investment Management Incand 2 others13G/A4.80%2.69M shares–Below 5%Sep 30, 2025SEC
Apr 24, 20259:37 AM ETBlackRock, Inc.13G/A9.10%5.08M shares–Mar 31, 2025SEC
Nov 8, 2024American Century Investment Management Inc13GOld format–––SEC
Feb 13, 2024Vanguard Group Inc13G/AOld format–––SEC
Feb 12, 2024American Century Investment Management Inc13G/AOld format–––SEC
Jan 24, 20242:27 PM ETBlackRock Inc.13G/AOld format–––SEC
Oct 10, 2023Vanguard Group Inc13G/AOld format–––SEC
Oct 5, 2023Jacobson Mitchell13D/AOld format–––SEC
Jun 21, 2023Jacobson Mitchell13D/AOld format–––SEC
Feb 9, 2023Vanguard Group Inc13G/AOld format–––SEC
Feb 8, 2023American Century Investment Management Inc13G/AOld format–––SEC
Feb 6, 2023Jacobson Mitchell13DOld format–––SEC
Jan 23, 20233:52 PM ETBlackRock Inc.13G/AOld format–––SEC
Apr 8, 20229:57 AM ETBlackRock Inc.13G/AOld format–––SEC
Feb 10, 2022Vanguard Group Inc13G/AOld format–––SEC
Feb 10, 2022Jacobson Mitchell13G/AOld format–––SEC
Feb 4, 2022American Century Investment Management Inc13GOld format–––SEC
Feb 1, 20225:14 PM ETBlackRock Inc.13G/AOld format–––SEC
Apr 12, 2021Vanguard Group Inc13G/AOld format–––SEC
Feb 16, 2021Jacobson Mitchell13G/AOld format–––SEC
Feb 11, 2021American Century Investment Management Inc13G/AOld format–––SEC
Feb 10, 2021Vanguard Group Inc13G/AOld format–––SEC
Jan 29, 20215:21 PM ETBlackRock Inc.13G/AOld format–––SEC

Form 144: proposed insider sales

15 notices from officers, directors and other affiliates planning to sell MSC Industrial Direct Co Inc shares, newest first.

Form 144 notices for MSM
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Feb 2, 20264:12 PM ETRudina SeseriDirector1.80K$156.3KFeb 2, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Jul 10, 20254:31 PM ETKimberly A ShacklettOfficer2.13K$193.2KJul 10, 202510b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Jul 9, 20254:14 PM ETKimberly ShacklettOfficer2.13K$193.2KJul 9, 202510b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Jul 3, 20252:59 PM ETGershwind ErikDirector · Officer2.00K$179.2KJul 3, 2025UBS Financial Services IncSEC
Jul 3, 20251:03 PM ETThe Philip R Peller Revocable TrustDirector2.00K$180.0KJul 3, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 13, 20244:55 PM ETThe Philip R Peller Revocable TrustDirector900$80.2KNov 13, 2024Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 12, 20245:31 PM ETGershwind ErikDirector · Officer100.0K$8.91MNov 11, 2024UBS Financial Services IncSEC
Jul 17, 20244:11 PM ETShacklett KimberlyOfficer4.88K$413.3KJul 17, 2024Morgan Stanley Smith Barney LLC Executive ServicesSEC
Jan 31, 20246:03 PM ETJacobson MitchellDirector · 10% stockholder25.0K$240.0KJan 31, 2024UBS Financial Services IncSEC
Jan 22, 20246:29 PM ETJacobson MitchellDirector · 10% stockholder250.0K$24.1MJan 22, 2024UBS Financial Services IncSEC
Nov 27, 20234:05 PM ETKristen Actis-GrandeOfficer2.69K$265.2KNov 27, 202310b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 21, 20234:03 PM ETKristen Actis-GrandeOfficer2.89K$285.0KNov 21, 202310b5-1Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 3, 20237:35 PM ETGershwind ErikDirector · Officer100.0K$9.78MNov 3, 2023UBS Financial Services IncSEC
Jul 28, 20235:59 PM ETBledsoe ElizabethOfficer3.09K$309.1KJul 28, 2023ETRADE FINANCIAL CORPORATIONSEC
May 2, 20235:11 PM ETShacklett KimberlyOfficer6.44K$588.9KMay 2, 2023ETRADE FINANCIAL CORPORATIONSEC