13F reference period
Q3 2026
Security Snapshot
MSC INDUSTRIAL DIRECT CO INC - Class A Common Stock, par value $0.001 per share (MSM) Institutional Ownership
CUSIP: 553530106
13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026
Institutions Reporting
318
Shares (Excl. Options)
23.93M
Full value: 23,925,895 · shares · 30 Sep 2026Price
$123.72
The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.
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- Security type / class
- Equity / Class A Common Stock, par value $0.001 per share
- Symbol
- MSM on NYSE
- All holders as of 30 Sep 2026
- Q3 2026
- Total 13F shares
- 23,925,895
- Total 13F value
- $2,959,115,626
- Portfolio coverage rank
- 0%
- Share change
- -1,286,360
- Value change
- -$158,506,251
- Number of holders
- 318
- Shares outstanding
- 72,785,153
- SEC-reported price per share
- $128.50
- Insider filing price
- $128.50
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- MSM - MSC INDUSTRIAL DIRECT CO INC - Class A Common Stock, par value $0.001 per share is tracked under CUSIP 553530106.
- 318 institutions reported positions in Q3 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 480 to 318 between Q2 2026 and Q3 2026.
- SEC-reported value moved from to
$5.52B
Full value: $5,523,066,154 · USD · 30 Jun 2026.$2.96B
Full value: $2,959,115,626 · USD · 30 Sep 2026
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 318 institutions filings for Q3 2026.
Security key
553530106
13F reference period
Q3 2026
13F holders
318
13D/G owners
3
CIK / CUSIP context first
Open Q3 2026 holders
MSM full holder history
MSC INDUSTRIAL DIRECT CO INC SEC filings
MSC INDUSTRIAL DIRECT CO INC company facts
MSC INDUSTRIAL DIRECT CO INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 553530106:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
MSM
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 9.1% | $391,063,930 | 5,079,412 | BlackRock, Inc. | 31 Mar 2025 | |||
| Korenvaes Harlan B | 5.9% | $515,619,483 | 4,294,324 | Harlan B. Korenvaes | 04 Aug 2026 | |||
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC | 4.7% | -8% | $236,002,818 | -$20,293,007 | 2,612,963 | -7.9% | American Century Investment Management, Inc. | 31 Mar 2026 |
As of 30 Sep 2026,
318
institutional investors reported holding
shares of
MSC INDUSTRIAL DIRECT CO INC - Class A Common Stock, par value $0.001 per share (MSM).
This represents
33%
of the company’s total
outstanding shares.
23.93M
Full value: 23,925,895 · shares · 30 Sep 202672.79M
Full value: 72,785,153 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
27%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.1% | 2,281,836 | +6.7% | 0.01% | $282,308,750 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.6% | 1,863,280 | -8.1% | 0% | $230,525,002 |
| FULLER & THALER ASSET MANAGEMENT, INC. | 2.5% | 1,845,766 | -2.2% | 0.67% | $228,358,108 |
| FIRST TRUST ADVISORS LP | 2.1% | 1,525,119 | -9% | 0.11% | $188,687,719 |
| STATE STREET CORP | 1.9% | 1,381,515 | -5.6% | 0% | $170,921,036 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.7% | 1,242,118 | +6.3% | 0.01% | $153,700,081 |
| DIMENSIONAL FUND ADVISORS LP | 1.7% | 1,207,267 | -3.3% | 0.03% | $149,366,131 |
| Quantinno Capital Management LP | 1.4% | 997,708 | +53% | 0.12% | $123,436,462 |
| Epoch Investment Partners, Inc. | 1.1% | 792,451 | -14% | 0.58% | $98,042,038 |
| AMERICAN CENTURY COMPANIES INC | 1.1% | 792,347 | -55% | 0.04% | $98,029,438 |
| Invesco Ltd. | 0.92% | 670,154 | +79% | 0.01% | $82,911,453 |
| MORGAN STANLEY | 0.8% | 585,233 | -25% | 0% | $72,405,199 |
| Qube Research & Technologies Ltd | 0.73% | 532,866 | +82% | 0.07% | $65,926,182 |
| Bahl & Gaynor LLC | 0.67% | 484,854 | +101% | 0.29% | $59,986,137 |
| Alberta Investment Management Corp | 0.59% | 430,000 | -25% | 0.3% | $53,199,600 |
| NEW SOUTH CAPITAL MANAGEMENT INC | 0.53% | 387,098 | -28% | 3.1% | $47,891,765 |
| FIL Ltd | 0.53% | 386,789 | +9.9% | 0.03% | $47,853,535 |
| Boston Trust Walden Corp | 0.49% | 356,317 | -14% | 0.36% | $44,083,539 |
| Artisan Partners Limited Partnership | 0.46% | 334,588 | 0.08% | $41,395,227 | |
| ROYCE & ASSOCIATES LP | 0.42% | 306,553 | -14% | 0.35% | $37,926,737 |
| VANGUARD FIDUCIARY TRUST CO | 0.36% | 262,304 | -9.1% | 0.01% | $32,452,251 |
| PZENA INVESTMENT MANAGEMENT LLC | 0.32% | 235,135 | -37% | 0.09% | $29,090,902 |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. | 0.29% | 209,889 | +0.28% | 0.19% | $25,967,467 |
| DEPRINCE RACE & ZOLLO INC | 0.26% | 186,882 | -65% | 0.41% | $23,121,041 |
| WINTON GROUP Ltd | 0.26% | 186,793 | +16% | 0.9% | $23,110,030 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
51
Headline period
Q3 2026
Rows shown
1-25 of 51
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 23,925,895 | $2,959,115,626 | -$158,506,251 | $123.72 | 318 |
| 2026 Q2 | 46,558,842 | $5,523,066,154 | -$24,144,887 | $118.95 | 480 |
| 2026 Q1 | 46,989,489 | $4,331,768,555 | -$53,396,569 | $92.27 | 417 |
| 2025 Q4 | 47,515,769 | $4,000,099,635 | +$95,741,468 | $84.10 | 419 |
| 2025 Q3 | 46,383,720 | $4,272,350,294 | -$115,329,848 | $92.14 | 421 |
| 2025 Q2 | 47,737,626 | $4,059,077,418 | +$111,930,321 | $85.02 | 384 |
| 2025 Q1 | 46,622,849 | $3,620,642,580 | +$65,745,430 | $77.67 | 378 |
| 2024 Q4 | 45,903,528 | $3,428,185,505 | +$22,099,990 | $74.69 | 379 |
| 2024 Q3 | 45,233,407 | $3,892,161,193 | +$156,184,520 | $86.06 | 407 |
| 2024 Q2 | 43,584,476 | $3,456,021,761 | -$73,048,483 | $79.31 | 411 |
| 2024 Q1 | 44,214,363 | $4,289,438,168 | +$79,731,269 | $97.04 | 459 |
| 2023 Q4 | 43,370,670 | $4,391,050,938 | -$150,138,220 | $101.26 | 461 |
| 2023 Q3 | 44,605,356 | $4,377,851,981 | +$79,592,193 | $98.15 | 412 |
| 2023 Q2 | 43,724,356 | $4,165,120,772 | +$148,853,756 | $95.28 | 426 |
| 2023 Q1 | 42,307,242 | $3,553,718,341 | +$26,386,229 | $84.00 | 379 |
| 2022 Q4 | 42,074,864 | $3,439,202,932 | -$24,837,040 | $81.70 | 376 |
| 2022 Q3 | 41,887,631 | $3,053,427,350 | -$44,208,453 | $72.81 | 346 |
| 2022 Q2 | 42,188,584 | $3,168,178,041 | -$54,245,185 | $75.11 | 346 |
| 2022 Q1 | 43,826,104 | $3,731,881,942 | +$124,334,497 | $85.21 | 361 |
| 2021 Q4 | 42,131,401 | $3,538,764,403 | -$5,978,997 | $84.06 | 376 |
| 2021 Q3 | 42,154,366 | $3,381,737,302 | -$23,577,482 | $80.19 | 348 |
| 2021 Q2 | 42,231,220 | $3,788,016,204 | -$92,303,584 | $89.73 | 344 |
| 2021 Q1 | 43,320,046 | $3,907,303,647 | +$172,301,365 | $90.19 | 365 |
| 2020 Q4 | 41,580,728 | $3,508,137,406 | +$70,209,180 | $84.39 | 350 |
| 2020 Q3 | 40,834,286 | $2,584,389,541 | +$45,906,859 | $63.28 | 321 |