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MSM · Msc Industrial Direct Co Inc

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Market Cap
$6.66B
Shares
55.85M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 479
Total Value: $5,567,451,892
Total Shares: 46,960,980
Showing 1–100 of 490 holdings by value · page 1 of 5

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 479 13F filers · Δ vs Mar 31, 2026
Top Holder
11.9%
Sep 2023 → Jun 2026 · range 10.8% – 13.3%
+0.3 pts
Top 5
28.5%
Sep 2023 → Jun 2026 · range 28.5% – 36.5%
−1.1 pts
Top 10
44.8%
Sep 2023 → Jun 2026 · range 43.6% – 50.5%
−1.0 pts
HHI
310
Sep 2023 → Jun 2026 · range 310 – 394
Broadly held−11

Quarterly Activity

vs Mar 31, 2026
New
107
Increased
161
Decreased
140
Sold Out
47
Unchanged
71
Holder count: +60
Institutional value: +28.2%
Shares held: -0.2%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 490
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1003078 CUSIP 553530106 13F (30d) 357 filings 336 filers Visit website Investor relations