$MSM

$118.72 +$4.86 (4.27%) Close

$MSM Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 55.9M shares outstanding

Who owns MSM?

By type of holder

Institutions 83.3% Insiders 0.0% Everyone else 16.7%

Concentration Top 10 holders own 37.6%

BlackRock, Inc. 10.0% · American Century Companies Inc 3.1%

Institutional ownership

83.3%

-0.8 pts vs last qtr

Institutional holders

480

+61 vs last qtr

Net shares bought

−439.9K

by institutions in Q2 2026

New / sold out

107 / 46

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Alyeska Investment Group, L.P. NEW +419.8K
Norges Bank NEW +398.0K

Biggest sellers in Q2 2026

American Century Companies Inc −869.0K
Invesco Ltd. −775.6K

Who is planning to sell?

Notices of proposed sale, last 12 months

$156K

1 notice from 1 person

Shares covered

1.8K

0.00% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Rudina Seseri Director $156K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2017–FY2026

−1.7%

−0.19% a year

Each share's claim on the business

+1.8%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$655M vs $168M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years66% 3–5 years6% 1–3 years16% Under 1 year12%

Quarterly turnover

13.2%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting MSM on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	5.6M	9.95%	+127.9K (+2.4%)	≤2021	0.0%
Shares held by quarter Peak holding5.6M (Q2'26) Change over 8 quarters+152.4K Share of the company9.950% BlackRock, Inc.'s full portfolio →
AC American Century Companies Inc	1.7M	3.12%	−869.0K (−33.3%)	≤2021	0.1%
Shares held by quarter Peak holding3.7M (Q2'25) Change over 8 quarters−1.5M Share of the company3.120% American Century Companies Inc's full portfolio →

BlackRock, Inc.

5.6M

% of company

9.95%

Change vs last qtr

+127.9K (+2.4%)

Held since

≤2021

American Century Companies Inc

1.7M

% of company

3.12%

Change vs last qtr

−869.0K (−33.3%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding MSC Industrial Direct Co Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting MSM on Form N-PORT; together they hold 45.2% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IC iShares Core S&P Mid-Cap ETF iShares Trust	$186M	1.6M	2.80%	0.15%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$169M	1.4M	2.54%	0.01%	June 30, 2026

iShares Core S&P Mid-Cap ETF

iShares Trust

Position value

$186M

% of company

2.80%

% of the fund

0.15%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$169M

% of company

2.54%

% of the fund

0.01%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding MSC Industrial Direct Co Inc and how much of the fund the position is.

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