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MSM in the 13F filings

MSC Indl Direct Inc · CUSIP 553530106

Sector · Industrials
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023

Q3 2026: 5 of 95 managers have filed so far; the filing deadline is 16 November 2026. Its figures cover those filers only, so it is not yet a picture of the tracked managers.

Quarter end
30 Sep 2026
the date the book describes
Filed
9 Nov 2026
latest of these filings; the earliest 9 Nov 2026
Managers listing it
2
at least, of 95 tracked, among listed positions
Comparable managers
5
filed both Q2 2026 and Q3 2026; 0 listed it in both
Shares listed
458,416
combined, among listed positions
Reported value
$57m
combined, at the quarter end

Among the 5 comparable managers: 2 buyers (opened or added shares) and 0 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +426,299.

Managers listing MSM in Q3 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

2 of 2 holders

ActionFiling
Acadian Asset Management LLC341,910$42munder 0.1%Added+325,1109 Nov 2026 (the filing on sec.gov)
Squarepoint Ops LLC116,506$14munder 0.1%Added+101,1899 Nov 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q2 2026 to Q3 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

No reduction among listed positions.

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (0)

No new position among listed positions.

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
7 in Q4 2024 to 1 in Q3 2026

Tracked managers listing it, at least.

0510152014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MSM by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20134$286mn.a.n.a.
Q3 20134$305mn.a.n.a.
Q4 20135$300mn.a.n.a.
Q1 20147$351mn.a.n.a.
Q2 20144$335mn.a.n.a.
Q3 20143$283mn.a.n.a.
Q4 20144$282mn.a.n.a.
Q1 20154$166mn.a.n.a.
Q2 20152$151mn.a.n.a.
Q3 20155$130mn.a.n.a.
Q4 20155$113mn.a.n.a.
Q1 20165$189mn.a.n.a.
Q2 201611$221mn.a.n.a.
Q3 20165$200mn.a.n.a.
Q4 20168$349mn.a.n.a.
Q1 201712$686mn.a.n.a.
Q2 201712$399mn.a.n.a.
Q3 20176$113mn.a.n.a.
Q4 20177$233mn.a.n.a.
Q1 20187$70mn.a.n.a.
Q2 20189$46mn.a.n.a.
Q3 20185$74mn.a.n.a.
Q4 20185$38mn.a.n.a.
Q1 20193$16mn.a.n.a.
Q2 20192$1.6mn.a.n.a.
Q3 20196$21mn.a.n.a.
Q4 20195$28mn.a.n.a.
Q1 20203$6.6mn.a.n.a.
Q2 20207$34mn.a.n.a.
Q3 20207$69mn.a.n.a.
Q4 20207$156mn.a.n.a.
Q1 20214$173mn.a.n.a.
Q2 20213$148mn.a.n.a.
Q3 20216$127mn.a.n.a.
Q4 20219$131mn.a.n.a.
Q1 20226$124mn.a.n.a.
Q2 20227$129mn.a.n.a.
Q3 202210$145mn.a.n.a.
Q4 202212$199mn.a.n.a.
Q1 20237$168mn.a.n.a.
Q2 202310$259mn.a.n.a.
Q3 20237$300mn.a.n.a.
Q4 20237$248m34
Q1 20246$234m32
Q2 20246$113m43
Q3 20244$123m22
Q4 20247$98m51
Q1 20255$50m14
Q2 20253$42m12
Q3 20251$34m01
Q4 20254$55m209
Q1 20266$104m1812
Q2 20266$105m1515
Q3 20261$42m20

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

MSM and KLAC →MSM and GE →MSM and LRCX →Choose a stock to compare with MSM →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own MSM, latest filings →Back to the 13F Explorer →