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MTRX in the 13F filings

Matrix SVC Co · CUSIP 576853105

Sector · Industrials
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q1 2024Q3 2023Q2 2023Q1 2023Q4 2022
Quarter end
31 Mar 2026
the date the book describes
Filed
15 May 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
24
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 2 listed it in both
Shares listed
5,065,835
combined, among listed positions
Reported value
$58m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 15 buyers (opened or added shares) and 9 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +1,410,827.

Managers listing MTRX in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

24 of 24 holders

ActionFiling
First Eagle Investment Management LLC850,809$9.8munder 0.1%Added+210,72614 May 2026 (the filing on sec.gov)
Two Sigma Investments LP637,691$7.3munder 0.1%Added+436,98115 May 2026 (the filing on sec.gov)
AQR Capital Management LLC498,941$5.7munder 0.1%Added+133,70315 May 2026 (the filing on sec.gov)
Millennium Management LLC476,411$5.5munder 0.1%Trimmed-10,25715 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC476,089$5.5munder 0.1%Added+178,30013 May 2026 (the filing on sec.gov)
Citadel Advisors LLC472,047$5.4munder 0.1%Added+243,63815 May 2026 (the filing on sec.gov)
Marshall Wace LLP313,296$3.6munder 0.1%Added+281,82415 May 2026 (the filing on sec.gov)
Jane Street Group LLC313,175$3.6munder 0.1%Added+203,56712 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC255,800$2.9munder 0.1%Added+5,20014 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP143,817$1.7munder 0.1%Trimmed-261,79314 May 2026 (the filing on sec.gov)
AllianceBernstein LP113,740$1.3munder 0.1%Trimmed-4,43015 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.69,541$798kunder 0.1%Trimmed-30,85415 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP63,717$731kunder 0.1%Added+36,70614 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc63,191$726kunder 0.1%Added+9,97915 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC52,764$606kunder 0.1%Added+41,19615 May 2026 (the filing on sec.gov)
Invesco Ltd51,771$594kunder 0.1%Trimmed-17312 May 2026 (the filing on sec.gov)
Winton Group Ltd43,029$494kunder 0.1%Trimmed-42,88212 May 2026 (the filing on sec.gov)
Man Group PLC38,821$446kunder 0.1%Trimmed-17,10815 May 2026 (the filing on sec.gov)
Quantbot Technologies LP35,965$413kunder 0.1%Added+32,02813 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP30,072$345kunder 0.1%Added+17,47215 May 2026 (the filing on sec.gov)
Walleye Capital LLC24,124$277kunder 0.1%Newnew13 May 2026 (the filing on sec.gov)
Point72 Asset Management LP22,262$256kunder 0.1%Trimmed-93,52615 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP18,054$207kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)708$8kunder 0.1%Trimmed-1,64815 May 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

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

New (2)

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.
2 in Q1 2024 to 1 in Q2 2026

Tracked managers listing it, at least.

01232014201920222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MTRX by quarter
QuarterHoldersReported valueBuyersSellers
Q1 20143$6.1mn.a.n.a.
Q2 20142$863kn.a.n.a.
Q4 20151$3.3mn.a.n.a.
Q3 20181$3.2mn.a.n.a.
Q4 20183$3.8mn.a.n.a.
Q1 20191$360kn.a.n.a.
Q2 20192$1.1mn.a.n.a.
Q3 20192$1.5mn.a.n.a.
Q2 20201$285kn.a.n.a.
Q3 20201$600kn.a.n.a.
Q4 20201$867kn.a.n.a.
Q1 20221$273kn.a.n.a.
Q2 20221$168kn.a.n.a.
Q3 20221$100kn.a.n.a.
Q4 20221$151kn.a.n.a.
Q1 20231$87kn.a.n.a.
Q2 20231$88kn.a.n.a.
Q3 20231$4.3mn.a.n.a.
Q1 20242$6.0m20
Q4 20241$960k10
Q1 20251$3.9m10
Q2 20252$7.7m20
Q3 20252$8.7m20
Q4 20252$8.5m177
Q1 20261$9.8m159
Q2 20261$14m1511

Compare with…

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

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

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 MTRX, latest filings →Back to the 13F Explorer →