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MSA in the 13F filings

Msa Safety Inc · CUSIP 553498106

Sector · Medical devices and instrumentsTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Surgical, medical and electromedical devices
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 8 May 2026
Managers listing it
30
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 6 listed it in both
Shares listed
3,068,520
combined, among listed positions
Reported value
$503m
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: 17 buyers (opened or added shares) and 13 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +203,595.

Managers listing MSA 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.

30 of 30 holders

ActionFiling
Ruane Cunniff & Goldfarb LP1,776,282$291m4.83%Trimmed-35,35315 May 2026 (the filing on sec.gov)
Invesco Ltd417,064$68munder 0.1%Trimmed-19,83612 May 2026 (the filing on sec.gov)
Capital World Investors229,725$38munder 0.1%Added+116,88413 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc94,686$16munder 0.1%Added+3,20615 May 2026 (the filing on sec.gov)
AQR Capital Management LLC52,941$8.5munder 0.1%Added+3,66615 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.51,828$8.5munder 0.1%Added+17,98215 May 2026 (the filing on sec.gov)
Baillie Gifford & Co50,591$8.3munder 0.1%Trimmed-18,5378 May 2026 (the filing on sec.gov)
Jane Street Group LLC48,224$7.9munder 0.1%Added+42,44012 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP46,332$7.6m0.06%Newnew14 May 2026 (the filing on sec.gov)
AllianceBernstein LP46,104$7.4munder 0.1%Trimmed-86215 May 2026 (the filing on sec.gov)
Millennium Management LLC39,436$6.5munder 0.1%Trimmed-20,41315 May 2026 (the filing on sec.gov)
Citadel Advisors LLC37,463$6.1munder 0.1%Added+24,39315 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC35,721$5.8munder 0.1%Newnew13 May 2026 (the filing on sec.gov)
Winton Group Ltd35,415$5.8m0.20%Newnew12 May 2026 (the filing on sec.gov)
Walleye Capital LLC18,775$3.1munder 0.1%Newnew13 May 2026 (the filing on sec.gov)
Holocene Advisors LP18,265$3.0munder 0.1%Trimmed-1,47415 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd17,257$2.8munder 0.1%Added+1,60018 May 2026 (the filing on sec.gov)
Man Group PLC12,248$2.0munder 0.1%Trimmed-5,26615 May 2026 (the filing on sec.gov)
MFS Investment Management7,420$1.2munder 0.1%Trimmed-3814 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)6,793$1.1munder 0.1%Added+84115 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC6,137$1.0munder 0.1%Added+4127 Oct 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP4,716$773kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC3,456$567kunder 0.1%Trimmed-32,62015 May 2026 (the filing on sec.gov)
Tudor Investment Corp2,691$441kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Bridgewater Associates LP2,626$431kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Page 1 of 2

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 (8)

Exited (1)

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.
4 in Q3 2024 to 4 in Q2 2026

Tracked managers listing it, at least.

02468201420182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MSA by quarter
QuarterHoldersReported valueBuyersSellers
Q1 20142$260mn.a.n.a.
Q2 20142$258mn.a.n.a.
Q3 20142$215mn.a.n.a.
Q4 20142$218mn.a.n.a.
Q1 20151$180mn.a.n.a.
Q2 20151$168mn.a.n.a.
Q2 20162$130mn.a.n.a.
Q3 20162$141mn.a.n.a.
Q4 20162$167mn.a.n.a.
Q1 20172$3.8mn.a.n.a.
Q2 20172$14mn.a.n.a.
Q3 20174$82mn.a.n.a.
Q4 20174$112mn.a.n.a.
Q1 20183$82mn.a.n.a.
Q2 20182$92mn.a.n.a.
Q3 20183$123mn.a.n.a.
Q4 20184$133mn.a.n.a.
Q1 20193$199mn.a.n.a.
Q2 20192$195mn.a.n.a.
Q3 20192$157mn.a.n.a.
Q4 20194$194mn.a.n.a.
Q1 20203$153mn.a.n.a.
Q2 20205$186mn.a.n.a.
Q3 20204$493mn.a.n.a.
Q4 20203$481mn.a.n.a.
Q1 20213$246mn.a.n.a.
Q2 20213$265mn.a.n.a.
Q3 20213$229mn.a.n.a.
Q4 20211$228mn.a.n.a.
Q1 20221$197mn.a.n.a.
Q2 20221$2.8mn.a.n.a.
Q3 20221$1.3mn.a.n.a.
Q4 20222$16mn.a.n.a.
Q1 20232$30mn.a.n.a.
Q2 20232$46mn.a.n.a.
Q3 20231$35mn.a.n.a.
Q4 20234$49m31
Q1 20247$294m60
Q2 20244$274m24
Q3 20244$248m22
Q4 20245$277m31
Q1 20256$247m42
Q2 20256$444m42
Q3 20255$385m13
Q4 20256$324m1014
Q1 20267$354m1713
Q2 20264$367m2016

Compare with…

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

MSA and LLY →MSA and JNJ →MSA and VRTX →Choose a stock to compare with MSA →

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