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MZTI · COST in the 13F filings

Two to four stocks side by side among the 95 tracked managers: who lists them, how that has moved, who bought and sold in a quarter, and which managers hold more than one.

MZTICOST
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023

Holders over time

Tracked managers listing each stock every quarter, at least, or their combined reported value. A gap is a quarter in which no tracked manager listed it. Click a quarter to compare there.
  • MZTI
  • COST
010203040202120222023202420252026
Holders and value by quarter
QuarterMZTICOST
Q3 20209 holders, $361m32 holders, $15.4bn
Q4 20205 holders, $295m30 holders, $15.3bn
Q1 20216 holders, $268m29 holders, $13.4bn
Q2 20217 holders, $292m25 holders, $15.5bn
Q3 20218 holders, $253m25 holders, $16.9bn
Q4 20215 holders, $222m27 holders, $20.5bn
Q1 20225 holders, $190m32 holders, $19.9bn
Q2 20226 holders, $122m30 holders, $15.8bn
Q3 20225 holders, $60m33 holders, $16.0bn
Q4 20225 holders, $93m33 holders, $32.7bn
Q1 20233 holders, $72m29 holders, $14.9bn
Q2 20234 holders, $76m37 holders, $16.0bn
Q3 20234 holders, $64m30 holders, $16.8bn
Q4 20233 holders, $56m26 holders, $20.1bn
Q1 20243 holders, $82m29 holders, $21.5bn
Q2 20243 holders, $62m31 holders, $24.7bn
Q3 20242 holders, $64m28 holders, $24.7bn
Q4 20242 holders, $57m34 holders, $26.0bn
Q1 20252 holders, $59m35 holders, $28.2bn
Q2 20251 holders, $68m36 holders, $29.4bn
Q3 20254 holders, $92m35 holders, $26.7bn
Q4 20254 holders, $89m40 holders, $34.6bn
Q1 20266 holders, $201m40 holders, $36.1bn
Q2 20266 holders, $195m38 holders, $35.5bn
MZTI

Lancaster Colony Corp

Holders
4
Reported value
$89m
Buyers
16
Sellers
13

Breadth +3 among 92 comparable managers.

Consumer staples
COST

Costco Wholesale Corporation

Holders
40
Reported value
$34.6bn
Buyers
28
Sellers
13

Breadth +15 among 92 comparable managers.

Consumer staples

Who holds both, Q4 2025

Among the 40 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only MZTI (0)

None.

Only COST (36)

Acadian Asset Management LLC, AllianceBernstein LP, AQR Capital Management LLC, Arrowstreet Capital LP, Balyasny Asset Management LLC, Brevan Howard Capital Management LP, Bridgewater Associates LP, Capital Research Global Investors, Capital World Investors, Caxton Associates LLP, Citadel Advisors LLC, D. E. Shaw & Co., Fidelity (FMR LLC), GAMCO Investors Inc, Harris Associates LP, Hudson Bay Capital Management LP, Invesco Ltd, Janus Henderson Group Ltd, Markel Group Inc, Marshall Wace LLP, MFS Investment Management, Millennium Management LLC, Neuberger Berman Group LLC, Schonfeld Strategic Advisors LLC, Squarepoint Ops LLC, and 11 more

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. Buyers and sellers count comparable managers (those that filed both quarters) by shares, so a rise in value with no rise in shares is the price. Large books are listed to their largest positions. These are 95 tracked managers, not the institutional market.

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