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AER · MCO 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.

AERMCO
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.
  • AER
  • MCO
010203040202120222023202420252026
Holders and value by quarter
QuarterAERMCO
Q3 20207 holders, $543m30 holders, $17.0bn
Q4 202011 holders, $988m21 holders, $16.9bn
Q1 202113 holders, $1.5bn17 holders, $16.9bn
Q2 202112 holders, $1.2bn16 holders, $20.2bn
Q3 202111 holders, $1.3bn25 holders, $19.9bn
Q4 202110 holders, $1.8bn25 holders, $22.0bn
Q1 20225 holders, $1.2bn22 holders, $19.1bn
Q2 20224 holders, $854m19 holders, $15.4bn
Q3 20228 holders, $1.1bn21 holders, $13.6bn
Q4 20227 holders, $1.4bn17 holders, $15.5bn
Q1 202314 holders, $1.8bn20 holders, $17.3bn
Q2 202313 holders, $1.9bn25 holders, $19.4bn
Q3 202317 holders, $2.5bn21 holders, $17.2bn
Q4 202319 holders, $3.1bn21 holders, $22.3bn
Q1 202423 holders, $3.7bn22 holders, $21.9bn
Q2 202422 holders, $3.7bn24 holders, $23.6bn
Q3 202417 holders, $2.6bn31 holders, $26.8bn
Q4 202418 holders, $2.3bn31 holders, $25.7bn
Q1 202517 holders, $2.5bn30 holders, $25.2bn
Q2 202522 holders, $2.7bn30 holders, $26.8bn
Q3 202516 holders, $2.2bn31 holders, $26.0bn
Q4 202513 holders, $2.9bn32 holders, $27.7bn
Q1 202613 holders, $2.6bn28 holders, $23.9bn
Q2 202615 holders, $2.4bn31 holders, $24.9bn
AER

Aercap Holdings NV

Holders
15
Reported value
$2.4bn
Buyers
24
Sellers
9

Breadth +15 among 91 comparable managers.

Business and payment services
MCO

Moodys Corp

Holders
31
Reported value
$24.9bn
Buyers
21
Sellers
20

Breadth +1 among 91 comparable managers.

Business and payment servicesFinancial services · L3VLUP

Who holds both, Q2 2026

Among the 38 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only AER (7)

Acadian Asset Management LLC, ExodusPoint Capital Management LP, Man Group PLC, PDT Partners LLC, Quantbot Technologies LP, Tudor Investment Corp, Two Sigma Investments LP

Only MCO (23)

Akre Capital Management LLC, AQR Capital Management LLC, Arrowstreet Capital LP, Balyasny Asset Management LLC, Berkshire Hathaway Inc, Capital Research Global Investors, Dodge & Cox, Egerton Capital UK LLP, Fidelity (FMR LLC), Freestone Grove Partners LP, GAMCO Investors Inc, Holocene Advisors LP, Hudson Bay Capital Management LP, Invesco Ltd, Markel Group Inc, MFS Investment Management, Moore Capital Management LP, Renaissance Technologies LLC, Schonfeld Strategic Advisors LLC, Squarepoint Ops LLC, TCI Fund Management Ltd, Verition Fund Management LLC, Woodline Partners LP

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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