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Super Investors MADISON DEARBORN PARTNERS LLC
MD

MADISON DEARBORN PARTNERS LLC

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
—
Positions
1
Quarter ended
September 30, 2025
Filed
November 10, 2025

Reported portfolio value by quarter (10 quarters reported)

$1.55B —
Q2 16 Q4 16 Q2 17 Q4 24 Q2 25 Q3 25

$1.55B in Q2 2016 → — now. Hover for any quarter.

Holdings

As reported for the quarter ended September 30, 2025. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
Aon PLC NaN% Unchanged 0 —

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q3 2025

quarter ended September 30, 2025 · filed November 10, 2025

No position changes this quarter.

Q2 2025

quarter ended June 30, 2025 · filed August 12, 2025

No position changes this quarter.

Q1 2025

quarter ended March 31, 2025 · filed May 06, 2025

No position changes this quarter.

Q4 2024

quarter ended December 31, 2024 · filed February 13, 2025

Company Action Shares changed Value of change % of portfolio
V Vwr Corp Exited −45,750,000 −$1.51B —
Aon PLC New +0 — —

Q3 2017

quarter ended September 30, 2017 · filed November 14, 2017

No position changes this quarter.

Q2 2017

quarter ended June 30, 2017 · filed August 14, 2017

No position changes this quarter.

Q1 2017

quarter ended March 31, 2017 · filed May 15, 2017

No position changes this quarter.

Q4 2016

quarter ended December 31, 2016 · filed February 14, 2017

No position changes this quarter.

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