RKWD

ROCKWOOD RESEARCH · A CORPORATE FILINGS WEBSITE|STRAIGHT FROM THE SOURCE · SEC EDGAR|SPONSOREDYour message on this tape — bid on the Rockwood Ad Exchange · Rockwood Ad Exchange|

Rockwood Research

AON

Aon plc

Insurance Agents, Brokers & Service · SIC 6411CIK 315293Held by 21 tracked managersEDGAR filings ↗10-K/10-Q ↗

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18 of 18 reported changes in each tracked manager’s latest 13F vs its prior quarter (2 reporting periods). Every change is listed — no cap.

ManagerActionShare change% chgEnding % of 13F bookPosition size

Eminence Capital

Q1 2026Position history →

New+179,019—1.3%$0.06B

Q2 2026Position history →

New+1,812—<0.01%$<0.01B

Capital World Investors

Q2 2026Position history →

Add+233,862+2.0%0.46%$3.88B

Q2 2026Position history →

Add+477,049+5.9%1.5%$2.85B

Viking Global Investors

Q2 2026Position history →

Add+64,155+5.9%1.1%$0.38B

Q2 2026Position history →

Add+4,349+0.6%8.7%$0.23B

Adage Capital Management

Q2 2026Position history →

Add+158,200+71.2%0.18%$0.13B

Jensen Investment Management

Q2 2026Position history →

Add+220+0.9%0.21%$0.01B

WCM Investment Management

Q2 2026Position history →

Trim(76,520)(3.9%)1.1%$0.61B

Veritas Asset Management

Q2 2026Position history →

Trim(112,166)(7.4%)8.4%$0.47B

Q2 2026Position history →

Trim(82,000)(10.7%)4.2%$0.23B

First Pacific Advisors

Q2 2026Position history →

Trim(21,891)(3.1%)2.8%$0.23B

Polen Capital Management

Q2 2026Position history →

Trim(1,190,018)(87.9%)0.47%$0.05B

Broad Run Investment Management

Q2 2026Position history →

Trim(507)(0.5%)5.1%$0.03B

Eagle Capital Management

Q2 2026Position history →

Trim(418,377)(90.3%)0.05%$0.01B

Motley Fool Asset Management

Q2 2026Position history →

Trim(1,120)(4.2%)0.33%$0.01B

Bridgewater Associates

Q2 2026Position history →

Trim(4,556)(22.5%)0.02%$0.01B

Cantillon Capital Management

Q2 2026Position history →

Exit(1,095,574)(100.0%)exited$0.35B

Changes compare each manager’s latest 13F with its prior quarter for the same CUSIP. “First observation” rows have no earlier stored filing to compare and are never counted as buys; “Split?” rows moved by a near-whole factor at an unchanged value and are treated as stock splits, not trades. Ending weight is the position after the change, not the size of the change.