AON CORP Aon Corp is a security (CUSIP 037389AK9) tracked across SEC portfolio filings. 2 registered fund positions totaling $2.5M via N-PORT as of 2026-03-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| Nuveen Preferred & Income Securities Fund | Nuveen Preferred & Income Securities Fund | $2.4M | 16.73% |
| Short Duration Income Portfolio | LORD ABBETT SERIES FUND INC | $103K | 6.53% |