Affiliated Managers Group, Inc.
US ˙ NYSE ˙ US0082521081

SecurityAMG / Affiliated Managers Group, Inc.
InstitutionHancock Whitney Corp
Latest Disclosed Ownership763 shares
Latest Disclosed Value $ 224,114
Hancock Whitney Corp reports 3.30% decrease in ownership of AMG / Affiliated Managers Group, Inc.

On May 15, 2026 - Hancock Whitney Corp filed a 13F-HR form disclosing ownership of 763 shares of Affiliated Managers Group, Inc. (US:AMG) valued at $211,122 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 789 shares of Affiliated Managers Group, Inc.. This represents a change in shares of -3.30% during the quarter. The current value of the position is $237,758 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F AFFILIATED MANAGERS GROUP COM 008252108 763 -26 -3.30 224 -1.32 0.0037
2026-02-17 2025-12-31 13F AFFILIATED MANA COM 008252108 789 -1,066 -57.47 227 -48.64 0.0041
2025-11-17 2025-09-30 13F AFFILIATED MANAGERS GROUP COM 008252108 1,855 -13 -0.70 442 20.44 0.0080
2025-08-14 2025-06-30 13F AFFILIATED MANAGERS GROUP COM 008252108 1,868 45 2.47 368 19.93 0.0070
2025-05-15 2025-03-31 13F AFFILIATED MANAGERS GROUP COM 008252108 1,823 -109 -5.64 306 -14.29 0.0100
2025-02-14 2024-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 1,932 -33 -1.68 357 2.29 0.0113
2024-11-13 2024-09-30 13F AFFILIATED MANAGERS GROUP COM 008252108 1,965 -26 -1.31 349 12.22 0.0113
2024-08-13 2024-06-30 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 1,991 -1,661 -45.48 311 -49.10 0.0106
2024-05-16 2024-03-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 3,652 -4,458 -54.97 612 -50.24 0.0211
2024-02-14 2023-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 8,110 -3,840 -32.13 1,228 -21.13 0.0456
2023-11-13 2023-09-30 13F AFFILIATED MANAGERS GROUP COM 008252108 11,950 -101,880 -89.50 1,558 -90.87 0.0642
2023-11-13 2023-06-30 13F/A-1 AFFILIATED MANAGERS GROUP COM 008252108 113,830 -5,483 -4.60 17,061 0.40 0.6708
2023-08-10 2023-06-30 13F AFFILIATED MANAGERS GROUP COM 008252108 113,830 -5,483 17 0.6708
2023-11-13 2023-03-31 13F/A-2 AFFILIATED MANAGERS GROUP COM 008252108 119,313 2,966 2.55 16,993 -7.81 0.6818
2023-05-16 2023-03-31 13F/A-1 AFFILIATED MANAGERS GROUP COM 008252108 119,313 2,966 17 0.3633
2023-05-15 2023-03-31 13F AFFILIATED MANAGERS GROUP COM 008252108 116,347 0 18 0.3820
2023-11-13 2022-12-31 13F/A-1 AFFILIATED MANAGERS GROUP COM 008252108 116,347 2,739 2.41 18,432 45.05 0.7115
2023-02-03 2022-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 116,347 2,739 18 0.7115
2022-10-26 2022-09-30 13F AFFILIATED MANAGERS GROUP COM 008252108 113,608 -2,054 -1.78 12,707 -5.78 0.5432
2022-08-08 2022-06-30 13F AFFILIATED MANAGERS GROUP COM 008252108 115,662 -8,351 -6.73 13,487 -22.84 0.5394
2022-05-12 2022-03-31 13F AFFILIATED MANAGERS GROUP COM 008252108 124,013 42,280 51.73 17,480 30.00 0.5950
2022-01-25 2021-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 81,733 76,391 1,430.01 13,446 1,564.11 0.4226
2021-11-04 2021-09-30 13F AFFILIATED MANAGERS GROUP COM 008252108 5,342 -12,921 -70.75 808 -71.31 0.0282
2021-08-09 2021-06-30 13F AFFILIATED MANAGERS GROUP COM 008252108 18,263 4,956 37.24 2,816 42.01 0.0899
2021-05-14 2021-03-31 13F AFFILIATED MANAGERS GROUP COM 008252108 13,307 -59 -0.44 1,983 45.92 0.0673
2021-02-09 2020-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 13,366 13,366 1,359 0.0454
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.