Affiliated Managers Group, Inc.
US ˙ NYSE ˙ US0082521081

SecurityAMG / Affiliated Managers Group, Inc.
InstitutionFirst Horizon Advisors, Inc.
Latest Disclosed Ownership194 shares
Latest Disclosed Value $ 38,173
First Horizon Advisors, Inc. ownership in AMG / Affiliated Managers Group, Inc.

On August 6, 2025 - First Horizon Advisors, Inc. filed a 13F-HR form disclosing ownership of 194 shares of Affiliated Managers Group, Inc. (US:AMG) valued at $38,173 USD as of June 30, 2025. The entity filed a previous 13F-HR on April 28, 2025 disclosing 194 shares of Affiliated Managers Group, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $65,341 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)
2025-08-06 2025-06-30 13F AFFILIATED MANAGERS GROUP INC COM COMMON STOCK 008252108 194 0 0.00 38 18.75 0.0010
2025-04-28 2025-03-31 13F AFFILIATED MANAGERS GROUP INC COM COMMON STOCK 008252108 194 0 0.00 33 -8.57 0.0009
2025-02-03 2024-12-31 13F AFFILIATED MANAGERS GROUP INC COM COMMON STOCK 008252108 194 -17 -8.06 36 -5.41 0.0010
2024-11-08 2024-09-30 13F AFFILIATED MANAGERS GROUP INC COM COMMON STOCK 008252108 211 0 0.00 38 15.63 0.0010
2024-07-19 2024-06-30 13F AFFILIATED MANAGERS GROUP INC COM COMMON STOCK 008252108 211 -5 -2.31 33 -11.11 0.0010
2024-04-26 2024-03-31 13F AFFILIATED MANAGERS GROUP INC COM COMMON STOCK 008252108 216 0 0.00 36 12.50 0.0011
2024-02-06 2023-12-31 13F AFFILIATED MANAGERS GROUP INC COM COMMON STOCK 008252108 216 0 0.00 33 14.29 0.0011
2023-10-27 2023-09-30 13F AFFILIATED MANAGERS GROUP INC COM COMMON STOCK 008252108 216 -58 -21.17 28 -31.71 0.0010
2023-08-03 2023-06-30 13F AFFILIATED MANAGERS GROUP INC COM COMMON STOCK 008252108 274 0 0.00 41 5.13 0.0014
2023-05-15 2023-03-31 13F AFFILIATED MANAGERS GROUP INC COM COMMON STOCK 008252108 274 55 25.11 39 14.71 0.0014
2023-02-10 2022-12-31 13F AFFILIATED MANAGERS GROUP INC COM COMMON STOCK 008252108 219 0 0.00 35 41.67 0.0013
2022-11-09 2022-09-30 13F AFFILIATED MANAGERS GROUP INC COM COMMON STOCK 008252108 219 12 5.80 24 0.00 0.0010
2022-08-02 2022-06-30 13F AFFILIATED MANAGERS GROUP INC COM COMMON STOCK 008252108 207 150 263.16 24 200.00 0.0009
2022-05-10 2022-03-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 57 46 418.18 8 300.00 0.0003
2022-02-09 2021-12-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 11 0 0.00 2 0.00 0.0001
2021-11-15 2021-09-30 13F/A-1 AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 11 0 0.00 2 0.00 0.0001
2021-11-09 2021-09-30 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 11 0 2 0.0000
2021-08-09 2021-06-30 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 11 0 0.00 2 0.00 0.0001
2021-05-11 2021-03-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 11 0 0.00 2 100.00 0.0001
2021-02-11 2020-12-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 11 11 1 0.0001
2018-11-08 2018-09-30 13F/A-2 AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 0 -82 -100.00 0 -100.00
2018-08-06 2018-06-30 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 82 0 0.00 12 -7.69 0.0010
2018-05-02 2018-03-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 82 0 0.00 13 -18.75 0.0013
2018-01-25 2017-12-31 13F AFFILIATED0MANAGERS0GROUP COMMON0STOCK 008252108 82 0 0.00 16 6.67 0.0015
2017-11-09 2017-09-30 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 82 0 0.00 15 7.14 0.0015
2017-08-14 2017-06-30 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 82 -225 -73.29 14 -72.00 0.0015
2017-05-02 2017-03-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 307 -54 -14.96 50 -3.85 0.0057
2017-02-13 2016-12-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 361 0 0.00 52 0.00 0.0066
2016-10-28 2016-09-30 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 361 82 29.39 52 36.84 0.0066
2016-07-29 2016-06-30 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 279 0 0.00 38 -15.56 0.0052
2016-05-09 2016-03-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 279 75 36.76 45 36.36 0.0050
2016-02-08 2015-12-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 204 42 25.93 33 17.86 0.0059
2015-11-06 2015-09-30 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 162 -7 -4.14 28 -24.32 0.0043
2015-08-03 2015-06-30 13F/A-1 AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 169 3 1.81 37 2.78 0.0054
2015-07-31 2015-06-30 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 169 37
2015-05-04 2015-03-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 166 166 0.00 36 0.0052
2015-02-05 2014-12-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 0 -132 -100.00 0 -100.00
2014-11-13 2014-09-30 13F/A-1 AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 132 7 5.60 26 8.33 0.0041
2014-11-13 2014-09-30 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 132 7 26 0.0026
2014-08-07 2014-06-30 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 125 0 0.00 24 0.00 0.0035
2014-05-02 2014-03-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 125 0 0.00 24 4.35 0.0034
2014-02-07 2013-12-31 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 125 0 0.00 23 0.00 0.0034
2013-11-15 2013-09-30 13F AFFILIATED MANAGERS GROUP COMMON STOCK 008252108 125 -31 -19.87 23 -11.54 0.0037
2014-02-25 2013-06-30 13F AFFILIATED MANAGERS Common Stock 008252108 156 0 0.00 26 8.33 0.0133
2014-02-25 2013-03-31 13F AFFILIATED MANAGERS Common Stock 008252108 156 19 13.87 24 33.33 0.0135
2014-02-25 2012-12-31 13F AFFILIATED MANAGERS Common Stock 008252108 137 -9 -6.16 18 0.00 0.0128
2014-02-25 2012-09-30 13F AFFILIATED MANAGERS COMMON STOCK 008252108 146 -150 -50.68 18 -53.85 0.0145
2014-02-25 2012-06-30 13F AFFILIATED MANAGERS COMMON STOCK 008252108 296 -314 -51.48 39 -48.00 0.0308
2014-02-25 2012-03-31 13F AFFILIATED MANAGERS COMMON STOCK 008252108 610 610 75 0.0620
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.