Affiliated Managers Group, Inc.
DE ˙ DB ˙ US0082521081
270,00 € ↑14,00 (5,47%)
2026-06-04
AKTIENPREIS
SecurityDE:AFS / Affiliated Managers Group, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership348,882 shares
Latest Disclosed Value $ 96,535,650
Northern Trust Corp reports 7.12% increase in ownership of AFS / Affiliated Managers Group, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 348,882 shares of Affiliated Managers Group, Inc. (DE:AFS) valued at $82,336,152 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 325,696 shares of Affiliated Managers Group, Inc.. This represents a change in shares of 7.12% during the quarter. The current value of the position is $94,198,140 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)
2026-05-14 2026-03-31 13F AFFILIATED MANAGERS GROUP COM 008252108 348,882 23,186 7.12 96,536 2.82 0.0026
2026-02-17 2025-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 325,696 -8,672 -2.59 93,892 17.77 0.0120
2025-11-14 2025-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 334,368 -783 -0.23 79,723 20.89 0.0102
2025-08-13 2025-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 335,151 -50,141 -13.01 65,948 1.86 0.0091
2025-05-13 2025-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 385,292 35,681 10.21 64,741 0.14 0.0096
2025-02-14 2024-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 349,611 26,990 8.37 64,650 12.71 0.0092
2024-11-13 2024-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 322,621 5,829 1.84 57,362 15.90 0.0094
2024-08-14 2024-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 316,792 12,852 4.23 49,492 -2.77 0.0083
2024-05-14 2024-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 303,940 5,300 1.77 50,901 12.56 0.0088
2024-02-13 2023-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 298,640 -9,712 -3.15 45,220 12.52 0.0082
2023-11-13 2023-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 308,352 -74,940 -19.55 40,191 -30.04 0.0078
2023-08-11 2023-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 383,292 11,475 3.09 57,452 8.49 0.0110
2023-05-15 2023-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 371,817 5,407 1.48 52,954 -8.78 0.0105
2023-02-13 2022-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 366,410 14,707 4.18 58,050 47.57 0.0122
2022-11-14 2022-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 351,703 -9,527 -2.64 39,338 -6.60 0.0090
2022-08-12 2022-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 361,230 -22,914 -5.96 42,120 -22.21 0.0090
2022-05-13 2022-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 384,144 7,134 1.89 54,146 -12.70 0.0095
2022-02-08 2021-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 377,010 4,953 1.33 62,022 10.33 0.0102
2021-11-15 2021-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 372,057 -12,604 -3.28 56,214 -5.23 0.0100
2021-08-13 2021-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 384,661 -7,430 -1.89 59,318 1.51 0.0104
2021-05-12 2021-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 392,091 2,206 0.57 58,434 47.37 0.0109
2021-02-11 2020-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 389,885 202 0.05 39,652 48.80 0.0077
2020-11-16 2020-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 389,683 -20,485 -4.99 26,647 -12.87 0.0058
2020-08-14 2020-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 410,168 -23,789 -5.48 30,582 19.16 0.0072
2020-05-14 2020-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 433,957 16,755 4.02 25,664 -27.41 0.0074
2020-02-14 2019-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 417,202 -152,067 -26.71 35,354 -25.49 0.0079
2019-11-13 2019-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 569,269 -5,430 -0.94 47,449 -10.39 0.0114
2019-08-13 2019-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 574,699 353 0.06 52,953 -13.92 0.0126
2019-05-13 2019-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 574,346 1,532 0.27 61,518 10.22 0.0152
2019-02-12 2018-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 572,814 5,173 0.91 55,814 -28.08 0.0157
2018-11-14 2018-09-30 13F AFFILIATED MANAGERS GROUP COM 008252108 567,641 -1,826 -0.32 77,609 -8.33 0.0190
2018-09-18 2018-06-30 13F/A-1 AFFILIATED MANAGERS GROUP COM 008252108 569,467 -12,021 -2.07 84,661 -23.20 0.0215
2018-08-14 2018-06-30 13F AFFILIATED MANAGERS GROUP COM 008252108 573,102 -8,386 85,201
2018-05-09 2018-03-31 13F AFFILIATED MANAGERS GROUP COM 008252108 581,488 -23,115 -3.82 110,237 -11.17 0.0287
2018-02-14 2017-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 604,603 -21,007 -3.36 124,095 4.49 0.0314
2017-11-13 2017-09-30 13F AFFILIATED MANAGERS GROUP COM 008252108 625,610 25,643 4.27 118,759 19.34 0.0310
2017-08-11 2017-06-30 13F AFFILIATED MANAGERS GROUP COM 008252108 599,967 3,280 0.55 99,510 1.73 0.0278
2017-05-12 2017-03-31 13F AFFILIATED MANAGERS GROUP COM 008252108 596,687 6,255 1.06 97,822 14.03 0.0282
2017-02-13 2016-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 590,432 -119,853 -16.87 85,789 -16.53 0.0263
2016-11-09 2016-09-30 13F AFFILIATED MANAGERS GROUP COM 008252108 710,285 -11,975 -1.66 102,778 1.09 0.0320
2016-08-12 2016-06-30 13F AFFILIATED MANAGERS GROUP COM 008252108 722,260 -10,218 -1.39 101,673 -15.57 0.0330
2016-08-19 2016-03-31 13F/A-1 AFFILIATED MANAGERS GROUP COM 008252108 732,478 -2,852 -0.39 120,426 2.51 0.0399
2016-05-13 2016-03-31 13F Affiliated Managers COMM 008252108 732,475 118,955
2016-02-12 2015-12-31 13F Affiliated Managers COMM 008252108 735,330 -57,084 -7.20 117,477 -13.30 0.0389
2015-11-12 2015-09-30 13F AFFILIATED MANAGERS GROUP COM 008252108 792,414 174,255 28.19 135,494 0.27 0.0452
2015-08-13 2015-06-30 13F AFFILIATED MANAGERS GROUP COM 008252108 618,159 -214,754 -25.78 135,130 -24.46 0.0916
2015-08-13 2015-06-30 13F Affiliated Managers COMM 000825210 215,292 -617,621 47,063 0.0319
2015-05-14 2015-03-31 13F Affiliated Managers COMM 008252108 832,913 -18,175 -2.14 178,893 -0.96 0.0538
2015-02-12 2014-12-31 13F Affiliated Managers COM 008252108 851,088 22,545 2.72 180,635 8.81 0.0545
2014-11-13 2014-09-30 13F Affiliated Managers COMM 008252108 828,543 115,074 16.13 166,006 13.28 0.0521
2014-08-14 2014-06-30 13F AFFILIATED MANAGERS GROUP com 008252108 713,469 -13,648 -1.88 146,546 0.75 0.0457
2014-05-14 2014-03-31 13F AFFILIATED MANAGERS GROUP COMM 008252108 727,117 148,143 25.59 145,460 15.84 0.0458
2014-02-21 2013-12-31 13F/A-1 AFFILIATED MANAGERS GROUP COM 008252108 578,974 1,123 0.19 125,569 18.98 0.0403
2014-02-12 2013-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 578,974 125,569
2013-11-13 2013-09-30 13F AFFILIATED MANAGERS GROUP COM 008252108 577,851 -7,313 -1.25 105,539 10.02 0.0372
2013-08-09 2013-06-30 13F AFFILIATED MANAGERS GROUP COM 008252108 585,164 585,164 95,931 0.0348
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.