Affiliated Managers Group, Inc.
DE ˙ DB ˙ US0082521081
270,00 € ↑14,00 (5,47%)
2026-06-04
AKTIENPREIS
SecurityDE:AFS / Affiliated Managers Group, Inc.
InstitutionSepio Capital, LP
Latest Disclosed Ownership3,775 shares
Latest Disclosed Value $ 1,044,543
Sepio Capital, LP reports 42.56% increase in ownership of AFS / Affiliated Managers Group, Inc.

On May 13, 2026 - Sepio Capital, LP filed a 13F-HR form disclosing ownership of 3,775 shares of Affiliated Managers Group, Inc. (DE:AFS) valued at $890,900 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 2,648 shares of Affiliated Managers Group, Inc.. This represents a change in shares of 42.56% during the quarter. The current value of the position is $1,019,250 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)
2026-05-13 2026-03-31 13F AFFILIATED MANAGERS GROUP COM 008252108 3,775 1,127 42.56 1,045 36.83 0.0567
2026-02-12 2025-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,648 -48 -1.78 763 18.85 0.0418
2025-11-13 2025-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,696 8 0.30 643 21.59 0.0380
2025-08-13 2025-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,688 -3,712 -58.00 529 -50.88 0.0376
2025-05-15 2025-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 6,400 -65 -1.01 1,075 -10.04 0.0851
2025-02-13 2024-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 6,465 -633 -8.92 1,196 -5.31 0.0957
2024-11-14 2024-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 7,098 -4 -0.06 1,262 13.69 0.0983
2024-08-15 2024-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 7,102 -171 -2.35 1,110 -8.87 0.1018
2024-05-15 2024-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 7,273 -811 -10.03 1,218 -0.49 0.1045
2024-02-09 2023-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 8,084 -324 -3.85 1,224 11.78 0.1028
2023-11-08 2023-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 8,408 0 0.00 1,096 -13.10 0.0946
2023-08-08 2023-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 8,408 -226 -2.62 1,260 2.52 0.1023
2023-05-10 2023-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 8,634 -2,395 -21.72 1,230 -29.65 0.1134
2023-02-03 2022-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 11,029 -365 -3.20 1,747 37.13 0.1510
2022-10-28 2022-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 11,394 -140 -1.21 1,274 -5.28 0.1265
2022-07-26 2022-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 11,534 282 2.51 1,345 -15.20 0.1351
2022-05-09 2022-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 11,252 -619 -5.21 1,586 -18.79 0.1391
2022-01-25 2021-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 11,871 -1,118 -8.61 1,953 -0.51 0.1443
2021-11-03 2021-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 12,989 -444 -3.31 1,963 -5.26 0.1618
2021-07-29 2021-06-30 13F/A-1 AFFILIATED MANAGERS GROUP IN COM 008252108 13,433 -3 -0.02 2,072 3.50 0.1707
2021-07-26 2021-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 13,433 -3 2,072 0.1786
2021-05-10 2021-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 13,436 663 5.19 2,002 54.12 0.1844
2021-02-10 2020-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 12,773 4,848 61.17 1,299 139.67 0.1121
2020-11-12 2020-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 7,925 1,951 32.66 542 21.80 0.0589
2020-08-04 2020-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 5,974 1,957 48.72 445 86.97 0.0523
2020-04-29 2020-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 4,017 0 0.00 238 -30.00 0.0315
2020-02-06 2019-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 4,017 -136 -3.27 340 -1.73 0.0322
2019-10-25 2019-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 4,153 243 6.21 346 -3.89 0.0357
2019-08-08 2019-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 3,910 0 0.00 360 -14.08 0.0486
2019-06-21 2019-03-31 13F/A-1 AFFILIATED MANAGERS GROUP IN COM 008252108 3,910 470 13.66 419 25.07 0.0565
2019-05-14 2019-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 3,910 470 419 0.0620
2019-02-13 2018-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 3,440 3,440 335 0.0244
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.