Affiliated Managers Group, Inc.
DE ˙ DB ˙ US0082521081
256,00 € ↓ -2,00 (-0,78%)
2026-06-03
CENA AKCJI
SecurityDE:AFS / Affiliated Managers Group, Inc.
InstitutionHarbor Advisors LLC
Latest Disclosed Ownership2,500 shares
Latest Disclosed Value $ 691,750
Harbor Advisors LLC ownership in AFS / Affiliated Managers Group, Inc.

On May 7, 2026 - Harbor Advisors LLC filed a 13F-HR form disclosing ownership of 2,500 shares of Affiliated Managers Group, Inc. (DE:AFS) valued at $590,000 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 2,500 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 $640,000 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)
2026-05-07 2026-03-31 13F AFFILIATED MANAGERS GROUP COM 008252108 2,500 0 0.00 692 -4.03 0.0999
2026-01-30 2025-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 2,500 0 0.00 721 20.81 0.1082
2025-11-12 2025-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 596 21.38 0.0919
2025-08-13 2025-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 492 16.90 0.0805
2025-05-15 2025-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 420 -9.09 0.0729
2025-02-11 2024-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 462 4.05 0.0726
2024-11-14 2024-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 444 13.85 0.0744
2024-07-30 2024-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 391 -6.70 0.0716
2024-05-01 2024-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 419 10.58 0.0769
2024-02-01 2023-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 379 16.31 0.0724
2023-11-07 2023-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 326 -13.10 0.0698
2023-08-15 2023-06-30 13F/A-1 AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 375 5.06 0.0796
2023-08-01 2023-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 375
2023-05-11 2023-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 356 -10.10 0.0833
2023-02-13 2022-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 396 41.43 0.0989
2022-11-07 2022-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 280 -4.11 0.0753
2022-08-05 2022-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 292 -17.05 0.0709
2022-05-16 2022-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 352 -14.36 0.0722
2022-02-14 2021-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 411 8.73 0.0764
2021-10-29 2021-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 378 -2.07 0.0756
2021-08-03 2021-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 386 3.49 0.0763
2021-05-04 2021-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 373 46.85 0.0827
2021-02-11 2020-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 2,500 254 0.0569
2020-05-21 2020-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 0 -2,500 -100.00 0 -100.00
2020-02-13 2019-12-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 212 1.92 0.0574
2019-11-13 2019-09-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 208 -9.57 0.0595
2019-08-14 2019-06-30 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 230 -14.18 0.0687
2019-05-15 2019-03-31 13F AFFILIATED MANAGERS GROUP IN COM 008252108 2,500 0 0.00 268 9.84 0.0864
2019-02-15 2018-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 2,500 0 0.00 244 -28.65 0.0949
2018-11-14 2018-09-30 13F AFFILIATED MANAGERS GROUP COM 008252108 2,500 0 0.00 342 -8.06 0.1062
2018-08-07 2018-06-30 13F AFFILIATED MANAGERS GROUP COM 008252108 2,500 0 0.00 372 -21.52 0.1198
2018-05-11 2018-03-31 13F AFFILIATED MANAGERS GROUP COM 008252108 2,500 0 0.00 474 -8.14 0.1596
2018-02-07 2017-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 2,500 0 0.00 516 8.63 0.1753
2017-10-26 2017-09-30 13F AFFILIATED MANAGERS GROUP COM 008252108 2,500 0 0.00 475 14.46 0.1739
2017-08-14 2017-06-30 13F AFFILIATED MANAGERS GROUP COM 008252108 2,500 0 0.00 415 1.22 0.1642
2017-05-15 2017-03-31 13F AFFILIATED MANAGERS GROUP COM 008252108 2,500 0 0.00 410 12.95 0.1745
2017-01-30 2016-12-31 13F AFFILIATED MANAGERS GROUP COM 008252108 2,500 2,500 363 0.1741
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.