Acadian Asset Management Inc.
US ˙ NYSE ˙ US10948W1036

SecurityAAMI / Acadian Asset Management Inc.
InstitutionUs Bancorp \de\
Latest Disclosed Ownership646 shares
Latest Disclosed Value $ 35,155
Us Bancorp \de\ reports 2.05% increase in ownership of AAMI / Acadian Asset Management Inc.

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 646 shares of Acadian Asset Management Inc. (US:AAMI) valued at $35,155 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 633 shares of Acadian Asset Management Inc.. This represents a change in shares of 2.05% during the quarter. The current value of the position is $48,980 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 ACADIAN ASSET MANAGEMENT COM 10948W103 646 13 2.05 35 20.69 0.0000
2026-01-30 2025-12-31 13F ACADIAN ASSET MANAGEMENT COM 10948W103 633 0 0.00 30 -3.33 0.0000
2025-11-12 2025-09-30 13F ACADIAN ASSET MANAGEMENT COM 10948W103 633 15 2.43 30 42.86 0.0000
2025-07-24 2025-06-30 13F ACADIAN ASSET MANAGEMENT COM 10948W103 618 -16 -2.52 22 31.25 0.0000
2025-05-08 2025-03-31 13F ACADIAN ASSET MANAGEMENT COM 10948W103 634 -8,901 -93.35 16 -93.63 0.0000
2025-02-05 2024-12-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 9,535 0 0.00 251 3.72 0.0003
2024-10-28 2024-09-30 13F BRIGHTSPHERE INVT GROUP COM 10948W103 9,535 -3,077 -24.40 242 -13.26 0.0003
2024-08-07 2024-06-30 13F BRIGHTSPHERE INVT GROUP COM 10948W103 12,612 -262 -2.04 280 -5.10 0.0004
2024-05-08 2024-03-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 12,874 6,669 107.48 294 149.15 0.0004
2024-02-09 2023-12-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 6,205 4,397 243.20 119 237.14 0.0002
2023-11-03 2023-09-30 13F BRIGHTSPHERE INVT GROUP COM 10948W103 1,808 -1,331 -42.40 35 -46.15 0.0001
2023-08-10 2023-06-30 13F BRIGHTSPHERE INVT GROUP COM 10948W103 3,139 290 10.18 66 -2.99 0.0001
2023-05-09 2023-03-31 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 2,849 -566 -16.57 67 -4.29 0.0001
2023-02-13 2022-12-31 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 3,415 146 4.47 70 45.83 0.0001
2022-10-27 2022-09-30 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 3,269 359 12.34 48 -7.69 0.0001
2022-08-01 2022-06-30 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 2,910 -543 -15.73 52 -38.10 0.0001
2022-05-11 2022-03-31 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 3,453 -949 -21.56 84 -25.66 0.0001
2022-02-11 2021-12-31 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 4,402 26 0.59 113 -1.74 0.0002
2021-11-10 2021-09-30 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 4,376 2,488 131.78 115 161.36 0.0002
2021-08-05 2021-06-30 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 1,888 274 16.98 44 33.33 0.0001
2021-04-28 2021-03-31 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 1,614 0 0.00 33 6.45 0.0001
2021-02-04 2020-12-31 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 1,614 0 0.00 31 47.62 0.0001
2020-11-10 2020-09-30 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 1,614 0 0.00 21 5.00 0.0001
2020-08-07 2020-06-30 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 1,614 1,614 20 0.0001
2020-05-12 2020-03-31 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 0 -2,444 -100.00 0 -100.00
2020-02-04 2019-12-31 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 2,444 0 0.00 25 4.17 0.0001
2019-11-08 2019-09-30 13F BRIGHTSPHERE INVESTMENT GROU COMMON STOCK 10948W103 2,444 2,444 24 0.0001
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.