Acadian Asset Management Inc.
US ˙ NYSE ˙ US10948W1036

SecurityAAMI / Acadian Asset Management Inc.
InstitutionStrs Ohio
Latest Disclosed Ownership14,800 shares
Latest Disclosed Value $ 805,416
Strs Ohio reports 5.73% decrease in ownership of AAMI / Acadian Asset Management Inc.

On April 24, 2026 - Strs Ohio filed a 13F-HR form disclosing ownership of 14,800 shares of Acadian Asset Management Inc. (US:AAMI) valued at $805,416 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 15,700 shares of Acadian Asset Management Inc.. This represents a change in shares of -5.73% during the quarter. The current value of the position is $1,069,448 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)
2026-04-24 2026-03-31 13F ACADIAN ASSET MANAGEMENT COM_STK 10948W103 14,800 -900 -5.73 805 9.23 0.0032
2026-02-02 2025-12-31 13F ACADIAN ASSET MANAGEMENT COM_STK 10948W103 15,700 15,700 738 0.0028
2025-10-30 2025-09-30 13F ACADIAN ASSET MANAGEMENT COM_STK 10948W103 0 -19,300 -100.00 0 -100.00
2025-08-04 2025-06-30 13F ACADIAN ASSET MANAGEMENT COM_STK 10948W103 19,300 -3,200 -14.22 680 17.04 0.0025
2025-05-28 2025-03-31 13F ACADIAN ASSET MANAGEMENT COM_STK 10948W103 22,500 0 0.00 582 -1.86 0.0024
2025-05-28 2024-12-31 13F ACADIAN ASSET MANAGEMENT COM_STK 10948W103 22,500 22,500 593 0.0024
2022-01-24 2021-12-31 13F BRIGHTSPHERE INVESTMENT GROUP COM 10948W103 0 -38,700 -100.00 0 -100.00
2021-10-22 2021-09-30 13F BRIGHTSPHERE INVESTMENT GROUP COM 10948W103 38,700 -4,100 -9.58 1,011 0.90 0.0038
2021-07-26 2021-06-30 13F BRIGHTSPHERE INVESTMENT GROUP COM 10948W103 42,800 -7,900 -15.58 1,002 -3.00 0.0036
2021-04-23 2021-03-31 13F BRIGHTSPHERE INVESTMENT GROUP COM 10948W103 50,700 3,700 7.87 1,033 14.02 0.0039
2021-01-25 2020-12-31 13F BRIGHTSPHERE INVESTMENT GROUP COM 10948W103 47,000 37,500 394.74 906 642.62 0.0035
2020-12-14 2020-09-30 13F BRIGHTSPHERE INVESTMENT GROUP COM 10948W103 9,500 0 0.00 122 3.39 0.0005
2020-07-23 2020-06-30 13F BRIGHTSPHERE INVESTMENT GROUP COM 10948W103 9,500 2,300 31.94 118 156.52 0.0005
2020-04-23 2020-03-31 13F BRIGHTSPHERE INVESTMENT GROUP COM 10948W103 7,200 -30,900 -81.10 46 -88.17 0.0002
2020-01-24 2019-12-31 13F BRIGHTSPHERE INVESTMENT GROUP COM 10948W103 38,100 -30,400 -44.38 389 -42.63 0.0016
2019-10-21 2019-09-30 13F/A-1 BRIGHTSPHERE INVESTMENT GROUP COM 10948W103 68,500 68,500 678 0.0030
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.