Acadian Asset Management Inc.
US ˙ NYSE ˙ US10948W1036

SecurityAAMI / Acadian Asset Management Inc.
InstitutionLsv Asset Management
Latest Disclosed Ownership82,300 shares
Latest Disclosed Value $ 4,479
Lsv Asset Management ownership in AAMI / Acadian Asset Management Inc.

On May 11, 2026 - Lsv Asset Management filed a 13F-HR form disclosing ownership of 82,300 shares of Acadian Asset Management Inc. (US:AAMI) valued at $4,478,766 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 82,300 shares of Acadian Asset Management Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $6,090,200 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)
2026-05-11 2026-03-31 13F Acadian Asset Management COM 10948W103 82,300 0 0.00 4 33.33 0.0097
2026-02-06 2025-12-31 13F Acadian Asset Management COM 10948W103 82,300 -2,100 -2.49 4 -25.00 0.0084
2025-11-06 2025-09-30 13F Acadian Asset Management COM 10948W103 84,400 6,600 8.48 4 100.00 0.0090
2025-08-11 2025-06-30 13F Acadian Asset Management COM 10948W103 77,800 -6,545 -7.76 3 0.00 0.0064
2025-05-09 2025-03-31 13F Acadian Asset Management COM 10948W103 84,345 84,345 2 0.0052
2022-01-28 2021-12-31 13F Brightsphere Investment Group COM 10948W103 0 -456,611 -100.00 0 -100.00
2021-11-04 2021-09-30 13F Brightsphere Investment Group COM 10948W103 456,611 -418,179 -47.80 11,931 -41.79 0.0216
2021-08-04 2021-06-30 13F Brightsphere Investment Group COM 10948W103 874,790 -67,466 -7.16 20,496 6.73 0.0348
2021-04-30 2021-03-31 13F Brightsphere Investment Group COM 10948W103 942,256 -12,400 -1.30 19,203 4.34 0.0328
2021-02-08 2020-12-31 13F Brightsphere Investment Group COM 10948W103 954,656 80,501 9.21 18,405 63.22 0.0335
2020-10-23 2020-09-30 13F Brightsphere Investment Group COM 10948W103 874,155 -24,604 -2.74 11,276 0.70 0.0231
2020-08-05 2020-06-30 13F Brightsphere Investment Group COM 10948W103 898,759 -5,900 -0.65 11,198 93.74 0.0232
2020-05-07 2020-03-31 13F BrightSphere Investment Group COM 10948W103 904,659 -30,200 -3.23 5,780 -39.50 0.0140
2020-02-10 2019-12-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 934,859 -73,900 -7.33 9,554 -4.42 0.0149
2019-11-07 2019-09-30 13F BRIGHTSPHERE INVT GROUP COM 10948W103 1,008,759 1,008,759 9,996 0.0165
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.