Acadian Asset Management Inc.
US ˙ NYSE ˙ US10948W1036

SecurityAAMI / Acadian Asset Management Inc.
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership174,938 shares
Latest Disclosed Value $ 9,520,126
Qube Research & Technologies Ltd reports 1.87% increase in ownership of AAMI / Acadian Asset Management Inc.

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 174,938 shares of Acadian Asset Management Inc. (US:AAMI) valued at $9,520,126 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 171,727 shares of Acadian Asset Management Inc.. This represents a change in shares of 1.87% during the quarter. The current value of the position is $12,641,020 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)
2026-05-15 2026-03-31 13F ACADIAN ASSET MANAGEMENT COM 10948W103 174,938 3,211 1.87 9,520 17.95 0.0106
2026-02-17 2025-12-31 13F ACADIAN ASSET MANAGEMENT COM 10948W103 171,727 6,592 3.99 8,071 1.50 0.0082
2025-11-14 2025-09-30 13F ACADIAN ASSET MANAGEMENT COM 10948W103 165,135 42,100 34.22 7,953 83.44 0.0082
2025-08-14 2025-06-30 13F ACADIAN ASSET MANAGEMENT COM 10948W103 123,035 -63,213 -33.94 4,336 -9.99 0.0044
2025-05-15 2025-03-31 13F ACADIAN ASSET MANAGEMENT COM 10948W103 186,248 -14,056 -7.02 4,816 -8.72 0.0056
2025-02-14 2024-12-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 200,304 200,304 5,276 0.0069
2024-08-14 2024-06-30 13F BRIGHTSPHERE INVT GROUP COM 10948W103 0 -137,887 -100.00 0 -100.00
2024-05-14 2024-03-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 137,887 -28,194 -16.98 3,149 -1.04 0.0050
2024-02-13 2023-12-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 166,081 14,782 9.77 3,182 8.49 0.0062
2023-11-13 2023-09-30 13F BRIGHTSPHERE INVT GROUP COM 10948W103 151,299 117,818 351.90 2,934 318.40 0.0077
2023-08-14 2023-06-30 13F BRIGHTSPHERE INVT GROUP COM 10948W103 33,481 20,879 165.68 701 136.03 0.0026
2023-05-15 2023-03-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 12,602 12,602 297 0.0013
2022-11-14 2022-09-30 13F BRIGHTSPHERE INVT GROUP COM 10948W103 0 -44,597 -100.00 0 -100.00
2022-08-15 2022-06-30 13F BRIGHTSPHERE INVT GROUP COM 10948W103 44,597 44,597 803 0.0059
2022-05-09 2022-03-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 0 -125,416 -100.00 0 -100.00
2022-02-10 2021-12-31 13F/A-1 BRIGHTSPHERE INVT GROUP COM 10948W103 125,416 114,093 1,007.62 3,211 984.80 0.0248
2022-02-01 2021-12-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 125,416 114,093 3,211 0.0248
2021-11-12 2021-09-30 13F BRIGHTSPHERE INVT GROUP COM 10948W103 11,323 11,323 296 0.0037
2021-08-13 2021-06-30 13F BRIGHTSPHERE INVT GROUP COM 10948W103 0 -11,400 -100.00 0 -100.00
2021-05-14 2021-03-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 11,400 -6,503 -36.32 232 -32.75 0.0037
2021-02-16 2020-12-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 17,903 -48,114 -72.88 345 -59.51 0.0049
2020-11-12 2020-09-30 13F BRIGHTSPHERE INVT GROUP COM 10948W103 66,017 66,017 852 0.0122
2020-05-15 2020-03-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 0 -16,429 -100.00 0 -100.00
2020-02-13 2019-12-31 13F BRIGHTSPHERE INVT GROUP COM 10948W103 16,429 16,429 168 0.0053
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.