ACI Worldwide, Inc.
US ˙ NasdaqGS ˙ US0044981019

SecurityACIW / ACI Worldwide, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership18,270 shares
Latest Disclosed Value $ 749,253
Trexquant Investment LP reports 88.98% decrease in ownership of ACIW / ACI Worldwide, Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 18,270 shares of ACI Worldwide, Inc. (US:ACIW) valued at $749,253 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 165,825 shares of ACI Worldwide, Inc.. This represents a change in shares of -88.98% during the quarter. The current value of the position is $781,956 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 ACI WORLDWIDE COM 004498101 18,270 -147,555 -88.98 749 -90.55 0.0054
2026-02-17 2025-12-31 13F ACI WORLDWIDE COM 004498101 165,825 17,307 11.65 7,928 1.16 0.0707
2025-11-14 2025-09-30 13F ACI WORLDWIDE COM 004498101 148,518 66,996 82.18 7,837 109.43 0.0807
2025-08-12 2025-06-30 13F ACI WORLDWIDE COM 004498101 81,522 -63,407 -43.75 3,743 -52.81 0.0422
2025-05-14 2025-03-31 13F ACI WORLDWIDE COM 004498101 144,929 -106,979 -42.47 7,929 -39.36 0.0922
2025-02-12 2024-12-31 13F ACI WORLDWIDE COM 004498101 251,908 145,640 137.05 13,077 141.75 0.1524
2024-11-12 2024-09-30 13F ACI WORLDWIDE COM 004498101 106,268 35,991 51.21 5,409 94.43 0.0685
2024-08-13 2024-06-30 13F ACI WORLDWIDE COM 004498101 70,277 -71,071 -50.28 2,782 -40.73 0.0424
2024-05-14 2024-03-31 13F ACI WORLDWIDE COM 004498101 141,348 10,706 8.19 4,694 17.44 0.0936
2024-02-09 2023-12-31 13F ACI WORLDWIDE COM 004498101 130,642 130,642 3,998 0.0900
2022-08-11 2022-06-30 13F ACI WORLDWIDE COM 004498101 0 -41,489 -100.00 0 -100.00
2022-05-13 2022-03-31 13F ACI WORLDWIDE COM 004498101 41,489 -11,930 -22.33 1,306 -29.56 0.0613
2022-02-14 2021-12-31 13F ACI WORLDWIDE COM 004498101 53,419 53,419 1,854 0.1145
2020-11-06 2020-09-30 13F ACI WORLDWIDE COM 004498101 0 -8,117 -100.00 0 -100.00
2020-08-07 2020-06-30 13F ACI WORLDWIDE COM 004498101 8,117 8,117 219 0.0152
2019-08-09 2019-06-30 13F ACI WORLDWIDE COM 004498101 0 -49,446 -100.00 0 -100.00
2019-05-13 2019-03-31 13F ACI WORLDWIDE COM 004498101 49,446 49,446 1,625 0.1154
2018-08-07 2018-06-30 13F ACI WORLDWIDE COM 004498101 0 -17,020 -100.00 0 -100.00
2018-05-03 2018-03-31 13F ACI WORLDWIDE COM 004498101 17,020 17,020 404 0.0282
2017-08-01 2017-06-30 13F ACI WORLDWIDE COM 004498101 0 -9,708 -100.00 0 -100.00
2017-05-08 2017-03-31 13F ACI WORLDWIDE COM 004498101 9,708 9,708 208 0.0267
2016-11-10 2016-09-30 13F ACI WORLDWIDE COM 004498101 0 -33,687 -100.00 0 -100.00
2016-08-10 2016-06-30 13F ACI WORLDWIDE COM 004498101 33,687 33,687 0.00 657 0.0863
2016-05-11 2016-03-31 13F ACI WORLDWIDE COM 004498101 0 -15,470 -100.00 0 -100.00
2016-02-10 2015-12-31 13F ACI WORLDWIDE COM 004498101 15,470 15,470 331 0.0292
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.