First Trust Exchange-Traded AlphaDEX Fund - First Trust Large Cap Core AlphaDEX Fund
US ˙ NasdaqGM ˙ US33734K1097

SecurityFEX / First Trust Exchange-Traded AlphaDEX Fund - First Trust Large Cap Core AlphaDEX Fund
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership22,078 shares
Latest Disclosed Value $ 2,691,920
Citadel Advisors Llc reports 376.74% increase in ownership of FEX / First Trust Exchange-Traded AlphaDEX Fund - First Trust Large Cap Core AlphaDEX Fund

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 22,078 shares of First Trust Exchange-Traded AlphaDEX Fund - First Trust Large Cap Core AlphaDEX Fund (US:FEX) valued at $2,691,920 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,631 shares of First Trust Exchange-Traded AlphaDEX Fund - First Trust Large Cap Core AlphaDEX Fund. This represents a change in shares of 376.74% during the quarter. The current value of the position is $3,007,542 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 FIRST TR EXCHANGE-TRADED ALP COM SHS 33734K109 22,078 17,447 376.74 2,692 390.16 0.0004
2026-02-17 2025-12-31 13F FIRST TR EXCHANGE-TRADED ALP COM SHS 33734K109 4,631 -18,418 -79.91 549 -79.61 0.0001
2025-11-14 2025-09-30 13F FIRST TR EXCHANGE-TRADED ALP COM SHS 33734K109 23,049 -6,478 -21.94 2,693 -17.07 0.0004
2025-08-14 2025-06-30 13F FIRST TR EXCHANGE-TRADED ALP COM SHS 33734K109 29,527 29,527 3,247 0.0006
2025-05-15 2025-03-31 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 0 -16,265 -100.00 0 -100.00
2025-02-14 2024-12-31 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 16,265 4,245 35.32 1,696 35.46 0.0003
2024-11-14 2024-09-30 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 12,020 -18,831 -61.04 1,252 -58.16 0.0002
2024-08-14 2024-06-30 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 30,851 -5,746 -15.70 2,992 -17.60 0.0006
2024-05-15 2024-03-31 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 36,597 4,519 14.09 3,632 25.55 0.0007
2024-02-14 2023-12-31 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 32,078 6,398 24.91 2,892 38.90 0.0006
2023-11-14 2023-09-30 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 25,680 20,005 352.51 2,083 337.39 0.0004
2023-08-14 2023-06-30 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 5,675 5,675 477 0.0001
2023-05-15 2023-03-31 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 0 -9,502 -100.00 0 -100.00
2023-02-14 2022-12-31 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 9,502 9,502 761 0.0002
2022-11-14 2022-09-30 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 0 -14,113 -100.00 0 -100.00
2022-08-15 2022-06-30 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 14,113 -18,917 -57.27 1,074 -63.17 0.0003
2022-05-16 2022-03-31 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 33,030 -6,370 -16.17 2,916 -19.85 0.0006
2022-02-14 2021-12-31 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 39,400 -7,605 -16.18 3,638 -9.30 0.0007
2021-11-15 2021-09-30 13F FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 47,005 35,910 323.66 4,011 320.88 0.0008
2021-08-16 2021-06-30 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 11,095 -6,249 -36.03 953 -31.39 0.0002
2021-05-21 2021-03-31 13F/A-1 FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 17,344 -33,698 -66.02 1,389 -62.94 0.0003
2021-05-17 2021-03-31 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 17,344 -33,698 1,389 0.0003
2021-02-16 2020-12-31 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 51,042 29,594 137.98 3,748 175.79 0.0010
2020-11-16 2020-09-30 13F FIRST TR LRGE CP CORE ALPHA COM SHS 33734K109 21,448 12,179 131.39 1,359 146.20 0.0004
2020-08-14 2020-06-30 13F FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 9,269 -73,800 -88.84 552 -86.05 0.0002
2020-05-15 2020-03-31 13F FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 83,069 72,945 720.52 3,957 499.55 0.0018
2020-02-14 2019-12-31 13F FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 10,124 -52,519 -83.84 660 -82.70 0.0003
2019-11-14 2019-09-30 13F FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 62,643 29,751 90.45 3,815 89.33 0.0018
2019-08-14 2019-06-30 13F FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 32,892 -17,984 -35.35 2,015 -33.50 0.0009
2019-05-15 2019-03-31 13F FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 50,876 50,876 3,030 0.0015
2019-02-14 2018-12-31 13F FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 0 -42,405 -100.00 0 -100.00
2018-11-13 2018-09-30 13F FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 42,405 42,405 2,649 0.0012
2018-02-09 2017-12-31 13F FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 0 -5,576 -100.00 0 -100.00
2017-11-09 2017-09-30 13F FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 5,576 -9,206 -62.28 306 -61.07 0.0002
2017-08-11 2017-06-30 13F FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 14,782 14,782 0.00 786 0.0007
2017-02-10 2016-12-31 13F FIRST TRUST LARGE CAP CORE A Cmn 33734K109 0 -41,757 -100.00 0 -100.00
2017-01-31 2016-09-30 13F/A-1 FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 41,757 -4,632 -9.99 1,951 -6.65 0.0020
2016-11-10 2016-09-30 13F FIRST TRUST LARGE CAP CORE A Cmn 33734K109 41,757 1,951
2017-01-31 2016-06-30 13F/A-1 FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 46,389 46,389 0.00 2,090 0.0023
2016-08-12 2016-06-30 13F FIRST TRUST LARGE CAP CORE A Cmn 33734K109 46,389 2,090
2017-01-31 2016-03-31 13F/A-1 FIRST TRUST LARGE CAP CORE A Cmn 33734K109 0 -78,365 -100.00 0 -100.00
2017-01-31 2015-12-31 13F/A-1 FIRST TR LRGE CP CORE ALPHA Cmn 33734K109 78,365 34,665 79.32 3,390 85.45 0.0037
2016-02-12 2015-12-31 13F FIRST TRUST LARGE CAP CORE A Cmn 33734K109 78,365 3,390
2015-11-16 2015-09-30 13F FIRST TRUST LARGE CAP CORE A Cmn 33734K109 43,700 43,700 0.00 1,828 0.0018
2015-08-14 2015-06-30 13F FIRST TRUST LARGE CAP CORE A Cmn 33734K109 0 -15,547 -100.00 0 -100.00
2015-06-26 2015-03-31 13F/A-1 FIRST TRUST LARGE CAP CORE A Cmn 33734K109 15,547 15,547 724 0.0049
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.