First Trust Exchange-Traded Fund IV - First Trust Senior Loan Fund
US ˙ NasdaqGM ˙ US33738D3098

SecurityFTSL / First Trust Exchange-Traded Fund IV - First Trust Senior Loan Fund
InstitutionAdvisor OS, LLC
Latest Disclosed Ownership10,155 shares
Latest Disclosed Value $ 454,944
Advisor OS, LLC reports 18.01% increase in ownership of FTSL / First Trust Exchange-Traded Fund IV - First Trust Senior Loan Fund

On May 7, 2026 - Advisor OS, LLC filed a 13F-HR form disclosing ownership of 10,155 shares of First Trust Exchange-Traded Fund IV - First Trust Senior Loan Fund (US:FTSL) valued at $454,944 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 8,605 shares of First Trust Exchange-Traded Fund IV - First Trust Senior Loan Fund. This represents a change in shares of 18.01% during the quarter. The current value of the position is $456,670 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)
2026-05-07 2026-03-31 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 10,155 1,550 18.01 455 15.23 0.0128
2026-02-04 2025-12-31 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 8,605 2,907 51.02 395 50.96 0.0117
2025-11-12 2025-09-30 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 5,698 86 1.53 261 1.56 0.0225
2025-08-14 2025-06-30 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 5,612 297 5.59 258 6.20 0.0253
2025-05-06 2025-03-31 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 5,315 -835 -13.58 243 -14.79 0.0276
2025-02-05 2024-12-31 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 6,150 -317 -4.90 284 -4.05 0.0329
2024-11-04 2024-09-30 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 6,467 -6 -0.09 297 0.34 0.0295
2024-08-05 2024-06-30 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 6,473 1,087 20.18 296 18.95 0.0324
2024-05-09 2024-03-31 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 5,386 -158 -2.85 249 -2.75 0.0286
2024-02-08 2023-12-31 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 5,544 -4,949 -47.16 255 -46.76 0.0332
2023-11-03 2023-09-30 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 10,493 -458 -4.18 480 -3.43 0.0719
2023-08-08 2023-06-30 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 10,951 -22,302 -67.07 496 -67.02 0.0812
2023-04-25 2023-03-31 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 33,253 -246,961 -88.13 1,504 -87.96 0.3611
2023-02-01 2022-12-31 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 280,214 -48,233 -14.69 12,495 -13.68 3.3181
2022-11-04 2022-09-30 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 328,447 39,089 13.51 14,474 13.42 4.3634
2022-08-02 2022-06-30 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 289,358 26,027 9.88 12,761 2.99 3.7229
2022-05-11 2022-03-31 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 263,331 195,362 287.43 12,391 280.56 3.5880
2022-02-04 2021-12-31 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 67,969 11,801 21.01 3,256 21.18 0.6643
2021-11-15 2021-09-30 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 56,168 3,917 7.50 2,687 7.09 0.5842
2021-08-10 2021-06-30 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 52,251 5,607 12.02 2,509 12.36 0.5207
2021-05-13 2021-03-31 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 46,644 -217,746 -82.36 2,233 -84.69 0.5062
2021-02-10 2020-12-31 13F FIRST TR EXCHANGE-TRADED FD SENIOR LN FD 33738D309 264,390 264,390 14,588 3.9149
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.