Fidelity Merrimack Street Trust - Fidelity Total Bond ETF
US ˙ ARCA ˙ US3161883091

SecurityFBND / Fidelity Merrimack Street Trust - Fidelity Total Bond ETF
InstitutionUBS Group AG
Latest Disclosed Ownership6,229,749 shares
Latest Disclosed Value $ 284,201,150
UBS Group AG reports 6.16% increase in ownership of FBND / Fidelity Merrimack Street Trust - Fidelity Total Bond ETF

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 6,229,749 shares of Fidelity Merrimack Street Trust - Fidelity Total Bond ETF (US:FBND) valued at $284,201,149 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 5,868,478 shares of Fidelity Merrimack Street Trust - Fidelity Total Bond ETF. This represents a change in shares of 6.16% during the quarter. The current value of the position is $283,391,282 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)
2026-05-05 2026-03-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 6,229,749 361,271 6.16 284,201 5.19 0.0080
2026-01-29 2025-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 5,868,478 214,859 3.80 270,185 3.35 0.0079
2025-11-13 2025-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 5,653,619 410,781 7.84 261,423 8.99 0.0410
2025-08-14 2025-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 5,242,838 99,820 1.94 239,860 2.16 0.0415
2025-05-13 2025-03-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 5,143,018 92,842 1.84 234,779 3.61 0.0432
2025-02-14 2024-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 5,050,176 269,476 5.64 226,601 1.41 0.0419
2024-11-14 2024-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 4,780,700 279,621 6.21 223,450 10.49 0.0487
2024-08-14 2024-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 4,501,079 1,395,117 44.92 202,233 43.70 0.0500
2024-05-13 2024-03-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 3,105,962 665,538 27.27 140,731 25.25 0.0350
2024-02-09 2023-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 2,440,424 18,964 0.78 112,357 6.52 0.0336
2023-11-09 2023-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 2,421,460 216,582 9.82 105,479 5.33 0.0364
2023-08-11 2023-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 2,204,878 639,229 40.83 100,146 39.05 0.0338
2023-05-12 2023-03-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 1,565,649 415,435 36.12 72,020 39.08 0.0263
2023-02-08 2022-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 1,150,214 326,318 39.61 51,783 41.46 0.0193
2022-11-10 2022-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 823,896 -4,957 -0.60 36,606 -5.08 0.0160
2022-08-10 2022-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 828,853 -130,229 -13.58 38,567 -19.20 0.0158
2022-05-16 2022-03-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 959,082 61,092 6.80 47,734 0.26 0.0159
2022-02-14 2021-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 897,990 21,370 2.44 47,611 2.22 0.0136
2021-11-15 2021-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 876,620 140,915 19.15 46,575 18.71 0.0147
2021-08-13 2021-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 735,705 218,460 42.24 39,235 44.73 0.0126
2021-05-12 2021-03-31 13F FIDELITY COVINGTON TRUST TOTAL BD ETF 316188309 517,245 221,771 75.06 27,109 69.11 0.0090
2021-02-11 2020-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 295,474 46,008 18.44 16,030 17.58 0.0054
2020-11-12 2020-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 249,466 9,539 3.98 13,633 5.36 0.0051
2020-07-31 2020-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 239,927 -1,890 -0.78 12,939 3.40 0.0055
2020-05-01 2020-03-31 13F FIDELITY TOTAL BD ETF 316188309 241,817 -69,885 -22.42 12,514 -22.40 0.0059
2020-02-14 2019-12-31 13F FIDELITY TOTAL BD ETF 316188309 311,702 19,499 6.67 16,127 6.75 0.0056
2019-11-14 2019-09-30 13F FIDELITY TOTAL BD ETF 316188309 292,203 2,630 0.91 15,107 2.19 0.0058
2019-08-14 2019-06-30 13F FIDELITY TOTAL BD ETF 316188309 289,573 -3,841 -1.31 14,783 0.85 0.0057
2019-05-14 2019-03-31 13F FIDELITY TOTAL BD ETF 316188309 293,414 39,357 15.49 14,659 18.90 0.0061
2019-02-14 2018-12-31 13F FIDELITY TOTAL BD ETF 316188309 254,057 3,882 1.55 12,329 1.38 0.0056
2018-11-14 2018-09-30 13F FIDELITY TOTAL BD ETF 316188309 250,175 201,600 415.03 12,161 412.26 0.0048
2018-08-14 2018-06-30 13F FIDELITY TOTAL BD ETF 316188309 48,575 15,192 45.51 2,374 44.76 0.0010
2018-05-15 2018-03-31 13F FIDELITY TOTAL BD ETF 316188309 33,383 10,466 45.67 1,640 42.36 0.0007
2018-02-14 2017-12-31 13F FIDELITY TOTAL BD ETF 316188309 22,917 2,219 10.72 1,152 10.66 0.0005
2017-11-14 2017-09-30 13F FIDELITY TOTAL BD ETF 316188309 20,698 17,841 624.47 1,041 627.97 0.0005
2017-11-14 2017-06-30 13F/A-1 FIDELITY TOTAL BD ETF 316188309 2,857 -1,342 -31.96 143 -31.58 0.0001
2017-08-14 2017-06-30 13F FIDELITY TOTAL BD ETF 316188309 2,857 159 143
2017-11-14 2017-03-31 13F/A-1 FIDELITY TOTAL BD ETF 316188309 4,199 1,260 42.87 209 42.18 0.0001
2017-05-12 2017-03-31 13F FIDELITY TOTAL BD ETF 316188309 4,199 -6,752 209
2017-02-14 2016-12-31 13F FIDELITY TOTAL BD ETF 316188309 2,939 -73,975 -96.18 147 -96.26 0.0001
2016-11-14 2016-09-30 13F FIDELITY TOTAL BD ETF 316188309 76,914 76,390 14,578.24 3,928 14,448.15 0.0023
2016-08-12 2016-06-30 13F FIDELITY TOTAL BD ETF 316188309 524 -2,121 -80.19 27 -79.07 0.0000
2016-05-12 2016-03-31 13F FIDELITY TOTAL BD ETF 316188309 2,645 1,501 131.21 129 126.32 0.0001
2015-08-14 2015-06-30 13F FIDELITY TOTAL BD ETF 316188309 1,144 -153,651 -99.26 57 -99.27 0.0000
2015-05-14 2015-03-31 13F FIDELITY TOTAL BD ETF 316188309 154,795 -45,205 -22.60 7,853 -21.52 0.0054
2015-02-17 2014-12-31 13F FIDELITY TOTAL BD ETF 316188309 200,000 200,000 10,006 0.0070
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.