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

SecurityFBND / Fidelity Merrimack Street Trust - Fidelity Total Bond ETF
InstitutionCwm, Llc
Latest Disclosed Ownership3,864,523 shares
Latest Disclosed Value $ 176,301,268
Cwm, Llc reports 18.22% increase in ownership of FBND / Fidelity Merrimack Street Trust - Fidelity Total Bond ETF

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 3,864,523 shares of Fidelity Merrimack Street Trust - Fidelity Total Bond ETF (US:FBND) valued at $176,299,539 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 3,268,874 shares of Fidelity Merrimack Street Trust - Fidelity Total Bond ETF. This represents a change in shares of 18.22% during the quarter. The current value of the position is $175,603,925 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)
2026-05-14 2026-03-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 3,864,523 595,649 18.22 176,301 117,434.00 0.4584
2026-01-26 2025-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 3,268,874 651,819 24.91 150 23.97 0.4078
2025-10-15 2025-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 2,617,055 458,305 21.23 121 23.47 0.3639
2025-07-25 2025-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 2,158,750 681,527 46.14 99 46.27 0.3483
2025-05-01 2025-03-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 1,477,223 60,287 4.25 67 6.35 0.2689
2025-02-04 2024-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 1,416,936 143,288 11.25 64 6.78 0.2639
2024-10-08 2024-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 1,273,648 272,917 27.27 60 34.09 0.2560
2024-07-10 2024-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 1,000,731 75,244 8.13 45 7.32 0.2120
2024-04-05 2024-03-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 925,487 242,029 35.41 42 32.26 0.2039
2024-02-01 2023-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 683,458 76,251 12.56 31 19.23 0.1692
2023-10-11 2023-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 607,207 150,815 33.05 26 30.00 0.1621
2023-08-03 2023-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 456,392 25,477 5.91 21 5.26 0.1281
2023-05-01 2023-03-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 430,915 -20,487 -4.54 20 -5.00 0.1339
2023-02-01 2022-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 451,402 -23,116 -4.87 20 -99.91 0.1497
2022-10-27 2022-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 474,518 -34,236 -6.73 21,083 -10.94 0.1675
2022-07-28 2022-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 508,754 -50,469 -9.02 23,672 -14.95 0.1834
2022-04-21 2022-03-31 13F FIDELITY COVINGTON TRUST TOTAL BD ETF 316188309 559,223 -5,439 -0.96 27,833 -7.03 0.1974
2022-01-31 2021-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 564,662 564,597 868,610.77 29,938 997,833.33 0.2108
2021-09-15 2021-06-30 13F/A-1 FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 0 0.00 3 0.00 0.0000
2021-07-29 2021-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 0 3 0.0000
2021-09-15 2021-03-31 13F/A-1 FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 0 0.00 3 0.00 0.0000
2021-04-27 2021-03-31 13F FIDELITY COVINGTON TRUST TOTAL BD ETF 316188309 67 2 3 0.0000
2021-09-15 2020-12-31 13F/A-1 FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 0 0.00 3 0.00 0.0000
2021-01-27 2020-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 0 4 0.0000
2021-09-15 2020-09-30 13F/A-1 FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 0 0.00 3 0.00 0.0000
2020-10-19 2020-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 0 4 0.0000
2021-09-15 2020-06-30 13F/A-1 FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 0 0.00 3 0.00 0.0000
2020-07-22 2020-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 0 4 0.0000
2021-09-15 2020-03-31 13F/A-1 FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 0 0.00 3 0.00 0.0000
2020-04-28 2020-03-31 13F FIDELITY TOTAL BD ETF 316188309 408 343 21 0.0003
2021-09-14 2019-12-31 13F/A-1 FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 0 0.00 3 0.00 0.0000
2020-01-27 2019-12-31 13F FIDELITY TOTAL BD ETF 316188309 408 343 21 0.0003
2021-09-14 2019-09-30 13F/A-1 FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 0 0.00 3 0.00 0.0000
2019-10-22 2019-09-30 13F FIDELITY TOTAL BD ETF 316188309 408 343 21 0.0003
2021-09-14 2019-06-30 13F/A-1 FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 0 0.00 3 0.00 0.0000
2019-07-31 2019-06-30 13F FIDELITY TOTAL BD ETF 316188309 398 333 20 0.0003
2021-09-02 2019-03-31 13F/A-1 FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 65 -333 -83.67 3 -84.21 0.0000
2019-04-22 2019-03-31 13F FIDELITY TOTAL BD ETF 316188309 398 0 20 0.0004
2019-01-25 2018-12-31 13F FIDELITY TOTAL BD ETF 316188309 398 0 0.00 19 0.00 0.0005
2018-10-29 2018-09-30 13F FIDELITY TOTAL BD ETF 316188309 398 0 0.00 19 0.00 0.0005
2018-07-31 2018-06-30 13F FIDELITY TOTAL BD ETF 316188309 398 0 0.00 19 -5.00 0.0006
2018-04-26 2018-03-31 13F FIDELITY TOTAL BD ETF 316188309 398 398 20 0.0008
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.