Fidelity Merrimack Street Trust - Fidelity Tactical Bond ETF
US ˙ ARCA

SecurityFTBD / Fidelity Merrimack Street Trust - Fidelity Tactical Bond ETF
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership21,532 shares
Latest Disclosed Value $ 1,058,367
Citadel Advisors Llc ownership in FTBD / Fidelity Merrimack Street Trust - Fidelity Tactical Bond ETF

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 21,532 shares of Fidelity Merrimack Street Trust - Fidelity Tactical Bond ETF (US:FTBD) valued at $1,058,367 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 0 shares of Fidelity Merrimack Street Trust - Fidelity Tactical Bond ETF. The current value of the position is $1,057,206 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 FIDELITY MERRIMACK STR TR TACTICAL BOND 316188879 21,532 21,532 1,058 0.0002
2026-02-17 2025-12-31 13F FIDELITY MERRIMACK STR TR TACTICAL BOND 316188879 0 -100.00 0
2025-11-14 2025-09-30 13F FIDELITY MERRIMACK STR TR TACTICAL BOND 316188879 30,537 8,648 39.51 1,527 41.65 0.0002
2025-08-14 2025-06-30 13F FIDELITY MERRIMACK STR TR TACTICAL BOND 316188879 21,889 -4,681 -17.62 1,078 -17.01 0.0002
2025-05-15 2025-03-31 13F FIDELITY MERRIMACK STR TR TACTICAL BOND 316188879 26,570 2,168 8.88 1,299 10.74 0.0002
2025-02-14 2024-12-31 13F FIDELITY MERRIMACK STR TR TACTICAL BOND 316188879 24,402 16,155 195.89 1,173 182.65 0.0002
2024-11-14 2024-09-30 13F FIDELITY MERRIMACK STR TR TACTICAL BOND 316188879 8,247 8,247 416 0.0001
2024-08-14 2024-06-30 13F FIDELITY MERRIMACK STR TR TACTICAL BOND 316188879 0 -31,200 -100.00 0 -100.00
2024-05-15 2024-03-31 13F FIDELITY MERRIMACK STR TR TACTICAL BOND 316188879 31,200 19,142 158.75 1,529 156.54 0.0003
2024-02-14 2023-12-31 13F FIDELITY MERRIMACK STR TR TACTICAL BOND 316188879 12,058 -35,812 -74.81 597 -73.39 0.0001
2023-11-14 2023-09-30 13F FIDELITY MERRIMACK STR TR TACTICAL BOND 316188879 47,870 39,363 462.71 2,240 438.46 0.0005
2023-08-14 2023-06-30 13F FIDELITY MERRIMACK STR TR TACTICAL BOND 316188879 8,507 117 1.39 417 -0.24 0.0001
2023-05-15 2023-03-31 13F FIDELITY MERRIMACK STR TR TACTICAL BOND 316188879 8,390 8,390 417 0.0001
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.