富達 Merrimack Street Trust - 富達全債券 ETF
US ˙ ARCA ˙ US3161883091

SecurityFBND / Fidelity Merrimack Street Trust - Fidelity Total Bond ETF
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership229,100 shares
Latest Disclosed Value $ 10,451,542
Renaissance Technologies Llc reports 107.71% increase in ownership of FBND / Fidelity Merrimack Street Trust - Fidelity Total Bond ETF

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 229,100 shares of Fidelity Merrimack Street Trust - Fidelity Total Bond ETF (US:FBND) valued at $10,451,542 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 110,300 shares of Fidelity Merrimack Street Trust - Fidelity Total Bond ETF. This represents a change in shares of 107.71% during the quarter. The current value of the position is $10,421,759 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 229,100 118,800 107.71 10,452 105.81 0.0163
2026-02-12 2025-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 110,300 -170,400 -60.71 5,078 -60.88 0.0079
2025-11-13 2025-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 280,700 24,300 9.48 12,980 10.65 0.0171
2025-08-13 2025-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 256,400 249,000 3,364.86 11,730 3,380.71 0.0156
2025-05-14 2025-03-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 7,400 7,400 338 0.0005
2025-02-13 2024-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 0 -47,832 -100.00 0 -100.00
2024-11-13 2024-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 47,832 -11,965 -20.01 2,236 -16.79 0.0034
2024-08-09 2024-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 59,797 59,797 2,687 0.0046
2024-05-13 2024-03-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 0 -5,100 -100.00 0 0.0000
2024-02-13 2023-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 5,100 5,100 0 0.0004
2023-11-14 2023-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 0 -8,697 -100.00 0 0.0000
2023-08-11 2023-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 8,697 -3,637 -29.49 0 0.0006
2023-05-12 2023-03-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 12,334 -11,476 -48.20 1 -100.00 0.0008
2023-02-13 2022-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 23,810 23,810 1 0.0015
2022-11-14 2022-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 0 -5,390 -100.00 0 -100.00
2022-08-12 2022-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 5,390 -3,010 -35.83 251 -39.95 0.0003
2022-05-13 2022-03-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 8,400 8,400 418 0.0005
2022-02-11 2021-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 0 -8,700 -100.00 0 -100.00
2021-11-12 2021-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 8,700 8,700 462 0.0006
2021-08-13 2021-06-30 13F FIDELITY COVINGTON TRUST TOTAL BD ETF 316188309 0 -21,700 -100.00 0 -100.00
2021-05-13 2021-03-31 13F FIDELITY COVINGTON TRUST TOTAL BD ETF 316188309 21,700 -58,504 -72.94 1,137 -73.87 0.0014
2021-02-10 2020-12-31 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 80,204 49,304 159.56 4,351 157.61 0.0047
2020-11-13 2020-09-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 30,900 -23,400 -43.09 1,689 -42.32 0.0017
2020-08-13 2020-06-30 13F FIDELITY MERRIMACK STR TR TOTAL BD ETF 316188309 54,300 54,300 2,928 0.0025
2020-05-14 2020-03-31 13F FIDELITY TOTAL BD ETF 316188309 0 -22,100 -100.00 0 -100.00
2020-02-13 2019-12-31 13F FIDELITY TOTAL BD ETF 316188309 22,100 22,100 1,143 0.0009
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.