ARMOUR Residential REIT, Inc.
MX ˙ BMV ˙ US0423155078
SecurityMX:ARR / ARMOUR Residential REIT, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership330,797 shares
Latest Disclosed Value $ 5,517,676
Rhumbline Advisers reports 6.09% increase in ownership of ARR / ARMOUR Residential REIT, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 330,797 shares of ARMOUR Residential REIT, Inc. (MX:ARR) valued at $5,517,676 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 311,801 shares of ARMOUR Residential REIT, Inc.. This represents a change in shares of 6.09% during the quarter.

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)
2026-05-12 2026-03-31 13F ARMOUR RESIDENTIAL REIT INC COM COM 042315705 330,797 18,996 6.09 5,518 0.04 0.0047
2026-02-13 2025-12-31 13F ARMOUR RESIDENTIAL REIT INC COM COM 042315705 311,801 -28,779 -8.45 5,516 8.39 0.0045
2025-11-06 2025-09-30 13F ARMOUR RESIDENTIAL REIT INC COM COM 042315705 340,580 72,287 26.94 5,088 12.84 0.0041
2025-08-12 2025-06-30 13F ARMOUR RESIDENTIAL REIT INC COM COM 042315705 268,293 79,501 42.11 4,510 39.68 0.0039
2025-05-29 2025-03-31 13F/A-1 ARMOUR RESIDENTIAL REIT INC COM COM 042315705 188,792 31,133 19.75 3,228 8.58 0.0030
2025-04-08 2025-03-31 13F ARMOUR RESIDENTIAL REIT INC COM COM 042315705 188,792 31,133 3,228 0.0030
2025-05-29 2024-12-31 13F/A-1 ARMOUR RESIDENTIAL REIT INC COM COM 042315705 157,659 16,523 11.71 2,973 3.27 0.0027
2025-01-30 2024-12-31 13F ARMOUR RESIDENTIAL REIT INC COM COM 042315705 157,659 16,523 2,973 0.0027
2024-11-12 2024-09-30 13F ARMOUR RESIDENTIAL REIT INC COM COM 042315705 141,136 -8,698 -5.81 2,879 -0.83 0.0026
2024-08-01 2024-06-30 13F ARMOUR RESIDENTIAL REIT INC COM COM 042315705 149,834 6,088 4.24 2,904 2.18 0.0027
2024-05-09 2024-03-31 13F ARMOUR RESIDENTIAL REIT INC COM COM 042315705 143,746 1,503 1.06 2,842 3.38 0.0027
2024-02-08 2023-12-31 13F ARMOUR RESIDENTIAL REIT INC COM COM 042315705 142,243 -356,923 -71.50 2,748 73.70 0.0029
2015-05-12 2015-03-31 13F ARMOUR RESIDENTIAL REIT INC RE COM 042315101 499,166 26,800 5.67 1,582 -8.98 0.0046
2015-02-06 2014-12-31 13F ARMOUR RESIDENTIAL REIT INC RE COM 042315101 472,366 36,175 8.29 1,738 3.51 0.0050
2014-11-12 2014-09-30 13F ARMOUR RESIDENTIAL REIT INC RE COM 042315101 436,191 3,300 0.76 1,679 -10.41 0.0050
2014-08-06 2014-06-30 13F ARMOUR RESIDENTIAL REIT INC RE COM 042315101 432,891 -23,762 -5.20 1,874 -0.37 0.0055
2014-05-06 2014-03-31 13F ARMOUR RESIDENTIAL REIT INC RE COM 042315101 456,653 -20,540 -4.30 1,881 -1.72 0.0056
2014-02-03 2013-12-31 13F ARMOUR RESIDENTIAL REIT INC RE COM 042315101 477,193 -30,000 -5.91 1,914 -10.14 0.0056
2013-11-05 2013-09-30 13F ARMOUR RESIDENTIAL REIT INC RE COM 042315101 507,193 -6,923 -1.35 2,130 -12.02 0.0066
2013-08-07 2013-06-30 13F ARMOUR RESIDENTIAL REIT INC RE COM 042315101 514,116 514,116 2,421 0.0078
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.