Armour Residential REIT, Inc. (ARR) Institutional Ownership

Ownership Summary

Armour Residential REIT, Inc. (NYSE:ARR) currently has 208 active institutional owners and shareholders as of today (September 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

• The percentage of Armour Residential REIT owned by institutions changed from 40.0% in June 2025 to 61.5% in September 2025, marking a slight up trend.
• On a quarter-over-quarter basis, institutional holdings shifted by 53.22%, with a year-over-year an increase of 22.35% in the count of filers.
• Among the 208 institutional holders of Armour Residential REIT, 149 added to their stakes while 32 trimmed their positions and 27 held steady.
• This class of investors increased its holdings in Armour Residential REIT to 64.45Mn shares for the 13F-cycle ending September 2025, up by 22.39Mn shares quarter on quarter, and up 39.33Mn shares year over year.
• As of September 30, 2025, BlackRock, Inc. held Armour Residential REIT's largest shareholding position with over 17.42Mn shares, representing 16.62% of total outstanding shares.
• Among the most significant buyers of Armour Residential REIT during September 2025 were BlackRock, Inc. (4.44Mn), VANGUARD GROUP INC (3.15Mn), MARSHALL WACE, LLP (1.96Mn), D. E. Shaw & Co., Inc. (1.51Mn), EMG Holdings, L.P. (1.21Mn).
• Leading sellers of Armour Residential REIT stock in September 2025 included TWO SIGMA INVESTMENTS, LP (379.99K), GOLDMAN SACHS GROUP INC (280.80K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (159.19K), Nuveen, LLC (100.29K), Freestone Grove Partners LP (97.81K).
• The top 10 institutional holders of Armour Residential REIT for the quarter ending September 2025 included BlackRock, Inc. (17.42Mn), VANGUARD GROUP INC (12.00Mn), STATE STREET CORP (3.87Mn), GEODE CAPITAL MANAGEMENT, LLC (2.83Mn), MARSHALL WACE, LLP (2.50Mn), Invesco Ltd. (1.86Mn), D. E. Shaw & Co., Inc. (1.51Mn), EMG Holdings, L.P. (1.21Mn), AMERIPRISE FINANCIAL INC (1.15Mn), UBS Group AG (1.11Mn).