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MBBA

iShares Mortgage-Backed Securities Active ETF

31 hedge funds and large institutions have $36.1M invested in iShares Mortgage-Backed Securities Active ETF in 2026 Q1 according to their latest regulatory filings, with 31 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

28.76% more ownership

Funds ownership: 0%28.76% (+29%)

Holders
31
Holders Change
+31
Holders Change %
% of All Funds
0.38%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
31
Increased
Reduced
Closed
Calls
Puts
Net Calls
Net Calls Change

MBBA Hedge Fund Activity: Q1 2026 in Review

31 of the 8,152 institutional investors tracked by Wall St. Rank reported a position in iShares Mortgage-Backed Securities Active ETF (MBBA) for Q1 2026, worth a combined $36.1M.

Buyers outnumbered sellers: 31 funds opened new MBBA positions and 0 closed out — a net gain of 31 holders — while 0 added to existing stakes and 0 trimmed.

The largest buyer was Envestnet Asset Management, opening a new position worth an estimated $8.07M.

  • 31 institutional investors held iShares Mortgage-Backed Securities Active ETF (MBBA) as of Q1 2026, up from 0 in Q4 2025.
  • Funds reported $36.1M of iShares Mortgage-Backed Securities Active ETF stock for Q1 2026.
  • 31 funds opened new iShares Mortgage-Backed Securities Active ETF positions in Q1 2026 and 0 closed out, a net change of +31 holders.
  • The largest iShares Mortgage-Backed Securities Active ETF buyer in Q1 2026 was Envestnet Asset Management, an estimated $8.07M added.

Based on aggregated 13F filings for Q1 2026.