Bank of America
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Bank of America’s iShares MBS ETF MBB Stock Holding History

Bank of America’s Portfolio MBB Stock Details MBB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q3 		– Sell
-13,000
Closed -$1.19M – 8315
2024
Q2 		$1.19M Sell
13,000
-237,000
-95% -$21.6M ﹤0.01% 4792
2024
Q1 		$23.1M Buy
+250,000
New +$23.1M ﹤0.01% 2137
2023
Q4 		– Sell
-20,000
Closed -$1.78M – 8133
2023
Q3 		$1.78M Buy
+20,000
New +$1.83M ﹤0.01% 4368
2022
Q4 		– Sell
-1,000,000
Closed -$91.6M – 8343
2022
Q3 		$91.6M Buy
1,000,000
+16,600
+2% +$1.61M 0.01% 898
2022
Q2 		$95.9M Buy
+983,400
New +$96.4M 0.01% 904

Other funds holding MBB

JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Envestnet Asset Management
Envestnet Asset Management Chicago, Illinois $424B AUM 22.96% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
TWIM
TIAA Wealth Investment Management New York $15B AUM
Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
TCIIS
TIAA-CREF Individual & Institutional Services New York $29.1B AUM
Truist Financial
Truist Financial Charlotte, North Carolina $83.7B AUM 27.22% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return

Bank of America's MBB Position: Q1 2026 in Review

Bank of America reduced its iShares MBS ETF (MBB) stake by 6.8% in Q1 2026, selling an estimated $463M and leaving 66,207,297 shares worth $6.29B. The position accounts for 0.46% of the portfolio, ranked #38.

Bank of America first reported a position in MBB in Q2 2013 and has held it in 52 quarters since. The position peaked at $8.34B in Q4 2021. 1,024 funds tracked by Wall St. Rank hold MBB as of Q1 2026.

  • Bank of America held 66,207,297 shares of iShares MBS ETF worth $6.29B as of Q1 2026.
  • Bank of America sold 4,842,763 iShares MBS ETF shares in Q1 2026, an estimated $463M.
  • iShares MBS ETF made up 0.46% of Bank of America's portfolio in Q1 2026, its #38 holding.
  • Bank of America first reported a position in iShares MBS ETF in Q2 2013 and has held it in 52 quarters since.
  • Bank of America's iShares MBS ETF position peaked at $8.34B in Q4 2021.
  • 1,024 funds tracked by Wall St. Rank held iShares MBS ETF as of Q1 2026.

Based on Bank of America's 13F filing for Q1 2026, filed 18 May 2026.