Brown Advisory’s iShares MBS ETF MBB Stock Holding History

Brown Advisory’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
2026 Q2	$1.26M	Buy	13,287 +1,266	+11%	+$120K	﹤0.01%	836
2026 Q1	$1.14M	Sell	12,021 -946	-7%	-$90.4K	﹤0.01%	806
2025 Q4	$1.23M	Buy	12,967 +133	+1%	+$12.7K	﹤0.01%	788
2025 Q3	$1.22M	Sell	12,834 -12,440	-49%	-$1.17M	﹤0.01%	773
2025 Q2	$2.37M	Buy	25,274 +174	+0.7%	+$16.1K	﹤0.01%	624
2025 Q1	$2.35M	Sell	25,100 -527	-2%	-$48.7K	﹤0.01%	612
2024 Q4	$2.35M	Sell	25,627 -9,207	-26%	-$857K	﹤0.01%	626
2024 Q3	$3.34M	Buy	34,834 +4,019	+13%	+$380K	﹤0.01%	567
2024 Q2	$2.83M	Buy	30,815 +35	+0.1%	+$3.19K	﹤0.01%	579
2024 Q1	$2.84M	Buy	30,780 +4,057	+15%	+$375K	﹤0.01%	574
2023 Q4	$2.51M	Sell	26,723 -3,955	-13%	-$355K	﹤0.01%	580
2023 Q3	$2.72M	Sell	30,678 -4,896	-14%	-$447K	﹤0.01%	556
2023 Q2	$3.32M	Buy	35,574 +3,241	+10%	+$305K	0.01%	531
2023 Q1	$3.06M	Buy	32,333 +28,210	+684%	+$2.66M	0.01%	539
2022 Q4	$382K	Buy	+4,123	New	+$380K	﹤0.01%	970

Other funds holding MBB

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Envestnet Asset Management Chicago, Illinois $424B AUM 22.96% 1-Year Est. Return

LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

TWIM

TIAA Wealth Investment Management New York $15B AUM

Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

TCIIS

TIAA-CREF Individual & Institutional Services New York $29.1B AUM

Truist Financial Charlotte, North Carolina $83.7B AUM 27.22% 1-Year Est. Return

Brown Advisory's MBB Position: Q2 2026 in Review

Brown Advisory increased its iShares MBS ETF (MBB) stake by 11% in Q2 2026, buying an estimated $120K and bringing the position to 13,287 shares worth $1.26M. The position accounts for ﹤0.01% of the portfolio, ranked #836.

Brown Advisory first reported a position in MBB in Q4 2022 and has held it in 15 quarters since. The position peaked at $3.34M in Q3 2024. 1,021 funds tracked by Wall St. Rank hold MBB as of Q2 2026.

Brown Advisory held 13,287 shares of iShares MBS ETF worth $1.26M as of Q2 2026.
Brown Advisory bought 1,266 iShares MBS ETF shares in Q2 2026, an estimated $120K.
iShares MBS ETF made up ﹤0.01% of Brown Advisory's portfolio in Q2 2026, its #836 holding.
Brown Advisory first reported a position in iShares MBS ETF in Q4 2022 and has held it in 15 quarters since.
Brown Advisory's iShares MBS ETF position peaked at $3.34M in Q3 2024.
1,021 funds tracked by Wall St. Rank held iShares MBS ETF as of Q2 2026.

Based on Brown Advisory's 13F filing for Q2 2026, filed 14 Aug 2026.