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

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$265M Sell
2,803,720
-621,843
-18% -$58.8M 0.09% 180
2026
Q1
$325M Buy
3,425,563
+542,039
+19% +$51.8M 0.12% 147
2025
Q4
$275M Buy
2,883,524
+1,460,545
+103% +$139M 0.1% 171
2025
Q3
$135M Buy
1,422,979
+162,150
+13% +$15.2M 0.05% 258
2025
Q2
$118M Buy
1,260,829
+84,824
+7% +$7.86M 0.06% 240
2025
Q1
$110M Buy
1,176,005
+54,646
+5% +$5.05M 0.05% 250
2024
Q4
$103M Buy
1,121,359
+79,395
+8% +$7.39M 0.05% 283
2024
Q3
$100M Buy
1,041,964
+29,745
+3% +$2.81M 0.04% 300
2024
Q2
$93.7M Sell
1,012,219
-1,481,900
-59% -$135M 0.03% 300
2024
Q1
$231M Buy
2,494,119
+1,526,826
+158% +$141M 0.07% 160
2023
Q4
$102M Buy
967,293
+1,983
+0.2% +$178K 0.03% 294
2023
Q3
$102M Sell
965,310
-1,758
-0.2% -$161K 0.04% 263
2023
Q2
$102M Buy
967,068
+203,961
+27% +$19.2M 0.04% 249
2023
Q1
$80.8M Buy
763,107
+626,876
+460% +$59.2M 0.03% 278
2022
Q4
$14.4M Buy
136,231
+13,192
+11% +$1.22M 0.01% 823
2022
Q3
$13K Sell
123,039
-4,521
-4% -$438K 0.01% 863
2022
Q2
$13.5K Sell
127,560
-13,908
-10% -$1.36M 0.01% 924
2022
Q1
$15M Sell
141,468
-9,539
-6% -$996K 0.01% 966
2021
Q4
$16.2M Buy
151,007
+4,406
+3% +$474K 0.01% 806
2021
Q3
$15.9M Buy
146,601
+15,279
+12% +$1.66M 0.01% 1051
2021
Q2
$14.2M Buy
131,322
+30,183
+30% +$3.27M 0.01% 1093
2021
Q1
$11M Sell
101,139
-91,175
-47% -$9.99M 0.01% 962
2020
Q4
$21.2M Buy
192,314
+168,182
+697% +$18.5M 0.01% 680
2020
Q3
$2.66M Buy
24,132
+22,818
+1,737% +$2.52M ﹤0.01% 1551
2020
Q2
$146K Sell
1,314
-63,713
-98% -$7.05M ﹤0.01% 2891
2020
Q1
$7.16M Sell
65,027
-49,091
-43% -$5.34M 0.01% 836
2019
Q4
$12.3M Buy
114,118
+41,319
+57% +$4.46M 0.01% 879
2019
Q3
$7.88M Buy
72,799
+40,591
+126% +$4.38M 0.01% 977
2019
Q2
$3.47M Buy
32,208
+29,878
+1,282% +$3.18M ﹤0.01% 1388
2019
Q1
$248K Buy
2,330
+85
+4% +$8.94K ﹤0.01% 2629
2018
Q4
$235K Buy
2,245
+287
+15% +$29.5K ﹤0.01% 2496
2018
Q3
$203K Sell
1,958
-78,180
-98% -$8.11M ﹤0.01% 2734
2018
Q2
$8.35M Buy
80,138
+76,268
+1,971% +$7.92M 0.01% 965
2018
Q1
$404K Buy
3,870
+631
+19% +$66.2K ﹤0.01% 2311
2017
Q4
$346K Buy
3,239
+292
+10% +$31.2K ﹤0.01% 2447
2017
Q3
$316K Buy
2,947
+1,928
+189% +$207K ﹤0.01% 2473
2017
Q2
$109K Sell
1,019
-58
-5% -$6.21K ﹤0.01% 2954
2017
Q1
$115K Sell
1,077
-589
-35% -$62.6K ﹤0.01% 2752
2016
Q4
$179K Sell
1,666
-18,682
-92% -$2.02M ﹤0.01% 2549
2016
Q3
$2.24M Sell
20,348
-13,735
-40% -$1.51M ﹤0.01% 1441
2016
Q2
$3.75M Sell
34,083
-1,582
-4% -$173K ﹤0.01% 1212
2016
Q1
$3.9M Buy
35,665
+19,325
+118% +$2.11M ﹤0.01% 1130
2015
Q4
$1.76M Sell
16,340
-787
-5% -$85.6K ﹤0.01% 1462
2015
Q3
$1.88M Buy
17,127
+1,437
+9% +$157K ﹤0.01% 1324
2015
Q2
$1.7M Buy
15,690
+975
+7% +$107K ﹤0.01% 1448
2015
Q1
$1.62M Buy
14,715
+4,385
+42% +$482K ﹤0.01% 1440
2014
Q4
$1.13M Buy
10,330
+380
+4% +$41.5K ﹤0.01% 1653
2014
Q3
$1.08M Sell
9,950
-730
-7% -$78.8K ﹤0.01% 1738
2014
Q2
$1.16M Buy
10,680
+1,800
+20% +$193K ﹤0.01% 1683
2014
Q1
$942K Buy
8,880
+1,330
+18% +$141K ﹤0.01% 1695
2013
Q4
$789K Buy
7,550
+370
+5% +$39.1K ﹤0.01% 1582
2013
Q3
$760K Sell
7,180
-810
-10% -$84.7K ﹤0.01% 1589
2013
Q2
$841K Buy
+7,990
New +$855K ﹤0.01% 1469

Other funds holding MBB

Bank of Montreal's MBB Position: Q2 2026 in Review

Bank of Montreal reduced its iShares MBS ETF (MBB) stake by 18% in Q2 2026, selling an estimated $58.8M and leaving 2,803,720 shares worth $265M. The position accounts for 0.09% of the portfolio, ranked #180.

Bank of Montreal first reported a position in MBB in Q2 2013 and has held it in 53 quarters since. The position peaked at $325M in Q1 2026. 890 funds tracked by Wall St. Rank hold MBB as of Q2 2026.

  • Bank of Montreal held 2,803,720 shares of iShares MBS ETF worth $265M as of Q2 2026.
  • Bank of Montreal sold 621,843 iShares MBS ETF shares in Q2 2026, an estimated $58.8M.
  • iShares MBS ETF made up 0.09% of Bank of Montreal's portfolio in Q2 2026, its #180 holding.
  • Bank of Montreal first reported a position in iShares MBS ETF in Q2 2013 and has held it in 53 quarters since.
  • Bank of Montreal's iShares MBS ETF position peaked at $325M in Q1 2026.
  • 890 funds tracked by Wall St. Rank held iShares MBS ETF as of Q2 2026.

Based on Bank of Montreal's 13F filing for Q2 2026, filed 12 Aug 2026.