UBS Group’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 | $1.75B | Sell |
18,496,926
-3,340,299
| -15% | -$316M | 0.22% | 83 |
|
|
2026
Q1 | $2.07B | Buy |
21,837,225
+19,902,058
| +1,028% | +$1.9B | 0.31% | 48 |
|
|
2025
Q4 | $184M | Buy |
1,935,167
+166,427
| +9% | +$15.9M | 0.03% | 617 |
|
|
2025
Q3 | $168M | Buy |
1,768,740
+52,554
| +3% | +$4.94M | 0.03% | 680 |
|
|
2025
Q2 | $161M | Sell |
1,716,186
-710,728
| -29% | -$65.9M | 0.03% | 650 |
|
|
2025
Q1 | $228M | Buy |
2,426,914
+667,571
| +38% | +$61.7M | 0.04% | 448 |
|
|
2024
Q4 | $161M | Buy |
1,759,343
+45,070
| +3% | +$4.2M | 0.03% | 623 |
|
|
2024
Q3 | $164M | Sell |
1,714,273
-204,847
| -11% | -$19.4M | 0.04% | 489 |
|
|
2024
Q2 | $176M | Buy |
1,919,120
+20,384
| +1% | +$1.86M | 0.04% | 393 |
|
|
2024
Q1 | $175M | Buy |
1,898,736
+153,665
| +9% | +$14.2M | 0.04% | 407 |
|
|
2023
Q4 | $164M | Buy |
1,745,071
+133,298
| +8% | +$12M | 0.05% | 377 |
|
|
2023
Q3 | $143M | Sell |
1,611,773
-282,002
| -15% | -$25.8M | 0.05% | 374 |
|
|
2023
Q2 | $177M | Buy |
1,893,775
+309,368
| +20% | +$29.1M | 0.06% | 312 |
|
|
2023
Q1 | $150M | Buy |
1,584,407
+37,630
| +2% | +$3.55M | 0.05% | 337 |
|
|
2022
Q4 | $143M | Buy |
1,546,777
+330,052
| +27% | +$30.4M | 0.05% | 357 |
|
|
2022
Q3 | $111M | Sell |
1,216,725
-57,062
| -4% | -$5.53M | 0.05% | 392 |
|
|
2022
Q2 | $124M | Sell |
1,273,787
-45,162
| -3% | -$4.43M | 0.05% | 379 |
|
|
2022
Q1 | $134M | Sell |
1,318,949
-43,770
| -3% | -$4.57M | 0.04% | 415 |
|
|
2021
Q4 | $146M | Sell |
1,362,719
-110,717
| -8% | -$11.9M | 0.04% | 437 |
|
|
2021
Q3 | $159M | Sell |
1,473,436
-157,258
| -10% | -$17.1M | 0.05% | 364 |
|
|
2021
Q2 | $176M | Buy |
1,630,694
+118,602
| +8% | +$12.9M | 0.06% | 332 |
|
|
2021
Q1 | $164M | Buy |
1,512,092
+92,438
| +7% | +$10.1M | 0.05% | 331 |
|
|
2020
Q4 | $156M | Buy |
1,419,654
+60,189
| +4% | +$6.63M | 0.05% | 339 |
|
|
2020
Q3 | $150M | Buy |
1,359,465
+213,675
| +19% | +$23.6M | 0.06% | 296 |
|
|
2020
Q2 | $127M | Buy |
1,145,790
+269,175
| +31% | +$29.8M | 0.05% | 319 |
|
|
2020
Q1 | $96.8M | Sell |
876,615
-101,963
| -10% | -$11.1M | 0.05% | 355 |
|
|
2019
Q4 | $106M | Buy |
978,578
+50,024
| +5% | +$5.4M | 0.04% | 435 |
|
|
2019
Q3 | $101M | Buy |
928,554
+174,382
| +23% | +$18.8M | 0.04% | 405 |
|
|
2019
Q2 | $81.1M | Buy |
754,172
+34,487
| +5% | +$3.67M | 0.03% | 470 |
|
|
2019
Q1 | $76.5M | Sell |
719,685
-11,087
| -2% | -$1.17M | 0.03% | 462 |
|
|
2018
Q4 | $76.5M | Sell |
730,772
-78,496
| -10% | -$8.07M | 0.03% | 446 |
|
|
2018
Q3 | $83.6M | Sell |
809,268
-47,822
| -6% | -$4.96M | 0.03% | 467 |
|
|
2018
Q2 | $89.3M | Sell |
857,090
-229,462
| -21% | -$23.8M | 0.04% | 430 |
|
|
2018
Q1 | $114M | Buy |
1,086,552
+58,678
| +6% | +$6.15M | 0.05% | 352 |
|
|
2017
Q4 | $110M | Buy |
1,027,874
+120,471
| +13% | +$12.9M | 0.05% | 390 |
|
|
2017
Q3 | $97.2M | Sell |
907,403
-372,285
| -29% | -$39.9M | 0.05% | 379 |
|
|
2017
Q2 | $137M | Sell |
1,279,688
-648,499
| -34% | -$69.4M | 0.07% | 288 |
|
|
2017
Q1 | $205M | Sell |
1,928,187
-829,793
| -30% | -$88.2M | 0.11% | 206 |
|
|
2016
Q4 | $293M | Sell |
2,757,980
-115,741
| -4% | -$12.5M | 0.16% | 146 |
|
|
2016
Q3 | $316M | Buy |
2,873,721
+215,873
| +8% | +$23.7M | 0.19% | 126 |
|
|
2016
Q2 | $292M | Buy |
2,657,848
+287,646
| +12% | +$31.5M | 0.18% | 127 |
|
|
2016
Q1 | $259M | Buy |
2,370,202
+1,454,581
| +159% | +$159M | 0.17% | 134 |
|
|
2015
Q4 | $98.6M | Sell |
915,621
-28,269
| -3% | -$3.08M | 0.06% | 307 |
|
|
2015
Q3 | $103M | Buy |
943,890
+184,636
| +24% | +$20.1M | 0.07% | 272 |
|
|
2015
Q2 | $82.5M | Buy |
759,254
+60,881
| +9% | +$6.67M | 0.05% | 358 |
|
|
2015
Q1 | $77.1M | Buy |
698,373
+10,237
| +1% | +$1.12M | 0.05% | 377 |
|
|
2014
Q4 | $75.2M | Buy |
+688,136
| New | +$75.1M | 0.05% | 374 |
|
Other funds holding MBB
TWIM
TCIIS
UBS Group's MBB Position: Q2 2026 in Review
UBS Group reduced its iShares MBS ETF (MBB) stake by 15% in Q2 2026, selling an estimated $316M and leaving 18,496,926 shares worth $1.75B. The position accounts for 0.22% of the portfolio, ranked #83.
UBS Group first reported a position in MBB in Q4 2014 and has held it in 47 quarters since. The position peaked at $2.07B in Q1 2026. 1,021 funds tracked by Wall St. Rank hold MBB as of Q2 2026.
- UBS Group held 18,496,926 shares of iShares MBS ETF worth $1.75B as of Q2 2026.
- UBS Group sold 3,340,299 iShares MBS ETF shares in Q2 2026, an estimated $316M.
- iShares MBS ETF made up 0.22% of UBS Group's portfolio in Q2 2026, its #83 holding.
- UBS Group first reported a position in iShares MBS ETF in Q4 2014 and has held it in 47 quarters since.
- UBS Group's iShares MBS ETF position peaked at $2.07B in Q1 2026.
- 1,021 funds tracked by Wall St. Rank held iShares MBS ETF as of Q2 2026.
Based on UBS Group's 13F filing for Q2 2026, filed 13 Aug 2026.