As of 30 Sep 2025, 921 institutional investors reported holding 382,533,728 shares of ISHARES TR - MBS ETF (MBB).
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 16,743,145 | $1,593,951,105 | +$46,301,638 | $95.22 | 214 |
| 2025 Q3 | 382,533,728 | $36,393,161,268 | +$1,805,668,302 | $95.15 | 921 |
| 2025 Q2 | 366,181,911 | $34,368,798,470 | +$2,370,976,359 | $93.89 | 930 |
| 2025 Q1 | 340,273,692 | $31,904,410,060 | -$1,314,103,353 | $93.78 | 923 |
| 2024 Q4 | 356,418,139 | $32,683,096,138 | +$2,889,674,904 | $91.68 | 920 |
| 2024 Q3 | 323,523,942 | $30,944,032,397 | +$1,544,814,635 | $95.81 | 870 |
| 2024 Q2 | 306,523,407 | $28,146,559,694 | +$1,658,767,399 | $91.81 | 830 |
| 2024 Q1 | 287,825,907 | $26,598,237,369 | +$291,025,795 | $92.42 | 834 |
| 2023 Q4 | 283,213,749 | $26,646,271,004 | +$666,283,476 | $94.08 | 858 |
| 2023 Q3 | 272,186,626 | $24,204,404,688 | -$17,334,997 | $88.80 | 762 |
| 2023 Q2 | 271,829,929 | $25,363,879,748 | +$1,838,376,245 | $93.26 | 778 |
| 2023 Q1 | 252,223,151 | $23,899,937,527 | +$1,880,103,990 | $94.73 | 741 |
| 2022 Q4 | 231,979,759 | $21,521,968,234 | +$3,293,655,713 | $92.75 | 750 |
| 2022 Q3 | 196,626,646 | $18,021,256,920 | -$451,792,557 | $91.58 | 675 |
| 2022 Q2 | 201,823,103 | $19,689,866,084 | -$181,617,198 | $97.49 | 692 |
| 2022 Q1 | 202,161,676 | $20,604,621,834 | -$1,185,663,224 | $101.87 | 708 |
| 2021 Q4 | 214,544,937 | $23,045,960,642 | +$736,874,724 | $107.43 | 715 |
| 2021 Q3 | 206,410,181 | $22,321,261,297 | -$679,995,315 | $108.14 | 680 |
| 2021 Q2 | 213,734,638 | $23,131,780,415 | +$67,359,130 | $108.23 | 669 |
| 2021 Q1 | 212,749,925 | $23,064,886,149 | +$1,008,056,124 | $108.42 | 692 |
| 2020 Q4 | 203,409,883 | $22,402,372,075 | +$3,113,850,030 | $110.13 | 685 |
| 2020 Q3 | 172,818,410 | $19,076,420,907 | +$1,229,861,900 | $110.40 | 567 |
| 2020 Q2 | 161,739,164 | $17,892,222,855 | -$686,222,750 | $110.70 | 538 |
| 2020 Q1 | 166,920,761 | $18,429,520,136 | -$982,682,940 | $110.44 | 537 |
| 2019 Q4 | 176,325,921 | $19,052,446,291 | +$2,347,863,883 | $108.06 | 501 |
| 2019 Q3 | 154,681,355 | $16,753,054,161 | +$1,310,803,471 | $108.30 | 428 |
| 2019 Q2 | 142,499,410 | $15,333,572,076 | +$892,054,695 | $107.60 | 405 |
| 2019 Q1 | 134,143,008 | $14,271,035,012 | +$3,091,738,764 | $106.36 | 385 |
| 2018 Q4 | 104,457,461 | $10,933,761,048 | -$16,159,305 | $104.65 | 350 |
| 2018 Q3 | 104,266,087 | $10,772,745,358 | +$227,134,989 | $103.33 | 315 |
| 2018 Q2 | 101,945,728 | $10,608,179,813 | +$205,567,644 | $104.18 | 314 |
| 2018 Q1 | 101,973,813 | $10,668,926,051 | +$581,630,960 | $104.64 | 321 |
| 2017 Q4 | 96,499,327 | $10,285,458,043 | +$515,729,230 | $106.59 | 331 |
| 2017 Q3 | 91,197,667 | $9,766,915,066 | +$3,297,928,507 | $107.10 | 290 |
| 2017 Q2 | 60,418,149 | $6,449,989,194 | -$813,536,989 | $106.76 | 288 |
| 2017 Q1 | 68,027,560 | $7,247,961,393 | +$478,165,742 | $106.55 | 282 |
| 2016 Q4 | 64,521,253 | $6,863,848,170 | -$555,159,317 | $106.34 | 294 |
| 2016 Q3 | 69,519,856 | $7,646,991,898 | +$745,304,898 | $110.09 | 278 |
| 2016 Q2 | 62,911,630 | $6,917,877,614 | +$131,221,969 | $109.97 | 269 |
| 2016 Q1 | 61,654,532 | $6,748,163,062 | +$46,694,080 | $109.48 | 271 |
| 2015 Q4 | 61,147,285 | $6,586,209,122 | +$191,780,896 | $107.70 | 260 |
| 2015 Q3 | 58,754,416 | $6,440,743,749 | +$1,846,477,134 | $109.62 | 243 |
| 2015 Q2 | 55,519,274 | $6,030,828,258 | +$51,781,888 | $108.62 | 239 |
| 2015 Q1 | 54,914,953 | $6,060,155,264 | +$576,138,504 | $110.34 | 224 |
| 2014 Q4 | 49,828,046 | $5,445,932,511 | +$101,776,414 | $109.32 | 220 |
| 2014 Q3 | 48,481,141 | $5,231,181,812 | +$384,488,534 | $108.11 | 204 |
| 2014 Q2 | 44,901,988 | $4,856,815,179 | +$631,325,828 | $108.22 | 194 |
| 2014 Q1 | 39,089,115 | $4,148,660,029 | +$8,950,334 | $106.13 | 197 |