iShares US MBS Usd AccIMBXFETF
13F holders, Q4 2025 (December 31)1holders −1
0new positions
1sold out
$5.58avg. 13F price*
At the end of Q4 2025, 1 institutions reported holding iShares US MBS Usd Acc (IMBXF) in their 13F filings, down 1 from Q3 2025. 0 opened new positions and 1 sold out. The largest holder was Sierra Capital LLC ($20.6M).
- Company
- iShares US MBS Usd Acc
- CUSIP
- G4955M838
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 1 | $59.2M |
All 13F filers, Q3 2025 → Q4 2025: 11,490 shares bought and 10,788,157 shares sold, net −10,776,667 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 1 holders
| Sierra Capital LLC | 2.18% | Add +0.3% | 3,696,279 | $20.6M |
"% of holder's portfolio" is IMBXF's weight in each manager's 13F, not the share of iShares US MBS Usd Acc the manager owns.