iShares US MBS Usd AccIMBXFETF
13F holders, Q1 2026 (March 31)1holders
0new positions
0sold out
$5.56avg. 13F price*
At the end of Q1 2026, 1 institutions reported holding iShares US MBS Usd Acc (IMBXF) in their 13F filings, unchanged from Q4 2025. 0 opened new positions and 0 sold out. The largest holder was Sierra Capital LLC ($20.7M).
- Company
- iShares US MBS Usd Acc
- CUSIP
- G4955M838
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 0 | $0 |
All 13F filers, Q4 2025 → Q1 2026: 28,893 shares bought, net +28,893 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 1 holders
| Sierra Capital LLC | 2.26% | Add +0.8% | 3,725,172 | $20.7M |
"% 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.