MBB
ISHARES MBS ETFData as of 2026 Q2 (06-30) · 13F snapshot
Summary
ISHARES MBS ETF (MBB) is held as common stock by 3 tracked hedge-fund managers, with a combined reported value of ~$141.31M; the largest are Ray Dalio, Renaissance Technologies, Joel Greenblatt. 1 tracked manager also disclosed PUT or CALL positions, reported separately below. This quarter: 2 added, 1 closed. 10 public STOCK Act / OGE trade disclosures are on record. Data as of 2026 Q2, from public SEC 13F filings, delayed up to ~45 days.
Attention · LowThis quarter · Quiet
Common-stock holders31 also report options
Congress trades10
Price$89.66vs quarter-end-5.14%
Sectors0
This quarter's moves
Top holderNew0
Added2
Trimmed / sold1
Ray DalioCommon-stock positions
PUT and CALL disclosures are excluded from these holder counts and values.
Joel GreenblattHold
Value $1.34M0.0% of portfolio14,2262026 Q2
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Joel Greenblatt | $1.34M | 0.0% | Hold |
PUT / CALL disclosures
Reported separately: 13F option values are not common-stock ownership and do not reveal the full strategy or economic exposure.
Value $349.7K— of portfolio3,7002026 Q2
Value $264.7K— of portfolio2,8002026 Q2
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Ken GriffinCALL | $349.7K | — | — |
| Ken GriffinPUT | $264.7K | — | — |
Public SEC 13F filings may appear up to 45 days after quarter-end; STOCK Act / OGE trade filings are generally due within 45 days but may be late. Partial data only — research, not investment advice.