Canonical: https://ownershiptrace.com/13f/companies/7809

# Who owns iShares MBS ETF (MBB)? Elite investor 13F holders

4 tracked elite investors reported holding iShares MBS ETF as of 2026-06-30, including Bridgewater Associates, Ancora Advisors / Ancora Holdings, Renaissance Technologies LLC, Gotham Asset Management. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.

4 tracked investors currently reported holding · Latest report period: 2026-06-30

## Reported holders and securities, including exits (up to 20)

| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|  --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [Bridgewater Associates](https://ownershiptrace.com/13f/investors/8) | ISHARES TR | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 131080336.00 USD | 1386800.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1350694/0001350694-26-000003-index.html) |
| [Ancora Advisors / Ancora Holdings](https://ownershiptrace.com/13f/investors/101) | ISHARES TR | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 14017367.00 USD | 148301.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1446114/0001446114-26-000012-index.html) |
| [Renaissance Technologies LLC](https://ownershiptrace.com/13f/investors/63) | ISHARES TR | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 8883746.00 USD | 93988.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1037389/0001037389-26-000059-index.html) |
| [Gotham Asset Management](https://ownershiptrace.com/13f/investors/94672) | ISHARES TR | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 1344642.00 USD | 14226.000000 | Shares | hold | [Original filing](https://www.sec.gov/Archives/edgar/data/1510387/0001398344-26-014644-index.html) |
| [Oakmark Funds](https://ownershiptrace.com/13f/investors/11) | ISHARES TR | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 0.00 USD | 0.000000 | Shares | exited | [Original filing](https://www.sec.gov/Archives/edgar/data/813917/0000813917-26-000042-index.html) |

Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.

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