Bondbloxx Ir+m Tax-Aware MasTAXMETF
13F holders, Q3 2025 (September 30)3holders
0new positions
0sold out
1famous investor
$50.16avg. 13F price*
At the end of Q3 2025, 3 institutions reported holding Bondbloxx Ir+m Tax-Aware Mas (TAXM) in their 13F filings, unchanged from Q2 2025. 0 opened new positions and 0 sold out. The largest holders were Income Research & Management ($5.0M), Jane Street Group, LLC ($521K) and Citadel Advisors ($477K). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Bondbloxx Ir+m Tax-Aware Mas
- CUSIP
- 09789C697
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 0 | $0 |
All 13F filers, Q2 2025 → Q3 2025: 4,415 shares bought and 6,827 shares sold, net −2,412 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 3 holders
| Income Research & Management | 2.46% | No change | 100,000 | $5.0M |
| Jane Street Group, LLC | 0.00% | Reduce -39.7% | 10,388 | $521K |
| Citadel Advisors | 0.00% | Add +86.8% | 9,503 | $477K |
"% of holder's portfolio" is TAXM's weight in each manager's 13F, not the share of Bondbloxx Ir+m Tax-Aware Mas the manager owns.