Bondbloxx Ir+m Tax-Aware MasTAXMETF

13F holders, Q2 2025 (June 30)
3holders
1new positions
1sold out
1famous investor
$49.22avg. 13F price*

At the end of Q2 2025, 3 institutions reported holding Bondbloxx Ir+m Tax-Aware Mas (TAXM) in their 13F filings, unchanged from Q1 2025. 1 opened new positions and 1 sold out. The largest holders were Income Research & Management ($4.9M), Jane Street Group, LLC ($847K) and Citadel Advisors ($250K). 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

051015 Q1 2025: 3Q1 2025Q2 2025: 3Q2 2025Q3 2025: 3Q3 2025Q4 2025: 5Q4 2025Q1 2026: 7Q1 2026Q2 2026: 12Q2 2026

Total Exit/New Position Q1 2025 → Q2 2025

InstitutionsTotal Value
New Positions1$250K
Exits1$99

All 13F filers, Q1 2025 → Q2 2025: 5,088 shares bought and 3,138 shares sold, net +1,950 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 3 holders

Income Research & Management 1.32% No change 100,000 $4.9M
Jane Street Group, LLC 0.00% Reduce -15.4% 17,215 $847K
Citadel Advisors 0.00% New 5,088 $250K

"% 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.