Roundhill Weekly T-Bill ETFWEEKETF
13F holders, Q3 2025 (September 30)7holders +3
4new positions
1sold out
1famous investor
$100.02avg. 13F price*
At the end of Q3 2025, 7 institutions reported holding Roundhill Weekly T-Bill ETF (WEEK) in their 13F filings, up 3 from Q2 2025. 4 opened new positions and 1 sold out. The largest holders were Exchange Traded Concepts, LLC ($86.3M), Jane Street Group, LLC ($3.2M) and One Capital Management, LLC ($947K). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Roundhill Weekly T-Bill ETF
- CUSIP
- 77926X676
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $1.7M |
| Exits | 1 | $244K |
All 13F filers, Q2 2025 → Q3 2025: 45,651 shares bought and 9,026 shares sold, net +36,625 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 7 holders
| Exchange Traded Concepts, LLC | 0.82% | No change | 862,813 | $86.3M |
| Jane Street Group, LLC | 0.00% | Add +848.4% | 32,416 | $3.2M |
| One Capital Management, LLC | 0.03% | New | 9,472 | $947K |
| Old Mission Capital LLC | 0.01% | New | 2,706 | $271K |
| GTS Securities LLC | 0.01% | Reduce -72.0% | 2,565 | $257K |
| Citadel Advisors | 0.00% | New | 2,319 | $232K |
| Prosperity Wealth Management, Inc. | 0.07% | New | 2,156 | $216K |
"% of holder's portfolio" is WEEK's weight in each manager's 13F, not the share of Roundhill Weekly T-Bill ETF the manager owns.