Roundhill Weekly T-Bill ETFWEEKETF
13F holders, Q4 2025 (December 31)6holders −1
0new positions
1sold out
1famous investor
$100.07avg. 13F price*
At the end of Q4 2025, 6 institutions reported holding Roundhill Weekly T-Bill ETF (WEEK) in their 13F filings, down 1 from Q3 2025. 0 opened new positions and 1 sold out. The largest holders were Exchange Traded Concepts, LLC ($86.3M), One Capital Management, LLC ($1.1M) and Jane Street Group, LLC ($688K). 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 Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 1 | $216K |
All 13F filers, Q3 2025 → Q4 2025: 5,631 shares bought and 27,859 shares sold, net −22,228 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 6 holders
| Exchange Traded Concepts, LLC | 0.72% | No change | 862,813 | $86.3M |
| One Capital Management, LLC | 0.03% | Add +13.9% | 10,793 | $1.1M |
| Jane Street Group, LLC | 0.00% | Reduce -78.8% | 6,871 | $688K |
| GTS Securities LLC | 0.02% | Add +151.8% | 6,460 | $646K |
| Citadel Advisors | 0.00% | Add +17.9% | 2,734 | $274K |
| Old Mission Capital LLC | 0.01% | Reduce -5.8% | 2,548 | $255K |
"% 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.