Roundhill Weekly T-Bill ETFWEEKETF
13F holders, Q1 2026 (March 31)3holders −3
0new positions
3sold out
1famous investor
$100.03avg. 13F price*
At the end of Q1 2026, 3 institutions reported holding Roundhill Weekly T-Bill ETF (WEEK) in their 13F filings, down 3 from Q4 2025. 0 opened new positions and 3 sold out. The largest holders were Exchange Traded Concepts, LLC ($86.3M), Jane Street Group, LLC ($883K) and Citadel Advisors ($525K). 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 Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 3 | $2.0M |
All 13F filers, Q4 2025 → Q1 2026: 4,474 shares bought and 19,801 shares sold, net −15,327 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 3 holders
| Exchange Traded Concepts, LLC | 0.66% | No change | 862,813 | $86.3M |
| Jane Street Group, LLC | 0.00% | Add +28.5% | 8,827 | $883K |
| Citadel Advisors | 0.00% | Add +92.1% | 5,252 | $525K |
"% 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.