Who owns Roundhill Investments - Weekly T-Bill ETF?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of WEEK from SEC Form 13F filings across 5 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 5 institutions disclosed 845,131 shares of Roundhill Investments - Weekly T-Bill ETF worth $84.5M — about 49.1% of shares outstanding; the largest disclosed holder is EXCHANGE TRADED CONCEPTS, LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
5
13F holders
$84.5M
value, 2026 filers
49.1%
of shares outstanding (845,131 sh)
3
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of WEEK's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | EXCHANGE TRADED CONCEPTS, LLC | 826,813 | $82.7M | 0.4% | 48.1% | -4.2% |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLPNEW | 11,720 | $1.2M | 0.0% | 0.7% | new |
| 3 | Tower Research Capital LLC (TRC)NEW | 3,424 | $342,468 | 0.0% | 0.2% | new |
| 4 | JANE STREET GROUP, LLC | 3,164 | $316,463 | 0.0% | 0.2% | -64.2% |
| 5 | ROYAL BANK OF CANADANEW | 10 | $1,000 | 0.0% | 0% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.