% of shares outstanding is not shown for GTOS: this is a fund line, and we hold no cover-page share count for it at any quarter — a fund's shares outstanding move with creations and redemptions rather than with issuance and buybacks, and it is not the SEC cover-page count this percentage is defined against. The figure is withheld rather than computed against a count that does not exist. Holder share counts are shown as filed.
Crowding percentile withheld — no market cap for GTOS in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | Invesco Ltd. | 4,242,7004.2M | $106M | — | ADD 6% |
| 2 | CITADEL ADVISORS LLC | 91,45791,457 | $2M | — | — |
| 3 | Mowery & Schoenfeld Wealth Management, LLC | 47,91347,913 | $1M | — | NEW |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 16,78316,783 | $418,682 | — | NEW |
| 5 | JANE STREET GROUP, LLC | 16,36016,360 | $408,130 | — | NEW |
| 6 | Phillip James Consulting Co. | 14,54014,540 | $296,000 | — | NEW |
| 7 | Claro Advisors Inc. | 9,1719,171 | $228,786 | — | TRIM -18% |
| 8 | Wagner Wealth Management, LLC | 7,2687,268 | $181,317 | — | — |
| 9 | Sunrise Financial Services, LLC | 600600 | $14,968 | — | — |
| 10 | OSAIC HOLDINGS, INC. | 190190 | $4,740 | — | NEW |
| 11 | UBS Group AG | 9292 | $2,295 | — | NEW |
Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| Invesco Ltd. | 48K | 90K | 131K | 686K | 4.0M | 4.2M | $106M |
| CITADEL ADVISORS LLC | 51K | 47K | 45K | — | 93K | 91K | $2M |
| Mowery & Schoenfeld Wealth Management, LLC | — | — | — | — | — | 48K | $1M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | — | — | — | — | — | 17K | $418,682 |
| JANE STREET GROUP, LLC | — | 9K | — | 15K | — | 16K | $408,130 |
| Phillip James Consulting Co. | — | — | — | — | — | 15K | $296,000 |
| Claro Advisors Inc. | 13K | 12K | 11K | 11K | 11K | 9K | $228,786 |
| Wagner Wealth Management, LLC | 7K | 7K | 7K | 7K | 7K | 7K | $181,317 |
| Sunrise Financial Services, LLC | — | — | — | — | 600 | 600 | $14,968 |
| OSAIC HOLDINGS, INC. | 9K | — | — | — | — | 190 | $4,740 |
| UBS Group AG | — | — | — | 7 | — | 92 | $2,295 |
Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
Holder count only — too few computable %-of-shares-outstanding quarters for a % pane. Line breaks are quarters with no 13F record, never interpolated.
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 11 | 4,447,074 | — | $111M |
| 2025-Q4 | 6 | 4,121,785 | — | $104M |
| 2025-Q3 | 5 | 719,878 | — | $18M |
| 2025-Q2 | 5 | 194,434 | — | $5M |
| 2025-Q1 | 5 | 164,956 | — | $4M |
Short interest has its own tab now — open SI →
Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| Invesco Ltd. | +236,500 | $6M | ADD |
| Mowery & Schoenfeld Wealth Management, LLC | +47,913 | $1M | OPEN |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | +16,783 | $418,686 | OPEN |
| JANE STREET GROUP, LLC | +16,360 | $408,133 | OPEN |
| Phillip James Consulting Co. | +14,540 | $362,729 | OPEN |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| ROYAL BANK OF CANADA | −3,954 | $98,640 | CLOSE |
| Claro Advisors Inc. | −2,051 | $51,166 | TRIM |
| CITADEL ADVISORS LLC | −1,159 | $28,914 | — |
The 2025-Q4 register is as-filed in ITS OWN share basis; every count below was rebased into the 2026-Q1 basis (no split in between, factor 1). Dollar figures value the SHARE delta at one price — the 2026-03-31 close — rather than differencing two filings' own reported values, which would mix the quarter's price move into the trade figure.
13Fs disclose LONG US-listed positions only — shorts, most derivatives, bonds and non-US listings are invisible here, and a filer's quarter-over-quarter change is not necessarily a trade (index rebalances, in-kind transfers and entity successions all read as flow).
| 2024-Q4 |
| 5 |
| 127,859 |
| — |
| $3M |
| 2024-Q3 | 8 | 134,739 | — | $3M |
| 2024-Q2 | 5 | 111,039 | — | $3M |
| 2024-Q1 | 8 | 120,108 | — | $3M |
| 2023-Q4 | 6 | 110,671 | — | $3M |
| 2023-Q3 | 6 | 110,096 | — | $3M |
| 2023-Q2 | 3 | 71,009 | — | $2M |
| 2023-Q1 | 1 | 13,344 | — | $332,666 |
