% of shares outstanding is not shown for UDOW: 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 UDOW in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
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 |
|---|---|---|---|---|---|---|---|
| CITADEL ADVISORS LLC | 72K | 46K | — | 211K | 346K | 93K | $5M |
| Spectrum Financial Alliance Ltd LLC | — | — | — | 12K | 35K | 89K | $4M |
| Optiver Holding B.V. | — | — | 1K | 6K | 33K | 65K | $3M |
| Tower Research Capital LLC (TRC) | 5 | 28K | 39K | 18K | 42K | 54K | $3M |
| IMC-Chicago, LLC | 26K | 15K | 47K | 45K | 62K | 51K | $3M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 65K | 28K | 58K | 38K | 79K | 46K | $2M |
| FLOW TRADERS U.S. LLC | 12K | 27K | 64K | 47K | — | 43K | $2M |
| GOLDMAN SACHS GROUP INC | 20K | 20K | 20K | 20K | 40K | 40K | $2M |
| Ascentis Independent Advisors | 10K | 10K | 10K | 10K | 18K | 36K | $2M |
| XTX Topco Ltd | — | 5K | — | — | 6K | 35K | $2M |
| Gotham Asset Management, LLC | — | 24K | 20K | 20K | 39K | 29K | $1M |
| Corient Private Wealth LLC | 18K | 19K | 20K | 14K | 48K | 24K | $1M |
| GTS SECURITIES LLC | 36K | 5K | 60K | 18K | — | 20K | $996,812 |
| Canal Capital Management, LLC | 9K | 9K | 9K | 9K | 18K | 18K | $911,558 |
| Headlands Technologies LLC | — | — | — | — | — | 17K | $872,279 |
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.
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 | |
|---|---|---|---|
| Spectrum Financial Alliance Ltd LLC | +53,304 | $3M | ADD |
| FLOW TRADERS U.S. LLC | +43,322 | $2M | OPEN |
| Optiver Holding B.V. | +31,935 | $2M | ADD |
| XTX Topco Ltd | +29,847 | $1M | ADD |
| GTS SECURITIES LLC | +19,854 | $996,274 | OPEN |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| JANE STREET GROUP, LLC | −488,193 | $24M | CLOSE |
| CITADEL ADVISORS LLC | −252,280 | $13M | TRIM |
| Jump Financial, LLC | −47,510 | $2M | CLOSE |
| Encompass More Asset Management | −45,130 | $2M | CLOSE |
| Squarepoint Ops LLC | −38,346 | $2M | TRIM |
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).
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 57 | 831,602 | — | $42M |
| 2025-Q4 | 62 | 1,688,396 | — | $98M |
| 2025-Q3 | 64 | 995,983 | — | $107M |
| 2025-Q2 | 57 | 770,531 | — | $73M |
| 2025-Q1 | 52 | 461,072 | — | $40M |
| 2024-Q4 | 62 | 818,420 | — | $77M |
| 2024-Q3 | 56 | 504,391 | — | $48M |
| 2024-Q2 | 48 | 603,767 | — | $47M |
| 2024-Q1 | 45 | 758,417 | — | $65M |
| 2023-Q4 | 46 | 2,418,576 | — | $180M |
| 2023-Q3 | 42 | 662,195 | — | $36M |
| 2023-Q2 | 46 | 717,648 | — | $43M |
| 2023-Q1 | 34 | 425,777 | — | $24M |
| 2022-Q4 | 38 | 637,561 | — | $36M |
| 2022-Q3 | 28 | 488,523 | — | $19M |
| 2022-Q2 | 33 | 374,121 | — | $18M |
| 2022-Q1 | 31 | 619,676 | — | $45M |
| 2021-Q4 | 37 | 779,265 | — | $66M |
| 2021-Q3 | 34 | 549,941 | — | $38M |
| 2021-Q2 | 42 | 674,113 | — | $49M |
| 2021-Q1 | 34 | 409,905 | — | $53M |
| 2020-Q4 | 34 | 518,323 | — | $53M |
| 2020-Q3 | 30 | 373,727 | — | $29M |
| 2020-Q2 | 32 | 815,400 | — | $51M |
| 2020-Q1 | 27 | 733,352 | — | $31M |
| 2019-Q4 | 20 | 282,865 | — | $35M |
| 2019-Q3 | 25 | 359,032 | — | $38M |
| 2019-Q2 | 23 | 441,892 | — | $45M |
| 2019-Q1 | 30 | 587,443 | — | $57M |
| 2018-Q4 | 27 | 436,013 | — | $31M |
| 2018-Q3 | 21 | 164,445 | — | $18M |
| 2018-Q2 | 22 | 140,131 | — | $12M |
| 2018-Q1 | 21 | 191,644 | — | $16M |
| 2017-Q4 | 22 | 114,359 | — | $11M |
| 2017-Q3 | 15 | 102,751 | — | $7M |
| 2017-Q2 | 12 | 90,375 | — | $11M |
| 2017-Q1 | 14 | 106,323 | — | $12M |
| 2016-Q4 | 16 | 141,710 | — | $13M |
| 2016-Q3 | 20 | 99,302 | — | $7M |
| 2016-Q2 | 17 | 266,563 | — | $19M |
| 2016-Q1 | 19 | 157,960 | — | $11M |
| 2015-Q4 | 17 | 145,995 | — | $9M |
| 2015-Q3 | 14 | 125,520 | — | $7M |
| 2015-Q2 | 6 | 34,637 | — | $2M |
| 2015-Q1 | 14 | 88,915 | — | $12M |
| 2014-Q4 | 12 | 142,261 | — | $20M |
| 2014-Q3 | 9 | 77,486 | — | $10M |
| 2014-Q2 | 11 | 179,062 | — | $21M |
| 2014-Q1 | 9 | 150,179 | — | $17M |
| 2013-Q4 | 7 | 59,545 | — | $7M |
| 2013-Q3 | 8 | 117,072 | — | $10M |
| 2013-Q2 | 9 | 75,377 | — | $6M |
| 2013-Q1 | 1 | 4,958 | — | $375,000 |
