% of shares outstanding is not shown for KRBN: 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 KRBN 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 |
|---|---|---|---|---|---|---|---|
| JANE STREET GROUP, LLC | 141K | 178K | 45K | 42K | 94K | 113K | $3M |
| FLOW TRADERS U.S. LLC | 37K | 197K | 51K | 155K | 163K | 109K | $3M |
| Riverwater Partners LLC | 84K | 89K | 91K | 89K | 92K | 85K | $3M |
| WBI INVESTMENTS, LLC | — | 46K | 67K | 102K | 124K | 52K | $2M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 10K | 17K | — | 36K | — | 27K | $790,853 |
| Prime Capital Investment Advisors, LLC | — | — | — | — | 36K | 26K | $768,666 |
| Ascentis Independent Advisors | — | — | — | — | — | 23K | $688,481 |
| SG Americas Securities, LLC | 40K | 40K | 40K | 20K | 20K | 20K | $594,000 |
| UBS Group AG | 21K | 16K | 17K | 11K | 696 | 19K | $567,969 |
| PFG Investments, LLC | — | — | 11K | 11K | 14K | 13K | $396,184 |
| JPMORGAN CHASE & CO | 17K | 14K | 13K | 25K | 13K | 11K | $330,533 |
| FOSTER DYKEMA CABOT & PARTNERS, LLC | 11K | 11K | 11K | 11K | 11K | 11K | $317,535 |
| Maridea Wealth Management LLC | — | — | — | 13K | 13K | 9K | $278,017 |
| Wealthfront Advisers LLC | 12K | 11K | 9K | 9K | 8K | 9K | $266,082 |
| Pathstone Holdings, LLC | 8K | 8K | 8K | 8K | 8K | 8K | $241,528 |
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 | |
|---|---|---|---|
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | +26,637 | $790,853 | OPEN |
| Ascentis Independent Advisors | +23,189 | $688,481 | OPEN |
| JANE STREET GROUP, LLC | +19,667 | $583,913 | ADD |
| UBS Group AG | +18,434 | $547,305 | ADD |
| CITIGROUP INC | +1,272 | $37,766 | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| Q3 Asset Management | −107,196 | $3M | CLOSE |
| WBI INVESTMENTS, LLC | −71,778 | $2M | TRIM |
| FLOW TRADERS U.S. LLC | −54,354 | $2M | TRIM |
| T3 Companies, LLC | −31,334 | $930,306 | CLOSE |
| Sharp Wealth Advisory, LLC | −10,136 | $300,938 | CLOSE |
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 | 45 | 581,032 | — | $17M |
| 2025-Q4 | 54 | 823,219 | — | $29M |
| 2025-Q3 | 54 | 796,444 | — | $26M |
| 2025-Q2 | 52 | 693,279 | — | $21M |
| 2025-Q1 | 51 | 901,083 | — | $25M |
| 2024-Q4 | 62 | 787,419 | — | $23M |
| 2024-Q3 | 70 | 1,712,859 | — | $54M |
| 2024-Q2 | 73 | 1,985,090 | — | $65M |
| 2024-Q1 | 79 | 1,610,256 | — | $50M |
| 2023-Q4 | 102 | 2,140,620 | — | $78M |
| 2023-Q3 | 106 | 2,573,953 | — | $93M |
| 2023-Q2 | 104 | 3,113,714 | — | $114M |
| 2023-Q1 | 113 | 3,167,955 | — | $125M |
| 2022-Q4 | 112 | 3,334,861 | — | $121M |
| 2022-Q3 | 101 | 4,305,576 | — | $160M |
| 2022-Q2 | 135 | 6,143,063 | — | $300M |
| 2022-Q1 | 149 | 6,183,914 | — | $286M |
| 2021-Q4 | 149 | 5,253,680 | — | $267M |
| 2021-Q3 | 99 | 2,737,944 | — | $113M |
| 2021-Q2 | 69 | 1,257,128 | — | $46M |
| 2021-Q1 | 25 | 439,706 | — | $13M |
| 2020-Q4 | 8 | 89,104 | — | $2M |
| 2020-Q3 | 3 | 63,500 | — | $1M |
