% of shares outstanding not shown: no SEC cover-page share count falls within 120 days of the 2026-Q1 quarter end, so any percentage would rest on a count that cannot speak for this quarter. Holder share counts are shown as filed.
Crowding percentile withheld — no market cap for KDKRW 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 | BOOTHBAY FUND MANAGEMENT, LLC | 585,429585,429 | $4M | — | ADD 36% |
| 2 | LMR Partners LLP | 2,988,9623.0M | $3M | — | ADD 3% |
| 3 | Polar Asset Management Partners Inc. | 2,358,5872.4M | $3M | — | ADD 105% |
| 4 | Linden Advisors LP | 1,755,7611.8M | $2M | — | — |
| 5 | METEORA CAPITAL, LLC | 1,367,7711.4M | $1M | — | TRIM -54% |
| 6 | Alberta Investment Management Corp | 850,000850,000 | $918,000 | — | — |
| 7 | ARISTEIA CAPITAL, L.L.C. | 837,612837,612 | $908,809 | — | — |
| 8 | Hudson Bay Capital Management LP | 756,494756,494 | $817,014 | — | ADD 49% |
| 9 | WOLVERINE ASSET MANAGEMENT LLC | 423,565423,565 | $457,450 | — | TRIM -7% |
| 10 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 375,000375,000 | $405,000 | — | — |
| 11 | Caption Management, LLC | 206,270206,270 | $222,772 | — | NEW |
| 12 | BARCLAYS PLC | 200,000200,000 | $216,000 | — | — |
| 13 | MOORE CAPITAL MANAGEMENT, LP | 200,000200,000 | $216,000 | — | — |
| 14 | CSS LLC/IL | 150,760150,760 | $162,821 | — | TRIM -80% |
| 15 | Shaolin Capital Management LLC | 125,000125,000 | $135,000 | — | TRIM -38% |
| 16 | Ionic Capital Management LLC | 111,015111,015 | $119,896 | — | ADD 10% |
| 17 | Boussard & Gavaudan Investment Management LLP | 100,000100,000 | $104,500 | — | — |
| 18 | BLUEFIN CAPITAL MANAGEMENT, LLC | 89,79989,799 | $96,983 | — | ADD 7% |
| 19 | Sculptor Capital LP | 68,90068,900 | $74,757 | — | TRIM -33% |
| 20 | DRW Securities, LLC | 64,51864,518 | $69,679 | — | NEW |
| 21 | DUPONT CAPITAL MANAGEMENT CORP | 62,50062,500 | $67,500 | — | — |
| 22 | TENOR CAPITAL MANAGEMENT Co., L.P. | 50,00050,000 | $54,000 | — | — |
| 23 | TPG GP A, LLC | 50,00050,000 | $54,000 | — | NEW |
| 24 | K2 PRINCIPAL FUND, L.P. | 41,76441,764 | $45,105 | — | TRIM -76% |
| 25 | Clear Street Group Inc. | 30,66330,663 | $33,116 | — | — |
| 26 | Walleye Capital LLC | 10,00010,000 | $10,800 | — | NEW |
| 27 | FNY Investment Advisers, LLC | 9,0009,000 | $9,000 | — | — |
| 28 | UBS Group AG | 3,8583,858 | $4,167 | — | ADD 88% |
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 |
|---|---|---|---|---|---|---|---|
| BOOTHBAY FUND MANAGEMENT, LLC | — | — | — | — | 430K | 585K | $4M |
| LMR Partners LLP | — | 1.7M | 2.7M | 2.7M | 2.9M | 3.0M | $3M |
| Polar Asset Management Partners Inc. | 1.3M | 1.3M | 1.1M | 1.1M | 1.1M | 2.4M | $3M |
| Linden Advisors LP | 1.0M | 1.2M | 1.8M | 1.8M | 1.8M | 1.8M | $2M |
| METEORA CAPITAL, LLC | — | 100K | 504K | 595K | 3.0M | 1.4M | $1M |
| Alberta Investment Management Corp | 850K | 850K | 850K | 850K | 850K | 850K | $918,000 |
| ARISTEIA CAPITAL, L.L.C. | 955K | 929K | 929K | 908K | 826K | 838K | $908,809 |
| Hudson Bay Capital Management LP | 20K | — | 105K | 227K | 507K | 756K | $817,014 |
| WOLVERINE ASSET MANAGEMENT LLC | — | — | — | 30K | 455K | 424K | $457,450 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 375K | 375K | 375K | 375K | 375K | 375K | $405,000 |
| Caption Management, LLC | — | — | — | — | — | 206K | $222,772 |
| MOORE CAPITAL MANAGEMENT, LP | 250K | 250K | 250K | 200K | 200K | 200K | $216,000 |
| BARCLAYS PLC | — | — | — | — | 200K | 200K | $216,000 |
| CSS LLC/IL | 120K | 211K | 213K | 285K | 745K | 151K | $162,821 |
| Shaolin Capital Management LLC | 850K | 763K | 350K | 300K | 200K | 125K | $135,000 |
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 | 28 | 13,873,228 | — | $18M |
| 2025-Q4 | 31 | 15,134,912 | — | $27M |
| 2025-Q3 | 32 | 12,452,370 | — | $13M |
| 2025-Q2 | 33 | 14,152,313 | — | $16M |
| 2025-Q1 | 34 | 15,738,422 | — | $5M |
| 2024-Q4 | 37 | 14,632,346 | — | $2M |
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 | |
|---|---|---|---|
| Polar Asset Management Partners Inc. | +1,208,687 | $1M | ADD |
| Hudson Bay Capital Management LP | +249,654 | $269,626 | ADD |
| Caption Management, LLC | +206,270 | $222,772 | OPEN |
| BOOTHBAY FUND MANAGEMENT, LLC | +154,950 | $167,346 | ADD |
| LMR Partners LLP | +80,508 | $86,949 | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| METEORA CAPITAL, LLC | −1,611,707 | $2M | TRIM |
| CSS LLC/IL | −594,154 | $641,686 | TRIM |
| AQR Arbitrage LLC | −373,784 | $403,687 | CLOSE |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | −367,930 | $397,364 | CLOSE |
| K2 PRINCIPAL FUND, L.P. | −132,087 | $142,654 | 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).
| 2024-Q3 | 39 | 17,701,120 | — | $3M |
| 2024-Q2 | 38 | 16,684,377 | — | $2M |
| 2024-Q1 | 38 | 17,695,900 | — | $3M |
| 2023-Q4 | 41 | 17,926,691 | — | $3M |
| 2023-Q3 | 42 | 17,212,643 | — | $4M |
| 2023-Q2 | 26 | 10,332,488 | — | $3M |
