Aduro Clean Technologies Inc. (Nasdaq: ADUR), an SEC filer in Chemicals & Allied Products, closed at $14.17, -6.1%, on 2026-08-28, with a market cap of $447M as of 2026-08-27. Institutional ownership, earnings history and filed financials are on the tabs below.
% 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.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | Diametric Capital, LP | 116,835116,835 | $1M | — | NEW |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 79,33479,334 | $832,214 | — | TRIM -35% |
| 3 | UBS Group AG | 75,21775,217 | $789,026 | — | — |
| 4 | HRT FINANCIAL LP | 42,46142,461 | $445,000 | — | NEW |
| 5 | RAYMOND JAMES FINANCIAL INC | 42,39642,396 | $444,734 | — | ADD 131% |
| 6 | DGS Capital Management, LLC | 37,96637,966 | $398,263 | — | — |
| 7 | STIFEL FINANCIAL CORP | 36,89236,892 | $386,997 | — | NEW |
| 8 | IMC-Chicago, LLC | 32,57232,572 | $341,680 | — | NEW |
| 9 | NewEdge Advisors, LLC | 32,41632,416 | $340,044 | — | TRIM -3% |
| 10 | TWO SIGMA INVESTMENTS, LP | 29,76229,762 | $312,203 | — | — |
Ranked by each filer’s own reported value, not shares.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| Diametric Capital, LP | +116,835 | $1M | OPEN |
| HRT FINANCIAL LP | +42,461 | $445,416 | OPEN |
| STIFEL FINANCIAL CORP | +36,892 | $386,997 | OPEN |
| IMC-Chicago, LLC | +32,572 | $341,680 | OPEN |
| JANE STREET GROUP, LLC | +26,488 | $277,859 | OPEN |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| Empery Asset Management, LP | −571,046 | $6M | CLOSE |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | −43,025 | $451,332 | TRIM |
| Virtu Financial LLC | −10,852 | $113,837 | CLOSE |
| Engineers Gate Manager LP | −4,449 | $46,670 | TRIM |
| Gunpowder Capital Management, LLC dba Oliver Wealth Management | −2,000 | $20,980 | CLOSE |
Prior quarter split-rebased · 13Fs are long, US-listed only.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| Diametric Capital, LP | — | — | 39K | 21K | — | 117K | $1M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | — | — | 16K | 119K | 122K | 79K | $832,214 |
| UBS Group AG | — | 9K | 58K | 71K | 74K | 75K | $789,026 |
| HRT FINANCIAL LP | — | — | 18K | — | — | 42K | $445,000 |
| RAYMOND JAMES FINANCIAL INC | — | — | 5K | — | 18K | 42K | $444,734 |
| DGS Capital Management, LLC | — | — | — | 23K | 38K | 38K | $398,263 |
| STIFEL FINANCIAL CORP | — | — | — | — | — | 37K | $386,997 |
| IMC-Chicago, LLC | — | — | — | — | — | 33K | $341,680 |
| NewEdge Advisors, LLC | 100 | 100 | 21K | 32K | 33K | 32K | $340,044 |
| TWO SIGMA INVESTMENTS, LP | — | — | — | 39K | 30K | 30K | $312,203 |
Green = added, red = trimmed, grey = held; a dash is a quarter with no 13F on file — a gap, not an exit.
Breaks = no 13F that quarter.
Short interest has its own tab now — open SI →
SEC Form 13F · ~10,250 filers, 10y · long-only, US-listed, filed ≤45d after quarter-end.
