ADUR
Aduro Clean Technologies Inc.Company with tickers: ADUR
CIK
1863934
CUSIP
007408206
Shares Outstanding
33,727,303
13F Activity (30d)
31 filings
31 filers
Holders: 38
Total Value: $11,252,585
Total Shares: 1,072,698
Institutional Ownership Trend
Holder Concentration
Across 38 13F filers · Δ vs Dec 31, 2025Top Holder
19.8%
−24.3 pts
Top 5
60.5%
−19.6 pts
Top 10
78.4%
−12.7 pts
HHI
935
Broadly held
−1,528
Quarterly Activity
vs Dec 31, 2025
New
11
Increased
14
Decreased
5
Sold Out
6
Unchanged
8
Holder count:
+5
Institutional value:
-16.3%
Shares held:
-17.3%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega CITADEL ADVISORS LLC | +84,800 | 154,500 | |
| Mega JANE STREET GROUP, LLC | +27,488 | 89,988 | |
| Mega RAYMOND JAMES FINANCIAL INC | +24,060 | 42,396 | |
| Mega MORGAN STANLEY | +13,586 | 21,109 | |
| Mega GOLDMAN SACHS GROUP INC | +8,742 | 18,742 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | −49,425 | 211,934 | |
| Mid Engineers Gate Manager LP | −4,449 | 10,887 | |
| Mega ROYAL BANK OF CANADA | −123 | 2,091 | |
| Large NATIONAL BANK OF CANADA /FI/ | −95 | 6,830 | |
| Large Federation des caisses Desjardins du Quebec | −15 | 165 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Small Diametric Capital, LP | 116,835 | $1,225,599 | |
| Large HRT FINANCIAL LP | 42,461 | $445,415 | |
| Large STIFEL FINANCIAL CORP | 36,892 | $386,997 | |
| Mid IMC-Chicago, LLC | 32,572 | $341,680 | |
| Mid PRELUDE CAPITAL MANAGEMENT, LLC | 17,782 | $186,533 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Micro Empery Asset Management, LP | 571,046 | $5,916,036 | |
| Mid NewEdge Advisors, LLC | 33,344 | $345,443 | |
| Mid Virtu Financial LLC | 10,852 | $112,426 | |
| Micro Gunpowder Capital Management, LLC dba Oliver Wealth Management | 2,000 | $20,720 | |
| Mega BNP PARIBAS ARBITRAGE, SA | 450 | $4,662 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Small Diametric Capital, LP | $1,225,599 | 10.89% | 116,835 | Shares | Defined | 2026-05-15 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,041,657 | 9.26% | 99,300 | Put | Other | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $840,249 | 7.47% | 80,100 | Call | Defined | 2026-05-15 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $832,213 | 7.40% | 79,334 | Shares | Other | 2026-05-15 | ||||
| Mega UBS Group AG | $789,026 | 7.01% | 75,217 | Shares | Defined | 2026-05-05 | ||||
| Mega CITADEL ADVISORS LLC | $780,456 | 6.94% | 74,400 | Put | Defined | 2026-05-15 | ||||
| Large HRT FINANCIAL LP | $445,415 | 3.96% | 42,461 | Shares | Defined | 2026-05-14 | ||||
| Mega RAYMOND JAMES FINANCIAL INC | $444,733 | 3.95% | 42,396 | Shares | Defined | 2026-05-14 | ||||
| Small DGS Capital Management, LLC | $398,263 | 3.54% | 37,966 | Shares | Sole | 2026-04-28 | ||||
| Large STIFEL FINANCIAL CORP | $386,997 | 3.44% | 36,892 | Shares | Defined | 2026-05-12 | ||||
| Mega JANE STREET GROUP, LLC | $354,562 | 3.15% | 33,800 | Put | Defined | 2026-05-12 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $349,317 | 3.10% | 33,300 | Call | Other | 2026-05-15 | ||||
| Mid IMC-Chicago, LLC | $341,680 | 3.04% | 32,572 | Shares | Sole | 2026-05-05 | ||||
| Mega TWO SIGMA INVESTMENTS, LP | $312,203 | 2.77% | 29,762 | Shares | Sole | 2026-05-15 | ||||
| Mega JANE STREET GROUP, LLC | $311,553 | 2.77% | 29,700 | Call | Defined | 2026-05-12 | ||||
| Mega JANE STREET GROUP, LLC | $277,858 | 2.47% | 26,488 | Shares | Defined | 2026-05-12 | ||||
| Small One Wealth Advisors, LLC | $232,878 | 2.07% | 22,200 | Shares | Sole | 2026-04-21 | ||||
| Mega MORGAN STANLEY | $221,432 | 1.97% | 21,109 | Shares | Defined | 2026-05-15 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $201,743 | 1.79% | 19,232 | Shares | Defined | 2026-05-15 | ||||
| Mega STATE STREET CORP | $200,338 | 1.78% | 19,098 | Shares | Defined | 2026-05-15 | ||||
| Mega GOLDMAN SACHS GROUP INC | $196,603 | 1.75% | 18,742 | Shares | Defined | 2026-05-15 | ||||
| Mid PRELUDE CAPITAL MANAGEMENT, LLC | $186,533 | 1.66% | 17,782 | Shares | Other | 2026-05-15 | ||||
| Mid Perigon Wealth Management, LLC | $162,542 | 1.44% | 15,495 | Shares | Sole | 2026-04-10 | ||||
| Mega BANK OF AMERICA CORP /DE/ Bank | $122,523 | 1.09% | 11,680 | Shares | Defined | 2026-05-18 | ||||
| Mid Engineers Gate Manager LP | $114,204 | 1.01% | 10,887 | Shares | Sole | 2026-05-15 | ||||
| Large Mariner, LLC | $104,900 | 0.93% | 10,000 | Shares | Sole | 2026-05-13 | ||||
| Large NATIONAL BANK OF CANADA /FI/ Bank | $71,646 | 0.64% | 6,830 | Shares | Defined | 2026-05-15 | ||||
| Mega CITIGROUP INC | $61,146 | 0.54% | 5,829 | Shares | Defined | 2026-05-11 | ||||
| Mega WELLS FARGO & COMPANY/MN | $41,960 | 0.37% | 4,000 | Shares | Defined | 2026-05-11 | ||||
| Mega BlackRock, Inc. | $41,141 | 0.37% | 3,922 | Shares | Sole | 2026-05-13 | ||||
| Micro Longview Financial Advisors, Inc. | $27,515 | 0.24% | 2,623 | Shares | Sole | 2026-04-20 | ||||
| Mid SIMPLEX TRADING, LLC | $26,571 | 0.24% | 2,533 | Shares | Sole | 2026-05-14 | ||||
| Mid GROUP ONE TRADING LLC | $25,511 | 0.23% | 2,432 | Shares | Sole | 2026-05-13 | ||||
| Mega ROYAL BANK OF CANADA Bank | $21,934 | 0.19% | 2,091 | Shares | Defined | 2026-05-15 | ||||
| Mid SouthState Bank Corp Bank | $20,980 | 0.19% | 2,000 | Shares | Defined | 2026-05-05 | ||||
| Large JONES FINANCIAL COMPANIES LLLP | $10,196 | 0.09% | 972 | Shares | Sole | 2026-05-15 | ||||
| Large OSAIC HOLDINGS, INC. | $8,916 | 0.08% | 850 | Shares | Defined | 2026-05-15 | ||||
| Mega BARCLAYS PLC | $8,843 | 0.08% | 843 | Shares | Defined | 2026-05-15 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $6,818 | 0.06% | 650 | Shares | Defined | 2026-04-28 | ||||
| Large Federation des caisses Desjardins du Quebec | $1,730 | 0.02% | 165 | Shares | Defined | 2026-05-14 | ||||
| Mid Quantbot Technologies LP | $1,447 | 0.01% | 138 | Shares | Sole | 2026-05-13 | ||||
| Mid Spire Wealth Management | $524 | 0.00% | 50 | Shares | Sole | 2026-04-22 | ||||
| Small Physician Wealth Advisors, Inc. | $230 | 0.00% | 22 | Shares | Sole | 2026-04-24 | ||||
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