$ADUR

$9.60 -$0.17 (1.74%) Close

$ADUR Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 33.9M shares outstanding

Who owns ADUR?

By type of holder

Institutions 2.7% Everyone else 97.3%

No insider has reported a holding in the last two years, so insiders are counted in "Everyone else".

Concentration Top 10 holders own 28.0%

Avshalom Ofer Vicus 26.4% · MMCAP International Inc. SPC 0.4%

Institutional ownership

2.7%

+0.5 pts vs last qtr

Institutional holders

+2 vs last qtr

Net shares bought

+163.6K

by institutions in Q2 2026

New / sold out

14 / 12

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

MMCAP International Inc. SPC NEW +140.4K
Marshall Wace, LLP NEW +76.5K

Biggest sellers in Q2 2026

Diametric Capital, LP −85.0K
Susquehanna International Group, LLP SOLD OUT −79.3K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Aduro Clean Technologies Inc in the last 12 months.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for Aduro Clean Technologies Inc.

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years17% Under 1 year83%

Quarterly turnover

59.6%

of institutional shares changed hands

Top 10 managers, median time held

1 quarter

Super Investors

Investment managers reporting ADUR on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
MI MMCAP International Inc. SPC	140.4K	0.41%	NEW	Q2 '26	0.2%
Shares held by quarter Peak holding140.4K (Q2'26) Change over 8 quarters+140.4K Share of the company0.410% MMCAP International Inc. SPC's full portfolio →
DC Diametric Capital, LP	31.9K	0.09%	−85.0K (−72.7%)	Q1 '26	0.1%
Shares held by quarter Peak holding116.8K (Q1'26) Change over 8 quarters+31.9K Share of the company0.090% Diametric Capital, LP's full portfolio →

MMCAP International Inc. SPC

140.4K

% of company

0.41%

Change vs last qtr

NEW

Held since

Q2 '26

Diametric Capital, LP

31.9K

% of company

0.09%

Change vs last qtr

−85.0K (−72.7%)

Held since

Q1 '26

28 more super investors behind a free account

See every manager holding Aduro Clean Technologies Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ADUR on Form N-PORT; together they hold 0.0% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
FN Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust	$652K	47.2K	0.14%	0.00%	August 31, 2026
SS State Street(R) SPDR(R) S&P(R) International Small Cap ETF SPDR Index Shares Funds	$304K	19.3K	0.06%	0.04%	June 30, 2026

Fidelity Nasdaq Composite Index Fund

Fidelity Concord Street Trust

Position value

$652K

% of company

0.14%

% of the fund

0.00%

As of

August 31, 2026

State Street(R) SPDR(R) S&P(R) International Small Cap ETF

SPDR Index Shares Funds

Position value

$304K

% of company

0.06%

% of the fund

0.04%

As of

June 30, 2026

2 more funds behind a free account

See every fund holding Aduro Clean Technologies Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
AO Avshalom Ofer Vicus 5%+ holder 13D · 24.9%	8.9M	26.37%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company26.370% Disclosed stake13D · 24.9% View the 13D/G filing →

Avshalom Ofer Vicus

5%+ holder13D · 24.9%

8.9M

% of company

26.37%

Change vs last qtr

—

Held since

—

Comments