$ACOG

$8.30 -$0.04 (0.48%) Close

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

Ownership

13F as of Q2 2026 · 21.8M shares outstanding

Who owns ACOG?

By type of holder

Institutions 48.1% Insiders 4.6% Everyone else 47.4%

Concentration Top 10 holders own 47.4%

Opaleye Management Inc. 13.3% · Solas Capital Management, LLC 8.8%

Institutional ownership

48.1%

-0.2 pts vs last qtr

Institutional holders

+1 vs last qtr

Net shares bought

−43.5K

by institutions in Q2 2026

New / sold out

1 / 0

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Opaleye Management Inc. +333.5K
Citadel Advisors LLC +8.0K

Biggest sellers in Q2 2026

Ikarian Capital, LLC −220.0K
Cantor Fitzgerald, L. P. −79.7K

Who is planning to sell?

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

Is your stake being diluted?

Diluted share count, FY2023–FY2025

+393.1%

+122.07% a year

Each share's claim on the business

−79.7%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $8.42M

over 3 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years66% Under 1 year34%

Quarterly turnover

3.5%

of institutional shares changed hands

Top 10 managers, median time held

1.5 years

Super Investors

Investment managers reporting ACOG on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
OM Opaleye Management Inc.	2.9M	13.30%	+333.5K (+13.0%)	Q3 '25	1.9%
Shares held by quarter Peak holding2.9M (Q2'26) Change over 8 quarters+2.9M Share of the company13.300% Opaleye Management Inc.'s full portfolio →
SC Solas Capital Management, LLC	1.9M	8.84%	Unchanged	2024	7.5%
Shares held by quarter Peak holding2.0M (Q4'25) Change over 8 quarters+1.9M Share of the company8.840% Solas Capital Management, LLC's full portfolio →

Opaleye Management Inc.

2.9M

% of company

13.30%

Change vs last qtr

+333.5K (+13.0%)

Held since

Q3 '25

Solas Capital Management, LLC

1.9M

% of company

8.84%

Change vs last qtr

Unchanged

Held since

2024

23 more super investors behind a free account

See every manager holding Alpha Cognition Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ACOG on Form N-PORT; together they hold 0.1% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
FN Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust	$133K	14.3K	0.07%	0.00%	August 31, 2026

Fidelity Nasdaq Composite Index Fund

Fidelity Concord Street Trust

Position value

$133K

% of company

0.07%

% of the fund

0.00%

As of

August 31, 2026

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
ML Mertz Leonard Powell Insider	267.2K	1.23%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company1.230% Mertz Leonard Powell's insider activity →
CK Cawkell Kenneth Anthony Insider	230.7K	1.06%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company1.060% Cawkell Kenneth Anthony's insider activity →

Mertz Leonard Powell

Insider

267.2K

% of company

1.23%

Change vs last qtr

—

Held since

—

Cawkell Kenneth Anthony

Insider

230.7K

% of company

1.06%

Change vs last qtr

—

Held since

—

8 more holders behind a free account

See every insider and 5%+ holder of Alpha Cognition Inc.

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