Stock

Alpha Cognition Inc.

ACOG · held by 27 managers

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025

Reported value

$64.4M

Holders

+2 new · −2 exited

Holders’ est. mark

−$616

Price effect on 1 books still in the name

Largest holder

$13.5M

Opaleye Management Inc.

Notable conviction

Share of each notable manager’s 13F book.

Citadel0.0% · $769.7K

Holder count by quarter

Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026

Who holds it

Notable only

Investor	Shares	Value	Est. mark	Change
Opaleye Management Inc.	2.07M	$13.5M	—	Held
Solas Capital Management, LLC	1.97M	$12.8M	—	Held
AWM Investment Company, Inc.	1.67M	$10.9M	—	Held
Cable Car Capital, LP	1.06M	$6.89M	—	Held
Ikarian Capital, LLC	1.06M	$6.87M	—	Held
SPHERA FUNDS MANAGEMENT LTD.	567.6K	$3.69M	—	Held
Alyeska Investment Group, L.P.	365K	$2.37M	—	Held
BOOTHBAY FUND MANAGEMENT, LLC	256.4K	$1.67M	—	Held
Aristides Capital LLC	215.5K	$1.4M	—	Held
CANTOR FITZGERALD, L. P.	163.4K	$1.06M	—	New
Citadel	118.4K	$769.7K	—	Held
VILLERE ST DENIS J & CO LLC	73.9K	$480.2K	—	Held
TUDOR INVESTMENT CORP ET AL	61.6K	$400.4K	−$616	Cut−$616
TWO SIGMA INVESTMENTS, LP	57.6K	$374.2K	—	Held
MARSHALL WACE, LLP	53.2K	$345.8K	—	Held
ACT CAPITAL MANAGEMENT, LLC	51.5K	$334.8K	—	Held
SUSQUEHANNA INTERNATIONAL GROUP, LLP	34.7K	$225.6K	—	Held
BERKSHIRE ASSET MANAGEMENT LLC/PA	19.8K	$128.9K	—	Held
Quadrature Capital Ltd	12.5K	$81.3K	—	Held
GEODE CAPITAL MANAGEMENT, LLC	12K	$77.9K	—	Held
Green Alpha Advisors, LLC	11.1K	$72.3K	—	Held
NATIONAL BANK OF CANADA /FI/	5.29K	$34.4K	—	Held
UBS Group AG	927	$6.03K	—	Held
Allworth Financial LP	750	$4.88K	—	New
Steward Partners Investment Advisory, LLC	200	$1.3K	—	Held
ROYAL BANK OF CANADA	122	$1K	—	Held
PNC Financial Services Group, Inc.	120	$780	—	Held

Who left

CORSAIR CAPITAL MANAGEMENT, L.P.$878.2K
MORGAN STANLEY$5.47K

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.