13F

Stock

Alpha Cognition Inc.

ACOG · held by 25 managers

Reported value

$57.8M

Holders

25

+3 new · −5 exited

Holders’ est. mark

−$9.78M

Price effect on 22 books still in the name

Largest holder

$14.1M

Opaleye Management Inc.

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Opaleye Management Inc.2.56M$14.1M−$2.09MAdded$605K
Solas Capital Management, LLC1.92M$10.6M−$1.94MCut−$2.23M
AWM Investment Company, Inc.1.67M$9.18M−$1.69MCut−$1.69M
Cable Car Capital, LP1.38M$7.59M−$1.07MAdded$697.7K
Ikarian Capital, LLC1.06M$5.8M−$1.07MCut−$1.07M
SPHERA FUNDS MANAGEMENT LTD.567.6K$3.12M−$573.3KCut−$573.3K
Alyeska Investment Group, L.P.365K$2M−$368.6KCut−$368.6K
BOOTHBAY FUND MANAGEMENT, LLC256.4K$1.41M−$259KCut−$259K
Aristides Capital LLC218.5K$1.2M−$217.6KCut−$200.9K
CANTOR FITZGERALD, L. P.188.6K$1.04M−$165.1KCut−$26.7K
Citadel89.6K$491.8K−$90.5KCut−$277.9K
VILLERE ST DENIS J & CO LLC71.2K$390.7K−$71.9KCut−$89.5K
TUDOR INVESTMENT CORP ET AL61.6K$338.2K−$62.2KCut−$62.2K
ACT CAPITAL MANAGEMENT, LLC51.5K$282.7K−$52KCut−$52K
BERKSHIRE ASSET MANAGEMENT LLC/PA19.8K$108.8K−$20KCut−$20K
TWO SIGMA INVESTMENTS, LP15.9K$87.2K−$16KCut−$287K
GEODE CAPITAL MANAGEMENT, LLC12K$65.8K−$12.1KCut−$12.1K
RAYMOND JAMES FINANCIAL INC10K$54.9KNew
NATIONAL BANK OF CANADA /FI/5.29K$28.3K−$6.1KCut−$6.1K
Allworth Financial LP750$4.12K−$757Cut−$757
ROYAL BANK OF CANADA679$4K−$281Added$3K
UBS Group AG438$2.4K−$442Cut−$3.62K
Steward Partners Investment Advisory, LLC200$1.1K−$202Cut−$202
JONES FINANCIAL COMPANIES LLLP100$508New
HARBOUR INVESTMENTS, INC.4$25New

Who left

Positions as of Q1 2026. 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.