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ACOG ALPHA COGNITION INC

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COM NEW (common), issuer CIK 1655923

27 managers (27 13F filers) reported a position in ACOG shares at 2025-12-31, 9,909,100 shares in all. 6 filers opened a position and 8 filers sold out during the quarter.

Managers
27
13F filers
27
New
6
Added
11
Reduced
3
Sold out
8
Shares held by filers
9,909,100

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Opaleye Management Inc.2,070,784$13.5M1.78%+1,955,64213F-HR/ATimeline
Solas Capital Management, LLC1,968,052$12.8M7.26%+685,86013F-HRTimeline
AWM Investment Company, Inc.1,672,168$10.9M1.05%+576,51613F-HRTimeline
Cable Car Capital, LP1,060,212$6.89M0.43%+191,21013F-HRTimeline
Ikarian Capital, LLCin group Ikarian Capital, LLC1,056,259$6.87M0.89%+110,00013F-HRTimelineGroup
SPHERA FUNDS MANAGEMENT LTD.in group SPHERA FUNDS MANAGEMENT LTD.567,616$3.69M0.77%+228,86413F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.365,000$2.37M0.01%new13F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC256,393$1.67M0.04%-35,47513F-HRTimeline
Aristides Capital LLC215,458$1.4M0.48%+50,00013F-HR/ATimeline
CANTOR FITZGERALD, L. P.in group CANTOR FITZGERALD, L. P.163,431$1.06M0.03%new13F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC118,421$770K<0.01%new13F-HRTimelineGroup
VILLERE ST DENIS J & CO LLC73,875$480K0.05%+8,61713F-HRTimeline
TUDOR INVESTMENT CORP ET AL61,596$400K<0.01%013F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP57,572$374K<0.01%+34,84413F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP53,203$346K<0.01%-19,00913F-HRTimelineGroup
ACT CAPITAL MANAGEMENT, LLC51,500$335K0.27%13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…34,706$226K<0.01%new13F-HRTimelineGroup
BERKSHIRE ASSET MANAGEMENT LLC/PA19,824$129K0.01%+2,00013F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd12,501$81.3K<0.01%-1,14113F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC11,992$77.9K<0.01%013F-HRTimelineGroup
Green Alpha Advisors, LLC11,126$72.3K0.07%new13F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/5,292$34.4K<0.01%013F-HRTimelineGroup
UBS Group AGin group UBS Group AG927$6.03K<0.01%+78613F-HRTimelineGroup
Allworth Financial LP750$4.88K<0.01%new13F-HRTimeline
Steward Partners Investment Advisory, L…200$1.3K<0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA122$1K<0.01%013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…120$780<0.01%013F-HRTimelineGroup