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Alpha Cognition (ACOG) Amendment: Besser 4.9%; Manchester entities 4.2% each

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
SCHEDULE 13G/A

Rhea-AI Filing Summary

Alpha Cognition Inc. files Amendment No. 1 to a Schedule 13G/A reporting beneficial ownership stakes held by affiliated entities and individuals. The filing lists Manchester Management Company, LLC with 919,935 shares (4.2%), Manchester Management PR, LLC with 919,935 shares (4.2%), James E. Besser with 1,076,935 shares (4.9%), and Morgan C. Frank with 888,935 shares (4.0%).

The filing states that all reported securities are directly owned by advisory clients of Manchester Management PR, LLC and includes a Joint Filing Agreement. The signatures are dated 05/12/2026.

Positive

  • None.

Negative

  • None.

Insights

Concentrated advisory holdings reported across two affiliated managers and two principals.

The filing shows shared voting and dispositive power for Manchester Management entities over 919,935 shares each, and larger aggregate positions for the named individuals. These positions are below 5% for each listed entity or person, per the percentages disclosed.

Implications depend on advisor-client relationships: the filing notes the shares are owned by advisory clients of Manchester Management PR, LLC. Future filings could clarify whether these holdings are aggregated for reporting or represent distinct client accounts.

Amendment corrects or updates beneficial-ownership disclosure under Section 13 rules.

The Schedule 13G/A format and the attached Joint Filing Agreement indicate coordinated reporting by related filers. The exhibit structure and signatures dated 05/12/2026 comply with joint-filing conventions for passive/beneficial owners.

Key dependency is the advisory-client ownership statement; any change in investment or voting arrangements would require subsequent amendments in accordance with reporting thresholds.

James E. Besser holdings 1,076,935 shares beneficially owned; <date>as reported in Amendment No. 1</date>
Manchester Management Company holdings 919,935 shares beneficially owned (4.2%)
Manchester Management PR holdings 919,935 shares beneficially owned (4.2%)
Morgan C. Frank holdings 888,935 shares beneficially owned (4.0%)
Schedule 13G/A regulatory
"Amendment No. 1 to Schedule 13G/A reporting beneficial ownership"
A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.
Shared Voting Power corporate
"Shared Voting Power 919,935.00 reported for Manchester entities"
Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.
Beneficially owned regulatory
"Amount beneficially owned: Manchester Management Company, LLC - 919,935"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.





02074J501

(CUSIP Number)
03/31/2026

(Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)




schemaVersion:


SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G



Manchester Management Company, LLC
Signature:/s/ James E. Besser
Name/Title:James E. Besser, Managing Member
Date:05/12/2026
Manchester Management PR, LLC
Signature:/s/ James E. Besser
Name/Title:James E. Besser, Managing Member
Date:05/12/2026
James E. Besser
Signature:/s/ James E. Besser
Name/Title:James E. Besser
Date:05/12/2026
Morgan C. Frank
Signature:/s/ Morgan C. Frank
Name/Title:Morgan C. Frank
Date:05/12/2026
Exhibit Information

Exhibit A - Joint Filing Agreement

FAQ

What ownership stakes does ACOG report in this Schedule 13G/A amendment?

The filing reports Manchester Management Company, LLC and Manchester Management PR, LLC each hold 919,935 shares (4.2%). It also lists James E. Besser with 1,076,935 shares (4.9%) and Morgan C. Frank with 888,935 shares (4.0%).

Who signed the Amendment No. 1 for Alpha Cognition (ACOG)?

The amendment is signed by James E. Besser (as Managing Member) and Morgan C. Frank, with signature dates shown as 05/12/2026. The filing includes a Joint Filing Agreement as an exhibit.

Are the reported shares owned directly or on behalf of others for ACOG?

The filing states all reported securities are directly owned by advisory clients of Manchester Management PR, LLC. The filing clarifies that none of those advisory clients are deemed to beneficially own more than 5% of the class.

What voting and dispositive powers are reported for these ACOG holdings?

Manchester entities report 0 sole voting and dispositive power and 919,935 shared voting and dispositive power. Mr. Besser reports 157,000 sole voting/dispositive and 919,935 shared; Mr. Frank reports 45,000 sole and 843,935 shared.

Does this Schedule 13G/A indicate any filer exceeds 5% ownership of ACOG?

No listed filer exceeds 5%: the largest reported percentage is 4.9% (James E. Besser), with other reported percentages at 4.2% and 4.0%, as stated in the amendment.