Schedule 13G filing

MANCHESTER MANAGEMENT CO LLC disclosed a 7.4% stake in Alpha Cognition Inc. (ACOG)

Schedule 13G · Filed Sep 23, 2026

MANCHESTER MANAGEMENT CO LLC reported owning 7.4% of Alpha Cognition Inc. (ACOG) (1,639,255 shares) in a Schedule 13G filed Sep 23, 2026.

A 13G is a passive stake: the holder does not plan to push for changes.

Stake

Alpha Cognition Inc.

Stake

7.4% stake

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From a public Schedule 13G, linked above. Not investment advice, and not a recommendation to buy or sell.