Alpha Cognition ACOG Insider Ownership

Updated Nov 4, 2026

Across the past 12 months, open-market trades by Alpha Cognition insiders were all purchases, totaling $8.35 million (1.21Mn shares).

• Behind Alpha Cognition's open-market purchases in the past 12 months were 3 insiders, and no insider sold.
• Among Alpha Cognition insiders, Opaleye Management Inc. (10% owner) led open-market buying over the past 12 months with $8.23 million of purchases (1.2Mn shares); the latest was on October 23, 2026.
• Beyond open-market trades, insiders at Alpha Cognition received 361.05K shares in stock awards in the last 12 months.
• Business Quant data shows Alpha Cognition insiders holding 4.49Mn shares in total in their latest Form 4 filings, up 12.74% from 3.98Mn shares at the end of Q2 2026.
• Indirect holdings, through trusts, partnerships, family members and other entities, make up 78.64% (3.53Mn shares) of Alpha Cognition's insider total, with the other 21.36% (958.29K shares) held directly.
• ACOG's insider total is spread across 11 insiders who have filed a Form 4 in the past two years.
• Alpha Cognition's top three insider holders by shares held are Opaleye Management Inc. (10% owner, 3.39Mn shares), John Prentiss Havens (Director, 273.27K shares) and Leonard Powell Mertz (Director, 267.24K shares).
• The holding of Opaleye Management Inc. makes up 75.61% of all shares held by Alpha Cognition insiders.
• Institutional holders reported 48.08% of Alpha Cognition's outstanding shares for Q2 2026; insiders' latest Form 4 filings put their stake at about 20.60%, and other investors, including the public, hold the remaining 31.32%.
• In the past year, 10 insiders of Alpha Cognition submitted 36 Form 4 filings reporting trades, awards or other transactions.
• Insider figures for ACOG include Form 4 filings through October 26, 2026.