$ERNA 4 SEC Filings

Granted 13,403 Stock Option (Right to buy)

Granted 11,026 Stock Option (Right to buy)

Granted 5,083 Stock Option (Right to buy)

Granted 5,943 Stock Option (Right to buy)

Granted 5,944 Stock Option (Right to buy)

Granted 118,848 Stock Option (right to buy)

Bought 4,000,000 shares ($2M) · Acquired 4,000,000 Warrants to Purchase Common Stock (Open Market Purchase)

Received 30 shares by exercise or conversion · Acquired 30 Restricted Stock Units (Option Exercise/Conversion)

Bought 21,241,163 shares ($2.22M)

Bought 3,768,397 shares ($394K)

Granted 124,533 Stock Option (right to buy)

Granted 150,000 Stock Option (Right to buy)

Granted 72,074 Stock Option (Right to buy)

Granted 51,485 Stock Option (Right to buy)

Granted 1,123,350 Stock Option (right to buy)

Granted 140,078 Stock Option (Right to buy)

Acquired 0 6.0% Senior Convertible Promissory Notes due 2028 (Open Market Purchase) · Acquired 167,832 Warrants (right to buy) (Open Market Purchase) · Acquired 0 12.0% Senior Convertible Notes due September 24, 2025 (Open Market Purchase) · 5 more

Received 437 shares by exercise or conversion · Gave up 180 shares to cover exercise price or tax ($349)

Granted 88,946 Stock Option (Right to buy)

Granted 80,000 Stock Option (Right to buy)