CATALYST PHARMACEUTICALS, INC. 4 SEC Filings

Returned 242,501 shares to the issuer ($7.64M) · Disposed of 908,977 Options to purchase common stock (Disposition to Issuer) · Disposed of 47,165 Restricted Stock Units (Disposition to Issuer)

Disposed of 58,115 Options to purchase common stock (Disposition to Issuer) · Disposed of 5,468 Restricted Stock Units (Disposition to Issuer)

Returned 383,314 shares to the issuer ($12.1M) · Disposed of 169,387 Options to purchase common stock (Disposition to Issuer) · Disposed of 8,776 Restricted Stock Units (Disposition to Issuer)

Returned 1,093,803 shares to the issuer ($34.5M) · Disposed of 1,395,416 Options to purchase common stock (Disposition to Issuer) · Disposed of 76,233 Restricted Stock Units (Disposition to Issuer)

Returned 3,773 shares to the issuer ($119K) · Disposed of 110,887 Options to purchase common stock (Disposition to Issuer) · Disposed of 8,776 Restricted Stock Units (Disposition to Issuer)

Returned 476 shares to the issuer ($15K) · Disposed of 62,837 Options to purchase common stock (Disposition to Issuer) · Disposed of 8,949 Restricted Stock Units (Disposition to Issuer)

Returned 4,171,559 shares to the issuer ($131M) · Disposed of 1,834,322 Options to purchase common stock (Disposition to Issuer) · Disposed of 17,626 Restricted Stock Units (Disposition to Issuer)

Returned 498,773 shares to the issuer ($15.7M) · Disposed of 169,387 Options to purchase common stock (Disposition to Issuer) · Disposed of 8,776 Restricted Stock Units (Disposition to Issuer)

Returned 14,337 shares to the issuer ($452K) · Disposed of 985,344 Options to purchase common stock (Disposition to Issuer) · Disposed of 51,502 Restricted Stock Units (Disposition to Issuer)

Returned 54,804 shares to the issuer ($1.73M) · Disposed of 748,119 Options to purchase common stock (Disposition to Issuer) · Disposed of 50,318 Restricted Stock Units (Disposition to Issuer)

Returned 271,266 shares to the issuer ($8.54M) · Disposed of 2,336,927 Options to purchase common stock (Disposition to Issuer) · Disposed of 281,612 Restricted Stock Units (Disposition to Issuer)

Returned 2,309 shares to the issuer ($72.7K) · Disposed of 223,099 Options to purchase common stock (Disposition to Issuer) · Disposed of 41,985 Restricted Stock Units (Disposition to Issuer)

Returned 3,694 shares to the issuer ($116K) · Disposed of 118,387 Options to purchase common stock (Disposition to Issuer) · Disposed of 8,776 Restricted Stock Units (Disposition to Issuer)

Returned 13,665 shares to the issuer ($430K) · Disposed of 557,998 Options to purchase common stock (Disposition to Issuer) · Disposed of 74,905 Restricted Stock Units (Disposition to Issuer)

Exercised 3,052 Restricted Stock Units · Received 3,052 shares by exercise or conversion · Gave up 743 shares to cover exercise price or tax

Received 687 shares by exercise or conversion · Gave up 211 shares to cover exercise price or tax

Received 7,139 shares by exercise or conversion · Gave up 2,080 shares to cover exercise price or tax

Received 42,105 shares by exercise or conversion · Gave up 10,577 shares to cover exercise price or tax

Received 6,667 shares by exercise or conversion · Gave up 2,623 shares to cover exercise price or tax

Received 1,334 shares by exercise or conversion