#1 The restricted stock units were awarded to the Reporting Person for no cash or other similar consideration.

#2 Represents the number of shares required to be withheld in accordance with Rule 16b-3 to cover the Reporting Person's tax withholding obligations in connection with the vesting of the restricted stock units reported herein.

#1 On March 23, 2021, the Reporting Person was granted 130,000 restricted stock units (RSUs), vesting in four equal annual installments beginning on the first anniversary of the grant date, which grant was previously reported on a Form 4, Table I. The Reporting Person vested in 32,500 shares on March 23, 2024 from this RSU award. The number of shares reported here represents the number of shares required to be withheld in accordance with Rule 16b-3 to cover the Reporting Person's tax withholding obligation in connection with the vesting of the RSUs on March 23, 2024.

#2 On March 23, 2023, the reporting person was granted 217,100 restricted stock units (RSUs), vesting in four equal annual installments beginning on the first anniversary of the grant date, which grant was previously reported on a Form 4, Table I. The reporting person vested in 54,275 shares on March 23, 2024 from this RSU award. The number of shares reported here represents the number of shares required to be withheld in accordance with Rule 16b-3 to cover the reporting person's tax withholding obligation in connection with the vesting of the RSUs on March 23, 2024.

#1 On March 23, 2021, the Reporting Person was granted 130,000 restricted stock units (RSUs), vesting in four equal annual installments beginning on the first anniversary of the grant date, which grant was previously reported on a Form 4, Table I. The Reporting Person vested in 32,500 shares on March 23, 2024 from this RSU award. The number of shares reported here represents the number of shares required to be withheld in accordance with Rule 16b-3 to cover the Reporting Person's tax withholding obligation in connection with the vesting of the RSUs on March 23, 2024.

#2 On March 23, 2023, the reporting person was granted 217,100 restricted stock units (RSUs), vesting in four equal annual installments beginning on the first anniversary of the grant date, which grant was previously reported on a Form 4, Table I. The reporting person vested in 54,275 shares on March 23, 2024 from this RSU award. The number of shares reported here represents the number of shares required to be withheld in accordance with Rule 16b-3 to cover the reporting person's tax withholding obligation in connection with the vesting of the RSUs on March 23, 2024.

#1 Each restricted stock unit (RSU) represents a contingent right to receive one share of EMCORE common stock. The RSUs were issued pursuant to the Amended and Restated EMCORE Corporation 2019 Equity Incentive Plan. The RSUs vest as to 1/4 of the underlying shares on each of the first four anniversaries of the grant date, subject to the Reporting Person's continued service with the Issuer through the applicable vesting date.

#2 On April 27, 2022, the Reporting Person filed a Form 4 which inadvertently reported that he directly owned 400,134 shares of Common Stock. The Reporting Person directly owned 466,800 shares of Common Stock following the transactions reported on such Form 4.

#3 On March 23, 2021, the Reporting Person was granted 130,000 RSUs, vesting in four equal annual installments beginning on the first anniversary of the grant date, which grant was previously reported on a Form 4, Table I. The Reporting Person vested in 32,500 shares on March 23, 2023 from this RSU award. The number of shares reported here represents the number of shares required to be withheld in accordance with Rule 16b-3 to cover the Reporting Person's tax withholding obligation in connection with the vesting of the RSUs on March 23, 2023.