MGNX · Macrogenics Inc · Insider Trading

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 20, 2026.

This transaction was executed in multiple trades at prices ranging from $4.12 to $4.24. The reporting person undertakes to provide to MacroGenics, Inc., any security holder of MacroGenics, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

12.5% of the shares underlying the grant become exercisable 6 months after the date of grant and an additional 6.25% of the shares underlying the grant become exercisable on the first day of each three-month period thereafter.

The transaction represents an exercise and hold of options.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs will vest one year after the date of grant, or the day prior to the next annual meeting, if earlier

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs will vest one year after the date of grant, or the day prior to the next annual meeting, if earlier

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs will vest one year after the date of grant, or the day prior to the next annual meeting, if earlier

The option will vest and become exercisable in monthly, cumulative 1/12th increments (rounded upwards for whole shares) beginning one month from the date of grant.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs will vest one year after the date of grant, or the day prior to the next annual meeting, if earlier

The option will vest and become exercisable in monthly, cumulative 1/12th increments (rounded upwards for whole shares) beginning one month from the date of grant.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs will vest one year after the date of grant, or the day prior to the next annual meeting, if earlier

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs will vest one year after the date of grant, or the day prior to the next annual meeting, if earlier

The option will vest and become exercisable in monthly, cumulative 1/12th increments (rounded upwards for whole shares) beginning one month from the date of grant.

The option will vest and become exercisable in monthly, cumulative 1/12th increments (rounded upwards for whole shares) beginning one month from the date of grant.

The option will vest and become exercisable in monthly, cumulative 1/12th increments (rounded upwards for whole shares) beginning one month from the date of grant.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs will vest one year after the date of grant, or the day prior to the next annual meeting, if earlier

The option will vest and become exercisable in monthly, cumulative 1/12th increments (rounded upwards for whole shares) beginning one month from the date of grant.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs will vest one year after the date of grant, or the day prior to the next annual meeting, if earlier

The option will vest and become exercisable in monthly, cumulative 1/12th increments (rounded upwards for whole shares) beginning one month from the date of grant.

The option will vest and become exercisable in monthly, cumulative 1/12th increments (rounded upwards for whole shares) beginning one month from the date of grant.

The option will vest and become exercisable in monthly, cumulative 1/12th increments (rounded upwards for whole shares) beginning one month from the date of grant.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs will vest one year after the date of grant, or the day prior to the next annual meeting, if earlier

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs vested on May 18, 2026, which was one day prior to the Issuer's 2026 Annual Meeting of Stockholders held on May 19, 2026.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs vested on May 18, 2026, which was one day prior to the Issuer's 2026 Annual Meeting of Stockholders held on May 19, 2026.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs vested on May 18, 2026, which was one day prior to the Issuer's 2026 Annual Meeting of Stockholders held on May 19, 2026.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs vested on May 18, 2026, which was one day prior to the Issuer's 2026 Annual Meeting of Stockholders held on May 19, 2026.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs vested on May 18, 2026, which was one day prior to the Issuer's 2026 Annual Meeting of Stockholders held on May 19, 2026.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs vested on May 18, 2026, which was one day prior to the Issuer's 2026 Annual Meeting of Stockholders held on May 19, 2026.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs vested on May 18, 2026, which was one day prior to the Issuer's 2026 Annual Meeting of Stockholders held on May 19, 2026.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs vested on May 18, 2026, which was one day prior to the Issuer's 2026 Annual Meeting of Stockholders held on May 19, 2026.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

The RSUs vested on May 18, 2026, which was one day prior to the Issuer's 2026 Annual Meeting of Stockholders held on May 19, 2026.

Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

On February 15, 2023, the reporting person was granted 40,000 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date. Restricted stock units convert into the Company's stock on a one-for-one basis.

On February 15, 2023, the reporting person was granted 50,000 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date. Restricted stock units convert into the Company's stock on a one-for-one basis.

On February 15, 2023, the reporting person was granted 3,285 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date. Restricted stock units convert into the Company's stock on a one-for-one basis.

On February 15, 2023, the reporting person was granted 45,000 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date. Restricted stock units convert into the Company's stock on a one-for-one basis.

On February 15, 2023, the reporting person was granted 45,000 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date. Restricted stock units convert into the Company's stock on a one-for-one basis.

Owned jointly with reporting person's wife.

On February 15, 2023, the reporting person was granted 50,000 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date. Restricted stock units convert into the Company's stock on a one-for-one basis.

On February 15, 2023, the reporting person was granted 127,000 restricted stock units. Eighty-four thousand, six hundred seventy (84,670) were vested prior to the reporting person's separation from the company and 21,165 units vested upon his separation on August 13, 2025 in accordance with his Separation Agreement.

Owned jointly with reporting person's wife.