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Peters Jeffrey Stuart

Disclosed activity across 1 company

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21328
SEC CIK
0001706903

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
MACROGENICS INCMGNX · Entity 6104Senior VP, GC, and SecretaryAugust 19, 2026August 20, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

MACROGENICS INC

Report date August 19, 2026 · Filed August 20, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect0 Reported balance After 2026-08-19 transaction · row 1
1 source row

Row 1 · 2026-08-19 · Sale · Disposed 31,105 · Balance 0

F1: 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.

F2: 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.

Filing footnotes · ownership attribution and instrument terms

F1: 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.

F2: 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.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
February 22, 2023 Filed Feb 24, 2023 21:35 UTC MACROGENICS INC MGNX · Entity 6104 Tax withholdingCommon Stock 3,378 $6.55 $22,125.90
Disclosure

SEC source: 0001125345-23-000041 · wf-form4_167727448264875.xml · nonDerivative · entry 2

Peters Jeffrey Stuart · CIK 0001706903 · Senior VP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,372

Read SEC document
February 22, 2023 Filed Feb 24, 2023 21:35 UTC MACROGENICS INC MGNX · Entity 6104 Exercise / conversionCommon Stock 8,750 $0.00 $0.00
Disclosure

SEC source: 0001125345-23-000041 · wf-form4_167727448264875.xml · nonDerivative · entry 1

Peters Jeffrey Stuart · CIK 0001706903 · Senior VP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,750

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: On February 22, 2022 the reporting person was granted 35,000 restricted stock units, 25% of which vested on February 22, 2023 and 75% of which will vest two years after the date of grant. Restricted stock units convert into the Company's stock on a one-for-one basis.

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February 15, 2023 Filed Feb 17, 2023 21:29 UTC MACROGENICS INC MGNX · Entity 6104 GrantRestricted Stock Unit · Derivative 40,000 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001125345-23-000034 · wf-form4_167666936780166.xml · derivative · entry 2

Peters Jeffrey Stuart · CIK 0001706903 · Senior VP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Common Stock · 40,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

F3 · derivative.exercise_date: The RSUs will vest as to 33% of the total shares one year after the date of grant and 33% each year thereafter.

F3 · derivative.expiration_date: The RSUs will vest as to 33% of the total shares one year after the date of grant and 33% each year thereafter.

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February 15, 2023 Filed Feb 17, 2023 21:29 UTC MACROGENICS INC MGNX · Entity 6104 GrantEmployee stock option (right to buy) · Derivative 170,000 $0.00 Strike: $4.82 $0.00
Disclosure

SEC source: 0001125345-23-000034 · wf-form4_167666936780166.xml · derivative · entry 1

Peters Jeffrey Stuart · CIK 0001706903 · Senior VP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 170,000

Underlying: Common Stock · 170,000 shares

Expires 2033-02-15

F1 · derivative.exercise_date: 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.

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February 22, 2022 Filed Feb 25, 2022 00:48 UTC MACROGENICS INC MGNX · Entity 6104 GrantRestricted Stock Unit · Derivative 35,000 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001125345-22-000030 · wf-form4_164575007381460.xml · derivative · entry 2

Peters Jeffrey Stuart · CIK 0001706903 · Senior VP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,000

Underlying: Common Stock · 35,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit (RSU) represents a contingent right to receive one share of the Issuer's common stock.

F3 · derivative.exercise_date: The RSUs will vest as to 25% of the total shares one year after the date of grant and 75% two years after the date of grant.

F3 · derivative.expiration_date: The RSUs will vest as to 25% of the total shares one year after the date of grant and 75% two years after the date of grant.

Read SEC document
February 22, 2022 Filed Feb 25, 2022 00:48 UTC MACROGENICS INC MGNX · Entity 6104 GrantEmployee stock option (right to buy) · Derivative 70,000 $0.00 Strike: $10.15 $0.00
Disclosure

SEC source: 0001125345-22-000030 · wf-form4_164575007381460.xml · derivative · entry 1

Peters Jeffrey Stuart · CIK 0001706903 · Senior VP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,000

Underlying: Common Stock · 70,000 shares

Expires 2032-02-22

F1 · derivative.exercise_date: 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.

Read SEC document
March 08, 2021 Filed Mar 10, 2021 00:55 UTC MACROGENICS INC MGNX · Entity 6104 Exercise / conversionEmployee stock option (right to buy) · Derivative 21,749 $0.00 Strike: $11.50 $0.00
Disclosure

SEC source: 0001125345-21-000038 · wf-form4_161533774001831.xml · derivative · entry 3

Peters Jeffrey Stuart · CIK 0001706903 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,251

Underlying: Common Stock · 21,749 shares

Expires 2030-02-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: 12.5% of the options become exercisable 6 months after the date of grant and the remaining 87.5% shall vest in 14 substantially equal quarterly installments thereafter.

Read SEC document
March 08, 2021 Filed Mar 10, 2021 00:55 UTC MACROGENICS INC MGNX · Entity 6104 SaleCommon Stock 21,749 $26.50 $576,348.50
Disclosure

SEC source: 0001125345-21-000038 · wf-form4_161533774001831.xml · nonDerivative · entry 2

Peters Jeffrey Stuart · CIK 0001706903 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 20, 2019.

F2 · price: This transaction was executed in multiple trades at prices ranging from $26.50 to $26.63. 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.

Read SEC document
March 08, 2021 Filed Mar 10, 2021 00:55 UTC MACROGENICS INC MGNX · Entity 6104 Exercise / conversionCommon Stock 21,749 $11.50 $250,113.50
Disclosure

SEC source: 0001125345-21-000038 · wf-form4_161533774001831.xml · nonDerivative · entry 1

Peters Jeffrey Stuart · CIK 0001706903 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,749

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 22, 2021 Filed Feb 24, 2021 23:04 UTC MACROGENICS INC MGNX · Entity 6104 GrantEmployee stock option (right to buy) · Derivative 90,000 $0.00 Strike: $19.18 $0.00
Disclosure

SEC source: 0001125345-21-000027 · wf-form4_161420782742024.xml · derivative · entry 1

Peters Jeffrey Stuart · CIK 0001706903 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 90,000

Underlying: Common Stock · 90,000 shares

Expires 2031-02-22

F1 · derivative.exercise_date: 12.5% of the options become exercisable 6 months after the date of grant and the remaining 87.5% shall vest in 14 substantially equal quarterly installments thereafter.

Read SEC document
July 02, 2020 Filed Jul 6, 2020 20:25 UTC MACROGENICS INC MGNX · Entity 6104 SaleCommon Stock 202 $30.00 $6,060.00
Disclosure

SEC source: 0001125345-20-000116 · wf-form4_159406714373071.xml · nonDerivative · entry 1

Peters Jeffrey Stuart · CIK 0001706903 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 20, 2019.

Read SEC document
February 20, 2020 Filed Feb 24, 2020 21:45 UTC MACROGENICS INC MGNX · Entity 6104 GrantEmployee stock option (right to buy) · Derivative 87,000 $11.50 Strike: $11.50 $1,000,500.00
Disclosure

SEC source: 0001125345-20-000021 · wf-form4_158258071062899.xml · derivative · entry 1

Peters Jeffrey Stuart · CIK 0001706903 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,000

Underlying: Common Stock · 87,000 shares

Expires 2030-02-20

F1 · derivative.exercise_date: 12.5% of the options become exercisable 6 months after the date of grant and the remaining 87.5% shall vest in 14 substantially equal quarterly installments thereafter.

Read SEC document
February 21, 2019 Filed Feb 25, 2019 21:01 UTC MACROGENICS INC MGNX · Entity 6104 GrantEmployee stock option (right to buy) · Derivative 70,000 $0.00 Strike: $21.88 $0.00
Disclosure

SEC source: 0001125345-19-000028 · wf-form4_155112844594088.xml · derivative · entry 1

Peters Jeffrey Stuart · CIK 0001706903 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,000

Underlying: Common Stock · 70,000 shares

Expires 2029-02-21

F1 · derivative.exercise_date: 12.5% of the options become exercisable 6 months after the date of grant and the remaining 87.5% shall vest in 14 substantially equal quarterly installments thereafter.

Read SEC document
February 06, 2019 Filed Feb 8, 2019 22:40 UTC MACROGENICS INC MGNX · Entity 6104 SaleCommon Stock 68 $30.00 $2,040.00
Disclosure

SEC source: 0001125345-19-000017 · wf-form4_154966563401465.xml · nonDerivative · entry 1

Peters Jeffrey Stuart · CIK 0001706903 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 202

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 13, 2018.

Read SEC document
March 02, 2018 Filed Mar 6, 2018 22:24 UTC MACROGENICS INC MGNX · Entity 6104 GrantEmployee stock option (right to buy) · Derivative 50,000 $0.00 Strike: $28.94 $0.00
Disclosure

SEC source: 0001125345-18-000046 · wf-form4_152037507437531.xml · derivative · entry 1

Peters Jeffrey Stuart · CIK 0001706903 · Acting General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Common Stock · 50,000 shares

Expires 2028-03-02

F1 · derivative.exercise_date: 12.5% of the options become exercisable 6 months after the date of grant and the remaining 87.5% shall vest in 14 substantially equal quarterly installments thereafter.

Read SEC document
May 31, 2017 Filed Feb 12, 2018 22:17 UTC MACROGENICS INC MGNX · Entity 6104 GrantCommon Stock 270 $15.05 $4,063.50
Disclosure

SEC source: 0001125345-18-000018 · wf-form5_151847380869920.xml · nonDerivative · entry 1

Peters Jeffrey Stuart · CIK 0001706903 · Acting General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 270

F1 · kind: The reporting person is voluntarily reporting the acquisition of the issuer's common stock pursuant to the MacroGenics, Inc. Employee Stock Purchase Plan. This acquisition was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.