Form4insider filings, from the source

Company · CIK 0001125345 · SIC 2834 — Pharmaceutical Preparations · Nasdaq

MACROGENICS INC · MGNX

Insider activity reported against this company. All insider holders · Files at: PRVB. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market activity at this companybuys $0 · 0sales $129k · 1net −$129k
$10k$10k$100k$100k$1M$1MbuyssalesSep 2025Nov 2025Jan 2026Mar 2026May 2026Jul 2026Sep 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 19, 2026 SForm 4 →Aug 20, 6:19 pm EDTJeffrey Stuart PetersSenior VP, GC, and Secretary31,105$4.15$129,0860−100%10b5-1
Aug 17, 2026 MForm 4 →Aug 18, 4:19 pm EDTEzio BonviniSr VP, Research & CSO40,000$2.60$104,000185,799—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 17, 2026 MForm 4 →Aug 18, 4:19 pm EDTEzio BonviniSr VP, Research & CSO40,000$2.60$104,00088,000—

Filed by this entity as an insider elsewhere — common stock

No reported common-stock activity in this period.

Filed by this entity as an insider elsewhere — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.