MetaCap

MacroGenics Insider Trades

NASDAQ: MGNXHealth CareBiotechnology: Pharmaceutical PreparationsUSD

3.74+0.19 (+5.35%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Last 12 months

Purchases
0 · $0
Sales
1 · $129.09K
Shares bought / sold
0 / 31.11K
Net activity
Net selling $129,086

MacroGenics insider activity

Over the last 12 months, MacroGenics insiders reported 50 transactions on SEC Form 4: 0 open-market purchases and 1 sale. Insiders bought $0 and sold $129,086 worth of stock, for net insider selling of $129,086. The largest seller was Peters Jeffrey Stuart, with $129,086 in reported sales.

The most recent filing shows Bonvini Ezio (Sr VP, Research & CSO) reporting a transaction in 8,000 shares at $2.60 on Oct 6, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put MGNX's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

MGNX insider transactions

MacroGenics insider transactions
DateInsiderTypeSharesValueFiling
Oct 6, 2026Bonvini EzioSr VP, Research & CSOOption exercise8,000$20.80KForm 4
Aug 19, 2026Peters Jeffrey StuartSenior VP, GC, and SecretarySale31,105$129.09KForm 4
Aug 17, 2026Bonvini EzioSr VP, Research & CSOOption exercise40,000$104.00KForm 4
May 18, 2026Ferrante Karen JeanDirectorOption exercise3,750—Form 4
May 18, 2026STUMP DAVID CDirectorOption exercise3,750—Form 4
May 18, 2026Liu MargaretDirectorOption exercise3,750—Form 4
May 18, 2026HEIDEN WILLIAM KDirectorOption exercise3,750—Form 4
May 18, 2026O'Brien Federica F.DirectorOption exercise3,750—Form 4
May 18, 2026HURWITZ EDWARDDirectorOption exercise3,750—Form 4
May 18, 2026Chhabra MeenuDirectorOption exercise3,750—Form 4
May 18, 2026SIEGEL JAY PHILIPDirectorOption exercise3,750—Form 4
May 18, 2026Jackson Scott ThomasDirectorOption exercise3,750—Form 4
Feb 15, 2026Koenig ScottDirectorOption exercise21,165—Form 4
Feb 15, 2026Spitznagel ThomasSr VP, Technical OpsTax withholding5,520$9.44KForm 4
Feb 15, 2026Spitznagel ThomasSr VP, Technical OpsOption exercise13,332—Form 4
Feb 15, 2026Karrels JamesSVP and CFOTax withholding5,790$9.90KForm 4
Feb 15, 2026Karrels JamesSVP and CFOOption exercise14,999—Form 4
Feb 15, 2026Risser Eric BlasiusPresident and CEOTax withholding6,433$11.00KForm 4
Feb 15, 2026Risser Eric BlasiusPresident and CEOOption exercise16,665—Form 4
Feb 15, 2026Smith Beth AnnVP, Controller & TreasurerTax withholding423$723.33Form 4
Feb 15, 2026Smith Beth AnnVP, Controller & TreasurerOption exercise1,095—Form 4
Feb 15, 2026Bonvini EzioSr VP, Research & CSOTax withholding6,433$11.00KForm 4
Feb 15, 2026Bonvini EzioSr VP, Research & CSOOption exercise16,665—Form 4
Feb 15, 2026Peters Jeffrey StuartSenior VP, GC, and SecretaryTax withholding5,147$8.80KForm 4
Feb 15, 2026Peters Jeffrey StuartSenior VP, GC, and SecretaryOption exercise13,332—Form 4
Feb 8, 2026Spitznagel ThomasSr VP, Technical OpsTax withholding3,186$5.77KForm 4
Feb 8, 2026Spitznagel ThomasSr VP, Technical OpsOption exercise8,999—Form 4
Feb 8, 2026Bonvini EzioSr VP, Research & CSOTax withholding4,311$7.80KForm 4
Feb 8, 2026Bonvini EzioSr VP, Research & CSOOption exercise11,166—Form 4
Feb 8, 2026Karrels JamesSVP and CFOTax withholding3,860$6.99KForm 4
Feb 8, 2026Karrels JamesSVP and CFOOption exercise9,999—Form 4
Feb 8, 2026Peters Jeffrey StuartSenior VP, GC, and SecretaryTax withholding3,474$6.29KForm 4
Feb 8, 2026Peters Jeffrey StuartSenior VP, GC, and SecretaryOption exercise8,999—Form 4
Feb 8, 2026Risser Eric BlasiusPresident and CEOTax withholding4,311$7.80KForm 4
Feb 8, 2026Risser Eric BlasiusPresident and CEOOption exercise11,166—Form 4
Feb 8, 2026Smith Beth AnnVP, Controller & TreasurerTax withholding612$1.11KForm 4
Feb 8, 2026Smith Beth AnnVP, Controller & TreasurerOption exercise1,583—Form 4
Feb 8, 2026Koenig ScottDirectorOption exercise15,831—Form 4
Feb 7, 2026Spitznagel ThomasSr VP, Technical OpsTax withholding2,485$4.50KForm 4
Feb 7, 2026Spitznagel ThomasSr VP, Technical OpsOption exercise6,001—Form 4
Feb 7, 2026Bonvini EzioSr VP, Research & CSOTax withholding2,703$4.89KForm 4
Feb 7, 2026Bonvini EzioSr VP, Research & CSOOption exercise7,001—Form 4
Feb 7, 2026Karrels JamesSVP and CFOTax withholding2,446$4.43KForm 4
Feb 7, 2026Karrels JamesSVP and CFOOption exercise6,334—Form 4
Feb 7, 2026Peters Jeffrey StuartSenior VP, GC, and SecretaryTax withholding2,317$4.19KForm 4
Feb 7, 2026Peters Jeffrey StuartSenior VP, GC, and SecretaryOption exercise6,001—Form 4
Feb 7, 2026Risser Eric BlasiusPresident and CEOTax withholding2,575$4.66KForm 4
Feb 7, 2026Risser Eric BlasiusPresident and CEOOption exercise6,668—Form 4
Feb 7, 2026Smith Beth AnnVP, Controller & TreasurerTax withholding1,011$1.83KForm 4
Feb 7, 2026Smith Beth AnnVP, Controller & TreasurerOption exercise2,617—Form 4
Aug 20, 2025HEIDEN WILLIAM KDirectorBuy49,500$73.75KForm 4
Aug 19, 2025HEIDEN WILLIAM KDirectorBuy50,500$76.76KForm 4
Aug 13, 2025Koenig ScottDirectorOption exercise31,664—Form 4
Aug 13, 2025Koenig ScottDirectorOption exercise21,165—Form 4
May 20, 2025HURWITZ EDWARDDirectorOption exercise6,500—Form 4
May 20, 2025Liu MargaretDirectorOption exercise6,500—Form 4
May 20, 2025Ferrante Karen JeanDirectorOption exercise6,500—Form 4
May 20, 2025STUMP DAVID CDirectorOption exercise6,500—Form 4
May 20, 2025HEIDEN WILLIAM KDirectorOption exercise6,500—Form 4
May 20, 2025O'Brien Federica F.DirectorOption exercise6,500—Form 4
May 20, 2025Jackson Scott ThomasDirectorOption exercise6,500—Form 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

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