MGTX Insider Trading

Net Selling · 180d
Open-Market Buys (180d)
$0
0 insiders
Open-Market Sells (180d)
$459K
1 insiders
Net Insider Flow
-$459K
open market, 180d
Reporting Insiders
1
1 P/S transactions
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Build on these Form 4 transactions

The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.

Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Jun 11, 2026Yu DebraDirectorGrant(A)60K$0
Jun 11, 2026Shenk Thomas EDirectorGrant(A)70K$0
Jun 11, 2026Seligman NicoleDirectorGrant(A)60K$0
Jun 11, 2026Mendoza NeilDirectorGrant(A)67K$0
Jun 11, 2026Hukkelhoven EllenDirectorGrant(A)60K$0
Jun 11, 2026Harris Keith R.DirectorGrant(A)106K$0
Jun 10, 2026Harris Keith R.DirectorOption exercise(M)75K
Jun 10, 2026Harris Keith R.DirectorOption exercise(M)75K$0
Mar 24, 2026Forbes AlexandriaPRESIDENT & CEO, DirectorSell(S)62K$7.41$459K
Feb 21, 2026Forbes AlexandriaPRESIDENT & CEO, DirectorTax withholding(F)33K$7.45$246K
Feb 21, 2026Forbes AlexandriaPRESIDENT & CEO, DirectorOption exercise(M)63K
Feb 21, 2026Forbes AlexandriaPRESIDENT & CEO, DirectorOption exercise(M)63K$0
Feb 21, 2026Giroux RichardCFO & COOTax withholding(F)32K$7.45$236K
Feb 21, 2026Giroux RichardCFO & COOOption exercise(M)60K
Feb 21, 2026Giroux RichardCFO & COOOption exercise(M)60K$0
Feb 21, 2026Naylor StuartCHIEF DEV. OFFICERTax withholding(F)12K$7.45$88K
Feb 21, 2026Naylor StuartCHIEF DEV. OFFICEROption exercise(M)25K
Feb 21, 2026Naylor StuartCHIEF DEV. OFFICEROption exercise(M)25K$0
Feb 21, 2026Zeldin Robert KCHIEF MEDICAL OFFICEROption exercise(M)8K
Feb 21, 2026Zeldin Robert KCHIEF MEDICAL OFFICERTax withholding(F)3K$7.45$22K
Feb 21, 2026Zeldin Robert KCHIEF MEDICAL OFFICEROption exercise(M)8K$0
Feb 21, 2026Wollin Robert JGENERAL COUNSEL AND SECRETARYTax withholding(F)6K$7.45$44K
Feb 21, 2026Wollin Robert JGENERAL COUNSEL AND SECRETARYOption exercise(M)11K
Feb 21, 2026Wollin Robert JGENERAL COUNSEL AND SECRETARYOption exercise(M)11K$0
Jan 17, 2026Forbes AlexandriaPRESIDENT & CEO, DirectorOption exercise(M)310K
Jan 17, 2026Forbes AlexandriaPRESIDENT & CEO, DirectorTax withholding(F)164K$7.42$1.2M
Jan 17, 2026Forbes AlexandriaPRESIDENT & CEO, DirectorOption exercise(M)310K$0
Jan 17, 2026Giroux RichardCFO & COOOption exercise(M)310K
Jan 17, 2026Giroux RichardCFO & COOTax withholding(F)164K$7.42$1.2M
Jan 17, 2026Giroux RichardCFO & COOOption exercise(M)310K$0
Jan 17, 2026Naylor StuartCHIEF DEV. OFFICEROption exercise(M)75K
Jan 17, 2026Naylor StuartCHIEF DEV. OFFICERTax withholding(F)35K$7.42$262K
Jan 17, 2026Naylor StuartCHIEF DEV. OFFICEROption exercise(M)75K$0
Jan 17, 2026Zeldin Robert KCHIEF MEDICAL OFFICEROption exercise(M)35K
Jan 17, 2026Zeldin Robert KCHIEF MEDICAL OFFICERTax withholding(F)14K$7.42$104K
Jan 17, 2026Zeldin Robert KCHIEF MEDICAL OFFICEROption exercise(M)35K$0
Jan 17, 2026Wollin Robert JGENERAL COUNSEL AND SECRETARYOption exercise(M)50K
Jan 17, 2026Wollin Robert JGENERAL COUNSEL AND SECRETARYTax withholding(F)27K$7.42$202K
Jan 17, 2026Wollin Robert JGENERAL COUNSEL AND SECRETARYOption exercise(M)50K$0
Jan 7, 2026Forbes AlexandriaPRESIDENT & CEO, DirectorOption exercise(M)63K
Jan 7, 2026Forbes AlexandriaPRESIDENT & CEO, DirectorTax withholding(F)34K$7.73$263K
Jan 7, 2026Forbes AlexandriaPRESIDENT & CEO, DirectorOption exercise(M)63K$0
Jan 7, 2026Giroux RichardCFO & COOTax withholding(F)29K$7.73$223K
Jan 7, 2026Giroux RichardCFO & COOOption exercise(M)53K
Jan 7, 2026Giroux RichardCFO & COOOption exercise(M)53K$0
Jan 7, 2026Naylor StuartCHIEF DEV. OFFICERTax withholding(F)18K$7.73$136K
Jan 7, 2026Naylor StuartCHIEF DEV. OFFICEROption exercise(M)38K
Jan 7, 2026Naylor StuartCHIEF DEV. OFFICEROption exercise(M)38K$0
Jan 7, 2026Zeldin Robert KCHIEF MEDICAL OFFICERTax withholding(F)7K$7.73$52K
Jan 7, 2026Zeldin Robert KCHIEF MEDICAL OFFICEROption exercise(M)18K
Jan 7, 2026Zeldin Robert KCHIEF MEDICAL OFFICEROption exercise(M)18K$0
Jan 7, 2026Wollin Robert JGENERAL COUNSEL AND SECRETARYTax withholding(F)4K$7.73$34K
Jan 7, 2026Wollin Robert JGENERAL COUNSEL AND SECRETARYOption exercise(M)8K
Jan 7, 2026Wollin Robert JGENERAL COUNSEL AND SECRETARYOption exercise(M)8K$0
Dec 31, 2025Perceptive Life Sciences Master Fund LtdDirector, 10% OwnerDisposed to issuer(D)2.3M$7.91$18.2M
Dec 23, 2025Forbes AlexandriaPRESIDENT & CEO, DirectorGift(G)6K$0
Nov 20, 2025Wollin Robert JGENERAL COUNSEL AND SECRETARYGift(G)5K$0
Oct 21, 2025Giroux RichardCFO & COOSell(S)24K$8.87$213K
Oct 7, 2025Forbes AlexandriaPRESIDENT & CEO, DirectorSell(S)48K$8.39$399K
Jul 22, 2025Giroux RichardCFO & COOSell(S)24K$8.52$204K
Jul 8, 2025Forbes AlexandriaPRESIDENT & CEO, DirectorSell(S)48K$7.97$379K
Jun 30, 2025Giroux RichardCFO & COOGift(G)5K$0
Jun 12, 2025Edelman JosephDirector, 10% OwnerGrant(A)45K$0
Jun 12, 2025Harris Keith R.DirectorGrant(A)75K$0
Jun 12, 2025Hukkelhoven EllenDirectorGrant(A)45K$0
Jun 12, 2025Mendoza NeilDirectorGrant(A)45K$0
Jun 12, 2025Seligman NicoleDirectorGrant(A)45K$0
Jun 12, 2025Shenk Thomas EDirectorGrant(A)45K$0
Jun 12, 2025Yu DebraDirectorGrant(A)45K$0
Jun 6, 2025Harris Keith R.DirectorOption exercise(M)75K
Jun 6, 2025Harris Keith R.DirectorOption exercise(M)75K$0
Apr 22, 2025Giroux RichardCFO & COOSell(S)24K$6.00$144K
Apr 8, 2025Forbes AlexandriaPRESIDENT & CEO, DirectorSell(S)48K$5.34$254K
Apr 3, 2025Naylor StuartCHIEF DEV. OFFICERGrant(A)100K$0
Apr 3, 2025Wollin Robert JGENERAL COUNSEL AND SECRETARYGrant(A)100K$0
Apr 3, 2025Forbes AlexandriaPRESIDENT & CEO, DirectorGrant(A)950K$0
Apr 3, 2025Zeldin Robert KCHIEF MEDICAL OFFICERGrant(A)90K$0
Apr 3, 2025Giroux RichardCFO & COOGrant(A)950K$0
Feb 21, 2025Forbes AlexandriaPRESIDENT & CEO, DirectorOption exercise(M)125K
Feb 21, 2025Forbes AlexandriaPRESIDENT & CEO, DirectorTax withholding(F)66K$7.30$482K
Feb 21, 2025Forbes AlexandriaPRESIDENT & CEO, DirectorOption exercise(M)125K$0
Feb 21, 2025Giroux RichardCFO & COOTax withholding(F)63K$7.30$463K
Feb 21, 2025Giroux RichardCFO & COOOption exercise(M)120K
Feb 21, 2025Giroux RichardCFO & COOOption exercise(M)120K$0
Feb 21, 2025Naylor StuartCHIEF DEV. OFFICERTax withholding(F)24K$7.30$172K
Feb 21, 2025Naylor StuartCHIEF DEV. OFFICEROption exercise(M)50K
Feb 21, 2025Naylor StuartCHIEF DEV. OFFICEROption exercise(M)50K$0
Feb 21, 2025Wollin Robert JGENERAL COUNSEL AND SECRETARYOption exercise(M)23K
Feb 21, 2025Wollin Robert JGENERAL COUNSEL AND SECRETARYTax withholding(F)12K$7.30$88K
Feb 21, 2025Wollin Robert JGENERAL COUNSEL AND SECRETARYOption exercise(M)23K$0
Feb 21, 2025Zeldin Robert KCHIEF MEDICAL OFFICEROption exercise(M)15K
Feb 21, 2025Zeldin Robert KCHIEF MEDICAL OFFICERTax withholding(F)6K$7.30$43K
Feb 21, 2025Zeldin Robert KCHIEF MEDICAL OFFICEROption exercise(M)15K$0
Jan 21, 2025Giroux RichardCFO & COOSell(S)24K$6.29$151K
Jan 14, 2025Forbes AlexandriaPRESIDENT & CEO, DirectorTax withholding(F)16K$5.77$92K
Jan 14, 2025Forbes AlexandriaPRESIDENT & CEO, DirectorOption exercise(M)30K
Jan 14, 2025Forbes AlexandriaPRESIDENT & CEO, DirectorOption exercise(M)30K$0
Jan 14, 2025Giroux RichardCFO & COOTax withholding(F)13K$5.77$76K
Jan 14, 2025Giroux RichardCFO & COOOption exercise(M)25K
Jan 14, 2025Giroux RichardCFO & COOOption exercise(M)25K$0

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).