GTBP Insider Trading

GTBP · full profile →Last filing Sep 4, 2025
Mixed · 180d
Open-Market Buys (180d)
$0
0 insiders
Open-Market Sells (180d)
$0
0 insiders
Net Insider Flow
$0
open market, 180d
Reporting Insiders
0
0 P/S transactions
Build

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

48 shown
DateInsiderRoleActionSharesPriceValue
Sep 4, 2025Breen Michael MartinCEO and Director, DirectorGrant(A)100K$0
Sep 4, 2025Breen Michael MartinCEO and Director, DirectorGrant(A)100K$0
Sep 4, 2025Breen Michael MartinCEO and Director, DirectorGrant(A)100K$0
Sep 4, 2025Casamento Charles JDirectorGrant(A)63K$0
Sep 4, 2025Kramer HilaryDirectorGrant(A)31K$0
Sep 4, 2025Mun-Gavin David C.DirectorGrant(A)31K$0
Sep 4, 2025Urban Alan LouisChief Financial OfficerGrant(A)50K$0
Sep 4, 2025Urban Alan LouisChief Financial OfficerGrant(A)50K$0
Oct 17, 2024Urban Alan LouisChief Financial OfficerGrant(A)23K$0
Aug 11, 2023Ohri ManuCFO & SecretaryOther(J)200K$0.29$58K
Aug 11, 2023Ohri ManuCFO & SecretaryOther(J)200K$0.29$58K
Aug 11, 2023Ohri ManuCFO & SecretaryGrant(A)200K$0.29$58K
Aug 11, 2023Breen Michael MartinExecutive Chairman/Interim CEO, DirectorGrant(A)200K$0.29$58K
Jun 16, 2023Casamento Charles JDirectorGrant(A)500K$0
Apr 11, 2023Breen Michael MartinExecutive Chairman/Interim CEO, DirectorBuy(P)50K$0.50$25K
Apr 6, 2023Ohri ManuCFO & SecretaryBuy(P)50K$0.50$25K
Jan 27, 2023Wendel BruceDirectorGrant(A)500K$0
Jan 27, 2023Shrotriya Rajesh C MDDirectorGrant(A)500K$0
Jan 27, 2023Ohri ManuChief Financial OfficerGrant(A)500K$0
Jan 27, 2023Breen Michael MartinExec Chairman and Interim CEO, DirectorGrant(A)500K$0
Jul 15, 2022Wendel BruceDirectorGrant(A)50K$0
Jul 15, 2022Wendel BruceDirectorGrant(A)50K$0
Jul 15, 2022Ohri ManuCFO & SecretaryGrant(A)100K$0
Jul 15, 2022Ohri ManuCFO & SecretaryOther(J)100K$0
Jul 15, 2022Ohri ManuCFO & SecretaryOther(J)100K$0
Jul 15, 2022Ohri ManuCFO & SecretaryGrant(A)200K$0
Jul 15, 2022Berk GregoryPres. of R&D, CMOGrant(A)50K$0
Jul 15, 2022Urban Alan LouisDirectorGrant(A)50K$0
Jul 15, 2022Shrotriya Rajesh C MDDirectorGrant(A)50K$0
Jul 15, 2022Shrotriya Rajesh C MDDirectorGrant(A)361K$0
Jul 15, 2022Shrotriya Rajesh C MDDirectorGrant(A)50K$0
Jul 15, 2022Breen Michael MartinExec. Chair. and Interim CEO, DirectorGrant(A)278K$0
Jul 15, 2022Breen Michael MartinExec. Chair. and Interim CEO, DirectorGrant(A)50K$0
Dec 31, 2021Choy GavinActing Chief Financial OfficerGrant(A)228K$0
Feb 25, 2021Breen Michael MartinDirectorConversion(C)10K$3.40$34K
Feb 25, 2021Breen Michael MartinDirectorConversion(C)40K$3.40$137K
Feb 25, 2021Breen Michael MartinDirectorConversion(C)30K$0
Feb 25, 2021Breen Michael MartinDirectorConversion(C)100K$0
Feb 16, 2021Shrotriya Rajesh C MDDirectorGrant(A)50K$0
Feb 16, 2021Berk GregoryDirectorGrant(A)278K$0
Feb 16, 2021Berk GregoryDirectorGrant(A)50K$0
Feb 16, 2021Wendel BruceDirectorGrant(A)348K$0
Feb 16, 2021Wendel BruceDirectorGrant(A)50K$0
Feb 16, 2021Breen Michael MartinDirectorGrant(A)278K$0
Feb 16, 2021Breen Michael MartinDirectorGrant(A)50K$0
Dec 22, 2020Wendel BruceDirectorBuy(P)441$8.73$4K
Dec 22, 2020Wendel BruceDirectorBuy(P)1K$8.87$12K
Nov 16, 2020Wendel BruceDirectorBuy(P)3K$3.14$10K

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.

Coverage: Form 4 filings indexed 2021-03-292026-07-14. Earlier history is backfilling; this window widens as it deepens.

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