Understand Stock

$GRTX

$0.10 +$0.00 (0.0%)

Deep Research with AI Research

Overview

$GRTX Overview Financials SEC Filings Executives News

Specialized Tools

Valuations P Insider Transactions P Congressional Trades P

Insider Transactions

Insider Transaction Summary

Yair Schneid

10,723,710 shares

Net: 0 B/S: -

NANCY T CHANG

8,825,543 shares

Net: +1,180,611 B/S: ∞

MICHAEL R. FRIEDMAN

5,336,870 shares

Net: +5,336,870 B/S: ∞

Enterprise Associates 14, L.P. New

4,358,047 shares

Net: 0 B/S: -

AG NOVARTIS

3,506,791 shares

Net: 0 B/S: -

Venture Partners IX, L.P. Sofinnova

3,083,712 shares

Net: 0 B/S: -

Bioventures Ltd Novartis

2,467,961 shares

Net: 0 B/S: -

Holdings A/S Novo

2,459,021 shares

Net: 0 B/S: -

Joel F. Sussman

2,000,000 shares

Net: 0 B/S: -

Mark E. Pearson

1,080,000 shares

Net: 0 B/S: -

Clarus GP L.P. Blackstone

542,555 shares

Net: 0 B/S: -

IV-A, L.P. Clarus

461,769 shares

Net: 0 B/S: -

Mel Sorensen

195,029 shares

Net: -70,000 B/S: -

Jennifer Evans Stacey

135,000 shares

Net: 0 B/S: -

Robert A Beardsley

135,000 shares

Net: 0 B/S: -

JON T HOLMLUND

75,000 shares

Net: 0 B/S: -

Arthur Fratamico

75,000 shares

Net: 0 B/S: -

Dennis Riley

74,435 shares

Net: 0 B/S: -

MICHAEL POWELL

64,000 shares

Net: 0 B/S: -

Eugene P. Kennedy

55,000 shares

Net: 0 B/S: -

KEVIN G LOKAY

48,000 shares

Net: 0 B/S: -

Lawrence M Alleva

48,000 shares

Net: 0 B/S: -

Linda West

23,382 shares

Net: 0 B/S: -

Jason Fuller

19,776 shares

Net: 0 B/S: -

Mark Bachleda

11,000 shares

Net: 0 B/S: -

Chris Degnan

10,000 shares

Net: 0 B/S: -

Emmett Cunningham

0 shares

Net: 0 B/S: -

Group Inc Blackstone

0 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
Yair Schneid	10,723,710	0	-
NANCY T CHANG	8,825,543	+1,180,611	∞
MICHAEL R. FRIEDMAN	5,336,870	+5,336,870	∞
Enterprise Associates 14, L.P. New	4,358,047	0	-
AG NOVARTIS	3,506,791	0	-
Venture Partners IX, L.P. Sofinnova	3,083,712	0	-
Bioventures Ltd Novartis	2,467,961	0	-
Holdings A/S Novo	2,459,021	0	-
Joel F. Sussman	2,000,000	0	-
Mark E. Pearson	1,080,000	0	-
Clarus GP L.P. Blackstone	542,555	0	-
IV-A, L.P. Clarus	461,769	0	-
Mel Sorensen	195,029	-70,000	-
Jennifer Evans Stacey	135,000	0	-
Robert A Beardsley	135,000	0	-
JON T HOLMLUND	75,000	0	-
Arthur Fratamico	75,000	0	-
Dennis Riley	74,435	0	-
MICHAEL POWELL	64,000	0	-
Eugene P. Kennedy	55,000	0	-
KEVIN G LOKAY	48,000	0	-
Lawrence M Alleva	48,000	0	-
Linda West	23,382	0	-
Jason Fuller	19,776	0	-
Mark Bachleda	11,000	0	-
Chris Degnan	10,000	0	-
Emmett Cunningham	0	0	-
Group Inc Blackstone	0	0	-

Individual Transactions

April 07, 2026

NANCY T CHANG

Derivative Conversion

Change: +1,180,611

Price: $0.00

Shares: 8,825,543

Value: +$0

MICHAEL R. FRIEDMAN

Derivative Conversion

Change: +5,336,870

Price: $0.00

Shares: 5,336,870

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
NANCY T CHANG	Apr 09	Derivative Conversion (C) Derivative Exercise	8,825,543	+1,180,611	$0.00	+$0
MICHAEL R. FRIEDMAN	Apr 09	Derivative Conversion (C) Derivative Exercise	5,336,870	+5,336,870	$0.00	+$0

November 20, 2025

Mel Sorensen

Open Market Sale

Change: -70,000

Price: $0.02

Shares: 195,029

Value: -$1,407

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Mel Sorensen	Nov 24	Open Market Sale (S) Market Sale	195,029	-70,000	$0.02	-$1,407

May 01, 2025

Joel F. Sussman

Grant/Award Acquisition

Change: +2,000,000

Price: $0.00

Shares: 2,000,000

Value: +$0

Mel Sorensen

Grant/Award Acquisition

Change: +6,000,000

Price: $0.00

Shares: 6,000,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Joel F. Sussman	May 05	Grant/Award Acquisition (A) Compensation/Award	2,000,000	+2,000,000	$0.00	+$0
Mel Sorensen	May 05	Grant/Award Acquisition (A) Compensation/Award	6,000,000	+6,000,000	$0.00	+$0

February 24, 2025

MICHAEL R. FRIEDMAN

Grant/Award Acquisition

Change: +96,000

Price: $0.00

Shares: 96,000

Value: +$0

Lawrence M Alleva

Grant/Award Acquisition

Change: +48,000

Price: $0.00

Shares: 48,000

Value: +$0

KEVIN G LOKAY

Grant/Award Acquisition

Change: +48,000

Price: $0.00

Shares: 48,000

Value: +$0

NANCY T CHANG

Grant/Award Acquisition

Change: +96,000

Price: $0.00

Shares: 96,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
MICHAEL R. FRIEDMAN	Feb 26	Grant/Award Acquisition (A) Compensation/Award	96,000	+96,000	$0.00	+$0
Lawrence M Alleva	Feb 26	Grant/Award Acquisition (A) Compensation/Award	48,000	+48,000	$0.00	+$0
KEVIN G LOKAY	Feb 26	Grant/Award Acquisition (A) Compensation/Award	48,000	+48,000	$0.00	+$0
NANCY T CHANG	Feb 26	Grant/Award Acquisition (A) Compensation/Award	96,000	+96,000	$0.00	+$0

December 30, 2024

MICHAEL R. FRIEDMAN

Grant/Award Acquisition

Change: +8,326

Price: $0.00

Shares: 8,326

Value: +$0

NANCY T CHANG

Grant/Award Acquisition

Change: +1,842

Price: $0.00

Shares: 1,842

Value: +$0

NANCY T CHANG

Open Market Purchase

Change: +7,644,932

Price: $0.07

Shares: 7,644,932

Value: +$499,978

Insider	Filing Date	Transaction	Shares	Change	Price	Value
MICHAEL R. FRIEDMAN	Jan 02	Grant/Award Acquisition (A) Compensation/Award	8,326	+8,326	$0.00	+$0
NANCY T CHANG	Jan 02	Grant/Award Acquisition (A) Compensation/Award	1,842	+1,842	$0.00	+$0
NANCY T CHANG	Jan 02	Open Market Purchase (P) Market Purchase	7,644,932	+7,644,932	$0.07	+$499,978

August 16, 2024

Mel Sorensen

Open Market Sale

Change: -67,015

Price: $0.07

Shares: 265,029

Value: -$4,825

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Mel Sorensen	Aug 20	Open Market Sale (S) Market Sale	265,029	-67,015	$0.07	-$4,825

April 19, 2024

Yair Schneid

Open Market Purchase

Change: +100

Price: $0.19

Shares: 10,723,710

Value: +$18

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Yair Schneid	May 01	Open Market Purchase (P) Market Purchase	10,723,710	+100	$0.19	+$18

April 18, 2024

Yair Schneid

Open Market Purchase

Change: +17,211

Price: $0.19

Shares: 10,193,221

Value: +$3,184

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Yair Schneid	May 01	Open Market Purchase (P) Market Purchase	10,193,221	+17,211	$0.19	+$3,184

April 17, 2024

Yair Schneid

Open Market Purchase

Change: +100,000

Price: $0.19

Shares: 8,461,353

Value: +$19,100

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Yair Schneid	May 01	Open Market Purchase (P) Market Purchase	8,461,353	+100,000	$0.19	+$19,100

March 28, 2024

Mark E. Pearson

Open Market Sale

Change: -693,076

Price: $0.15

Shares: 1,080,000

Value: -$101,119

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Mark E. Pearson	Apr 01	Open Market Sale (S) Market Sale	1,080,000	-693,076	$0.15	-$101,119

March 27, 2024

Mark E. Pearson

Open Market Sale

Change: -306,924

Price: $0.17

Shares: 1,773,076

Value: -$52,146

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Mark E. Pearson	Apr 01	Open Market Sale (S) Market Sale	1,773,076	-306,924	$0.17	-$52,146

March 26, 2024

Mark E. Pearson

Open Market Sale

Change: -2,000,000

Price: $0.20

Shares: 2,080,000

Value: -$393,000

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Mark E. Pearson	Apr 01	Open Market Sale (S) Market Sale	2,080,000	-2,000,000	$0.20	-$393,000

March 25, 2024

Mark E. Pearson

Open Market Sale

Change: -780,000

Price: $0.22

Shares: 4,080,000

Value: -$170,742

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Mark E. Pearson	Apr 01	Open Market Sale (S) Market Sale	4,080,000	-780,000	$0.22	-$170,742