Stock chart
Ticker: GNCA Exchange: NAS


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Earnings
Earnings
 
Value bought

Past 90 days

 
Value sold

Past 90 days

 
Net insiders buying

Past 90 days

 
Trades (buy and sell)

Past 90 days

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2022-06-03 2022-06-02 S Sale

Duvall Diantha

CHIEF FINANCIAL OFFICER

Officer
1,355 -1.8%
0.06
USD 81
1,355 -1.8% 0.06 USD 81
2022-06-03 2022-06-02 S Sale

Flechtner Jessica Baker

Chief Scientific Officer

Officer
1,578 -1.7%
0.06
USD 95
1,578 -1.7% 0.06 USD 95
2022-06-03 2022-06-02 S Sale

Clark William D

President and CEO

Executive Director
4,023 -1.3%
0.06
USD 241
4,023 -1.3% 0.06 USD 241
2022-06-02 2022-06-01 S Sale

SUMER JACQUELYN L

CHIEF LEGAL & COMPLIANCE OFF

Officer
2,500 -5.5%
0.06
USD 150
2,500 -5.5% 0.06 USD 150
2022-06-02 2022-05-31 S Sale

Clark William D

President and CEO

Executive Director
117,244 -27.5%
0.06
USD 7,234
117,244 -27.5% 0.06 USD 7,234
2022-06-01 2022-05-27 S Sale

Siber George

Non-Executive Director
20,425 -98.8%
0.07
USD 1,334
20,425 -98.8% 0.07 USD 1,334
2022-05-26 2022-05-26 S Sale

Duvall Diantha

CHIEF FINANCIAL OFFICER

Officer
24,407 -24.1%
0.08
USD 1,867
24,407 -24.1% 0.08 USD 1,867
2022-05-26 2022-05-25 S Sale

STAPLETON RAYMOND D JR

CHIEF TECHNOLOGY OFFICER

Officer
2,500 -5.4%
0.09
USD 223
2,500 -5.4% 0.09 USD 223
2022-05-26 2022-05-25 S Sale

New Enterprise Associates 16, L.P.

Large shareholder
4,445,093 -100.0%
0.08
USD 362,720
4,445,093 -100.0% 0.08 USD 362,720
2022-05-26 2022-05-25 S Sale

Sonsini Peter W.

Large shareholder
4,445,093 -100.0%
0.08
USD 362,720
4,445,093 -100.0% 0.08 USD 362,720
2022-05-26 2022-05-25 S Sale

Walker Paul Edward

Large shareholder
4,445,093 -100.0%
0.08
USD 362,720
4,445,093 -100.0% 0.08 USD 362,720
2022-05-26 2022-05-25 S Sale

Flechtner Jessica Baker

Chief Scientific Officer

Officer
16,525 -15.4%
0.09
USD 1,456
16,525 -15.4% 0.09 USD 1,456
2022-05-26 2022-05-25 S Sale

Chang Carmen

Large shareholder
4,445,093 -100.0%
0.08
USD 362,720
4,445,093 -100.0% 0.08 USD 362,720
2022-05-26 2022-05-25 S Sale

Florence Anthony A. Jr.

Large shareholder
4,445,093 -100.0%
0.08
USD 362,720
4,445,093 -100.0% 0.08 USD 362,720
2022-05-26 2022-05-25 S Sale

Behbahani Ali

Non-Executive Director Large shareholder
4,445,093 -100.0%
0.08
USD 362,720
4,445,093 -100.0% 0.08 USD 362,720
2022-05-26 2022-05-25 S Sale

Makhzoumi Mohamad

Large shareholder
4,445,093 -100.0%
0.08
USD 362,720
4,445,093 -100.0% 0.08 USD 362,720
2022-05-26 2022-05-25 S Sale

SANDELL SCOTT D

Large shareholder
4,445,093 -100.0%
0.08
USD 362,720
4,445,093 -100.0% 0.08 USD 362,720
2022-05-26 2022-05-25 S Sale

BASKETT FOREST

Large shareholder
4,445,093 -100.0%
0.08
USD 362,720
4,445,093 -100.0% 0.08 USD 362,720
2022-05-26 2022-05-24 S Sale

New Enterprise Associates 16, L.P.

Large shareholder
5,931,843 -57.2%
0.07
USD 387,943
5,931,843 -57.2% 0.07 USD 387,943
2022-05-26 2022-05-24 S Sale

Sonsini Peter W.

Large shareholder
5,931,843 -57.2%
0.07
USD 387,943
5,931,843 -57.2% 0.07 USD 387,943
2022-05-26 2022-05-24 S Sale

Walker Paul Edward

Large shareholder
5,931,843 -57.2%
0.07
USD 387,943
5,931,843 -57.2% 0.07 USD 387,943
2022-05-26 2022-05-24 S Sale

Chang Carmen

Large shareholder
5,931,843 -57.2%
0.07
USD 387,943
5,931,843 -57.2% 0.07 USD 387,943
2022-05-26 2022-05-24 S Sale

Florence Anthony A. Jr.

Large shareholder
5,931,843 -57.2%
0.07
USD 387,943
5,931,843 -57.2% 0.07 USD 387,943
2022-05-26 2022-05-24 S Sale

Behbahani Ali

Non-Executive Director Large shareholder
5,931,843 -57.2%
0.07
USD 387,943
5,931,843 -57.2% 0.07 USD 387,943
2022-05-26 2022-05-24 S Sale

Makhzoumi Mohamad

Large shareholder
5,931,843 -57.2%
0.07
USD 387,943
5,931,843 -57.2% 0.07 USD 387,943
2022-05-26 2022-05-24 S Sale

SANDELL SCOTT D

Large shareholder
5,931,843 -57.2%
0.07
USD 387,943
5,931,843 -57.2% 0.07 USD 387,943
2022-05-26 2022-05-24 S Sale

BASKETT FOREST

Large shareholder
5,931,843 -57.2%
0.07
USD 387,943
5,931,843 -57.2% 0.07 USD 387,943
2022-04-05 2022-04-04 S Sale

Duvall Diantha

CHIEF FINANCIAL OFFICER

Officer
963 -1.0%
1.25
USD 1,204
963 -1.0% 1.25 USD 1,204
2022-04-05 2022-04-04 S Sale

Clark William D

President and CEO

Executive Director
3,924 -1.1%
1.25
USD 4,905
3,924 -1.1% 1.25 USD 4,905
2022-04-05 2022-04-04 S Sale

Davis Thomas Andrew

CHIEF MEDICAL OFFICER

Officer
1,091 -1.6%
1.25
USD 1,364
1,091 -1.6% 1.25 USD 1,364
2022-04-05 2022-04-04 S Sale

Aakalu Girish N

CHIEF BUSINESS OFFICER

Officer
963 -1.3%
1.25
USD 1,204
963 -1.3% 1.25 USD 1,204
2022-04-05 2022-04-04 S Sale

Flechtner Jessica Baker

Chief Scientific Officer

Officer
1,212 -1.2%
1.25
USD 1,515
1,212 -1.2% 1.25 USD 1,515
2022-03-17 2022-03-16 S Sale

Davis Thomas Andrew

CHIEF MEDICAL OFFICER

Officer
2,717 -3.8%
1.10
USD 2,989
2,717 -3.8% 1.10 USD 2,989
2022-03-17 2022-03-16 S Sale

Duvall Diantha

CHIEF FINANCIAL OFFICER

Officer
2,873 -3.0%
1.10
USD 3,160
2,873 -3.0% 1.10 USD 3,160
2022-03-17 2022-03-16 S Sale

Flechtner Jessica Baker

Chief Scientific Officer

Officer
3,349 -3.3%
1.10
USD 3,684
3,349 -3.3% 1.10 USD 3,684
2022-03-17 2022-03-16 S Sale

Clark William D

President and CEO

Executive Director
11,435 -3.0%
1.10
USD 12,579
11,435 -3.0% 1.10 USD 12,579
2022-03-17 2022-03-16 S Sale

Aakalu Girish N

CHIEF BUSINESS OFFICER

Officer
2,397 -3.1%
1.10
USD 2,637
2,397 -3.1% 1.10 USD 2,637
2020-11-10 2020-11-10 B Purchase

Clark William D

President and CEO

Executive Director
4,760 +inf%
2.06
USD 9,806
4,760 +inf% 2.06 USD 9,806
2020-07-30 2020-07-24 B Purchase

GLAXOSMITHKLINE PLC

Large shareholder
1,260,504 +37.4%
2.25
USD 2,836,134
1,260,504 +37.4% 2.25 USD 2,836,134
2020-07-28 2020-07-24 B Purchase

Makhzoumi Mohamad

Large shareholder
3,151,260 +43.6%
2.25
USD 7,090,335
3,151,260 +43.6% 2.25 USD 7,090,335
2020-07-28 2020-07-24 B Purchase

SANDELL SCOTT D

Large shareholder
3,151,260 +43.6%
2.25
USD 7,090,335
3,151,260 +43.6% 2.25 USD 7,090,335
2020-07-28 2020-07-24 B Purchase

Walker Paul Edward

Large shareholder
3,151,260 +43.6%
2.25
USD 7,090,335
3,151,260 +43.6% 2.25 USD 7,090,335
2020-07-28 2020-07-24 B Purchase

Sonsini Peter W.

Large shareholder
3,151,260 +43.6%
2.25
USD 7,090,335
3,151,260 +43.6% 2.25 USD 7,090,335
2020-07-28 2020-07-24 B Purchase

Behbahani Ali

Non-Executive Director Large shareholder
3,151,260 +43.6%
2.25
USD 7,090,335
3,151,260 +43.6% 2.25 USD 7,090,335
2020-07-28 2020-07-24 B Purchase

Chang Carmen

Large shareholder
3,151,260 +43.6%
2.25
USD 7,090,335
3,151,260 +43.6% 2.25 USD 7,090,335
2020-07-28 2020-07-24 B Purchase

BASKETT FOREST

Large shareholder
3,151,260 +43.6%
2.25
USD 7,090,335
3,151,260 +43.6% 2.25 USD 7,090,335
2020-07-28 2020-07-24 B Purchase

MAKOWER JOSHUA

Large shareholder
3,151,260 +43.6%
2.25
USD 7,090,335
3,151,260 +43.6% 2.25 USD 7,090,335
2020-07-28 2020-07-24 B Purchase

Florence Anthony A. Jr.

Large shareholder
3,151,260 +43.6%
2.25
USD 7,090,335
3,151,260 +43.6% 2.25 USD 7,090,335
2020-07-28 2020-07-24 B Purchase

New Enterprise Associates 16, L.P.

Large shareholder
3,151,260 +43.6%
2.25
USD 7,090,335
3,151,260 +43.6% 2.25 USD 7,090,335
2019-06-26 2019-06-24 B Purchase

GLAXOSMITHKLINE PLC

Large shareholder
1,857,142 +123.1%
3.50
USD 6,499,997
1,857,142 +123.1% 3.50 USD 6,499,997
2019-06-25 2019-06-24 B Purchase

BARRIS PETER J

Large shareholder
2,857,142 +65.4%
3.50
USD 9,999,997
2,857,142 +65.4% 3.50 USD 9,999,997
2019-06-25 2019-06-24 B Purchase

SANDELL SCOTT D

Large shareholder
2,857,142 +65.4%
3.50
USD 9,999,997
2,857,142 +65.4% 3.50 USD 9,999,997
2019-06-25 2019-06-24 B Purchase

Makhzoumi Mohamad

Large shareholder
2,857,142 +65.4%
3.50
USD 9,999,997
2,857,142 +65.4% 3.50 USD 9,999,997
2019-06-25 2019-06-24 B Purchase

Chang Carmen

Large shareholder
2,857,142 +65.4%
3.50
USD 9,999,997
2,857,142 +65.4% 3.50 USD 9,999,997
2019-06-25 2019-06-24 B Purchase

BASKETT FOREST

Large shareholder
2,857,142 +65.4%
3.50
USD 9,999,997
2,857,142 +65.4% 3.50 USD 9,999,997
2019-06-25 2019-06-24 B Purchase

New Enterprise Associates 16, L.P.

Large shareholder
2,857,142 +65.4%
3.50
USD 9,999,997
2,857,142 +65.4% 3.50 USD 9,999,997
2019-06-25 2019-06-24 B Purchase

Behbahani Ali

Large shareholder
2,857,142 +65.4%
3.50
USD 9,999,997
2,857,142 +65.4% 3.50 USD 9,999,997
2019-06-25 2019-06-24 B Purchase

MAKOWER JOSHUA

Large shareholder
2,857,142 +65.4%
3.50
USD 9,999,997
2,857,142 +65.4% 3.50 USD 9,999,997
2019-06-25 2019-06-24 B Purchase

Sonsini Peter W.

Large shareholder
2,857,142 +65.4%
3.50
USD 9,999,997
2,857,142 +65.4% 3.50 USD 9,999,997
2019-06-25 2019-06-24 B Purchase

MOTT DAVID M

Large shareholder
2,857,142 +65.4%
3.50
USD 9,999,997
2,857,142 +65.4% 3.50 USD 9,999,997
2019-06-25 2019-06-24 B Purchase

Florence Anthony A. Jr.

Large shareholder
2,857,142 +65.4%
3.50
USD 9,999,997
2,857,142 +65.4% 3.50 USD 9,999,997
2019-02-19 2019-02-14 B Purchase

Behbahani Ali

Non-Executive Director Large shareholder
9,948,269 +39.8%
0.47
USD 4,688,619
9,948,269 +39.8% 0.47 USD 4,688,619
2019-02-19 2019-02-14 B Purchase

Sonsini Peter W.

Large shareholder
9,948,269 +39.8%
0.47
USD 4,688,619
9,948,269 +39.8% 0.47 USD 4,688,619
2019-02-19 2019-02-14 B Purchase

MAKOWER JOSHUA

Large shareholder
9,948,269 +39.8%
0.47
USD 4,688,619
9,948,269 +39.8% 0.47 USD 4,688,619
2019-02-19 2019-02-14 B Purchase

BASKETT FOREST

Large shareholder
9,948,269 +39.8%
0.47
USD 4,688,619
9,948,269 +39.8% 0.47 USD 4,688,619
2019-02-19 2019-02-14 B Purchase

SANDELL SCOTT D

Large shareholder
9,948,269 +39.8%
0.47
USD 4,688,619
9,948,269 +39.8% 0.47 USD 4,688,619
2019-02-19 2019-02-14 B Purchase

MOTT DAVID M

Large shareholder
9,948,269 +39.8%
0.47
USD 4,688,619
9,948,269 +39.8% 0.47 USD 4,688,619
2019-02-19 2019-02-14 B Purchase

Makhzoumi Mohamad

Large shareholder
9,948,269 +39.8%
0.47
USD 4,688,619
9,948,269 +39.8% 0.47 USD 4,688,619
2019-02-19 2019-02-14 B Purchase

Florence Anthony A. Jr.

Large shareholder
9,948,269 +39.8%
0.47
USD 4,688,619
9,948,269 +39.8% 0.47 USD 4,688,619
2019-02-19 2019-02-14 B Purchase

Chang Carmen

Large shareholder
9,948,269 +39.8%
0.47
USD 4,688,619
9,948,269 +39.8% 0.47 USD 4,688,619
2019-02-19 2019-02-14 B Purchase

New Enterprise Associates 16, L.P.

Large shareholder
9,948,269 +39.8%
0.47
USD 4,688,619
9,948,269 +39.8% 0.47 USD 4,688,619
2019-02-19 2019-02-14 B Purchase

BARRIS PETER J

Large shareholder
9,948,269 +39.8%
0.47
USD 4,688,619
9,948,269 +39.8% 0.47 USD 4,688,619
2018-09-14 2018-09-13 B Purchase

Alfieri Michael

Principle Financial Officer

Officer
10,000 +inf%
0.54
USD 5,400
10,000 +inf% 0.54 USD 5,400
2018-09-24 2018-09-07 B Purchase

Siber George

Non-Executive Director
13,400 +8.8%
0.61
USD 8,174
13,400 +8.8% 0.61 USD 8,174
2018-09-24 2018-09-06 B Purchase

Siber George

Non-Executive Director
25,000 +19.7%
0.61
USD 15,250
25,000 +19.7% 0.61 USD 15,250
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