Protagonist Therapeutics, Inc

By person

17 insiders · 162 transactions

Insider

Role

Bought

Sold

Net

Holding

Worth

Change

PATEL DINESH V PH D

President and CEO

$168.50K (2)

$67.29M (32) scheduled

−$67.12M

522,968

$75.36M

+257.5%

Ali Asif

Chief Financial Officer

—

$10.29M (16) scheduled

−$10.29M

59,003

$8.50M

+6,613%

MOLINA ARTURO MD

Chief Medical Officer

—

$8.84M (16) scheduled

−$8.84M

84,115

$12.12M

—

Waddill William D.

Director

—

$7.66M (13) scheduled

−$7.66M

7,825

$1.13M

—

Giraudo Bryan

Director

$110.19K (2)

$5.92M (4) scheduled

−$5.81M

12,695

$1.83M

+27.0%

Gupta Suneel

Chief Development Officer

$153.90K (1)

$5.76M (3) scheduled

−$5.61M

267,433

$38.54M

+1,250%

CANAAN X L.P.

10% owner

—

$4.04M (13)

−$4.04M

2,116,552

$305.00M

−13.7%

SELICK HAROLD E

Director

$80.40K (1)

$2.52M (1) scheduled

−$2.44M

60,845

$8.77M

—

Williams Lewis T

Director

—

$1.48M (1) scheduled

−$1.48M

7,825

$1.13M

—

Liu David Y

Chief R&D Strategy Officer

—

$1.13M (13) scheduled

−$1.13M

167,590

$24.15M

+1,328%

Shames Richard S.

Chief Medical Officer

—

$215.91K (7) scheduled

−$215.91K

32,021

$4.61M

+493.8%

Noonberg Sarah B.

Director

—

$212.56K (3) scheduled

−$212.56K

$0.00

—

O'Neil Thomas P.

Chief Financial Officer

—

$160.00K (1) scheduled

−$160.00K

30,560

$4.40M

+783.2%

KHOSLA CHAITAN PHD

Director

—

$42.95K (1) scheduled

−$42.95K

$0.00

—

Kalkofen Donald A.

Chief Financial Officer

$5.99K (2)

—

+$5.99K

18,521

$2.67M

+689.5%

Saks Samuel R

Chief Medical Officer

—

14,000

$2.02M

—

O'Dowd Sarah A

Director

—

7,825

$1.13M

—

No percentages here. These insiders hold more than one class of share between them, and the share count on file covers one of them rather than all. Dividing the two would compare different things.

Individual transactions

Insider

Date

Role

Action

Price

Amount

Giraudo Bryan

8 May 2026

Director

Sell

5,130

$100.00

$513.00K

Giraudo Bryan

8 May 2026

Director

Sell indirect

6,000

$100.00

$600.00K

Ali Asif

20 Apr 2026

Chief Financial Officer

Sell

1,750

$105.47

$184.57K

MOLINA ARTURO MD

23 Jan 2026

Chief Medical Officer

Sell

13,151

$82.42

$1.08M

Ali Asif

20 Jan 2026

Chief Financial Officer

Sell

8,588

$82.48

$708.34K

PATEL DINESH V PH D

20 Jan 2026

President and CEO

Sell

34,438

$82.48

$2.84M

MOLINA ARTURO MD

20 Jan 2026

Chief Medical Officer

Sell

9,514

$82.48

$784.71K

MOLINA ARTURO MD

17 Nov 2025

Chief Medical Officer

Sell

2,712

$84.77

$229.90K

PATEL DINESH V PH D

25 Jul 2025

President and CEO

Sell

10,415

$54.78

$570.53K

PATEL DINESH V PH D

23 Jul 2025

President and CEO

Sell

17,520

$54.79

$959.92K

PATEL DINESH V PH D

22 Jul 2025

President and CEO

Sell

22,065

$55.05

$1.21M

PATEL DINESH V PH D

21 Jul 2025

President and CEO

Sell

12,859

$54.86

$705.44K

Ali Asif

22 Apr 2025

Chief Financial Officer

Sell

1,756

$46.00

$80.78K

PATEL DINESH V PH D

19 Feb 2025

President and CEO

Sell

5,359

$38.18

$204.61K

Ali Asif

16 Jan 2025

Chief Financial Officer

Sell

2,601

$0.00

Ali Asif

16 Jan 2025

Chief Financial Officer

Sell

1,317

$0.00

MOLINA ARTURO MD

16 Jan 2025

Chief Medical Officer

Sell

3,252

$0.00

MOLINA ARTURO MD

16 Jan 2025

Chief Medical Officer

Sell

388

$0.00

PATEL DINESH V PH D

26 Nov 2024

President and CEO

Sell

21,480

$46.25

$993.45K

MOLINA ARTURO MD

15 Nov 2024

Chief Medical Officer

Sell

1,906

$40.98

$78.11K

Ali Asif

18 Apr 2024

Chief Financial Officer

Sell

1,234

$25.11

$30.99K

Ali Asif

29 Feb 2024

Chief Financial Officer

Sell

2,089

$31.00

$64.76K

Ali Asif

29 Feb 2024

Chief Financial Officer

Sell

7,850

$30.61

$240.29K

MOLINA ARTURO MD

15 Nov 2023

Chief Medical Officer

Sell

1,848

$16.24

$30.01K

PATEL DINESH V PH D

21 Dec 2021

President and CEO

Sell

15,000

$32.14

$482.17K

PATEL DINESH V PH D

6 Aug 2019

President and CEO

Sell

10,792

$8.85

$95.54K

Liu David Y

6 Aug 2019

Chief Scientific Officer

Sell

3,395

$8.85

$30.04K

Shames Richard S.

1 Mar 2019

Chief Medical Officer

Sell

657

$8.03

$5.28K

PATEL DINESH V PH D

1 Mar 2019

President and CEO

Sell

2,183

$8.03

$17.53K

Liu David Y

1 Mar 2019

Chief Scientific Officer

Sell

810

$8.03

$6.50K

Shames Richard S.

6 Feb 2019

Chief Medical Officer

Sell

2,580

$7.71

$19.89K

Shames Richard S.

6 Feb 2019

Chief Medical Officer

Sell

198

$8.15

$1.61K

Liu David Y

6 Feb 2019

Chief Scientific Officer

Sell

3,821

$7.74

$29.56K

PATEL DINESH V PH D

6 Feb 2019

President and CEO

Sell

10,132

$7.71

$78.12K

PATEL DINESH V PH D

6 Feb 2019

President and CEO

Sell

777

$8.10

$6.29K

CANAAN X L.P.

17 May 2018

10% owner

Sell

38,968

$6.09

$237.36K

CANAAN X L.P.

16 May 2018

10% owner

Sell

29,441

$6.46

$190.07K

CANAAN X L.P.

15 May 2018

10% owner

Sell

57,715

$6.48

$374.08K

CANAAN X L.P.

14 May 2018

10% owner

Sell

77,591

$6.37

$494.22K

CANAAN X L.P.

23 Mar 2018

10% owner

Sell

59,950

$20.71

$1.24M

CANAAN X L.P.

22 Mar 2018

10% owner

Sell

4,759

$20.62

$98.13K

CANAAN X L.P.

21 Mar 2018

10% owner

Sell

17,699

$20.61

$364.73K

CANAAN X L.P.

20 Mar 2018

10% owner

Sell

17,060

$20.61

$351.54K

CANAAN X L.P.

19 Mar 2018

10% owner

Sell

13,439

$20.57

$276.45K

CANAAN X L.P.

16 Mar 2018

10% owner

Sell

6,926

$20.51

$142.06K

CANAAN X L.P.

15 Mar 2018

10% owner

Sell

11,751

$20.64

$242.52K

CANAAN X L.P.

14 Mar 2018

10% owner

Sell

200

$20.77

$4.15K

CANAAN X L.P.

13 Mar 2018

10% owner

Sell

1,204

$20.84

$25.09K

Shames Richard S.

12 Sep 2017

Chief Medical Officer

Sell

3,687

$14.31

$52.75K

Show all 162 transactions →

Protagonist Therapeutics, Inc

By person

Individual transactions

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