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Protagonist Therapeutics, Inc

PTGX Net selling
CIK 0001377121 #955 in the set updated 17 Sep 2026
Bought (120 mo)
$518.97K
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$115.56M
$5.11M on a plan · $93.46M straight out of an exercise
Sold at will
$16.99M
49 of 124 sales
Net
−$115.04M
−$16.47M against sales at will

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
$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
$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

162
Insider
Date
Role
Action
Shares
Price
Amount
PATEL DINESH V PH D
10 Sep 2026
President and CEO
Sold after exercise
7,278
$144.10
$1.05M
PATEL DINESH V PH D
9 Sep 2026
President and CEO
Sold after exercise
63,548
$146.18
$9.29M
PATEL DINESH V PH D
8 Sep 2026
President and CEO
Sold after exercise
54,174
$145.87
$7.90M
PATEL DINESH V PH D
11 Aug 2026
President and CEO
Sold after exercise
34,239
$148.52
$5.09M
PATEL DINESH V PH D
10 Aug 2026
President and CEO
Sold after exercise
65,761
$149.11
$9.81M
Waddill William D.
23 Jun 2026
Director
Sold after exercise
9,000
$117.94
$1.06M
Waddill William D.
10 Jun 2026
Director
Sold after exercise
9,000
$107.68
$969.12K
Waddill William D.
29 May 2026
Director
Sold after exercise
9,000
$99.64
$896.76K
PATEL DINESH V PH D
12 May 2026
President and CEO
Sold after exercise
75,000
$100.12
$7.51M
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
Giraudo Bryan
7 May 2026
Director
Sold after exercise indirect
12,000
$100.07
$1.20M
Giraudo Bryan
7 May 2026
Director
Sold after exercise
36,000
$100.14
$3.61M
Ali Asif
20 Apr 2026
Chief Financial Officer
Sell
1,750
$105.47
$184.57K
Ali Asif
26 Mar 2026
Chief Financial Officer
Sold after exercise
24,765
$104.24
$2.58M
SELICK HAROLD E
26 Mar 2026
Director
Sold after exercise
24,000
$105.00
$2.52M
MOLINA ARTURO MD
26 Mar 2026
Chief Medical Officer
Sold after exercise
15,000
$104.79
$1.57M
PATEL DINESH V PH D
25 Mar 2026
President and CEO
Sold after exercise
54,641
$101.00
$5.52M
PATEL DINESH V PH D
24 Mar 2026
President and CEO
Sold after exercise
59
$101.00
$5.96K
Williams Lewis T
17 Feb 2026
Director
Sold after exercise
18,000
$82.42
$1.48M
Waddill William D.
6 Feb 2026
Director
Sold after exercise
20,000
$83.68
$1.67M
MOLINA ARTURO MD
27 Jan 2026
Chief Medical Officer
Sold after exercise
5,000
$82.00
$410.00K
Ali Asif
27 Jan 2026
Chief Financial Officer
Sold after exercise
18,203
$83.14
$1.51M
Ali Asif
27 Jan 2026
Chief Financial Officer
Sold after exercise
28,000
$83.13
$2.33M
PATEL DINESH V PH D
27 Jan 2026
President and CEO
Sold after exercise
4,068
$83.19
$338.42K
MOLINA ARTURO MD
26 Jan 2026
Chief Medical Officer
Sold after exercise
5,000
$82.28
$411.40K
PATEL DINESH V PH D
26 Jan 2026
President and CEO
Sold after exercise
14,205
$84.05
$1.19M
PATEL DINESH V PH D
26 Jan 2026
President and CEO
Sold after exercise
10,685
$84.00
$897.54K
MOLINA ARTURO MD
23 Jan 2026
Chief Medical Officer
Sell
13,151
$82.42
$1.08M
PATEL DINESH V PH D
23 Jan 2026
President and CEO
Sold after exercise
19,315
$84.59
$1.63M
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
SELICK HAROLD E
9 Jan 2026
Director
Exercised, kept
14,299
$4.21
$60.20K
MOLINA ARTURO MD
17 Nov 2025
Chief Medical Officer
Sell
2,712
$84.77
$229.90K
Waddill William D.
10 Oct 2025
Director
Sold after exercise
8,000
$87.81
$702.48K
Waddill William D.
10 Oct 2025
Director
Sold after exercise
4,000
$69.25
$277.00K
Waddill William D.
22 Sep 2025
Director
Sold on a plan
4,000
$64.25
$257.00K
Waddill William D.
27 Aug 2025
Director
Sold on a plan
4,000
$59.25
$237.00K
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
MOLINA ARTURO MD
10 Jun 2025
Chief Medical Officer
Sold after exercise
10,000
$57.03
$570.30K
MOLINA ARTURO MD
9 Jun 2025
Chief Medical Officer
Sold after exercise
10,000
$55.51
$555.10K
SELICK HAROLD E
28 Apr 2025
Director
Exercised, kept
10,725
$1.16
$12.44K
Ali Asif
22 Apr 2025
Chief Financial Officer
Sell
1,756
$46.00
$80.78K
Waddill William D.
17 Mar 2025
Director
Sold on a plan
4,000
$54.25
$217.00K
MOLINA ARTURO MD
13 Mar 2025
Chief Medical Officer
Sold after exercise
30,514
$55.74
$1.70M
Ali Asif
12 Mar 2025
Chief Financial Officer
Sold after exercise
24,903
$58.73
$1.46M
PATEL DINESH V PH D
5 Mar 2025
President and CEO
Exercised, kept
24,000
$4.21
$101.04K
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
$0.00
Ali Asif
16 Jan 2025
Chief Financial Officer
Sell
1,317
$0.00
$0.00
MOLINA ARTURO MD
16 Jan 2025
Chief Medical Officer
Sell
3,252
$0.00
$0.00
MOLINA ARTURO MD
16 Jan 2025
Chief Medical Officer
Sell
388
$0.00
$0.00
MOLINA ARTURO MD
27 Nov 2024
Chief Medical Officer
Sold after exercise
16,000
$44.83
$717.28K
MOLINA ARTURO MD
27 Nov 2024
Chief Medical Officer
Sold after exercise
10,000
$44.50
$445.00K
PATEL DINESH V PH D
26 Nov 2024
President and CEO
Sell
21,480
$46.25
$993.45K
Gupta Suneel
26 Nov 2024
Chief Development Officer
Sold after exercise
19,191
$45.50
$873.19K
MOLINA ARTURO MD
26 Nov 2024
Chief Medical Officer
Sold after exercise
5,529
$45.60
$252.12K
PATEL DINESH V PH D
25 Nov 2024
President and CEO
Sold after exercise
78,520
$46.96
$3.69M
Gupta Suneel
25 Nov 2024
Chief Development Officer
Sold after exercise
103,437
$46.04
$4.76M
MOLINA ARTURO MD
15 Nov 2024
Chief Medical Officer
Sell
1,906
$40.98
$78.11K
Ali Asif
11 Sep 2024
Chief Financial Officer
Sold after exercise
12,000
$44.47
$533.64K
Ali Asif
11 Sep 2024
Chief Financial Officer
Sold after exercise
2,203
$44.59
$98.23K
Waddill William D.
10 Sep 2024
Director
Sold after exercise
8,000
$45.00
$360.00K
Waddill William D.
24 Jul 2024
Director
Sold after exercise
8,000
$40.00
$320.00K
PATEL DINESH V PH D
7 Jun 2024
President and CEO
Sold on a plan
35,000
$35.19
$1.23M
Waddill William D.
7 Jun 2024
Director
Sold after exercise
8,000
$35.00
$280.00K
Ali Asif
18 Apr 2024
Chief Financial Officer
Sell
1,234
$25.11
$30.99K
PATEL DINESH V PH D
1 Apr 2024
President and CEO
Sold on a plan
25,000
$28.31
$707.75K
SELICK HAROLD E
7 Mar 2024
Director
Exercised, kept
6,490
$1.89
$12.27K
Ali Asif
1 Mar 2024
Chief Financial Officer
Sold after exercise
2,248
$32.33
$72.68K
Ali Asif
1 Mar 2024
Chief Financial Officer
Sold after exercise
12,000
$32.22
$386.64K
Waddill William D.
1 Mar 2024
Director
Sold after exercise
12,975
$31.34
$406.64K
PATEL DINESH V PH D
1 Mar 2024
President and CEO
Sold on a plan
30,000
$31.62
$948.60K
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
Gupta Suneel
9 Jan 2024
Chief Development Officer
Sold after exercise
5,000
$25.00
$125.00K
PATEL DINESH V PH D
13 Dec 2023
President and CEO
Sold on a plan
75,000
$20.08
$1.51M
MOLINA ARTURO MD
15 Nov 2023
Chief Medical Officer
Sell
1,848
$16.24
$30.01K
Gupta Suneel
19 Oct 2023
Chief Development Officer
Exercised, kept
20,000
$7.38
$147.60K
PATEL DINESH V PH D
18 Oct 2023
President and CEO
Exercised, kept
6,000
$4.21
$25.26K
SELICK HAROLD E
10 Apr 2023
Director
Exercised, kept
6,196
$0.87
$5.39K
Liu David Y
16 Nov 2022
Chief R&D Strategy Officer
Exercised, kept
35,331
$4.21
$148.74K
Liu David Y
16 Nov 2022
Chief R&D Strategy Officer
Exercised, kept
35,656
$1.16
$41.36K
Liu David Y
16 Nov 2022
Chief R&D Strategy Officer
Exercised, kept
5,999
$1.89
$11.34K
Liu David Y
16 Nov 2022
Chief R&D Strategy Officer
Exercised, kept
9,726
$1.89
$18.38K
Liu David Y
16 Nov 2022
Chief R&D Strategy Officer
Exercised, kept
13,767
$0.87
$11.98K
PATEL DINESH V PH D
23 Aug 2022
President and CEO
Exercised, kept
20,000
$4.21
$84.20K
PATEL DINESH V PH D
4 May 2022
President and CEO
Exercised, kept
15,742
$4.21
$66.27K
Waddill William D.
3 May 2022
Director
Exercised, kept
12,000
$8.59
$103.08K
PATEL DINESH V PH D
26 Apr 2022
President and CEO
Exercised, kept
30,000
$4.21
$126.30K
Gupta Suneel
26 Apr 2022
Chief Development Officer
Exercised, kept
40,000
$7.38
$295.20K
PATEL DINESH V PH D
14 Apr 2022
President and CEO
Exercised, kept
34,087
$1.89
$64.42K
PATEL DINESH V PH D
21 Dec 2021
President and CEO
Sell
15,000
$32.14
$482.17K
PATEL DINESH V PH D
21 Sep 2021
President and CEO
Exercised, kept
40,000
$4.21
$168.40K
Liu David Y
17 Aug 2021
Chief Scientific Officer
Sold after exercise
14,779
$47.56
$702.89K
Noonberg Sarah B.
11 Feb 2021
Director
Sold after exercise
3,700
$25.09
$92.83K
Noonberg Sarah B.
10 Feb 2021
Director
Sold after exercise
400
$26.04
$10.42K
Noonberg Sarah B.
10 Feb 2021
Director
Sold after exercise
4,300
$25.42
$109.31K
PATEL DINESH V PH D
19 Jan 2021
President and CEO
Sold after exercise
24,846
$24.60
$611.10K
KHOSLA CHAITAN PHD
11 Aug 2020
Director
Sold after exercise
2,499
$17.19
$42.95K
PATEL DINESH V PH D
20 Mar 2020
President and CEO
Exercised, kept
10,000
$1.89
$18.90K
SELICK HAROLD E
12 Mar 2020
Director
Buy
12,000
$6.70
$80.40K
PATEL DINESH V PH D
12 Mar 2020
President and CEO
Exercised, kept
18,344
$1.16
$21.28K
PATEL DINESH V PH D
3 Dec 2019
President and CEO
Buy
20,000
$5.65
$113.00K
PATEL DINESH V PH D
3 Dec 2019
President and CEO
Buy
10,000
$5.55
$55.50K
Kalkofen Donald A.
3 Dec 2019
Chief Financial Officer
Buy
562
$5.09
$2.86K
Kalkofen Donald A.
3 Dec 2019
Chief Financial Officer
Buy
613
$5.10
$3.13K
Gupta Suneel
3 Dec 2019
EVP Clinical Operations
Buy
30,000
$5.13
$153.90K
Giraudo Bryan
3 Dec 2019
Director
Buy indirect
8,000
$5.70
$45.62K
PATEL DINESH V PH D
26 Nov 2019
President and CEO
Exercised, kept
4,000
$1.16
$4.64K
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
SELICK HAROLD E
1 Apr 2019
Director
Exercised, kept
3,310
$1.31
$4.34K
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
PATEL DINESH V PH D
11 Jan 2019
President and CEO
Exercised, kept
22,344
$1.16
$25.92K
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
PATEL DINESH V PH D
10 May 2018
President and CEO
Exercised, kept
13,516
$1.16
$15.68K
PATEL DINESH V PH D
2 Apr 2018
President and CEO
Exercised, kept
20,000
$1.16
$23.20K
PATEL DINESH V PH D
26 Mar 2018
President and CEO
Exercised, kept
11,298
$0.87
$9.83K
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
Liu David Y
12 Mar 2018
Chief Scientific Officer
Sold after exercise
3,500
$21.29
$74.50K
Liu David Y
2 Mar 2018
Chief Scientific Officer
Sold after exercise
875
$20.00
$17.50K
Liu David Y
16 Jan 2018
Chief Scientific Officer
Sold after exercise
875
$20.00
$17.50K
Shames Richard S.
22 Dec 2017
Chief Medical Officer
Sold after exercise
3,529
$20.50
$72.34K
PATEL DINESH V PH D
21 Dec 2017
President and CEO
Sold after exercise
8,210
$19.56
$160.57K
PATEL DINESH V PH D
20 Dec 2017
President and CEO
Sold after exercise
1,790
$19.55
$34.99K
O'Neil Thomas P.
18 Dec 2017
Chief Financial Officer
Sold after exercise
8,000
$20.00
$160.00K
Liu David Y
18 Dec 2017
Chief Scientific Officer
Sold after exercise
875
$20.00
$17.50K
Liu David Y
30 Nov 2017
Chief Scientific Officer
Sold after exercise
875
$20.00
$17.50K
Liu David Y
13 Nov 2017
Chief Scientific Officer
Sold after exercise
3,500
$16.97
$59.38K
Liu David Y
13 Nov 2017
Chief Scientific Officer
Sold after exercise
3,500
$16.97
$59.38K
Shames Richard S.
5 Oct 2017
Chief Medical Officer
Sold after exercise
2,017
$19.00
$38.32K
Shames Richard S.
12 Sep 2017
Chief Medical Officer
Sell
3,687
$14.31
$52.75K
Shames Richard S.
29 Aug 2017
Chief Medical Officer
Sold after exercise
1,512
$17.00
$25.70K
Liu David Y
28 Aug 2017
Chief Scientific Officer
Sold after exercise
3,500
$15.00
$52.50K
Liu David Y
10 Jul 2017
Chief Scientific Officer
Sold after exercise
3,500
$12.68
$44.38K
Giraudo Bryan
16 May 2017
Director
Buy
10,000
$6.46
$64.57K
PATEL DINESH V PH D
9 May 2017
President and CEO
Exercised, kept
19,099
$1.16
$22.15K
PATEL DINESH V PH D
6 Apr 2017
President and CEO
Exercised, kept
20,000
$1.16
$23.20K
PATEL DINESH V PH D
10 Mar 2017
President and CEO
Exercised, kept
16,362
$0.87
$14.23K

What was left out

Form 4 filings counted 251
Amendments (4/A) skipped 3
Filings about a different issuer 0
Unreadable filings 0
Joint filings 7
Sales on a Rule 10b5-1 plan 7
Sales straight out of an exercise 68
Sales at will 49
Transactions with no price 0
Shares from compensation/vesting 2,865,926
Sales filed before the plan box existed 25
History held since 15 Sep 2016