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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.

Insider
Date
Role
Action
Shares
Price
Amount
SELICK HAROLD E
9 Jan 2026
Director
Exercised, kept
14,299
$4.21
$60.20K
SELICK HAROLD E
28 Apr 2025
Director
Exercised, kept
10,725
$1.16
$12.44K
PATEL DINESH V PH D
5 Mar 2025
President and CEO
Exercised, kept
24,000
$4.21
$101.04K
SELICK HAROLD E
7 Mar 2024
Director
Exercised, kept
6,490
$1.89
$12.27K
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 Sep 2021
President and CEO
Exercised, kept
40,000
$4.21
$168.40K
PATEL DINESH V PH D
20 Mar 2020
President and CEO
Exercised, kept
10,000
$1.89
$18.90K
PATEL DINESH V PH D
12 Mar 2020
President and CEO
Exercised, kept
18,344
$1.16
$21.28K
PATEL DINESH V PH D
26 Nov 2019
President and CEO
Exercised, kept
4,000
$1.16
$4.64K
SELICK HAROLD E
1 Apr 2019
Director
Exercised, kept
3,310
$1.31
$4.34K
PATEL DINESH V PH D
11 Jan 2019
President and CEO
Exercised, kept
22,344
$1.16
$25.92K
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
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