Stocks · Health care · Pharmaceutical Preparations

Protagonist Therapeutics, Inc

PTGX Clue Score48
United States Fiscal year ends December CIK 0001377121
143.73
+2.73%
Close, 9 Oct 2026 · USD

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
143.73 on 9 Oct 2026
159 116 74 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $79.17 14 Oct 2025 $76.94 15 Oct 2025 $77.68 16 Oct 2025 $75.73 17 Oct 2025 $77.50 20 Oct 2025 $76.72 21 Oct 2025 $75.00 22 Oct 2025 $73.50 23 Oct 2025 $73.99 24 Oct 2025 $74.86 27 Oct 2025 $75.25 28 Oct 2025 $78.51 29 Oct 2025 $76.69 30 Oct 2025 $77.85 31 Oct 2025 $78.62 3 Nov 2025 $75.95 4 Nov 2025 $76.50 5 Nov 2025 $77.88 6 Nov 2025 $79.78 7 Nov 2025 $79.54 10 Nov 2025 $83.23 11 Nov 2025 $85.56 12 Nov 2025 $84.85 13 Nov 2025 $83.24 14 Nov 2025 $84.61 17 Nov 2025 $84.77 18 Nov 2025 $84.39 19 Nov 2025 $85.13 20 Nov 2025 $84.20 21 Nov 2025 $85.40 24 Nov 2025 $87.69 25 Nov 2025 $89.86 26 Nov 2025 $90.07 28 Nov 2025 $90.00 1 Dec 2025 $85.64 2 Dec 2025 $84.65 3 Dec 2025 $86.07 4 Dec 2025 $87.33 5 Dec 2025 $89.65 8 Dec 2025 $90.25 9 Dec 2025 $88.56 10 Dec 2025 $91.38 11 Dec 2025 $92.25 12 Dec 2025 $95.35 15 Dec 2025 $94.79 16 Dec 2025 $91.54 17 Dec 2025 $89.34 18 Dec 2025 $85.79 19 Dec 2025 $86.05 22 Dec 2025 $87.41 23 Dec 2025 $88.73 24 Dec 2025 $88.84 26 Dec 2025 $88.78 29 Dec 2025 $87.93 30 Dec 2025 $87.26 31 Dec 2025 $87.34 2 Jan 2026 $87.18 5 Jan 2026 $84.18 6 Jan 2026 $82.27 7 Jan 2026 $82.34 8 Jan 2026 $80.20 9 Jan 2026 $80.22 12 Jan 2026 $80.25 13 Jan 2026 $81.36 14 Jan 2026 $85.23 15 Jan 2026 $84.75 16 Jan 2026 $81.99 20 Jan 2026 $83.42 21 Jan 2026 $83.89 22 Jan 2026 $84.79 23 Jan 2026 $83.10 26 Jan 2026 $82.30 27 Jan 2026 $83.08 28 Jan 2026 $81.76 29 Jan 2026 $79.73 30 Jan 2026 $81.80 2 Feb 2026 $83.05 3 Feb 2026 $85.59 4 Feb 2026 $83.30 5 Feb 2026 $80.67 6 Feb 2026 $84.49 9 Feb 2026 $83.32 10 Feb 2026 $83.88 11 Feb 2026 $83.49 12 Feb 2026 $81.93 13 Feb 2026 $81.49 17 Feb 2026 $82.46 18 Feb 2026 $82.99 19 Feb 2026 $83.09 20 Feb 2026 $82.76 23 Feb 2026 $86.59 24 Feb 2026 $87.39 25 Feb 2026 $87.10 26 Feb 2026 $88.39 27 Feb 2026 $92.08 2 Mar 2026 $94.24 3 Mar 2026 $91.30 4 Mar 2026 $94.83 5 Mar 2026 $91.41 6 Mar 2026 $92.09 9 Mar 2026 $96.66 10 Mar 2026 $97.05 11 Mar 2026 $96.48 12 Mar 2026 $95.42 13 Mar 2026 $92.36 16 Mar 2026 $96.75 17 Mar 2026 $97.23 18 Mar 2026 $97.09 19 Mar 2026 $101.68 20 Mar 2026 $98.87 23 Mar 2026 $98.54 24 Mar 2026 $100.39 25 Mar 2026 $104.31 26 Mar 2026 $102.17 27 Mar 2026 $98.97 30 Mar 2026 $99.87 31 Mar 2026 $105.40 1 Apr 2026 $103.67 2 Apr 2026 $103.78 6 Apr 2026 $102.89 7 Apr 2026 $103.75 8 Apr 2026 $102.09 9 Apr 2026 $104.09 10 Apr 2026 $98.82 13 Apr 2026 $97.57 14 Apr 2026 $104.72 15 Apr 2026 $105.44 16 Apr 2026 $103.73 17 Apr 2026 $105.98 20 Apr 2026 $105.47 21 Apr 2026 $105.89 22 Apr 2026 $105.55 23 Apr 2026 $102.62 24 Apr 2026 $100.00 27 Apr 2026 $98.51 28 Apr 2026 $101.21 29 Apr 2026 $98.52 30 Apr 2026 $98.97 1 May 2026 $98.37 4 May 2026 $99.52 5 May 2026 $99.21 6 May 2026 $103.97 7 May 2026 $98.85 8 May 2026 $99.36 11 May 2026 $103.50 12 May 2026 $99.95 13 May 2026 $103.88 14 May 2026 $105.55 15 May 2026 $102.18 18 May 2026 $100.74 19 May 2026 $98.37 20 May 2026 $100.88 21 May 2026 $102.01 22 May 2026 $99.19 26 May 2026 $99.98 27 May 2026 $102.21 28 May 2026 $100.41 29 May 2026 $99.56 1 Jun 2026 $94.92 2 Jun 2026 $93.23 3 Jun 2026 $95.41 4 Jun 2026 $102.79 5 Jun 2026 $97.38 8 Jun 2026 $98.03 9 Jun 2026 $105.87 10 Jun 2026 $105.77 11 Jun 2026 $109.79 12 Jun 2026 $109.78 15 Jun 2026 $112.46 16 Jun 2026 $110.64 17 Jun 2026 $111.44 18 Jun 2026 $112.86 22 Jun 2026 $115.03 23 Jun 2026 $118.96 24 Jun 2026 $122.15 25 Jun 2026 $122.63 26 Jun 2026 $121.88 29 Jun 2026 $121.63 30 Jun 2026 $122.58 1 Jul 2026 $125.17 2 Jul 2026 $131.62 6 Jul 2026 $131.50 7 Jul 2026 $140.85 8 Jul 2026 $140.07 9 Jul 2026 $137.64 10 Jul 2026 $131.42 13 Jul 2026 $129.89 14 Jul 2026 $131.27 15 Jul 2026 $135.46 16 Jul 2026 $132.02 17 Jul 2026 $140.91 20 Jul 2026 $134.27 21 Jul 2026 $138.31 22 Jul 2026 $135.44 23 Jul 2026 $135.43 24 Jul 2026 $136.11 27 Jul 2026 $135.56 28 Jul 2026 $136.84 29 Jul 2026 $133.00 30 Jul 2026 $138.64 31 Jul 2026 $136.64 3 Aug 2026 $132.28 4 Aug 2026 $135.81 5 Aug 2026 $137.32 6 Aug 2026 $146.18 7 Aug 2026 $145.87 10 Aug 2026 $150.00 11 Aug 2026 $148.29 12 Aug 2026 $152.01 13 Aug 2026 $151.42 14 Aug 2026 $155.10 17 Aug 2026 $158.62 18 Aug 2026 $157.34 19 Aug 2026 $154.94 20 Aug 2026 $150.69 21 Aug 2026 $154.32 24 Aug 2026 $154.72 25 Aug 2026 $150.59 26 Aug 2026 $151.50 27 Aug 2026 $149.50 28 Aug 2026 $144.33 31 Aug 2026 $147.75 1 Sep 2026 $146.49 2 Sep 2026 $146.08 3 Sep 2026 $148.80 4 Sep 2026 $145.72 8 Sep 2026 $145.94 9 Sep 2026 $145.09 10 Sep 2026 $145.16 11 Sep 2026 $148.18 14 Sep 2026 $147.78 15 Sep 2026 $143.40 16 Sep 2026 $142.84 17 Sep 2026 $143.70 18 Sep 2026 $143.00 21 Sep 2026 $144.98 22 Sep 2026 $145.07 23 Sep 2026 $138.70 24 Sep 2026 $137.34 25 Sep 2026 $141.86 28 Sep 2026 $142.44 29 Sep 2026 $140.97 30 Sep 2026 $140.89 1 Oct 2026 $139.19 2 Oct 2026 $140.06 5 Oct 2026 $140.63 6 Oct 2026 $138.69 7 Oct 2026 $140.92 8 Oct 2026 $139.91 9 Oct 2026 $143.73 MOLINA ARTURO MD Chief Medical Officer Sold at will $229.90K 17 Nov 2025 · at $84.77 · 3.2% of stake Ali Asif Chief Financial Officer Sold at will $708.34K 20 Jan 2026 · at $82.48 · 9.9% of stake MOLINA ARTURO MD Chief Medical Officer Sold at will $784.71K 20 Jan 2026 · at $82.48 · 8.9% of stake PATEL DINESH V PH D President and CEO Sold at will $2.84M 20 Jan 2026 · at $82.48 · 5.6% of stake MOLINA ARTURO MD Chief Medical Officer Sold at will $1.08M 23 Jan 2026 · at $82.42 · 13.5% of stake PATEL DINESH V PH D President and CEO Sold at will $1.63M 23 Jan 2026 · at $84.59 · 3.3% of stake MOLINA ARTURO MD Chief Medical Officer Sold at will $411.40K 26 Jan 2026 · at $82.28 · 5.6% of stake PATEL DINESH V PH D President and CEO Sold at will $2.09M 26 Jan 2026 · at $84.03 · 4.2% of stake PATEL DINESH V PH D President and CEO Sold at will $338.42K 27 Jan 2026 · at $83.19 · 0.7% of stake MOLINA ARTURO MD Chief Medical Officer Sold at will $410.00K 27 Jan 2026 · at $82.00 · 5.6% of stake Ali Asif Chief Financial Officer Sold at will $3.84M 27 Jan 2026 · at $83.13 · 43.4% of stake Waddill William D. Director Sold at will $1.67M 6 Feb 2026 · at $83.68 · 71.9% of stake Williams Lewis T Director Sold at will $1.48M 17 Feb 2026 · at $82.42 · 69.7% of stake PATEL DINESH V PH D President and CEO Sold at will $5.96K 24 Mar 2026 · at $101.00 · 0.0% of stake PATEL DINESH V PH D President and CEO Sold at will $5.52M 25 Mar 2026 · at $101.00 · 9.4% of stake MOLINA ARTURO MD Chief Medical Officer Sold at will $1.57M 26 Mar 2026 · at $104.79 · 15.1% of stake SELICK HAROLD E Director Sold at will $2.52M 26 Mar 2026 · at $105.00 · 28.3% of stake Ali Asif Chief Financial Officer Sold at will $2.58M 26 Mar 2026 · at $104.24 · 29.0% of stake Ali Asif Chief Financial Officer Sold at will $184.57K 20 Apr 2026 · at $105.47 · 2.9% of stake Giraudo Bryan Director Sold at will $1.20M 7 May 2026 · at $100.07 · 66.7% of stake Giraudo Bryan Director Sold at will $3.61M 7 May 2026 · at $100.14 · 56.4% of stake Giraudo Bryan Director Sold at will $513.00K 8 May 2026 · at $100.00 · 28.8% of stake Giraudo Bryan Director Sold at will $600.00K 8 May 2026 · at $100.00 · 100% of stake PATEL DINESH V PH D President and CEO Sold at will $7.51M 12 May 2026 · at $100.12 · 12.5% of stake Waddill William D. Director Sold on a plan $896.76K 29 May 2026 · at $99.64 · 53.5% of stake Waddill William D. Director Sold on a plan $969.12K 10 Jun 2026 · at $107.68 · 53.5% of stake Waddill William D. Director Sold on a plan $1.06M 23 Jun 2026 · at $117.94 · 53.5% of stake PATEL DINESH V PH D President and CEO Sold on a plan $9.81M 10 Aug 2026 · at $149.11 · 11.2% of stake PATEL DINESH V PH D President and CEO Sold on a plan $5.09M 11 Aug 2026 · at $148.52 · 6.1% of stake PATEL DINESH V PH D President and CEO Sold on a plan $7.90M 8 Sep 2026 · at $145.87 · 9.4% of stake PATEL DINESH V PH D President and CEO Sold on a plan $9.29M 9 Sep 2026 · at $146.18 · 10.8% of stake PATEL DINESH V PH D President and CEO Sold on a plan $1.05M 10 Sep 2026 · at $144.10 · 1.4% of stake Ali Asif Chief Financial Officer Sold on a plan $8.31M 30 Sep 2026 · at $141.78 · 49.8% of stake
0 buys24 sales at will9 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$46.02M
Net income
$130.15M
Free cash flow
$56.08M
Operating margin
-343.6%
Net margin
-282.8%
Return on equity
-21.2%
Return on capital
-20.0%
Debt to equity
0.02
Revenue growth, 1 yr
-89.4%
Revenue growth, 5 yr
10.0% a year

Revenue and net income

Fiscal years, as filed with the SEC · point at a year for the detail
29M -66M FY20 Fiscal year 2020 Revenue $28.63M Net income $66.15M Margin -231.1% 27M -126M FY21 Fiscal year 2021 Revenue $27.36M Net income $125.55M Margin -458.9% · growth -4.4% 27M -127M FY22 Fiscal year 2022 Revenue $26.58M Net income $127.39M Margin -479.3% · growth -2.8% 60M -79M FY23 Fiscal year 2023 Revenue $60.00M Net income $78.96M Margin -131.6% · growth +125.7% 434M 275M FY24 Fiscal year 2024 Revenue $434.43M Net income $275.19M Margin 63.3% · growth +624.1% 46M -130M FY25 Fiscal year 2025 Revenue $46.02M Net income $130.15M Margin -282.8% · growth -89.4%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
30 Sep 2026 Ali Asif
Chief Financial Officer
Sold on a plan $8.31M 49.8%
10 Sep 2026 PATEL DINESH V PH D
President and CEO
Sold on a plan $1.05M 1.4%
9 Sep 2026 PATEL DINESH V PH D
President and CEO
Sold on a plan $9.29M 10.8%
8 Sep 2026 PATEL DINESH V PH D
President and CEO
Sold on a plan $7.90M 9.4%
11 Aug 2026 PATEL DINESH V PH D
President and CEO
Sold on a plan $5.09M 6.1%
10 Aug 2026 PATEL DINESH V PH D
President and CEO
Sold on a plan $9.81M 11.2%