PTGX
Protagonist Therapeutics, Inc.$110.33+0.29 (+0.26%)Prev Close$109.79·MCap$6.81B·P/E—·Vol310.3K·Yield—
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
23
$50.13M
◆
Net Activity
Net Seller
$50.13M
●
Active Insiders
7
last 12 mo
Over the past 12 months, insider activity at Protagonist Therapeutics, Inc. (PTGX) has been exclusively selling, with 0 insider purchases totaling $0.00 and 23 insider sales totaling $50.13M. The most recent insider transaction was by Waddill William D. (director), who sold $969.1K worth of shares on Jun 11, 2026. Protagonist Therapeutics, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $6.81B.
PTGX Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Jun 11, 2026 | Waddill William D. | director | Sell | 9,000 | $107.68 | $969.1K | 7,825-53% |
| Jun 1, 2026 | Waddill William D. | director | Sell | 9,000 | $99.64 | $896.8K | 7,825-53% |
| May 12, 2026 | PATEL DINESH V PH D | director, officer: President and CEO | Sell | 75,000 | $100.12 | $7.51M | 523,478 |
| May 11, 2026 | Giraudo Bryan | director | Sell | 59,130 | $100.10 | $5.92M | 27,825-68% |
| Apr 21, 2026 | Ali Asif | officer: Chief Financial Officer | Sell | 1,750 | $105.47 | $184.6K | 59,003 |
| Mar 27, 2026 | SELICK HAROLD E | director | Sell | 24,000 | $105.00 | $2.52M | 60,845-28% |
| Mar 27, 2026 | Ali Asif | officer: Chief Financial Officer | Sell | 24,765 | $104.24 | $2.58M | 60,753-29% |
| Mar 27, 2026 | MOLINA ARTURO MD | officer: Chief Medical Officer | Sell | 15,000 | $104.79 | $1.57M | 84,115 |
| Mar 25, 2026 | PATEL DINESH V PH D | director, officer: President and CEO | Sell | 54,641 | $101.00 | $5.52M | 524,938 |
| Feb 17, 2026 | Williams Lewis T | Director | Sell | 18,000 | $82.42 | $1.48M | 0 |
| Feb 6, 2026 | Waddill William D. | director | Sell | 20,000 | $83.68 | $1.67M | 7,825-72% |
| Jan 27, 2026 | Ali Asif | officer: Chief Financial Officer | Sell | 46,203 | $83.13 | $3.84M | 78,523-37% |
| Jan 27, 2026 | MOLINA ARTURO MD | officer: Chief Medical Officer | Sell | 23,151 | $82.30 | $1.91M | 84,115 |
| Jan 27, 2026 | PATEL DINESH V PH D | director, officer: President and CEO | Sell | 48,273 | $84.18 | $4.06M | 574,505 |
| Jan 21, 2026 | Ali Asif | officer: Chief Financial Officer | Sell | 8,588 | $82.48 | $708.3K | 78,077 |
| Jan 21, 2026 | MOLINA ARTURO MD | officer: Chief Medical Officer | Sell | 9,514 | $82.48 | $784.7K | 97,266 |
| Jan 21, 2026 | PATEL DINESH V PH D | director, officer: President and CEO | Sell | 34,438 | $82.48 | $2.84M | 580,505 |
| Nov 19, 2025 | MOLINA ARTURO MD | Chief Medical Officer | Sell | 2,712 | $84.77 | $229.9K | 81,180 |
| Oct 14, 2025 | Waddill William D. | Director | Sell | 12,000 | $81.62 | $979.5K | 13,130-48% |
| Sep 24, 2025 | Waddill William D. | Director | Sell | 4,000 | $64.25 | $257.0K | 5,130-44% |
| Aug 29, 2025 | Waddill William D. | Director | Sell | 4,000 | $59.25 | $237.0K | 9,130-30% |
| Jul 28, 2025 | PATEL DINESH V PH D | President and CEO | Sell | 10,415 | $54.78 | $570.5K | 520,603 |
| Jul 23, 2025 | PATEL DINESH V PH D | President and CEO | Sell | 52,444 | $54.92 | $2.88M | 570,603 |
| Jun 11, 2025 | MOLINA ARTURO MD | Chief Medical Officer | Sell | 20,000 | $56.27 | $1.13M | 83,892 |
| Apr 23, 2025 | Ali Asif | Chief Financial Officer | Sell | 1,756 | $46.00 | $80.8K | 61,065 |
| Mar 19, 2025 | Waddill William D. | Director | Sell | 4,000 | $54.25 | $217.0K | 13,130 |
| Mar 14, 2025 | Ali Asif | Chief Financial Officer | Sell | 24,903 | $58.73 | $1.46M | 62,821-28% |
| Mar 14, 2025 | MOLINA ARTURO MD | Chief Medical Officer | Sell | 30,514 | $55.74 | $1.70M | 83,892-27% |
| Feb 20, 2025 | PATEL DINESH V PH D | President and CEO | Sell | 5,359 | $38.18 | $204.6K | 540,260 |
| Nov 27, 2024 | Gupta Suneel | Chief Development Officer | Sell | 122,628 | $45.96 | $5.64M | 266,983-31% |
| Nov 27, 2024 | MOLINA ARTURO MD | Chief Medical Officer | Sell | 31,529 | $44.86 | $1.41M | 46,444-40% |
| Nov 27, 2024 | PATEL DINESH V PH D | President and CEO | Sell | 100,000 | $46.81 | $4.68M | 435,208 |
| Nov 19, 2024 | MOLINA ARTURO MD | Chief Medical Officer | Sell | 1,906 | $40.98 | $78.1K | 46,444 |
| Sep 13, 2024 | Ali Asif | Chief Financial Officer | Sell | 14,203 | $44.49 | $631.9K | 34,960-29% |
| Sep 12, 2024 | Waddill William D. | Director | Sell | 8,000 | $45.00 | $360.0K | 12,000-40% |
| Jul 26, 2024 | Waddill William D. | Director | Sell | 8,000 | $40.00 | $320.0K | 12,000-40% |
| Jun 11, 2024 | PATEL DINESH V PH D | President and CEO | Sell | 35,000 | $35.19 | $1.23M | 515,415 |
| Jun 11, 2024 | Waddill William D. | Director | Sell | 8,000 | $35.00 | $280.0K | 12,000-40% |
| Apr 19, 2024 | Ali Asif | Chief Financial Officer | Sell | 1,234 | $25.11 | $31.0K | 37,163 |
| Apr 2, 2024 | PATEL DINESH V PH D | President and CEO | Sell | 25,000 | $28.31 | $707.8K | 549,590 |
| Mar 1, 2024 | Ali Asif | Chief Financial Officer | Sell | 24,187 | $31.60 | $764.4K | 42,734-36% |
| Mar 1, 2024 | PATEL DINESH V PH D | President and CEO | Sell | 30,000 | $31.62 | $948.6K | 574,590 |
| Mar 1, 2024 | Waddill William D. | Director | Sell | 12,975 | $31.34 | $406.6K | 12,000-52% |
| Jan 11, 2024 | Gupta Suneel | Chief Development Officer | Sell | 5,000 | $25.00 | $125.0K | 187,567 |
| Jan 4, 2024 | MOLINA ARTURO MD | Chief Medical Officer | Sell | 1,848 | $16.24 | $30.0K | 22,527 |
| Dec 15, 2023 | PATEL DINESH V PH D | President and CEO | Sell | 75,000 | $20.08 | $1.51M | 534,347 |
| Dec 23, 2021 | PATEL DINESH V PH D | President and CEO | Sell | 15,000 | $32.14 | $482.2K | 477,158 |
| Aug 19, 2021 | Liu David Y | Chief Scientific Officer | Sell | 14,779 | $47.56 | $702.9K | 58,254 |
PTGX Insider Buying Activity
The following table shows recent insider purchases of Protagonist Therapeutics, Inc. (PTGX) stock reported via SEC Form 4 filings.
No insider buying activity found for PTGX in the last 12 months.
PTGX Insider Selling Activity
The following table shows recent insider sales of Protagonist Therapeutics, Inc. (PTGX) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Jun 11, 2026 | Waddill William D. | director | Sell | 9,000 | $107.68 | $969.1K | 7,825-53% |
| Jun 1, 2026 | Waddill William D. | director | Sell | 9,000 | $99.64 | $896.8K | 7,825-53% |
| May 12, 2026 | PATEL DINESH V PH D | director, officer: President and CEO | Sell | 75,000 | $100.12 | $7.51M | 523,478 |
| May 11, 2026 | Giraudo Bryan | director | Sell | 59,130 | $100.10 | $5.92M | 27,825-68% |
| Apr 21, 2026 | Ali Asif | officer: Chief Financial Officer | Sell | 1,750 | $105.47 | $184.6K | 59,003 |
| Mar 27, 2026 | SELICK HAROLD E | director | Sell | 24,000 | $105.00 | $2.52M | 60,845-28% |
| Mar 27, 2026 | Ali Asif | officer: Chief Financial Officer | Sell | 24,765 | $104.24 | $2.58M | 60,753-29% |
| Mar 27, 2026 | MOLINA ARTURO MD | officer: Chief Medical Officer | Sell | 15,000 | $104.79 | $1.57M | 84,115 |
| Mar 25, 2026 | PATEL DINESH V PH D | director, officer: President and CEO | Sell | 54,641 | $101.00 | $5.52M | 524,938 |
| Feb 17, 2026 | Williams Lewis T | Director | Sell | 18,000 | $82.42 | $1.48M | 0 |
| Feb 6, 2026 | Waddill William D. | director | Sell | 20,000 | $83.68 | $1.67M | 7,825-72% |
| Jan 27, 2026 | Ali Asif | officer: Chief Financial Officer | Sell | 46,203 | $83.13 | $3.84M | 78,523-37% |
| Jan 27, 2026 | MOLINA ARTURO MD | officer: Chief Medical Officer | Sell | 23,151 | $82.30 | $1.91M | 84,115 |
| Jan 27, 2026 | PATEL DINESH V PH D | director, officer: President and CEO | Sell | 48,273 | $84.18 | $4.06M | 574,505 |
| Jan 21, 2026 | Ali Asif | officer: Chief Financial Officer | Sell | 8,588 | $82.48 | $708.3K | 78,077 |
| Jan 21, 2026 | MOLINA ARTURO MD | officer: Chief Medical Officer | Sell | 9,514 | $82.48 | $784.7K | 97,266 |
| Jan 21, 2026 | PATEL DINESH V PH D | director, officer: President and CEO | Sell | 34,438 | $82.48 | $2.84M | 580,505 |
| Nov 19, 2025 | MOLINA ARTURO MD | Chief Medical Officer | Sell | 2,712 | $84.77 | $229.9K | 81,180 |
| Oct 14, 2025 | Waddill William D. | Director | Sell | 12,000 | $81.62 | $979.5K | 13,130-48% |
| Sep 24, 2025 | Waddill William D. | Director | Sell | 4,000 | $64.25 | $257.0K | 5,130-44% |
| Aug 29, 2025 | Waddill William D. | Director | Sell | 4,000 | $59.25 | $237.0K | 9,130-30% |
| Jul 28, 2025 | PATEL DINESH V PH D | President and CEO | Sell | 10,415 | $54.78 | $570.5K | 520,603 |
| Jul 23, 2025 | PATEL DINESH V PH D | President and CEO | Sell | 52,444 | $54.92 | $2.88M | 570,603 |
| Jun 11, 2025 | MOLINA ARTURO MD | Chief Medical Officer | Sell | 20,000 | $56.27 | $1.13M | 83,892 |
| Apr 23, 2025 | Ali Asif | Chief Financial Officer | Sell | 1,756 | $46.00 | $80.8K | 61,065 |
| Mar 19, 2025 | Waddill William D. | Director | Sell | 4,000 | $54.25 | $217.0K | 13,130 |
| Mar 14, 2025 | Ali Asif | Chief Financial Officer | Sell | 24,903 | $58.73 | $1.46M | 62,821-28% |
| Mar 14, 2025 | MOLINA ARTURO MD | Chief Medical Officer | Sell | 30,514 | $55.74 | $1.70M | 83,892-27% |
| Feb 20, 2025 | PATEL DINESH V PH D | President and CEO | Sell | 5,359 | $38.18 | $204.6K | 540,260 |
| Nov 27, 2024 | Gupta Suneel | Chief Development Officer | Sell | 122,628 | $45.96 | $5.64M | 266,983-31% |
| Nov 27, 2024 | MOLINA ARTURO MD | Chief Medical Officer | Sell | 31,529 | $44.86 | $1.41M | 46,444-40% |
| Nov 27, 2024 | PATEL DINESH V PH D | President and CEO | Sell | 100,000 | $46.81 | $4.68M | 435,208 |
| Nov 19, 2024 | MOLINA ARTURO MD | Chief Medical Officer | Sell | 1,906 | $40.98 | $78.1K | 46,444 |
| Sep 13, 2024 | Ali Asif | Chief Financial Officer | Sell | 14,203 | $44.49 | $631.9K | 34,960-29% |
| Sep 12, 2024 | Waddill William D. | Director | Sell | 8,000 | $45.00 | $360.0K | 12,000-40% |
| Jul 26, 2024 | Waddill William D. | Director | Sell | 8,000 | $40.00 | $320.0K | 12,000-40% |
| Jun 11, 2024 | PATEL DINESH V PH D | President and CEO | Sell | 35,000 | $35.19 | $1.23M | 515,415 |
| Jun 11, 2024 | Waddill William D. | Director | Sell | 8,000 | $35.00 | $280.0K | 12,000-40% |
| Apr 19, 2024 | Ali Asif | Chief Financial Officer | Sell | 1,234 | $25.11 | $31.0K | 37,163 |
| Apr 2, 2024 | PATEL DINESH V PH D | President and CEO | Sell | 25,000 | $28.31 | $707.8K | 549,590 |
| Mar 1, 2024 | Ali Asif | Chief Financial Officer | Sell | 24,187 | $31.60 | $764.4K | 42,734-36% |
| Mar 1, 2024 | PATEL DINESH V PH D | President and CEO | Sell | 30,000 | $31.62 | $948.6K | 574,590 |
| Mar 1, 2024 | Waddill William D. | Director | Sell | 12,975 | $31.34 | $406.6K | 12,000-52% |
| Jan 11, 2024 | Gupta Suneel | Chief Development Officer | Sell | 5,000 | $25.00 | $125.0K | 187,567 |
| Jan 4, 2024 | MOLINA ARTURO MD | Chief Medical Officer | Sell | 1,848 | $16.24 | $30.0K | 22,527 |
| Dec 15, 2023 | PATEL DINESH V PH D | President and CEO | Sell | 75,000 | $20.08 | $1.51M | 534,347 |
| Dec 23, 2021 | PATEL DINESH V PH D | President and CEO | Sell | 15,000 | $32.14 | $482.2K | 477,158 |
| Aug 19, 2021 | Liu David Y | Chief Scientific Officer | Sell | 14,779 | $47.56 | $702.9K | 58,254 |
PTGX Insiders
Similar Stocks to PTGX
VRTX
Vertex Pharmaceuticals Incorporated
$445.21+0.04%
$113.41B
REGN
Regeneron Pharmaceuticals, Inc.
$614.20+0.45%
$65.47B
ALNY
Alnylam Pharmaceuticals, Inc.
$283.35-2.09%
$40.46B
RVMD
Revolution Medicines, Inc.
$153.65+2.96%
$31.73B
UTHR
United Therapeutics Corporation
$542.43-0.54%
$23.12B
INSM
Insmed Incorporated
$98.28+1.64%
$20.41B
INCY
Incyte Corporation
$108.85+0.95%
$20.11B
MRNA
Moderna, Inc.
$50.18+1.06%
$18.89B