PTGXNasdaq

Protagonist Therapeutics, Inc

Alert me on PTGX

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

Oct 3 Sale Ali Asif Insider

1 week

+3.0%S&P +0.4%

1 month

Result in7 trading days

3 months

Result in49 trading days

6 months

Result in112 trading days

Sep 11 Sale PATEL DINESH V PH D Insider

1 week

−3.5%S&P −0.1%

1 month

−2.2%S&P +2.1%

3 months

Result in33 trading days

6 months

Result in96 trading days

Aug 13 Sale PATEL DINESH V PH D Insider

1 week

−0.5%S&P −2.0%

1 month

−2.4%S&P −2.2%

3 months

Result in13 trading days

6 months

Result in76 trading days

Jun 26 Sale Waddill William D. Insider

1 week

+7.9%S&P +3.1%

1 month

+12.3%S&P +1.6%

3 months

+16.4%S&P +6.1%

6 months

Result in43 trading days

Jun 12 Sale Waddill William D. Insider

1 week

+4.8%S&P +0.6%

1 month

+23.4%S&P +2.0%

3 months

+34.6%S&P +2.8%

6 months

Result in34 trading days

Show all 24

Jun 2 Sale Waddill William D. Insider

1 week

+13.6%S&P −3.0%

1 month

+41.2%S&P −1.7%

3 months

+57.1%S&P +0.5%

6 months

Result in26 trading days

May 13 Sale PATEL DINESH V PH D Insider

1 week

−2.9%S&P −0.1%

1 month

+5.7%S&P −0.1%

3 months

+45.8%S&P +5.1%

6 months

Result in13 trading days

May 12 Sale Giraudo Bryan Insider

1 week

−1.6%S&P −0.6%

1 month

+9.8%S&P −0.1%

3 months

+52.1%S&P +4.9%

6 months

Result in12 trading days

Apr 22 Sale Ali Asif Insider

1 week

−6.7%S&P +0.1%

1 month

−3.4%S&P +4.4%

3 months

+28.3%S&P +4.1%

6 months

+30.8%S&P +9.2%

Mar 28 Sale MOLINA ARTURO MD Insider

1 week

+3.9%S&P +4.3%

1 month

−1.4%S&P +12.6%

3 months

+22.7%S&P +18.5%

6 months

+41.2%S&P +21.5%

Mar 28 Sale SELICK HAROLD E Insider

1 week

+3.9%S&P +4.3%

1 month

−1.4%S&P +12.6%

3 months

+22.7%S&P +18.5%

6 months

+41.2%S&P +21.5%

Mar 28 Sale Ali Asif Insider

1 week

+3.9%S&P +4.3%

1 month

−1.4%S&P +12.6%

3 months

+22.7%S&P +18.5%

6 months

+41.2%S&P +21.5%

Mar 26 Sale PATEL DINESH V PH D Insider

1 week

+1.6%S&P +1.7%

1 month

−3.6%S&P +10.9%

3 months

+19.3%S&P +13.3%

6 months

+38.8%S&P +20.2%

Feb 19 Sale Williams Lewis T Insider

1 week

+6.4%S&P +0.7%

1 month

+19.0%S&P −5.0%

3 months

+21.4%S&P +8.6%

6 months

+81.4%S&P +12.0%

Feb 7 Sale Waddill William D. Insider

1 week

−1.0%S&P −1.6%

1 month

+15.8%S&P −2.5%

3 months

+24.2%S&P +6.8%

6 months

+78.0%S&P +11.6%

Jan 28 Sale Ali Asif Insider

1 week

+1.9%S&P −1.3%

1 month

+12.6%S&P −1.4%

3 months

+20.5%S&P +2.6%

6 months

+69.6%S&P +7.2%

Jan 28 Sale PATEL DINESH V PH D Insider

1 week

+1.9%S&P −1.3%

1 month

+12.6%S&P −1.4%

3 months

+20.5%S&P +2.6%

6 months

+69.6%S&P +7.2%

Jan 28 Sale MOLINA ARTURO MD Insider

1 week

+1.9%S&P −1.3%

1 month

+12.6%S&P −1.4%

3 months

+20.5%S&P +2.6%

6 months

+69.6%S&P +7.2%

Jan 22 Sale Ali Asif Insider

1 week

−6.0%S&P +0.7%

1 month

+2.1%S&P −1.0%

3 months

+21.0%S&P +3.1%

6 months

+60.5%S&P +7.8%

Jan 22 Sale MOLINA ARTURO MD Insider

1 week

−6.0%S&P +0.7%

1 month

+2.1%S&P −1.0%

3 months

+21.0%S&P +3.1%

6 months

+60.5%S&P +7.8%

Jan 22 Sale PATEL DINESH V PH D Insider

1 week

−6.0%S&P +0.7%

1 month

+2.1%S&P −1.0%

3 months

+21.0%S&P +3.1%

6 months

+60.5%S&P +7.8%

Nov 20, 2025 Sale MOLINA ARTURO MD Insider

1 week

+6.9%S&P +4.7%

1 month

+3.8%S&P +5.3%

3 months

+3.8%S&P +5.6%

6 months

+18.7%S&P +15.7%

Oct 15, 2025 Sale Waddill William D. Insider

1 week

−5.4%S&P +0.4%

1 month

+7.2%S&P +1.0%

3 months

+9.1%S&P +4.4%

6 months

+36.4%S&P +7.4%

Sep 25, 2025 Sale Waddill William D. Insider

1 week

+0.4%S&P +1.7%

1 month

+15.7%S&P +2.9%

3 months

+37.3%S&P +5.2%

6 months

+53.0%S&P −3.1%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for PTGX

77 held · newest 577 held · newest 2

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See all 77 filings for PTGX

Aeon news and offers by email

New sources, new features and offers like our founding price. A few times a month at most. Stop any time.

Signal history

No signal for this ticker yet. A signal is written when insider buying here scores one dot or more.

Stakes

Jun 30, 2026 Schedule 13G, amended

Farallon Capital Management, L.L.C.: 10%, 6,433,119 shares

Jun 30, 2026 Schedule 13G

STATE STREET CORPORATION: 5.2%, 3,321,554 shares

Mar 31, 2026 Schedule 13G

STATE STREET CORPORATION: 4.9%, 3,116,804 shares

Mar 31, 2026 Schedule 13G

Vanguard Capital Management: 5.1%, 3,250,003 shares

Mar 31, 2026 Schedule 13G

Vanguard Portfolio Management: 5.5%, 3,533,015 shares

Mar 13, 2026 Schedule 13G, amended

The Vanguard Group: 0%, 0 shares

Dec 31, 2025 Schedule 13G, amended

RTW Investments, LP: 8.1%, 5,059,053 shares

Dec 31, 2025 Schedule 13G

Wellington Management Group LLP: 5.1%, 3,171,423 shares

Dec 31, 2025 Schedule 13G, amended

Dapice Joshua J.: 10%, 6,248,013 shares

Dec 31, 2025 Schedule 13G, amended

The Vanguard Group: 8.7%, 5,413,690 shares

Sep 30, 2025 Schedule 13G, amended

BVF PARTNERS L P/IL: 4.1%, 2,560,916 shares

Sep 30, 2025 Schedule 13G, amended

Deep Track Capital, LP: 2.8%, 1,715,691 shares

Sep 30, 2025 Schedule 13G, amended

BlackRock, Inc.: 13.8%, 8,575,669 shares

Schedule 13D is filed within 5 business days of crossing 5 percent by an investor who may seek to influence the company. Schedule 13G is filed by a passive holder, and a large institution has up to 45 days after the quarter end.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters

No lobbying reports on file.