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Protagonist Therapeutics, Inc

PTGX
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001377121

In the last 90 days, Protagonist Therapeutics, Inc insiders filed 0 open-market purchases and 2 sales; 346 institutions reported holding it in 13F filings for Q2 2026, worth $9.30B in total; Duquesne Family Office is the only superinvestor holding it.

13F holders, Q1 2021

Institutional positions in Protagonist Therapeutics, Inc as of Mar 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
127
No complete 13F data for Q4 2020
Shares held
44.3M
No complete 13F data for Q4 2020
Total value
$1.15B
No complete 13F data for Q4 2020

Holders and value by quarter

Institutions reporting PTGX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2021: 127 institutions
Q1 2021: 127 institutionsQ2 2021: 139 institutionsQ3 2021: 132 institutionsQ4 2021: 149 institutionsQ1 2022: 140 institutionsQ2 2022: 131 institutionsQ3 2022: 133 institutionsQ4 2022: 137 institutionsQ1 2023: 138 institutionsQ2 2023: 167 institutionsQ3 2023: 144 institutionsQ4 2023: 157 institutionsQ1 2024: 185 institutionsQ2 2024: 188 institutionsQ3 2024: 240 institutionsQ4 2024: 241 institutionsQ1 2025: 275 institutionsQ2 2025: 274 institutionsQ3 2025: 275 institutionsQ4 2025: 319 institutionsQ1 2026: 322 institutionsQ2 2026: 346 institutions
Value heldQ1 2021: $1.15B
Q1 2021: $1.15BQ2 2021: $2.16BQ3 2021: $820.8MQ4 2021: $1.68BQ1 2022: $1.19BQ2 2022: $422.1MQ3 2022: $398.9MQ4 2022: $533.3MQ1 2023: $1.22BQ2 2023: $1.57BQ3 2023: $945.9MQ4 2023: $1.32BQ1 2024: $1.73BQ2 2024: $2.05BQ3 2024: $2.78BQ4 2024: $2.44BQ1 2025: $3.15BQ2 2025: $3.92BQ3 2025: $4.70BQ4 2025: $6.18BQ1 2026: $8.31BQ2 2026: $9.30B
Institutions holding PTGX and their total value by quarter
QuarterHoldersValue
Q2 2026346$9.30B
Q1 2026322$8.31B
Q4 2025319$6.18B
Q3 2025275$4.70B
Q2 2025274$3.92B
Q1 2025275$3.15B
Q4 2024241$2.44B
Q3 2024240$2.78B
Q2 2024188$2.05B
Q1 2024185$1.73B
Q4 2023157$1.32B
Q3 2023144$945.9M
Q2 2023167$1.57B
Q1 2023138$1.22B
Q4 2022137$533.3M
Q3 2022133$398.9M
Q2 2022131$422.1M
Q1 2022140$1.19B
Q4 2021149$1.68B
Q3 2021132$820.8M
Q2 2021139$2.16B
Q1 2021127$1.15B

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Protagonist Therapeutics, Inc.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding PTGX in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Charles Schwab Investment Management Inc261,587$6.78M0.00%––
Opaleye Management Inc.297,000$7.69M1.13%––
Two Sigma Advisers, LP346,675$8.98M0.02%––
Commodore Capital LP349,600$9.05M3.61%––
Obermeyer Wood Investment Counsel, LLLP386,072$10.0M0.61%––
Goldman Sachs Group Inc414,134$10.7M0.00%––
Northern Trust Corp415,513$10.8M0.00%––
Rothschild & Co Asset Management US Inc.434,249$11.2M0.14%––
JPMorgan Chase & Co584,897$15.1M0.00%––
Adage Capital Partners GP, L.L.C.600,045$15.5M0.03%––
Geode Capital Management, LLC645,679$16.7M0.00%––
Sofinnova Investments, Inc.654,900$17.0M1.07%––
Dimensional Fund Advisors LP656,101$17.0M0.01%––
Novo Holdings A/S867,724$22.5M0.93%––
Price T Rowe Associates Inc913,590$23.7M0.00%––
Point72 Asset Management, L.P.942,300$24.4M0.12%––
Deerfield Management Company, L.P. (Series C)1,258,790$32.6M0.69%––
Baker Bros. Advisors LP1,436,192$37.2M0.16%––
State Street Corp1,712,683$44.4M0.00%––
Vanguard Group Inc2,140,547$55.4M0.00%––
Farallon Capital Management, L.L.C.2,425,000$62.8M0.33%––
Johnson & Johnson Innovation - JJDC, Inc.2,449,183$63.4M8.22%––
Consonance Capital Management LP2,709,709$70.2M7.48%––
BlackRock Inc.3,001,629$77.7M0.00%––
RTW Investments, LP3,507,390$90.8M1.42%––
BVF Inc3,959,451$102.5M3.84%––
FMR LLC6,571,227$170.2M0.01%––