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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 3 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, Q4 2025

Institutional positions in Protagonist Therapeutics, Inc as of Dec 31, 2025. 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
319
+48 vs. Q3 2025
Shares held
71.0M
+458.8K (+0.7%) vs. Q3 2025
Total value
$6.18B
+$1.49B (+31.8%) vs. Q3 2025
New holders
84
99 more added
Sold out
36
104 more reduced

4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: new holders, sold out and not filed yet

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 holdersQ4 2025: 319 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 heldQ4 2025: $6.18B
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, Q4 2025

Shares, value and share of portfolio for each institution holding Protagonist Therapeutics, Inc; share changes are against Q3 2025.

Institutions holding PTGX in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Ameritas Investment Partners, Inc.4,725$412.7K0.01%−138−2.8%Reduced
Advisors Asset Management, Inc.4,704$410.8K0.01%−20.0%Reduced
Cornerstone Investment Partners, LLC4,634$404.7K0.02%+20.0%Added
Xponance, Inc.4,588$400.7K0.00%+54+1.2%Added
Ensign Peak Advisors, Inc4,486$391.8K0.00%−6,500−59.2%Reduced
Brinker Capital Investments, LLC4,396$383.9K0.00%−2,532−36.5%Reduced
US Bancorp4,395$383.9K0.00%−1,457−24.9%Reduced
O'Shaughnessy Asset Management, LLC4,369$381.6K0.00%+4,369New
Skopos Labs, Inc.4,331$380.8K0.02%+4,331New
Los Angeles Capital Management LLC4,727$368.0K0.00%+4,727New
Advisor Group Holdings, Inc.4,201$366.9K0.00%+2,810+202.0%Added
Vident Advisory, LLC4,191$366.0K0.00%−879−17.3%Reduced
New Vernon Capital Holdings II LLC4,137$361.3K0.17%−3,061−42.5%Reduced
King Wealth4,000$349.0K0.04%−2,000−33.3%Reduced
Allspring Global Investments Holdings, LLC3,985$347.4K0.00%+3,985New
Crossmark Global Holdings, Inc.3,960$345.9K0.00%−6−0.2%Reduced
CIBC World Markets Corp3,851$336.3K0.00%+3,851New
Bank of Montreal3,808$332.3K0.00%−56−1.4%Reduced
Nisa Investment Advisors, LLC3,780$330.1K0.00%−205−5.1%Reduced
Vestcor Inc3,765$329.0K0.01%−1,257−25.0%Reduced
Abacus Wealth Partners, LLC3,763$328.7K0.03%+3,763New
M&T Bank Corp3,753$327.9K0.00%+3,753New
Velan Capital Investment Management LP3,700$323.2K0.19%00.0%Unchanged
Burney Co3,680$321.4K0.01%−1,384−27.3%Reduced
Mackenzie Financial Corp3,648$317.7K0.00%−416−10.2%Reduced
JustInvest LLC3,573$312.1K0.00%+275+8.3%Added
Wealth Enhancement Advisory Services, LLC3,554$292.4K0.00%+43+1.2%Added
Rockefeller Capital Management L.P.3,292$287.5K0.00%+312+10.5%Added
LPL Financial LLC3,265$285.2K0.00%−1,729−34.6%Reduced
Camden Capital, LLC3,251$283.9K0.02%−1,284−28.3%Reduced
Royal Bank of Canada3,183$278.0K0.00%−66,813−95.5%Reduced
AlphaGrep UK Ltd3,070$268.1K0.09%+3,070New
Mirae Asset Global Investments Co., Ltd.3,038$265.3K0.00%+633+26.3%Added
Vise Technologies, Inc.2,996$261.7K0.01%+2,996New
NBC Securities, Inc.2,977$260.0K0.02%+19+0.6%Added
The PNC Financial Services Group, Inc.2,959$258.4K0.00%+221+8.1%Added
Pinnacle Wealth Planning Services, Inc.2,864$250.1K0.03%+2,864New
Evergreen Capital Management LLC2,812$245.6K0.01%+2,812New
Virtus Investment Advisers, Inc.2,790$243.7K0.07%+770+38.1%Added
New Age Alpha Advisors, LLC2,784$243.2K0.01%+2,784New
Captrust Financial Advisors2,732$238.6K0.00%−580−17.5%Reduced
GAMMA Investing LLC2,672$233.4K0.01%+1,024+62.1%Added
CIBC Asset Management Inc2,667$232.9K0.00%+2,667New
Sumitomo Mitsui Trust Holdings, Inc.2,560$223.6K0.00%+2,560New
Highland Capital Management, LLC2,462$215.0K0.01%+2,462New
Swiss Life Asset Management Ltd2,431$212.3K0.00%+2,431New
State of Wyoming2,070$180.8K0.02%+2,070New
Tower Research Capital LLC (TRC)2,047$178.8K0.00%−1,754−46.1%Reduced
Smartleaf Asset Management LLC1,727$150.7K0.01%+324+23.1%Added
Quest Partners LLC1,617$141.2K0.01%−1−0.1%Reduced
KBC Group NV1,574$137.0K0.00%00.0%Unchanged
Quadrant Capital Group LLC1,467$128.1K0.00%+115+8.5%Added
Covestor Ltd1,437$125.0K0.07%+447+45.2%Added
GF Fund Management Co. Ltd.1,227$107.2K0.00%−111−8.3%Reduced
Truvestments Capital LLC1,161$101.4K0.02%+439+60.8%Added
Global Retirement Partners, LLC1,044$91.2K0.00%+728+230.4%Added
Canton Hathaway, LLC1,000$87.3K0.02%+1,000New
Hantz Financial Services, Inc.951$83.0K0.00%+656+222.4%Added
CFG Wealth Management Services, Inc.602$52.6K0.05%+602New
CWM, LLC556$49.0K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC559$48.8K0.00%+19+3.5%Added
Clear Street Markets LLC500$43.7K0.01%+500New
Salomon & Ludwin, LLC436$36.7K0.00%−6−1.4%Reduced
Sterling Capital Management LLC378$33.0K0.00%+237+168.1%Added
Umb Bank N A333$29.1K0.00%+75+29.1%Added
Fifth Third Bancorp327$28.6K0.00%+20+6.5%Added
Greenline Wealth Management LLC304$26.5K0.03%+304New
Farther Finance Advisors, LLC297$25.9K0.00%+156+110.6%Added
Assetmark, Inc285$24.9K0.00%+5+1.8%Added
Sound Income Strategies, LLC284$23.3K0.00%+284New
Allworth Financial LP255$22.3K0.00%+8+3.2%Added
Clearstead Advisors, LLC222$19.4K0.00%+22+11.0%Added
Daiwa Securities Group Inc.190$17.0K0.00%00.0%Unchanged
Kemnay Advisory Services Inc.181$15.8K0.00%+181New
Larson Financial Group LLC171$14.9K0.00%+17+11.0%Added
Signaturefd, LLC163$14.2K0.00%+14+9.4%Added
Matrix Trust Co143$12.0K0.00%+143New
Massmutual Trust Co FSB119$10.4K0.00%00.0%Unchanged
Bare Financial Services, Inc110$9.61K0.00%+76+223.5%Added
Parallel Advisors, LLC109$9.52K0.00%+7+6.9%Added
SageView Advisory Group, LLC106$9.26K0.00%+106New
Danske Bank A/S100$8.73K0.00%00.0%Unchanged
MAI Capital Management97$8.47K0.00%+11+12.8%Added
WPG Advisers, LLC96$8.38K0.01%+18+23.1%Added
Rothschild Investment LLC86$7.51K0.00%+1+1.2%Added
Parkside Financial Bank & Trust84$7.34K0.00%+39+86.7%Added
Brown Brothers Harriman & Co81$7.08K0.00%00.0%Unchanged
Bell Investment Advisors, Inc81$7.08K0.00%00.0%Unchanged
Annis Gardner Whiting Capital Advisors, LLC76$6.64K0.00%00.0%Unchanged
SBI Securities Co., Ltd.70$6.11K0.00%+70New
Sankala Group LLC60$5.53K0.00%+60New
Raffa Wealth Management, LLC60$5.24K0.00%00.0%Unchanged
Jones Financial Companies LLLP46$4.02K0.00%+26+130.0%Added
Torren Management, LLC39$3.41K0.00%+39New
Huntington National Bank35$3.06K0.00%−4−10.3%Reduced
Wolff Wiese Magana LLC35$3.06K0.00%00.0%Unchanged
Farmers & Merchants Investments Inc35$3.06K0.00%00.0%Unchanged
Marquette Asset Management, LLC28$2.45K0.00%00.0%Unchanged
Versant Capital Management, Inc27$2.36K0.00%00.0%Unchanged
Picton Mahoney Asset Management25$2.18K0.00%00.0%Unchanged