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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, Q2 2025

Institutional positions in Protagonist Therapeutics, Inc as of Jun 30, 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
274
+3 vs. Q1 2025
Shares held
71.0M
+5.66M (+8.7%) vs. Q1 2025
Total value
$3.92B
+$774.8M (+24.6%) vs. Q1 2025
New holders
52
120 more added
Sold out
49
76 more reduced

4 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2025: 274 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 heldQ2 2025: $3.92B
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, Q2 2025

Shares, value and share of portfolio for each institution holding Protagonist Therapeutics, Inc; share changes are against Q1 2025.

Institutions holding PTGX in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Knott David M Jr80,000$4.42M2.00%+4,000+5.3%Added
Rafferty Asset Management, LLC80,543$4.45M0.01%+36,286+82.0%Added
Checkpoint Capital L.P.81,311$4.49M2.09%−93,873−53.6%Reduced
EFG Asset Management (North America) Corp.81,726$4.52M0.64%+10,592+14.9%Added
Franklin Resources Inc82,579$4.56M0.00%+3,535+4.5%Added
Skandinaviska Enskilda Banken AB (publ)82,750$4.57M0.02%−166,200−66.8%Reduced
Victory Capital Management Inc90,932$5.03M0.00%−11,479−11.2%Reduced
Assenagon Asset Management S.A.91,875$5.08M0.01%+47,003+104.7%Added
Neuberger Berman Group LLC93,582$5.17M0.00%+93,582New
Swiss National Bank93,800$5.18M0.00%+6,900+7.9%Added
Manufacturers Life Insurance Company, The94,801$5.24M0.00%−26,049−21.6%Reduced
Opaleye Management Inc.105,000$5.80M1.17%00.0%Unchanged
Deutsche Bank AG111,164$6.14M0.00%+45,469+69.2%Added
First Trust Advisors LP113,907$6.30M0.01%+32,221+39.4%Added
Capitolis Liquid Global Markets LLC116,100$6.42M0.05%+116,100New
TD Asset Management Inc116,332$6.43M0.01%−53,600−31.5%Reduced
Segall Bryant & Hamill, LLC120,159$6.64M0.09%+120,159New
Nuveen, LLC129,511$7.16M0.00%−23,260−15.2%Reduced
Kennedy Capital Management, Inc.134,890$7.46M0.18%−2,614−1.9%Reduced
Nan Fung Trinity (HK) Ltd135,050$7.46M0.89%+135,050New
Great Lakes Advisors, LLC139,391$7.70M0.06%−12,927−8.5%Reduced
Panagora Asset Management Inc148,790$8.22M0.04%−1,118−0.7%Reduced
Legal & General Group Plc166,181$9.18M0.00%+18,074+12.2%Added
Ameriprise Financial Inc168,371$9.31M0.00%+31,529+23.0%Added
Moody Aldrich Partners LLC170,570$9.43M1.82%+7,087+4.3%Added
Rhumbline Advisers173,028$9.56M0.01%+10,963+6.8%Added
Renaissance Technologies LLC173,134$9.57M0.01%−150,433−46.5%Reduced
Dimensional Fund Advisors LP180,050$9.95M0.00%+58,496+48.1%Added
Public Sector Pension Investment Board211,281$11.7M0.05%+22,250+11.8%Added
Barclays PLC212,112$11.7M0.00%+100,680+90.4%Added
UBS Asset Management Americas Inc243,373$13.5M0.00%+34,617+16.6%Added
Eversept Partners, LP277,316$15.3M1.54%−269,800−49.3%Reduced
Voya Investment Management LLC280,354$15.5M0.02%+220,676+369.8%Added
Raymond James Financial Inc311,986$17.2M0.01%+13,159+4.4%Added
Principal Financial Group Inc330,134$18.2M0.01%−16,961−4.9%Reduced
Bank of New York Mellon Corp388,082$21.4M0.00%+11,219+3.0%Added
Mangrove Partners395,383$21.9M2.35%00.0%Unchanged
Jupiter Asset Management Ltd405,644$22.4M0.19%+237,581+141.4%Added
Affinity Asset Advisors, LLC440,000$24.3M3.60%+40,000+10.0%Added
683 Capital Management, LLC445,000$24.6M2.49%−55,000−11.0%Reduced
Toronto Dominion Bank445,440$24.6M0.05%00.0%Unchanged
JPMorgan Chase & Co445,692$24.6M0.00%−23,207−4.9%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.446,026$24.7M0.06%+66,377+17.5%Added
Janus Henderson Group PLC446,828$24.7M0.01%+425,374+1,982.7%Added
Holocene Advisors, LP530,326$29.3M0.07%+530,326New
FMR LLC538,432$29.8M0.00%+60,089+12.6%Added
Charles Schwab Investment Management Inc575,364$31.8M0.01%+17,646+3.2%Added
Northern Trust Corp615,066$34.0M0.00%−24,441−3.8%Reduced
Invesco Ltd.721,680$39.9M0.01%−137,968−16.0%Reduced
Lynx1 Capital Management LP733,014$40.5M11.70%00.0%Unchanged
Pictet Asset Management Holding SA751,977$41.6M0.04%+456,384+154.4%Added
Driehaus Capital Management LLC757,710$41.9M0.34%+522,637+222.3%Added
Goldman Sachs Group Inc777,307$43.0M0.01%+221,756+39.9%Added
American Century Companies Inc813,995$45.0M0.02%+128,171+18.7%Added
Jefferies Financial Group Inc.824,019$45.5M0.75%+192,126+30.4%Added
Bank of America Corp851,832$47.1M0.00%+380,087+80.6%Added
Morgan Stanley868,963$48.0M0.00%+371,858+74.8%Added
Price T Rowe Associates Inc936,703$51.8M0.01%−385,303−29.1%Reduced
Woodline Partners LP946,884$52.3M0.28%+49,185+5.5%Added
ADAR1 Capital Management, LLC948,069$52.4M8.51%+8,400+0.9%Added
Wellington Management Group LLP1,037,738$57.4M0.01%+50,368+5.1%Added
Perceptive Advisors LLC1,074,448$59.4M2.23%−16,823−1.5%Reduced
Commodore Capital LP1,075,000$59.4M4.19%+1,075,000New
Adage Capital Partners GP, L.L.C.1,092,262$60.4M0.10%+748,758+218.0%Added
Geode Capital Management, LLC1,444,230$79.8M0.01%+20,671+1.5%Added
Johnson & Johnson2,449,183$136.4M40.83%00.0%Unchanged
UBS Group AG2,501,251$138.2M0.03%+2,148,380+608.8%Added
State Street Corp3,207,543$177.3M0.01%+500,924+18.5%Added
BVF Inc3,211,041$177.5M6.34%+636,026+24.7%Added
Deep Track Capital, LP3,245,899$179.4M5.77%+245,899+8.2%Added
Vanguard Group Inc4,358,595$240.9M0.00%+81,377+1.9%Added
RTW Investments, LP5,756,277$318.1M4.53%+36,862+0.6%Added
Farallon Capital Management, L.L.C.6,172,006$341.1M1.56%+65,000+1.1%Added
BlackRock, Inc.9,630,341$532.3M0.01%−106,426−1.1%Reduced
Colony Group, LLC0$00.00%−435,097−100.0%Sold out
Jane Street Group, LLC0$00.00%−193,300−100.0%Sold out
Soleus Capital Management, L.P.0$00.00%−169,000−100.0%Sold out
Jacobs Levy Equity Management, Inc0$00.00%−128,654−100.0%Sold out
Nan Fung Group Holdings Ltd0$00.00%−121,400−100.0%Sold out
Empowered Funds, LLC0$00.00%−102,532−100.0%Sold out
Lazard Asset Management LLC0$00.00%−96,420−100.0%Sold out
Aquilo Capital Management, LLC0$00.00%−81,692−100.0%Sold out
HRT Financial LP0$00.00%−69,242−100.0%Sold out
BCJ Capital Management, LLC0$00.00%−58,413−100.0%Sold out
Jump Financial, LLC0$00.00%−56,780−100.0%Sold out
D. E. Shaw & Co., Inc.0$00.00%−47,361−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−42,583−100.0%Sold out
Corebridge Financial, Inc.0$00.00%−31,020−100.0%Sold out
Hennion & Walsh Asset Management, Inc.0$00.00%−26,066−100.0%Sold out
Quadrature Capital Ltd0$00.00%−26,061−100.0%Sold out
Jain Global LLC0$00.00%−24,867−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−20,169−100.0%Sold out
Verition Fund Management LLC0$00.00%−19,847−100.0%Sold out
Coppell Advisory Solutions LLC0$00.00%−20,765−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−19,015−100.0%Sold out
Jennison Associates LLC0$00.00%−18,317−100.0%Sold out
Scientech Research LLC0$00.00%−18,271−100.0%Sold out
Engineers Gate Manager LP0$00.00%−15,327−100.0%Sold out
Springhill Fund Asset Management (HK) Co Ltd0$00.00%−12,859−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−11,963−100.0%Sold out