PTGX Protagonist Therapeutics, Inc.

NASDAQ
$142.84

Protagonist Therapeutics, Inc. (PTGX) Institutional Ownership

What the institutions did with PTGX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers compared
374
filed both this quarter and last
Managers holding
338
+22 on the quarter
Buyers
198
58 opened new
Sellers
123
36 sold out entirely
Buyer share
61.7%
of managers who traded it
Breadth
+23.4
net buyers, as a share of those trading

Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
BlackRock, Inc. 10.3M 13.6%
FARALLON CAPITAL MANAGEMENT LLC 6.3M 8.4%
RTW INVESTMENTS, LP 5.1M 6.7%
VANGUARD PORTFOLIO MANAGEMENT LLC 3.6M 4.8%
WELLINGTON MANAGEMENT GROUP LLP 3.4M 4.5%
UBS Group AG 3.4M 4.5%
STATE STREET CORP 3.3M 4.4%
VANGUARD CAPITAL MANAGEMENT LLC 2.9M 3.8%
JOHNSON & JOHNSON 2.4M 3.2%
Invesco Ltd. 2.3M 3.1%
PRICE T ROWE ASSOCIATES INC /MD/ 2.1M 2.8%
Jupiter Topco LLC 2.1M 2.8%
GEODE CAPITAL MANAGEMENT, LLC 1.7M 2.3%
Woodline Partners LP 1.4M 1.9%
BANK OF AMERICA CORP /DE/ 1.3M 1.7%
JENNISON ASSOCIATES LLC 1.2M 1.5%
PERCEPTIVE ADVISORS LLC 981.9K 1.3%
ADAR1 Capital Management, LLC 960.9K 1.3%
MORGAN STANLEY 906.0K 1.2%
Alyeska Investment Group, L.P. 889.3K 1.2%
Hood River Capital Management LLC 882.7K 1.2%
GOLDMAN SACHS GROUP INC 812.9K 1.1%
Driehaus Capital Management LLC 731.1K 1.0%
Clearbridge Investments, LLC 725.3K 1.0%
FMR LLC 672.2K 0.9%

Largest changes

Manager Action Previous Current Change
UBS Group AG Reduced 5.2M 3.4M -1.8M
CITADEL ADVISORS LLC Sold Out 1.6M 0 -1.6M
Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. Sold Out 571.8K 0 -571.8K
BlackRock, Inc. Increased 9.8M 10.3M +528.5K
MARSHALL WACE, LLP Reduced 628.1K 109.0K -519.1K
PRICE T ROWE ASSOCIATES INC /MD/ Increased 1.7M 2.1M +484.2K
Rubric Capital Management LP Sold Out 428.0K 0 -428.0K
FRANKLIN RESOURCES INC Increased 137.9K 520.0K +382.2K
DIMENSIONAL FUND ADVISORS LP Reduced 508.1K 178.2K -330.0K
Vestal Point Capital, LP Sold Out 326.2K 0 -326.2K
Alyeska Investment Group, L.P. Increased 593.2K 889.3K +296.1K
ADAGE CAPITAL PARTNERS GP, L.L.C. Sold Out 282.4K 0 -282.4K
Stephens Investment Management Group LLC New 0 281.8K +281.8K
PERCEPTIVE ADVISORS LLC Reduced 1.2M 981.9K -249.0K
LORD, ABBETT & CO. LLC Increased 163.5K 399.0K +235.5K
STATE STREET CORP Increased 3.1M 3.3M +204.8K
Holocene Advisors, LP Reduced 209.9K 8.5K -201.4K
WELLINGTON MANAGEMENT GROUP LLP Reduced 3.6M 3.4M -182.9K
Invesco Ltd. Increased 2.2M 2.3M +176.0K
NEUBERGER BERMAN GROUP LLC Increased 141.4K 302.4K +161.0K
Nuveen, LLC Increased 127.9K 284.1K +156.2K
VANGUARD PORTFOLIO MANAGEMENT LLC Increased 3.5M 3.6M +148.1K
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. New 0 141.1K +141.1K
STEMPOINT CAPITAL LP Reduced 145.2K 16.3K -128.9K
VOYA INVESTMENT MANAGEMENT LLC Increased 454.4K 571.6K +117.2K
MORGAN STANLEY Reduced 1.0M 906.0K -112.2K
PANAGORA ASSET MANAGEMENT INC Reduced 116.6K 5.8K -110.8K
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced 167.6K 57.1K -110.5K
BNP PARIBAS FINANCIAL MARKETS Increased 194.5K 301.5K +106.9K
Catalio Capital Management, LP New 0 106.8K +106.8K
Clearbridge Investments, LLC Increased 621.8K 725.3K +103.5K
Balyasny Asset Management L.P. Reduced 101.3K 3.6K -97.7K
JENNISON ASSOCIATES LLC Increased 1.1M 1.2M +79.7K
NORTHERN TRUST CORP Increased 588.0K 666.1K +78.1K
Russell Investments Group, Ltd. Increased 40.4K 115.4K +75.0K
GEODE CAPITAL MANAGEMENT, LLC Increased 1.7M 1.7M +71.8K
Eagle Health Investments LP Increased 179.3K 248.3K +69.0K
683 Capital Management, LLC Reduced 355.0K 290.0K -65.0K
AMERICAN CENTURY COMPANIES INC Increased 537.3K 598.6K +61.3K
Eversept Partners, LP New 0 58.5K +58.5K
Hood River Capital Management LLC Increased 829.3K 882.7K +53.5K
ASSETMARK, INC Increased 46.4K 98.7K +52.2K
CASTLEARK MANAGEMENT LLC New 0 50.6K +50.6K
Integral Health Asset Management, LLC Sold Out 50.0K 0 -50.0K
Duquesne Family Office LLC Increased 159.7K 208.9K +49.2K
TD Asset Management Inc Reduced 183.7K 135.0K -48.8K
VANGUARD CAPITAL MANAGEMENT LLC Increased 2.8M 2.9M +47.5K
BNP PARIBAS ASSET MANAGEMENT Holding S.A. Reduced 306.0K 260.0K -46.1K
Caption Management, LLC New 0 45.0K +45.0K
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP New 0 44.5K +44.5K
WELLS FARGO & COMPANY/MN Increased 30.1K 71.9K +41.9K
Seven Fleet Capital Management LP Increased 4.0K 45.4K +41.4K
Bellevue Group AG Increased 14.4K 55.7K +41.2K
CITIGROUP INC Increased 158.7K 198.7K +40.0K
GOLDMAN SACHS GROUP INC Increased 778.9K 812.9K +33.9K
ADAR1 Capital Management, LLC Reduced 994.1K 960.9K -33.3K
FIRST TRUST ADVISORS LP Reduced 87.9K 54.9K -33.0K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC Increased 553.0K 583.8K +30.8K
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC Increased 6.7K 36.3K +29.5K
BANK OF AMERICA CORP /DE/ Increased 1.3M 1.3M +29.1K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.