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As of the latest SEC filings, Protagonist Therapeutics, Inc (PTGX) is held by 375 institutional funds. The largest fund shareholder is iShares Core S&P Small-Cap ETF (IJR), holding an estimated $371,984,004.00 in market value, representing 0.40% of its portfolio.

Funds holding Protagonist Therapeutics, Inc (PTGX)

Source: SEC Form N-PORT institutional portfolio disclosures

Ticker:
PTGX
CIK:
0001377121
Showing top 25 of 375 institutional funds
Fund Type Manager Weight Market Value Shares
Report Date
Filing Date
IJR
iShares Core S&P Small-Cap ETF
ETF BlackRock / iShares 0.40% $371,984,004.00 3,529,260 Mar 31, 2026 May 26, 2026
VTI
VANGUARD TOTAL STOCK MARKET INDEX FUND
ETF Vanguard 0.01% $214,738,798.00 2,037,370 Mar 31, 2026 May 28, 2026
NAESX
VANGUARD SMALL-CAP INDEX FUND
ETF Vanguard 0.09% $155,064,480.00 1,471,200 Mar 31, 2026 May 28, 2026
IWM
iShares Russell 2000 ETF
ETF BlackRock / iShares 0.21% $149,910,947.00 1,422,305 Mar 31, 2026 May 28, 2026
VGHAX
VANGUARD HEALTH CARE FUND
MF Vanguard 0.37% $136,622,641.65 1,380,445 Apr 30, 2026 Jun 26, 2026
PRHSX
T. Rowe Price Health Sciences Fund, Inc.
MF T. Rowe Price 1.11% $120,373,018.60 1,142,059 Mar 31, 2026 May 28, 2026
XBI
State Street(R) SPDR(R) S&P(R) Biotech ETF
ETF State Street (SPDR) 1.24% $92,548,683.40 878,071 Mar 31, 2026 May 28, 2026
VISGX
VANGUARD SMALL-CAP GROWTH INDEX FUND
ETF Vanguard 0.22% $86,705,307.40 822,631 Mar 31, 2026 May 28, 2026
VEMPX
VANGUARD EXTENDED MARKET INDEX FUND
ETF Vanguard 0.08% $69,194,362.20 656,493 Mar 31, 2026 May 28, 2026
FSSNX
Fidelity Small Cap Index Fund
MF Fidelity 0.17% $56,938,727.61 575,313 Apr 30, 2026 Jun 26, 2026
SPSM
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF
ETF State Street (SPDR) 0.40% $56,098,096.00 532,240 Mar 31, 2026 May 28, 2026
JATTX
Janus Henderson Triton Fund
MF Independent / Boutique 1.03% $53,611,499.20 508,648 Mar 31, 2026 May 29, 2026
IJT
iShares S&P Small-Cap 600 Growth ETF
ETF BlackRock / iShares 0.82% $53,438,748.60 507,009 Mar 31, 2026 May 28, 2026
IWO
iShares Russell 2000 Growth ETF
ETF BlackRock / iShares 0.41% $50,021,996.80 474,592 Mar 31, 2026 May 28, 2026
IBB
iShares Biotechnology ETF
ETF BlackRock / iShares 0.58% $47,118,753.80 447,047 Mar 31, 2026 May 28, 2026
HRSMX
Hood River Small-Cap Growth Fund
MF Independent / Boutique 0.90% $46,929,139.20 445,248 Mar 31, 2026 May 29, 2026
FBIOX
Select Biotechnology Portfolio
MF Fidelity 0.87% $46,658,133.04 506,713 Feb 28, 2026 Apr 24, 2026
XSMO
Invesco S&P SmallCap Momentum ETF
ETF Invesco 1.63% $44,935,052.19 454,027 Apr 30, 2026 Jun 26, 2026
ODINX
Invesco Discovery Fund
MF Invesco 0.65% $43,372,442.40 471,030 Feb 28, 2026 Apr 28, 2026
VTSIX
VANGUARD TAX-MANAGED SMALL-CAP FUND
MF Vanguard 0.44% $42,162,213.40 400,021 Mar 31, 2026 May 28, 2026
ANOIX
Small Cap Growth Fund
MF American Century 0.79% $40,255,354.71 406,743 Apr 30, 2026 Jun 26, 2026
JAVTX
Janus Henderson Venture Fund
MF Independent / Boutique 1.12% $34,297,370.80 325,402 Mar 31, 2026 May 29, 2026
SHSKX
BlackRock Health Sciences Opportunities Portfolio
MF BlackRock / iShares 0.52% $34,107,168.64 370,408 Feb 27, 2026 Apr 24, 2026
PGOAX
PGIM Jennison Small Company Fund
MF PGIM / Prudential 1.04% $33,097,813.40 314,021 Mar 31, 2026 May 27, 2026
VEXPX
VANGUARD EXPLORER FUND
MF Vanguard 0.15% $32,917,422.00 332,600 Apr 30, 2026 Jun 26, 2026
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