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PRTA Institutional Ownership

Top institutional (13F) holders of PRTA and activist (13D/G) positions, sourced from SEC EDGAR.

Institutional owners
39
Institutional value
$286.47M
Top holder
FMR LLC
Activist holders
3

Top holders

HolderStakeFiledValue
FMR LLCinvestment advisor14.0%Aug 13, 2026$70.48M
BlackRock, Inc.holding company9.5%Aug 7, 2026$47.66M
STATE STREET CORPORATIONholding company4.7%Sep 22, 2026$23.43M
Vanguard Portfolio Managementinvestment advisor3.2%Aug 13, 2026$16.17M
D. E. Shaw & Co., Inc.investment advisor3.1%Aug 14, 2026$15.78M
TWO SIGMA INVESTMENTS, LPinvestment advisor2.5%Aug 14, 2026$12.38M
GEODE CAPITAL MANAGEMENT, LLCinvestment advisor2.2%Aug 12, 2026$11.02M
MORGAN STANLEYholding company1.9%Aug 13, 2026$9.74M
GOLDMAN SACHS GROUP INCinvestment advisor1.9%Aug 14, 2026$9.59M
Dimensional Fund Advisors LPinvestment advisor1.8%Aug 11, 2026$8.87M
RENAISSANCE TECHNOLOGIES LLCinvestment advisor1.4%Aug 13, 2026$6.83M
Man Group plcinvestment advisor1.3%Aug 14, 2026$6.64M
CITADEL ADVISORS LLCinvestment advisor1.2%Sep 1, 2026$5.85M
SUSQUEHANNA INTERNATIONAL GROUP, LLPinvestment advisor0.9%Aug 14, 2026$4.77M
Vanguard Capital Managementinvestment advisor0.9%Aug 13, 2026$4.7M
NORTHERN TRUST CORPinvestment advisor0.9%Aug 13, 2026$4.48M
Point72 Asset Management, L.P.investment advisor0.8%May 15, 2026$3.89M
CHARLES SCHWAB INVESTMENT MANAGEMENT INCinvestment advisor0.7%Aug 14, 2026$3.48M
AQR CAPITAL MANAGEMENT LLCinvestment advisor0.6%Aug 14, 2026$2.96M
UBS Group AGbank0.5%Aug 13, 2026$2.36M
BANK OF AMERICA CORP /DE/holding company0.4%Aug 14, 2026$2.04M
MARSHALL WACE, LLPinvestment advisor0.4%Aug 13, 2026$1.87M
JANE STREET GROUP, LLCholding company0.3%Aug 14, 2026$1.48M
MILLENNIUM MANAGEMENT LLCinvestment advisor0.3%Aug 14, 2026$1.47M
Bank of New York Mellon Corpholding company0.3%Aug 6, 2026$1.31M

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Source: SEC EDGAR Schedule 13D / 13G and 13F filings.