PROK — Institutional owners (13F)

76 filers · $97.1M total · As of June 30, 2026

Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.

Institution Value Shares % of tracked 13F Type
MONTANOVA CAPITAL, LLC $25,176,183 12,341,266 25.92% Shares
MORGAN STANLEY $20,102,523 9,854,178 20.70% Shares
BlackRock, Inc. $10,602,343 5,197,227 10.92% Shares
GEODE CAPITAL MANAGEMENT, LLC $4,877,226 2,390,147 5.02% Shares
Bleichroeder LP $4,080,000 2,000,000 4.20% Shares
VANGUARD GROUP INC $3,692,033 1,648,229 3.80% Shares
Artia Global Partners LP $3,686,156 1,806,939 3.79% Shares
VANGUARD CAPITAL MANAGEMENT LLC $2,397,524 1,175,257 2.47% Shares
RENAISSANCE TECHNOLOGIES LLC $2,242,776 1,099,400 2.31% Shares
MILLENNIUM MANAGEMENT LLC $2,151,598 1,054,705 2.22% Shares
STATE STREET CORP $2,133,728 1,045,945 2.20% Shares
CHARLES SCHWAB INVESTMENT MANAGEMENT INC $1,594,727 781,729 1.64% Shares
UBS Group AG $1,369,752 671,447 1.41% Shares
NORTHERN TRUST CORP $1,356,247 664,827 1.40% Shares
MYDA Advisors LLC $1,307,181 640,775 1.35% Shares
VANGUARD FIDUCIARY TRUST CO $1,289,584 632,149 1.33% Shares
BANK OF AMERICA CORP /DE/ $1,112,122 545,158 1.14% Shares
VANGUARD PORTFOLIO MANAGEMENT LLC $1,054,847 517,082 1.09% Shares
Voleon Capital Management LP $965,546 473,307 0.99% Shares
Amundi $620,468 304,151 0.64% Shares
TWO SIGMA INVESTMENTS, LP $557,448 273,259 0.57% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $515,928 252,906 0.53% Shares
GOLDMAN SACHS GROUP INC $414,132 203,006 0.43% Shares
Virtus Investment Advisers, LLC $407,000 199,510 0.42% Shares
Bank of New York Mellon Corp $360,382 176,657 0.37% Shares
Squarepoint Ops LLC $227,997 111,763 0.23% Shares
Nuveen, LLC $206,980 101,461 0.21% Shares
CITADEL ADVISORS LLC $199,716 97,900 0.21% Call option
Susquehanna Portfolio Strategies, LLC $198,651 97,378 0.20% Shares
FMR LLC $171,780 84,206 0.18% Shares
Abel Hall, LLC $154,905 75,934 0.16% Shares
DEUTSCHE BANK AG\ $153,761 75,373 0.16% Shares
WELLS FARGO & COMPANY/MN $137,214 67,262 0.14% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $127,500 62,500 0.13% Call option
JANE STREET GROUP, LLC $122,808 60,200 0.13% Call option
RHUMBLINE ADVISERS $110,361 54,101 0.11% Shares
NEW YORK STATE COMMON RETIREMENT FUND $93,024 45,600 0.10% Shares
Invesco Ltd. $83,067 40,719 0.09% Shares
JANE STREET GROUP, LLC $81,480 39,941 0.08% Shares
AXQ CAPITAL, LP $76,357 37,430 0.08% Shares
JANE STREET GROUP, LLC $74,256 36,400 0.08% Put option
CITIGROUP INC $72,188 35,386 0.07% Shares
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. $71,078 34,842 0.07% Shares
Vanguard Global Advisers, LLC $69,511 34,074 0.07% Shares
JPMORGAN CHASE & CO $60,716 32,125 0.06% Shares
CANADA PENSION PLAN INVESTMENT BOARD $57,528 28,200 0.06% Shares
Virtus Family Office LLC $56,100 27,500 0.06% Shares
Police & Firemen's Retirement System of New Jersey $51,632 25,310 0.05% Shares
ALLIANCEBERNSTEIN L.P. $47,900 26,760 0.05% Shares
R Squared Ltd $36,357 17,822 0.04% Shares
CITADEL ADVISORS LLC $35,904 17,600 0.04% Put option
INTECH INVESTMENT MANAGEMENT LLC $34,562 16,942 0.04% Shares
BARCLAYS PLC $32,887 16,121 0.03% Shares
LETKO, BROSSEAU & ASSOCIATES INC $32,436 15,900 0.03% Shares
Callan Family Office, LLC $27,324 13,394 0.03% Shares
BNP PARIBAS FINANCIAL MARKETS $25,094 12,301 0.03% Shares
TWO SIGMA ADVISERS, LP $24,416 10,900 0.03% Shares
PRUDENTIAL FINANCIAL INC $22,195 10,880 0.02% Shares
EP Wealth Advisors, LLC $20,400 10,000 0.02% Shares
Legal & General Group Plc $15,116 7,410 0.02% Shares
Ameritas Investment Partners, Inc. $14,009 6,867 0.01% Shares
Russell Investments Group, Ltd. $12,342 6,050 0.01% Shares
Tower Research Capital LLC (TRC) $9,837 4,822 0.01% Shares
IFP Advisors, Inc $6,120 3,000 0.01% Shares
ROYAL BANK OF CANADA $5,000 2,456 0.01% Shares
OSAIC HOLDINGS, INC. $1,938 950 0.00% Shares
Sterling Capital Management LLC $1,342 658 0.00% Shares
CWM, LLC $814 455 0.00% Shares
SBI Securities Co., Ltd. $622 305 0.00% Shares
GSA CAPITAL PARTNERS LLP $615 301,622 0.00% Shares
Caitong International Asset Management Co., Ltd $457 224 0.00% Shares
Arax Advisory Partners $375 184 0.00% Shares
JONES FINANCIAL COMPANIES LLLP $183 100 0.00% Shares
SIGNATUREFD, LLC $153 75 0.00% Shares
PRICE T ROWE ASSOCIATES INC /MD/ $127 62,039 0.00% Shares
FNY Investment Advisers, LLC $42 21,000 0.00% Shares