Who Owns PRAIRIE OPER CO (PROP)? -- Institutional Holders (2026-06-30)

145 institutions reported holding $15.4M of PRAIRIE OPER CO (PROP) in SEC 13F filings for 2026-06-30. Largest institutional holders: VANGUARD GROUP INC ($2.3M), AQR CAPITAL MANAGEMENT LLC ($1.7M), Arax Advisory Partners ($1.0M), LAZARD ASSET MANAGEMENT LLC ($820,918), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($772,179). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1VANGUARD GROUP INC$2.3M3.2MAdded
2AQR CAPITAL MANAGEMENT LLC$1.7M2.4MAdded
3Arax Advisory Partners$1.0M1.4MAdded
4LAZARD ASSET MANAGEMENT LLC$820,9181.1MAdded
5SUSQUEHANNA INTERNATIONAL GROUP, LLP$772,1791.1MTrimmed
6UBS Group AG$728,1251.0MAdded
7GROUP ONE TRADING LLC$660,632915,638Added
8BlackRock, Inc.$634,894879,964Trimmed
9GEODE CAPITAL MANAGEMENT, LLC$620,566859,956Trimmed
10SIMPLEX TRADING, LLC$452,296626,884Added
11MILLENNIUM MANAGEMENT LLC$379,420525,876New
12Corient Private Wealth LLC$312,546433,189Added
13JANE STREET GROUP, LLC$265,784368,377Trimmed
14MORGAN STANLEY$264,434366,506Trimmed
15CITADEL ADVISORS LLC$248,773344,800Added
16Fore Capital, LLC$227,273315,000New
17STATE STREET CORP$224,675311,400Trimmed
18ELCO Management Co., LLC$217,870301,968Added
19TRANSCEND CAPITAL ADVISORS, LLC$192,663267,031New
20GSA CAPITAL PARTNERS LLP$191,000264,466Added
21Marex Group plc$180,493250,164Added
22WELLINGTON MANAGEMENT GROUP LLP$179,482248,762Added
23BNP PARIBAS FINANCIAL MARKETS$172,737239,414Added
24HSBC HOLDINGS PLC$154,435227,110New
25IMC-Chicago, LLC$151,569210,075Trimmed

Source: SEC Form 13F filings · as of 2026-06-30