# PRAIRIE OPER CO COM

PRAIRIE OPER CO COM is a security (CUSIP 739650109) tracked across SEC portfolio filings. 115 institutional managers reported $35.1M on Form 13F as of 2026-06-30; 6 registered fund positions totaling $1.2M via N-PORT as of 2026-05-31.

## Summary

- Issuer: PRAIRIE OPER CO
- Class: COM
- CUSIP: 739650109
- Asset category: EC
- 13F holders: 115
- 13F value: $35.1M
- 13F period: 2026-06-30
- N-PORT fund positions: 6
- N-PORT value: $1.2M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 115 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BlackRock, Inc. | New York, NY | $4.1M | 2,038,343 |
| Hudson Bay Capital Management LP | Greenwich, CT | $3.1M | 1,546,000 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $3.1M | 1,382,946 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $3.0M | 1,757,344 |
| [SRS Capital Advisors, Inc.](https://search.stillhousedata.com/firm/133535) | DENVER, CO | $2.8M | 1,386,533 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $2.2M | 940,424 |
| [CastleKnight Management LP](https://search.stillhousedata.com/firm/309435) | New York, NY | $2.2M | 1,068,075 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $1.8M | 887,343 |
| STATE STREET CORP | BOSTON, MA | $1.2M | 567,918 |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $1.1M | 522,326 |
| [Diametric Capital, LP](https://search.stillhousedata.com/firm/288409) | BOSTON, MA | $978K | 481,699 |
| MORGAN STANLEY | NEW YORK, NY | $919K | 452,861 |
| [GROUP ONE TRADING, L.P.](https://search.stillhousedata.com/firm/37484) | CHICAGO, IL | $875K | 431,126 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $669K | 55,781 |
| [SIMPLEX TRADING, LLC](https://search.stillhousedata.com/firm/153585) | CHICAGO, IL | $618K | 304,286 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $903K | 0.11% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $155K | 0.09% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $76K | 0.16% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $58K | 0.01% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $11K | 0.25% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $-2K | -0.01% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/739650109.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.