AI Holders Summary · Q1 2026

175 institutions reported REPX in Q1 2026. Yorktown Energy Partners XI, L.P. leads at 18.0% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

Hide index funds / market makers / custodians(5 on this page)

#HolderValueShares% port.Quarter

Yorktown Energy Partners XI, L.P.

CIK 0001667954

$65M1.8M45.95%Q1 2026 02

BlackRock, Inc.

CIK 0002012383

$37M1.0M0.00%Q1 2026 03

Bluescape Energy Partners LLC

CIK 0001629283

$36M990K11.20%Q1 2026 04

AMERICAN CENTURY COMPANIES INC

CIK 0000748054

$23M627K0.01%Q1 2026 05

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$22M617K0.00%Q1 2026 06

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

CIK 0001164508

$22M609K0.01%Q1 2026 07

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$21M579K0.00%Q1 2026 08

DRIEHAUS CAPITAL MANAGEMENT LLC

CIK 0000938206

$16M444K0.12%Q1 2026 09

TWO SIGMA INVESTMENTS, LP

CIK 0001179392

$15M422K0.01%Q1 2026 10

Yorktown Energy Partners X, L.P.

CIK 0001577919

$14M391K20.50%Q1 2026 11

Vanguard Portfolio Management

CIK 0002100121· Index

$12M333K0.00%Q1 2026 12

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$11M306K0.00%Q1 2026 13

ROYCE & ASSOCIATES LP

CIK 0000906304

$10M262K0.09%Q1 2026 14

KENNEDY CAPITAL MANAGEMENT LLC

CIK 0000884589

$9M254K0.20%Q1 2026 15

STATE STREET CORP

CIK 0000093751

$9M250K0.00%Q1 2026 16

MACKENZIE FINANCIAL CORP

CIK 0000919859

$9M242K0.01%Q1 2026 17

Bank of New York Mellon Corp

CIK 0001390777

$9M236K0.00%Q1 2026 18

BANK OF AMERICA CORP /DE/

CIK 0000070858

$7M196K0.00%Q1 2026 19

FIRST TRUST ADVISORS LP

CIK 0001125816· Index

$7M194K0.01%Q1 2026 20

First Eagle Investment Management, LLC

CIK 0001325447

$7M184K0.01%Q1 2026

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