GPOR Gulfport Energy Corporation

NYSE
$173.45

Gulfport Energy Corporation (GPOR) Institutional Ownership

What the institutions did with GPOR last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers reporting
346
filed a 13F this quarter
Managers holding
288
-15 on the quarter
Buyers
168
43 opened new
Sellers
143
58 sold out entirely
Buyer share
54.0%
of managers who traded it
Breadth
+8.0
net buyers, as a share of those trading

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Largest holders

Manager Shares % of reported
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 3.1M 12.7%
Silver Point Capital L.P. 2.6M 10.7%
BlackRock, Inc. 2.3M 9.3%
STATE STREET CORP 990.9K 4.1%
FMR LLC 861.9K 3.5%
VANGUARD CAPITAL MANAGEMENT LLC 666.0K 2.7%
DIMENSIONAL FUND ADVISORS LP 627.5K 2.6%
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 558.7K 2.3%
VICTORY CAPITAL MANAGEMENT INC 530.6K 2.2%
JENNISON ASSOCIATES LLC 527.2K 2.2%
T. Rowe Price Investment Management, Inc. 524.8K 2.2%
ADAGE CAPITAL PARTNERS GP, L.L.C. 470.1K 1.9%
VANGUARD PORTFOLIO MANAGEMENT LLC 454.1K 1.9%
HITE Hedge Asset Management LLC 403.4K 1.7%
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 388.7K 1.6%
GEODE CAPITAL MANAGEMENT, LLC 386.9K 1.6%
PRINCIPAL FINANCIAL GROUP INC 377.2K 1.5%
JPMORGAN CHASE & CO 372.5K 1.5%
Palo Duro Investment Partners, LP 357.9K 1.5%
Assenagon Asset Management S.A. 344.0K 1.4%
AMERICAN CENTURY COMPANIES INC 338.6K 1.4%
WHITEBOX ADVISORS LLC 274.6K 1.1%
WESTWOOD HOLDINGS GROUP INC 248.6K 1.0%
FRONTIER CAPITAL MANAGEMENT CO LLC 240.8K 1.0%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 239.6K 1.0%

Largest changes

Manager Action Previous Current Change
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Increased 18.8K 3.1M +3.1M
BlackRock, Inc. Increased 1.2M 2.3M +1.1M
Gemsstock Ltd. Reduced 508.2K 139.9K -368.3K
HITE Hedge Asset Management LLC Increased 148.2K 403.4K +255.2K
Hancock Prospecting Pty Ltd New 0 227.5K +227.5K
STATE STREET CORP Increased 764.8K 990.9K +226.1K
GOLDENTREE ASSET MANAGEMENT LP Sold Out 216.3K 0 -216.3K
T. Rowe Price Investment Management, Inc. Increased 371.2K 524.8K +153.6K
VANGUARD PORTFOLIO MANAGEMENT LLC Increased 311.0K 454.1K +143.1K
AMERICAN CENTURY COMPANIES INC Increased 201.6K 338.6K +136.9K
Assenagon Asset Management S.A. Reduced 467.4K 344.0K -123.4K
JENNISON ASSOCIATES LLC Reduced 620.8K 527.2K -93.6K
MILLENNIUM MANAGEMENT LLC Reduced 202.5K 109.8K -92.6K
WELLINGTON MANAGEMENT GROUP LLP Reduced 119.1K 29.6K -89.5K
Alyeska Investment Group, L.P. Sold Out 78.1K 0 -78.1K
Pacer Advisors, Inc. Increased 1.7K 79.5K +77.8K
Zimmer Partners, LP New 0 76.0K +76.0K
MACKENZIE FINANCIAL CORP Reduced 117.0K 46.8K -70.2K
SYSTEMATIC FINANCIAL MANAGEMENT LP Increased 101.7K 171.0K +69.3K
Bridgewater Associates, LP Increased 91.8K 159.9K +68.1K
PRINCIPAL FINANCIAL GROUP INC Increased 310.0K 377.2K +67.2K
RENAISSANCE TECHNOLOGIES LLC Reduced 137.2K 75.0K -62.2K
BANK OF AMERICA CORP /DE/ Reduced 152.2K 97.0K -55.2K
WHITEBOX ADVISORS LLC Increased 219.6K 274.6K +55.0K
FMR LLC Reduced 915.5K 861.9K -53.6K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.