Gulfport Energy Corporation
Gulfport Energy Corporation (GPOR) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · GPOR · as of Sep 30, 2025
Ownership Breakdown
304
Institutional Holders
$3.91B
Total Inst. Value
▲ $98.80M vs Q2
17.97M
Shares Outstanding
freeFloat 98.51%
21.60M
13F Shares Held
▲ 2.66M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
GPOR largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
SILVER POINT CAPITAL L.P. crude petroleum & natural gas | 3.74M | 21.02% | 21.02% | $676.99B | Nov 14, 2025 | ▲ 1.74M |
BLACKROCK, INC. crude petroleum & natural gas | 1.14M | 6.40% | 6.40% | $205.95B | Nov 12, 2025 | ▲ 77.8K |
VANGUARD GROUP INC crude petroleum & natural gas | 1.08M | 6.06% | 6.06% | $195.17B | Nov 7, 2025 | ▲ 68.7K |
FMR LLC crude petroleum & natural gas | 1.04M | 5.85% | 5.85% | $188.38B | Nov 13, 2025 | ▲ 4.4K |
WELLINGTON MANAGEMENT GROUP LLP crude petroleum & natural gas | 725.3K | 4.08% | 4.08% | $131.27B | Nov 14, 2025 | ▼ 57.7K |
JENNISON ASSOCIATES LLC crude petroleum & natural gas | 587.9K | 3.30% | 3.30% | $106.39B | Oct 30, 2025 | ▲ 22.7K |
STATE STREET CORP crude petroleum & natural gas | 585.9K | 3.29% | 3.29% | $106.03B | Nov 14, 2025 | ▲ 103.4K |
DIMENSIONAL FUND ADVISORS LP crude petroleum & natural gas | 560.9K | 3.15% | 3.15% | $101.51B | Nov 12, 2025 | ▼ 11.6K |
MACQUARIE GROUP LTD crude petroleum & natural gas | 505.8K | 2.84% | 2.84% | $91.53B | Nov 13, 2025 | ▼ 151.8K |
ADAGE CAPITAL PARTNERS GP, L.L.C. crude petroleum & natural gas | 459.2K | 2.58% | 2.58% | $83.11B | Nov 14, 2025 | ▲ 58.4K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
33
Increased
+3.88M shares2
New Positions
first time holders13
Decreased
−611.4K shares0
Sold Out
fully exitedNet shares change (top 50)
+3.27M
+3.88M / −611.4K
Net new holders
+22
2 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
GPOR insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
3
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Silver Point Capital L.P.
| May 28, 2026 | Award | 1,028 | — | — | 1.0K | Form 4 ↗ |
Reganato David A director | May 28, 2026 | Award | 1,028 | — | — | 1.0K | Form 4 ↗ |
Cutt Timothy J. director | May 28, 2026 | Award | 1,028 | — | — | 29.5K | Form 4 ↗ |
SLUITER MICHAEL SVP of Reservoir Engineering | May 28, 2026 | Award | 1,307 | — | — | 10.3K | Form 4 ↗ |
DELL'OSSO DOMENIC J JR President & CEO | May 28, 2026 | Award | 22,749 | — | — | 22.7K | Form 4 ↗ |
Martinez Jason Joseph director | May 28, 2026 | Award | 1,028 | — | — | 4.9K | Form 4 ↗ |
Powers Jean Marie director | May 28, 2026 | Award | 1,028 | — | — | 4.1K | Form 4 ↗ |
Shafer-Malicki Mary director | May 28, 2026 | Award | 1,028 | — | — | 4.2K | Form 4 ↗ |
Wolf David D director | May 28, 2026 | Award | 1,028 | — | — | 5.5K | Form 4 ↗ |
Willrath Matthew VP & CAO | May 26, 2026 | Tax Withhold | 134 | $178.22 | $23.9K | 2.5K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Gulfport Energy Corporation (GPOR) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 1.49%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Gulfport Energy Corporation is SILVER POINT CAPITAL L.P., holding approximately 3.74 million shares — equal to 21.02% of outstanding shares — as of September 30, 2025.
A total of 304 institutional investors currently hold GPOR stock, with a combined institutional value of approximately $3.91 billion as of the most recent 13F filing period.
Frequently asked questions
GPOR ownershipGulfport Energy Corporation (GPOR) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is SILVER POINT CAPITAL L.P. with a 21.02% stake. Company insiders hold 1.49%. Data sourced from SEC Form 13F as of September 30, 2025.