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Security record · archived quarter

GPOR

Gulfport Energy Corp · Energy · Oil & Gas Exploration & Production

168.13 +1.9% mkt cap $3.02B quote delayed (FMP) · as of Oct 13 22:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
95Tracked holders
+2Δ holders
12.16MShares held
$2.53BReported value
+2New positions
−0Exits
Stable Conviction score 46/100 3 quarters of rising tracked shares ●●●○○○ How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth +2.2% · share flow -6.6% · net new positions +2.1% — formula
Ownership fragmentation — more holders, smaller aggregate stake

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 97 -3 13.01M $2.21B +4 −7
Q1 2026 103 +7 12.01M $2.54B +10 −3
Q4 2025 95 +2 12.16M $2.53B +2 —
Q3 2025 19 0 7.71M $1.40B +1 −1
Q2 2025 16 0 5.79M $1.16B +1 −1
Q1 2025 13 -2 3.10M $571.04M — −2
Q4 2024 15 +2 3.27M $602.57M +2 —
Q3 2024 12 -1 2.95M $447.20M +1 −2
Q2 2024 13 — 2.71M $409.33M — —
Holder count
Who holds it · Q4 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 BlackRock ✦ (passive) 1.16M +1.7% $240.72M 0.0% ▲ Add 3 SEC ↗ ×12
2 Fidelity (FMR) ✦ 1.07M +3.0% $223.00M 0.0% ▲ Add 3 SEC ↗ ×5
3 The Vanguard Group ✦ (passive) 1.05M -2.9% $217.79M 0.0% ▼ Trim 3 SEC ↗ ×5
4 Jennison Associates Llc 671.48K — $139.66M 0.1% n/c 1 SEC ↗ ×2
5 Dimensional Fund Advisors Lp 595.61K — $123.89M 0.0% n/c 1 SEC ↗ ×5
6 State Street Global Advisors ✦ (passive) 567.51K -3.1% $118.04M 0.0% ▼ Trim 5 SEC ↗
7 Victory Capital Management Inc 527.39K — $109.69M 0.1% n/c 1 SEC ↗
8 Nomura Asset Management… 488.17K — $101.53M 0.2% n/c 1 SEC ↗
9 Adage Capital Partners ✦ 446.23K -2.8% $92.81M 0.1% ▼ Trim 6 SEC ↗
10 Wellington Management ✦ 439.56K -39.4% $91.42M 0.0% ▼ Trim 7 SEC ↗ ×4
11 JPMorgan Chase ✦ 409.88K -52.6% $85.25M 0.0% ▼ Trim 2 SEC ↗ ×6
12 Geode Capital Management ✦ (passive) 367.43K +1.1% $76.44M 0.0% ▲ Add 7 SEC ↗ ×2
13 Arrowstreet Capital ✦ 353.25K +12.5% $73.47M 0.0% ▲ Add 7 SEC ↗
14 Principal Financial Group Inc 350.61K — $72.92M 0.0% n/c 1 SEC ↗ ×2
15 Millennium Management ✦ 325.91K -23.5% $67.79M 0.1% ▼ Trim 7 SEC ↗
16 Charles Schwab Investment… 228.96K — $47.62M 0.0% n/c 1 SEC ↗
17 Janus Henderson Group Plc 214.57K — $44.62M 0.0% n/c 1 SEC ↗ ×2
18 Alliancebernstein L.P. 208.32K — $43.33M 0.0% n/c 1 SEC ↗
19 Pictet Asset Management Holding SA 165.26K — $34.37M 0.0% n/c 1 SEC ↗
20 Goldman Sachs Group ✦ 154.72K +5.8% $32.18M 0.0% ▲ Add 2 SEC ↗ ×3
21 Mackenzie Financial Corp 148.56K — $31.59M 0.0% n/c 1 SEC ↗
22 Northern Trust Corp 135.35K — $28.15M 0.0% n/c 1 SEC ↗ ×4
23 AQR Capital Management ✦ 134.46K +22.3% $27.97M 0.0% ▲ Add 7 SEC ↗ ×6
24 T. Rowe Price ✦ 124.96K +1.1% $25.99M 0.0% ▲ Add 7 SEC ↗ ×2
25 American Century Companies Inc 123.93K — $25.78M 0.0% n/c 1 SEC ↗
26 Bridgewater Associates ✦ 114.17K -22.3% $23.75M 0.1% ▼ Trim 7 SEC ↗
27 Qube Research & Technologies Ltd 109.38K — $22.75M 0.0% n/c 1 SEC ↗
28 Raymond James Financial Inc 105.87K — $22.36M 0.0% n/c 1 SEC ↗ ×5
29 Ameriprise Financial Inc 102.30K — $21.28M 0.0% n/c 1 SEC ↗ ×3
30 Bank Of America Corp /De/ 101.23K — $21.06M 0.0% n/c 1 SEC ↗ ×5
31 Grantham, Mayo, Van Otterloo & Co.… 78.44K — $16.31M 0.0% n/c 1 SEC ↗
32 UBS Group AG 77.58K — $16.14M 0.0% n/c 1 SEC ↗ ×4
33 Invesco Ltd. 69.46K — $14.45M 0.0% n/c 1 SEC ↗ ×5
34 New York State Common Retirement… 65.80K — $13.69M 0.0% n/c 1 SEC ↗
35 Susquehanna International Group, Llp 64.29K — $13.37M 0.0% n/c 1 SEC ↗
36 Sei Investments Co 59.81K — $12.44M 0.0% n/c 1 SEC ↗ ×2
37 Morgan Stanley ✦ 58.62K -48.5% $12.19M 0.0% ▼ Trim 2 SEC ↗ ×8
38 Bank of New York Mellon Corp 50.51K — $10.50M 0.0% n/c 1 SEC ↗ ×6
39 Man Group plc 47.19K — $9.81M 0.0% n/c 1 SEC ↗ ×4
40 Russell Investments Group, Ltd. 45.98K — $9.56M 0.0% n/c 1 SEC ↗ ×6
41 First Trust Advisors Lp 45.33K — $9.43M 0.0% n/c 1 SEC ↗
42 Universal- Beteiligungs- und… 44.37K — $9.23M 0.0% n/c 1 SEC ↗
43 Barclays Plc 41.54K — $8.64M 0.0% n/c 1 SEC ↗ ×2
44 Nuveen, LLC 35.80K — $7.45M 0.0% n/c 1 SEC ↗ ×2
45 Wells Fargo & Company/Mn 31.85K — $6.63M 0.0% n/c 1 SEC ↗ ×3
46 Swiss National Bank 31.00K — $6.45M 0.0% n/c 1 SEC ↗
47 State Of Wisconsin Investment Board 29.95K — $6.23M 0.0% n/c 1 SEC ↗
48 Two Sigma Investments ✦ 26.55K -36.9% $5.52M 0.0% ▼ Trim 7 SEC ↗
49 Renaissance Technologies ✦ 20.10K New $4.18M 0.0% New 1 SEC ↗
50 Rhumbline Advisers 19.47K — $4.05M 0.0% n/c 1 SEC ↗
51 UBS AM, a distinct business unit of… 18.18K — $3.78M 0.0% n/c 1 SEC ↗ ×4
52 Legal & General Group Plc 15.79K — $3.28M 0.0% n/c 1 SEC ↗ ×2
53 California State Teachers… 15.00K — $3.12M 0.0% n/c 1 SEC ↗
54 Deutsche Bank Ag\ 13.60K — $2.83M 0.0% n/c 1 SEC ↗ ×3
55 Gotham Asset Management ✦ 13.53K -20.2% $2.81M 0.0% ▼ Trim 2 SEC ↗
56 Allspring Global Investments… 12.02K — $2.48M 0.0% n/c 1 SEC ↗ ×2
57 Citadel Advisors ✦ 11.52K +67.7% $2.40M 0.0% ▲ Add 3 SEC ↗
58 Assenagon Asset Management S.A. 9.26K — $1.93M 0.0% n/c 1 SEC ↗
59 Manufacturers Life Insurance… 8.48K — $1.76M 0.0% n/c 1 SEC ↗
60 Mariner, LLC 8.26K — $1.73M 0.0% n/c 1 SEC ↗
61 MIRAE ASSET GLOBAL ETFS HOLDINGS… 7.97K — $1.66M 0.0% n/c 1 SEC ↗
62 Cwm, Llc 7.42K — $1.54M 0.0% n/c 1 SEC ↗
63 Franklin Resources Inc 6.95K — $1.44M 0.0% n/c 1 SEC ↗ ×3
64 Cerity Partners LLC 6.88K — $1.43M 0.0% n/c 1 SEC ↗ ×3
65 Creative Planning 6.62K — $1.38M 0.0% n/c 1 SEC ↗
66 Envestnet Asset Management Inc 6.34K — $1.32M 0.0% n/c 1 SEC ↗
67 Royal Bank Of Canada 5.75K — $1.20M 0.0% n/c 1 SEC ↗ ×6
68 D. E. Shaw & Co. ✦ 3.94K -40.9% $818,857 0.0% ▼ Trim 7 SEC ↗
69 Squarepoint Ops LLC 3.83K — $796,394 0.0% n/c 1 SEC ↗
70 Balyasny Asset Management L.P. 3.52K — $731,501 0.0% n/c 1 SEC ↗
71 Zurcher Kantonalbank (Zurich… 3.32K — $690,319 0.0% n/c 1 SEC ↗
72 LPL Financial LLC 2.93K — $608,787 0.0% n/c 1 SEC ↗
73 ProShare Advisors LLC 2.91K — $605,875 0.0% n/c 1 SEC ↗
74 Mercer Global Advisors Inc /Adv 2.85K — $591,732 0.0% n/c 1 SEC ↗
75 Citigroup Inc 2.77K — $575,092 0.0% n/c 1 SEC ↗ ×2
76 Voya Investment Management Llc 2.74K — $569,893 0.0% n/c 1 SEC ↗
77 Wealth Enhancement Advisory… 2.85K — $523,842 0.0% n/c 1 SEC ↗
78 Jane Street Group, Llc 2.45K — $508,952 0.0% n/c 1 SEC ↗ ×3
79 Cetera Investment Advisers 2.28K — $473,593 0.0% n/c 1 SEC ↗
80 Quantinno Capital Management LP 2.04K — $425,132 0.0% n/c 1 SEC ↗
81 Captrust Financial Advisors 1.93K — $401,213 0.0% n/c 1 SEC ↗
82 Pnc Financial Services Group, Inc. 1.53K — $319,056 0.0% n/c 1 SEC ↗ ×4
83 Bnp Paribas Financial Markets 1.37K — $285,362 0.0% n/c 1 SEC ↗
84 Neuberger Berman Group LLC 1.37K — $284,114 0.0% n/c 1 SEC ↗
85 Assetmark, Inc 1.32K — $274,547 0.0% n/c 1 SEC ↗
86 Connor, Clark & Lunn Investment… 1.16K — $240,436 0.0% n/c 1 SEC ↗
87 Marshall Wace ✦ 1.10K New $228,789 0.0% New 1 SEC ↗ ×2
88 Prudential Financial Inc 1.00K — $208,406 0.0% n/c 1 SEC ↗
89 Osaic Holdings, Inc. 462 — $96,091 0.0% n/c 1 SEC ↗ ×2
90 Simplex Trading, Llc 419 — $87,147 0.0% n/c 1 SEC ↗
91 Us Bancorp \De\ 342 — $71,133 0.0% n/c 1 SEC ↗ ×2
92 Rockefeller Capital Management L.P. 308 — $64,060 0.0% n/c 1 SEC ↗ ×2
93 Nomura Asset Management Co Ltd 160 — $33,278 0.0% n/c 1 SEC ↗
94 Optiver Holding B.V. 66 — $13,727 0.0% n/c 1 SEC ↗
95 Jones Financial Companies Lllp 3 — $624 0.0% n/c 1 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

Renaissance Technologies $4.18M 0.0%
Marshall Wace $228,789 0.0%

Exited

No tracked exits this quarter.

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 305 holders, 19.29M shares, $3.94B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

Insider transactions

Open-market purchases (P)

Aug 07 DELL'OSSO DOMENIC J JR

Officer, Director · President & CEO · 1.60K sh @ 160.61 · $256,976

Open-market sales (S)

Sep 24 Cutt Timothy J.

Director · 2.50K sh · $397,450

Sep 02 Willrath Matthew

Officer · 325 sh · $59,374

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Beneficial ownership
Aug 07 SC 13G — STATE STREET CORP

View original SEC filing ↗

Jul 08 SC 13G/A — BlackRock, Inc.

View original SEC filing ↗

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q4 2025 · Methodology · Get this via the API