Trade Filings
Managers Stocks Filings Superinvestors
Signals Institutional Buying Institutional Selling Insider Activity 13D & 13G Watch Sector Rotation
Tools Stock Screener Manager Screener Compare Managers Consensus Baskets All Research Tools Data API
Learn & AI Learn Ask the Data AI Agents
News ★ Saved
About About us Methodology Contact Disclaimer
Reader
DATA PLANS

Historical data downloads — coming with accounts.

API GATEWAY

Free read-only JSON access to the site's cached data.

Dark mode

🧭 Guided View
New to markets — prices, yields, YTD, market cap? We explain every term as you browse, in plain English. Same data, with the help built in.

⚡ Expert View
You already know the market. Just the data — clean, fast and compact, with no extra explanations. This is the default view.

Interface language
Security record · archived quarter

GPOR

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

172.48 -1.7% mkt cap $3.10B quote delayed (FMP) · as of Aug 25 22:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
12Tracked holders
-1Δ holders
2.95MShares held
$447.20MReported value
+1New positions
−2Exits
Stable Conviction score 42/100 How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth -7.7% · share flow +9.0% · net new positions -8.3%formula
Concentrated accumulation — rising shares among fewer holders

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024

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 · Q3 2024
#ManagerSharesΔ sharesValueTheir weightHeld
1 Wellington Management 1.41M +9.0% $213.28M 0.0% ▲ Add 2 SEC ↗
2 Wellington Management 1.41M +9.0% $213.28M 0.0% ▲ Add 2 SEC ↗
3 Wellington Management 1.41M +9.0% $213.28M 0.0% ▲ Add 2 SEC ↗
4 Wellington Management 1.41M +9.0% $213.28M 0.0% ▲ Add 2 SEC ↗
5 Geode Capital Management (passive) 293.88K +13.5% $44.49M 0.0% ▲ Add 2 SEC ↗
6 Geode Capital Management (passive) 293.88K +13.5% $44.49M 0.0% ▲ Add 2 SEC ↗
7 Adage Capital Partners 265.10K New $40.12M 0.1% New 1 SEC ↗
8 Millennium Management 225.14K -28.6% $34.08M 0.0% ▼ Trim 2 SEC ↗
9 Point72 Asset Management 196.84K +4.1% $29.79M 0.1% ▲ Add 2 SEC ↗
10 T. Rowe Price 131.00K +1.0% $19.83M 0.0% ▲ Add 2 SEC ↗
11 T. Rowe Price 131.00K +1.0% $19.83M 0.0% ▲ Add 2 SEC ↗
12 Bridgewater Associates 116.92K +61.3% $17.70M 0.1% ▲ Add 2 SEC ↗
13 D. E. Shaw & Co. 112.28K +22.9% $16.99M 0.0% ▲ Add 2 SEC ↗
14 D. E. Shaw & Co. 112.28K +22.9% $16.99M 0.0% ▲ Add 2 SEC ↗
15 Two Sigma Investments 91.44K +28.9% $13.84M 0.0% ▲ Add 2 SEC ↗
16 AQR Capital Management 59.90K -43.4% $9.07M 0.0% ▼ Trim 2 SEC ↗
17 AQR Capital Management 59.90K -43.4% $9.07M 0.0% ▼ Trim 2 SEC ↗
18 AQR Capital Management 59.90K -43.4% $9.07M 0.0% ▼ Trim 2 SEC ↗
19 Arrowstreet Capital 41.16K -74.0% $6.23M 0.0% ▼ Trim 2 SEC ↗
20 Renaissance Technologies 11.80K -38.5% $1.79M 0.0% ▼ Trim 2 SEC ↗

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

New buyers

Adage Capital Partners $40.12M 0.1%

Exited

Gotham Asset Management $920,949 was 0.0%
Citadel Advisors $151 was 0.0%

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)

No open-market insider sales in our coverage window.

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: Q3 2024 · Methodology · Get this via the API