Magnolia Oil & Gas Corp MGY
CIK 0001698990 · CUSIP 559663109
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $703.93M 27,867,197 shares | 0.01% | -630.44K(-2.20%)Reduced | SEC filing ↗ May 2, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $515.50M 20,407,703 shares | 0.01% | -530.50K(-2.50%)Reduced | SEC filing ↗ May 9, 2025 | ▾ |
| 03 | AMERICAN CENTURY COMPANIES INC CIK 748054 · View history | $265.29M 10,502,353 shares | 0.16% | +562.22K(+5.70%)Added | SEC filing ↗ May 13, 2025 | ▾ |
| 04 | STATE STREET CORP CIK 93751 · View history | $249.01M 9,857,960 shares | 0.01% | -173.65K(-1.70%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 05 | T. Rowe Price Investment Management, Inc. CIK 1897612 · View history | $183.42M 7,261,115 shares | 0.12% | -689.88K(-8.70%)Reduced | SEC filing ↗ May 14, 2025 | ▾ |
| 06 | JANUS HENDERSON GROUP PLC CIK 1274173 · View history | $162.50M 6,450,789 shares | 0.09% | +53.91K(+0.80%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 07 | MACQUARIE GROUP LTD CIK 1418333 · Amended · View history | $145.80M 5,771,833 shares | 0.18% | +252.60K(+4.60%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 08 | ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history | $136.35M 5,397,901 shares | 0.05% | -138.51K(-2.50%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 09 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $135.54M 5,365,892 shares | 0.03% | +597.85K(+12.50%)Added | SEC filing ↗ May 13, 2025 | ▾ |
| 10 | WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history | $126.74M 5,017,528 shares | 0.02% | -3.12K(-0.10%)Reduced | SEC filing ↗ May 13, 2025 | ▾ |
| 11 | VICTORY CAPITAL MANAGEMENT INC CIK 1040188 · View history | $110.69M 4,382,053 shares | 0.11% | -290.55K(-6.20%)Reduced | SEC filing ↗ May 2, 2025 | ▾ |
| 12 | BANK OF AMERICA CORP /DE/ CIK 70858 · View history | $109.68M 4,342,204 shares | 0.01% | +1.80M(+70.80%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 13 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $108.48M 4,293,499 shares | 0.01% | +157.04K(+3.80%)Added | SEC filing ↗ May 13, 2025 | ▾ |
| 14 | SILVERCREST ASSET MANAGEMENT GROUP LLC CIK 1232395 · View history | $96.02M 3,801,297 shares | 0.69% | -21.92K(-0.60%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 15 | GW&K Investment Management, LLC CIK 1082917 · View history | $86.51M 3,424,841 shares | 0.80% | -59.31K(-1.70%)Reduced | SEC filing ↗ May 5, 2025 | ▾ |
| 16 | Allspring Global Investments Holdings, LLC CIK 1890906 · View history | $81.00M 3,175,387 shares | 0.14% | +110.96K(+3.60%)Added | SEC filing ↗ Apr 24, 2025 | ▾ |
| 17 | Boston Trust Walden Corp CIK 1534866 · View history | $80.29M 3,178,608 shares | 0.59% | +88.02K(+2.80%)Added | SEC filing ↗ Apr 21, 2025 | ▾ |
| 18 | TD Asset Management Inc CIK 1056053 · View history | $76.62M 3,033,267 shares | 0.07% | -81.94K(-2.60%)Reduced | SEC filing ↗ May 7, 2025 | ▾ |
| 19 | SYSTEMATIC FINANCIAL MANAGEMENT LP CIK 1085936 · View history | $75.52M 2,989,746 shares | 2.15% | -43.53K(-1.40%)Reduced | SEC filing ↗ May 14, 2025 | ▾ |
| 20 | MORGAN STANLEY CIK 895421 · View history | $75.16M 2,975,635 shares | 0.01% | +149.05K(+5.30%)Added | SEC filing ↗ May 15, 2025 | ▾ |
Showing 20 / 408 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 408 reporting institutions.
This page includes 20 of 408 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
＋ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 408 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"559663109","quarter":"2025Q1","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.