Security key
559663109
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 9,778,948
- Total 13F value
- $250,449,862
- Share change
- +718,943
- SEC-reported price per share
- $25.58
- Number of holders
- 110
- Value change
- +$17,276,171
- Number of buys
- 49
- Number of sells
- 49
- Shares outstanding
- 184,949,154
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
110
Top holders
10
MGY full security history
Ownership snapshot
Full 13F holder table
Magnolia Oil & Gas Corp SEC filings
Magnolia Oil & Gas Corp company facts
Broader feeds
Reporting periods
Holder history for CUSIP 559663109
Recent filing periods:
Ownership snapshot
Top reported holders of MGY - Magnolia Oil & Gas Corp - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
30 Jun 2026
13F
13D/G
3/4/5
Lead comparable stake: 14%
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 14%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
14%
VANGUARD PORTFOLIO MANAGEMENT LLC
8.4%
STATE STREET CORP
5.1%
FIRST TRUST PORTFOLIOS LP
1.8%
Arcilia Acosta
0.07%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
14%
from 13D/G
|
$931,035,564
29,491,149 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
8.4%
|
$414,310,148
15,517,234 shares
|
+$65,324,914 | 30 Jun 2026 |
| STATE STREET CORP |
13F
13D/G
Company · STATE STREET CORPORATION
|
5.1%
from 13D/G
|
$299,797,402
9,496,275 shares
|
— | 31 Mar 2026 |
| FIRST TRUST PORTFOLIOS LP |
13D/G
First Trust Portfolios L.P.
|
1.8%
|
$73,923,001
3,411,306 shares
|
-$335,308,470 | 31 Mar 2025 |
| Arcilia Acosta |
3/4/5
Director
|
0.07%
|
$4,250,616
134,641 shares
|
-$559,777 | 01 Jun 2026 |
| Dan F. Smith |
3/4/5
Director
|
0.07%
|
$4,016,714
127,232 shares
|
-$522,216 | 08 May 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
110
Shares
9,778,948
Rows available
110
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
405
Q2 2026 holders
110
Holder diff
-295
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend