Transactions
9
Insider / Magnolia Oil & Gas Corp
Acosta Arcilia
Director at Magnolia Oil & Gas Corp
- Company
- Magnolia Oil & Gas Corp
- First filing on record
- December 2, 2025
- Latest trade on record
- September 1, 2026
- SEC filings
- EDGAR ↗
Acosta Arcilia, Director at Magnolia Oil & Gas Corp, has disclosed 9 transactions in MGY, VST since December 2, 2025: 0 purchases (0 open-market buys) and 3 sales, worth about $3.1M at the reported prices. The latest was filed September 3, 2026, 2 days after the trade; 2 filings were late against the 2-business-day Form 4 deadline.
Open-market buys
0
Sales
3
Avg. disclosure lag
3.0d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months Acosta Arcilia made no purchases and 3 sales worth $3.1M, plus 6 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Acosta Arcilia has traded 2 stocks on record; the largest by dollars is VST.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
1 of 8 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| A | Grant or award | 6 | 7,885 | — |
| S | Open-market sale | 3 | 34,235 | $3.1M |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 8 | 0 | 3 · $3.1M |
| 2025 | 1 | 0 | 0 |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| MGY | Other A | September 1, 2026 | September 3, 2026 | 2d | 80 | — | — | Form 4 ↗ | ||
| VST | Sell S | June 18, 2026 | June 23, 2026 | 5d | 7,500 | $170 | $1.3M | late10b5-1 plan | Form 4 ↗ | |
| VST | Sell S | June 18, 2026 | June 23, 2026 | 5d | 7,500 | $165 | $1.2M | late10b5-1 plan | Form 4 ↗ | |
| MGY | Other A | June 1, 2026 | June 3, 2026 | 2d | 72 | — | — | Form 4 ↗ | ||
| VST | Other A | May 15, 2026 | May 19, 2026 | 4d | 1,268 | — | — | Form 4 ↗ | ||
| MGY | Other A | May 8, 2026 | May 12, 2026 | 4d | 6,320 | — | — | Form 4 ↗ | ||
| MGY | Sell S | March 9, 2026 | March 11, 2026 | 2d | 19,235 | $29 | $560K | Form 4 ↗ | ||
| MGY | Other A | March 2, 2026 | March 4, 2026 | 2d | 69 | — | — | Form 4 ↗ | ||
| MGY | Other A | December 1, 2025 | December 2, 2025 | 1d | 76 | — | — | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| September 3, 2026 | Form 4 | 0001629039-26-000019 | 1 | published | EDGAR ↗ |
| June 23, 2026 | Form 4 | 0001629039-26-000016 | 2 | published | EDGAR ↗ |
| June 3, 2026 | Form 4 | 0001629039-26-000014 | 1 | published | EDGAR ↗ |
| May 19, 2026 | Form 4 | 0001629039-26-000010 | 1 | published | EDGAR ↗ |
| May 12, 2026 | Form 4 | 0001629039-26-000008 | 1 | published | EDGAR ↗ |
| March 11, 2026 | Form 4 | 0001629039-26-000005 | 1 | published | EDGAR ↗ |
| March 4, 2026 | Form 4 | 0001629039-26-000003 | 1 | published | EDGAR ↗ |
| December 2, 2025 | Form 4 | 0001629039-25-000004 | 1 | published | EDGAR ↗ |
Other insiders at Magnolia Oil & Gas Corp
- BURKE JAMES A President and CEO 97 rows
- HUDSON SCOTT A EVP & President Vistra Retail 12 rows
- Corales Brian SVP & CHIEF FINANCIAL OFFICER 10 rows
- Stavros Christopher G CEO & CHAIRMAN 10 rows
- Yang Timothy D. EVP - GENERAL COUNSEL & SEC 10 rows
- Moore Stephanie Zapata EVP and General Counsel 8 rows
- Kirby Carrie Lee EVP and Chief Admin. Officer 7 rows
- Moldovan Kristopher E. EVP and CFO 7 rows
- Dore Stacey H EVP & Chief Strategy Officer 5 rows
- Montemayor Margaret SVP, Chief Accounting Officer 5 rows
Everyone on file, with contracts and lobbying under the company's name: Magnolia Oil & Gas Corp.
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Rule 10b5-1 trading plans The plan must be set up when the insider has no important non-public information.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 8 | 9 | December 2, 2025 | September 3, 2026 | Form 4 list on EDGAR |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.