Arcilia Acosta is Director at Magnolia Oil & Gas Corp (MGY). They have made 14 open-market trades across 5 companies since 2015, most recently 2026-09-01.
CIK 0001629039
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
10 open-market purchases totalling $3.5M since 2015, against 4 sales. Across 10 scored buys the stock is up 4.8% at ninety days, and 2.6 points ahead of the S&P over the same stretch.
10 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| VST | 32,607 | $5.0M |
| MGY | 134,721 | $3.4M |
| LTXB | 28,708 | $1.2M |
| OGS | 5,537 | $418K |
| VBTX | 3,617 | $109K |
| Total | $10.1M |
Shares reported on the most recent Form 4, priced at the 2026-09-03 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 50% | 60% | 50% |
| Avg Move | -3.1% | +2.5% | +4.8% |
| Alpha | -2.2% | +0.4% | +2.6% |
| Scored | 10 | 10 | 10 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| VST | SELL · 10b5-1 | 2026-06-18 | 2026-06-23 | $167.52 | $2.5M | -3.6% | +3.6% | -13.6% |
| MGY | SELL | 2026-03-09 | 2026-03-11 | $29.10 | $560K | +6.4% | +2.9% | -6.1% |
| VBTX | SELL | 2025-07-29 | 2025-07-31 | $32.14 | $468K | +2.3% | +9.8% | N/A |
| VBTX | SELL | 2025-07-24 | 2025-10-22 | $32.36 | $3.6M | N/A | N/A | N/A |
| VBTX | BUY | 2022-03-08 | 2022-03-09 | $38.00 | $1.0M | +5.0% | -8.8% | -8.1% |
| VBTX | BUY | 2021-09-07 | 2021-09-08 | $35.85 | $538K | -3.6% | +11.6% | +11.3% |
| VBTX | BUY | 2021-03-15 | 2021-03-17 | $32.79 | $328K | -3.3% | +2.0% | +8.9% |
| VST | BUY | 2020-06-22 | 2020-06-24 | $19.58 | $392K | +2.2% | +1.6% | -4.1% |
| OGS | BUY | 2018-08-30 | 2018-09-06 | $78.94 | $200K | +1.5% | +3.1% | +6.5% |
| MGY | BUY | 2018-08-30 | 2018-08-31 | $13.91 | $449K | +1.1% | +7.4% | -11.0% |
| LTXB | BUY | 2017-08-28 | 2017-08-31 | $36.01 | $219K | +3.6% | +10.1% | +16.2% |
| LTXB | SELL | 2016-11-30 | 2016-12-02 | $39.35 | $98K | +2.0% | +6.4% | +4.4% |
| LTXB | BUY | 2016-01-29 | 2016-02-01 | $19.52 | $100K | -10.5% | -0.8% | +28.9% |
| LTXB | BUY | 2015-08-26 | 2015-08-27 | $27.06 | $244K | -13.2% | -0.5% | -0.5% |
| LTXB | BUY | 2015-02-26 | 2015-02-27 | $23.10 | $46K | -13.2% | -0.5% | -0.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.