Timothy D. Yang
CIK 1627951 · EVP, CHIEF LEGAL & COMM & SEC · last filed 2026-09-25
Timothy D. Yang is an EVP, CHIEF LEGAL & COMM & SEC who has filed 60 SEC Form 4 insider transactions across 3 companies since 2015. The most recent filing, for MGY, was dated Sep 25, 2026. Across all open-market trades the lifetime net is −$4.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $14.5M across reported positions. 49 SEC filings were submitted jointly with Magnolia Oil & Gas Corp.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
MGY price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
SUITE 1600
HOUSTON, TX 77002
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MGY | EVP, CHIEF LEGAL & COMM & SEC | 534,783 | $26.46 | $14.15M | -$4.39M | 45 | 2026-09-25 |
| Magnolia Oil & Gas Corp (MGY.WS) Delisted | See Remarks | 338,818 | — | — | $223.4K | 3 | 2019-02-27 |
| NFX | General Counsel and Secretary | 23,616 | $16.45 | $388.5K | $0 | 9 | 2018-09-04 |
Recent Filings
60 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-09-25 | MGY | Mixed | +8,122 | -$130.4K | EDGAR |
| 2026-03-11 | MGY | Sell (S) | −150,000 | -$4.39M | EDGAR |
| 2026-03-09 | MGY | Notice (144) | −150,000 | -$4.38M | EDGAR |
| 2026-03-04 | MGY | Tax (F) | −15,156 | -$432.7K | EDGAR |
| 2026-02-09 | MGY | Mixed | +57,142 | -$849.5K | EDGAR |
| 2025-03-04 | MGY | Mixed | −40,766 | -$907.5K | EDGAR |
| 2025-02-14 | MGY | Grant (A) | +36,246 | $0 | EDGAR |
| 2024-03-05 | MGY | Tax (F) | −44,091 | -$1.01M | EDGAR |
| 2024-02-15 | MGY | Grant (A) | +43,124 | $0 | EDGAR |
| 2023-03-03 | MGY | Tax (F) | −15,045 | -$336.4K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.