Timothy Go
CIK 1663266 · CEO and President · last filed 2026-01-06
Timothy Go is a CEO and President who has filed 58 SEC Form 4 insider transactions across 4 companies since 2016. The most recent filing, for DINO, was dated May 27, 2026. Across all open-market trades the lifetime net is +$468.3K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $61.1M across reported positions. 6 SEC filings were submitted jointly with HollyFrontier 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.
CLMT 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 1400
DALLAS, TX 75219
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| DINO | CEO and President | 376,075 | $125.29 | $47.12M | $99.9K | 14 | 2026-01-06 |
| CE | Director | 3,876 | $47.49 | $184.1K | $48.1K | 6 | 2025-11-13 |
| HollyFrontier Corp (HFC) Delisted | President and COO | 115,692 | $36.39 | $4.21M | $0 | 5 | 2021-12-03 |
| CLMT | Chief Executive Officer | 239,612 | $57.75 | $13.84M | $320.3K | 25 | 2020-03-17 |
Recent Filings
58 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-27 | DINO | Notice (144) | −91,966 | -$6.19M | EDGAR |
| 2026-05-27 | DINO | Notice (144/A) | −4,768 | -$340.0K | EDGAR |
| 2026-05-27 | DINO | Notice (144/A) | −129,915 | -$9.02M | EDGAR |
| 2026-05-27 | DINO | Notice (144/A) | −16,184 | -$1.12M | EDGAR |
| 2026-05-27 | — | Notice (144) | −129,915 | -$9.02M | EDGAR |
| 2026-05-27 | — | Notice (144) | −4,768 | -$340.0K | EDGAR |
| 2026-05-27 | DINO | Notice (144) | −16,184 | -$1.12M | EDGAR |
| 2026-05-26 | DINO | Notice (144) | −17,961 | -$1.25M | EDGAR |
| 2026-01-06 | DINO | Grant (A) | +63,615 | $0 | EDGAR |
| 2025-12-03 | DINO | Mixed | −3,362 | -$2.18M | 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.