Mark Durham
CIK 2073180 · Chief Accounting Officer · last filed 2026-07-16
Mark Durham is a Chief Accounting Officer who has filed 6 SEC Form 4 insider transactions across 1 company since 2025. The most recent filing shows the insider disposed of $645.5K of GTLS on Jul 16, 2026.
"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.
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Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CHART INDUSTRIES INC (GTLS) Delisted | Chief Accounting Officer | 0 | $209.90 | $0 | $0 | 6 | 2026-07-16 |
Recent Filings
6 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-07-16 | CHART INDUSTRIES INC (GTLS) Delisted | Disp (D) | −3,074 | -$645.5K | EDGAR |
| 2026-07-14 | CHART INDUSTRIES INC (GTLS) Delisted | Tax (F) | −107 | -$22.5K | EDGAR |
| 2026-04-02 | CHART INDUSTRIES INC (GTLS) Delisted | Mixed | +344 | -$71.4K | EDGAR |
| 2026-01-06 | CHART INDUSTRIES INC (GTLS) Delisted | Mixed | +984 | -$13.6K | EDGAR |
| 2025-11-13 | CHART INDUSTRIES INC (GTLS) Delisted | Tax (F) | −117 | -$23.7K | EDGAR |
| 2025-07-15 | CHART INDUSTRIES INC (GTLS) Delisted | Grant (A) | +640 | $0 | 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.