Christopher Burke Gaskill
CIK 1854269 · VP & General Counsel · last filed 2026-01-29
Christopher Burke Gaskill is a VP & General Counsel who has filed 19 SEC Form 4 insider transactions across 2 companies since 2021. The most recent filing, for CSL, was dated Jan 29, 2026. Across all open-market trades the lifetime net is −$477.4K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $299.3K across reported positions.
"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.
SUM 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
1550 WYNKOOP STREET, 3RD FLOOR
DENVER, CO 08202
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CSL | VP & General Counsel | 865 | $345.97 | $299.3K | $0 | 1 | 2026-01-29 |
| Summit Materials, Inc. (SUM) Delisted | See Remarks | 0 | $52.49 | $0 | -$477.4K | 17 | 2025-02-10 |
Recent Filings
19 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-01-29 | CSL | Grant (A) | +865 | $0 | EDGAR |
| 2025-02-10 | Summit Materials, Inc. (SUM) Delisted | Disp (D) | −44,693 | -$2.35M | EDGAR |
| 2025-01-17 | Summit Materials, Inc. (SUM) Delisted | Mixed | +4,641 | -$200.9K | EDGAR |
| 2024-12-11 | Summit Materials, Inc. (SUM) Delisted | Mixed | −169 | -$41.5K | EDGAR |
| 2024-12-10 | — | Notice (144) | −1,536 | -$78.2K | EDGAR |
| 2024-03-08 | Summit Materials, Inc. (SUM) Delisted | Mixed | +8,301 | -$273.8K | EDGAR |
| 2024-03-04 | Summit Materials, Inc. (SUM) Delisted | Mixed | +4,755 | -$164.7K | EDGAR |
| 2023-12-06 | Summit Materials, Inc. (SUM) Delisted | Gift (G) | −224 | $0 | EDGAR |
| 2023-03-01 | Summit Materials, Inc. (SUM) Delisted | Mixed | +4,628 | -$112.9K | EDGAR |
| 2023-02-24 | Summit Materials, Inc. (SUM) Delisted | Grant (A) | — | $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.