Corrine Savill
CIK 1837524 · Chief Business Officer · last filed 2026-02-19
Corrine Savill is a Chief Business Officer who has filed 13 SEC Form 4 insider transactions across 1 company since 2022. The most recent filing, for CGEM, was dated Feb 19, 2026. Across all open-market trades the lifetime net is −$2.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.5M 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.
CGEM 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
ONE MAIN STREET SUITE 1350
CAMBRIDGE, MA 02142
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CGEM | Chief Business Officer | 240,990 | $14.54 | $3.50M | -$2.54M | 10 | 2026-02-19 |
Recent Filings
13 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-02-19 | CGEM | Grant (A) | — | $0 | EDGAR |
| 2025-02-21 | CGEM | Grant (A) | +37,500 | $0 | EDGAR |
| 2024-02-23 | CGEM | Grant (A) | +37,500 | $0 | EDGAR |
| 2024-02-02 | CGEM | Mixed | — | -$475.2K | EDGAR |
| 2024-02-01 | CGEM | Notice (144) | −40,000 | -$605.6K | EDGAR |
| 2024-01-30 | CGEM | Mixed | — | -$391.6K | EDGAR |
| 2024-01-29 | CGEM | Notice (144) | −40,000 | -$522.8K | EDGAR |
| 2024-01-24 | CGEM | Mixed | −4,125 | -$338.2K | EDGAR |
| 2024-01-22 | CGEM | Notice (144) | −40,000 | -$460.4K | EDGAR |
| 2023-02-21 | CGEM | Grant (A) | +20,500 | $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.