Mark R Ciarfella
CIK 1504654 · EVP - OPERATIONS · last filed 2026-03-09
Mark R Ciarfella is an EVP - OPERATIONS who has filed 59 SEC Form 4 insider transactions across 1 company since 2011. The most recent filing, for SBAC, was dated Mar 9, 2026. Across all open-market trades the lifetime net is −$52.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $8.3M 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.
$8.33M
1
59
-$52.15M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SBAC | EVP - OPERATIONS | 40,683 | $204.79 | $8.33M | -$52.15M | 59 | 2026-03-09 |
Recent Filings
59 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-09 | SBAC | Mixed | +5,212 | -$620.5K | EDGAR |
| 2025-12-09 | SBAC | Mixed | — | -$40.9K | EDGAR |
| 2025-03-10 | SBAC | Mixed | +1,414 | -$183.1K | EDGAR |
| 2025-03-06 | SBAC | Mixed | +2,605 | -$369.3K | EDGAR |
| 2024-12-23 | SBAC | Mixed | — | -$39.7K | EDGAR |
| 2024-12-11 | SBAC | Mixed | — | -$149.0K | EDGAR |
| 2024-03-08 | SBAC | Mixed | +449 | -$57.2K | EDGAR |
| 2024-03-06 | SBAC | Mixed | +3,971 | -$286.4K | EDGAR |
| 2023-12-01 | SBAC | Mixed | — | -$313.7K | EDGAR |
| 2023-11-14 | SBAC | Sell (S) | −1,000 | -$217.6K | EDGAR |