Mark R Ciarfella
CIK 1504654 · EVP - OPERATIONS · last filed 2026-03-09
"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.
Loading insider history…
Disclosed Exposure
$8.33M
Companies
1
Total Filings
59
Lifetime Open-Market Net
-$52.15M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 3 of 6
59 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-08-13 | SBAC | Mixed | — | -$546.3K | EDGAR |
| 2021-06-11 | SBAC | Mixed | — | -$1.23M | EDGAR |
| 2021-03-09 | SBAC | Mixed | +1,759 | -$120.6K | EDGAR |
| 2021-03-08 | SBAC | Grant (A) | — | $0 | EDGAR |
| 2021-03-01 | SBAC | Mixed | +509 | -$36.1K | EDGAR |
| 2020-06-03 | SBAC | Mixed | — | -$969.3K | EDGAR |
| 2020-05-29 | SBAC | Mixed | — | -$998.7K | EDGAR |
| 2020-05-27 | SBAC | Mixed | — | -$196.6K | EDGAR |
| 2020-04-10 | SBAC | Mixed | — | -$1.57M | EDGAR |
| 2020-03-06 | SBAC | Mixed | +2,239 | -$2.05M | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.