Sam Bucci
CIK 1824854 · EVP, Chief Operating Officer · last filed 2026-06-17
"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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Disclosed Exposure
$1.10M
Companies
1
Total Filings
27
Lifetime Open-Market Net
-$291.0K
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 |
|---|---|---|---|---|---|---|---|
| RBBN | EVP, Chief Operating Officer | 536,035 | $2.05 | $1.10M | -$291.0K | 27 | 2026-06-17 |
Recent Filings · Page 2 of 3
27 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-03-18 | RBBN | Mixed | +5,124 | -$16.7K | EDGAR |
| 2024-01-19 | RBBN | Mixed | +37,492 | -$126.3K | EDGAR |
| 2023-10-23 | RBBN | Mixed | +12,412 | -$30.7K | EDGAR |
| 2023-09-19 | RBBN | Mixed | +11,465 | -$37.4K | EDGAR |
| 2023-04-19 | RBBN | Mixed | +24,825 | -$78.4K | EDGAR |
| 2023-03-17 | RBBN | Mixed | +41,742 | -$178.4K | EDGAR |
| 2023-01-19 | RBBN | Grant (A) | — | $0 | EDGAR |
| 2022-09-19 | RBBN | Mixed | +11,466 | -$40.9K | EDGAR |
| 2022-06-17 | RBBN | Grant (A) | — | $0 | EDGAR |
| 2022-05-04 | RBBN | Sell (S) | −40,000 | -$138.8K | EDGAR |
Form 4 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.
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.
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.