Eric S Marmurek
CIK 1720721 · EVP, Chief Financial Officer · last filed 2026-05-19
"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
$1.39M
Companies
2
Total Filings
44
Lifetime Open-Market Net
-$81.9K
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 Financial Officer | 517,823 | $2.69 | $1.39M | -$81.9K | 43 | 2026-05-19 |
| Ribbon Communications Inc. (SONS) Delisted | Principal Accounting Officer | 29,148 | — | — | $0 | 1 | 2017-11-17 |
Recent Filings · Page 3 of 5
44 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2022-06-17 | RBBN | Grant (A) | — | $0 | EDGAR |
| 2022-04-20 | RBBN | Grant (A) | — | $0 | EDGAR |
| 2022-04-18 | RBBN | Mixed | +4,582 | -$4.6K | EDGAR |
| 2022-03-17 | RBBN | Mixed | +33,965 | -$34.5K | EDGAR |
| 2021-10-19 | RBBN | Mixed | +4,582 | -$9.4K | EDGAR |
| 2021-09-17 | RBBN | Mixed | +11,675 | -$23.6K | EDGAR |
| 2021-04-16 | RBBN | Mixed | +4,583 | -$12.5K | EDGAR |
| 2021-03-17 | RBBN | Mixed | +23,383 | -$64.7K | EDGAR |
| 2021-03-02 | RBBN | Grant (A) | — | $0 | EDGAR |
| 2020-12-10 | RBBN | Sell (S) | −8,304 | -$59.7K | 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.