SEC CIK 1720721
Marmurek Eric S
Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| RBBNview stock → | 543,706 | 2026-05-15 |
Position History — RBBN
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — RBBN
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2026-06-15 | Grant / award (derivative) | 60,000 | $0.00 | 60,000 |
| 2026-06-15 | Grant / award (derivative) | 90,000 | $0.00 | 90,000 |
| 2026-06-15 | Grant / award (derivative) | 150,000 | $0.00 | 150,000 |
| 2026-05-15 | Option exercise (derivative) | 31,646 | $0.00 | 31,645 |
| 2026-05-15 | Option exercise (derivative) | 26,043 | $0.00 | 52,082 |
| 2026-05-15 | Option exercise (derivative) | 23,146 | $0.00 | 0 |
| 2026-05-15 | Tax withholding | 10,247 | $2.63 | 543,706 |
| 2026-05-15 | Option exercise | 26,043 | — | 553,953 |
| 2026-05-15 | Tax withholding | 12,452 | $2.63 | 527,910 |
| 2026-05-15 | Option exercise | 31,646 | — | 540,362 |
| 2026-05-15 | Tax withholding | 9,107 | $2.63 | 508,176 |
| 2026-05-15 | Option exercise | 23,146 | — | 517,823 |
| 2026-04-17 | Option exercise (derivative) | 48,328 | $0.00 | 0 |
| 2026-04-17 | Option exercise (derivative) | 25,651 | $0.00 | 0 |
| 2026-04-17 | Tax withholding | 10,092 | $2.71 | 494,677 |
| 2026-04-17 | Option exercise | 25,651 | — | 504,769 |
| 2026-04-17 | Tax withholding | 19,107 | $2.71 | 479,118 |
| 2026-04-17 | Option exercise | 48,328 | — | 498,135 |
| 2026-04-15 | Option exercise (derivative) | 37,500 | $0.00 | 37,500 |
| 2026-04-15 | Tax withholding | 14,756 | $2.48 | 449,807 |
| 2026-04-15 | Option exercise | 37,500 | — | 464,563 |
| 2025-12-15 | Grant / award (derivative) | 169,721 | $0.00 | 169,721 |
| 2025-10-15 | Option exercise (derivative) | 75,000 | $0.00 | 75,000 |
| 2025-10-15 | Tax withholding | 29,512 | $3.81 | 427,063 |
| 2025-10-15 | Option exercise | 75,000 | — | 456,575 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.