Claflin Bruce L. (CIK 1403694) reported 4 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-30). Recent activity: Buy CIEN (605 shares), Sell CIEN (8,461 shares), Sell CIEN (4,386 shares), Buy CIEN (3,738 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-30 | CIENA CORP (CIEN) | Director | Buy | 605 | $0 |
| 2025-09-26 | CIENA CORP (CIEN) | Director | Sell | 8,461 | $1.2M |
| 2025-09-26 | CIENA CORP (CIEN) | Director | Sell | 4,386 | $0 |
| 2025-03-31 | CIENA CORP (CIEN) | Director | Buy | 3,738 | $0 |
Source: SEC Form 4 filings · as of 2026-03-30