BC
Bruce L. Claflin (Director) filed 1 Form 4 report in the trailing twelve months (0 purchases, 1 sale), most often in Ciena Corporation (CIEN). The largest single filing was $1.0M of CIEN (2,857 sh × $355.91, as filed), executed Sep 24. Data as of Nov 8 2026.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
1
0 buys · 1 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$1.0M
shares × price, as filed
Last traded
Sep 24
Filed Sep 28
Median ADV $954.6M across their filed names
Open performance→Volume by month
Buys $0
Sells $3.6M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Technology
1 filing
Sector per market data · by filing · past 12 months
Most traded names
CIEN
Ciena Corporation
CIEN · 0 buys · 3 sells
3 filings
Recent filings
CIENSALE
Ciena Corporation
View filing →
$1.0M2,857 sh × $355.91
Exec Sep 24
Filed Sep 28 · 5:53 PM ET CIENSALE Ciena Corporation View filing → $1.2M
8,461 sh × $140.12
Exec Sep 24 2025
Filed Sep 26 2025 · 5:30 PM ET CIENSALE Ciena Corporation View filing → $1.4M
16,912 sh × $84.96
Exec Jan 6 2025
Filed Jan 8 2025 · 5:30 PM ET