Transaction · 0001123292-26-001329

Claflin Bruce L.

Claflin Bruce L., DIR, reported an open-market or private sale at CIENA CORP involving 2857.000000 shares for an estimated $1016834.87. Reported holdings after the transaction were 8279.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SDIR
CIENCIENA CORP
Filing timeSep 28
Trade dateSep 24, 2026
Filing · SECView on SEC
InsiderProfile
% of reported position traded25.66%Shares sold ÷ (holdings after + shares sold). Estimated position before: 11,136 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$344.19
Pre-filing
1mo ago +11.2%1w ago +0.0%1d ago +3.4%
Returns since
7d30d90d180d1y

CIEN price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
CIEN since 2026-09-28Filed yesterday · 1 day of post-filing data
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001123292-26-001329
Common Stock
Transaction date
Sep 24, 2026
Filed Sep 28, 2026, 09:53 PM · 4d delay
Shares
2.85k sh
$355.91 per share
Estimated value
-$1.01M
Computed from shares × price
Holdings after
8.27k sh
Indirect · By spousal trust

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Cluster Selling Large Holdings Reduction Large Sale
0score
Filing-only score

0

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

Officer NoDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    Reflects a contribution of common stock to an exchange fund in exchange for an interest in the exchange fund. The common stock was valued at $355.91 per share for the purpose of determining the size o…

  2. F2

    The beneficiaries of the trust are the reporting person's spouse and children. The reporting person disclaims beneficial ownership of the securities held by the trust.

  3. F3

    Shares reported include unvested Restricted Stock Units (RSUs).

Original filing · 0001123292-26-001329
Related transactions

0 other filings

Same reporting owner
Recent company activity

0 recent txs

CIEN