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Public ownership evidence

Ciena Corporation (CIEN) Ownership Disclosures

Read CIEN insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-11-042026-11-02SMITH GARY BS2,952Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-11-02 and its public availability date is 2026-11-04. Subtracting those calendar dates gives 2 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001032553-26-000048 ↗SEC 0001998826-26-000023 ↗SEC 0001998460-26-000016 ↗

Recent Form 4 activity

Inspect all 23 displayed rows: Recent Form 4 activity

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2026-11-042026-11-02SMITH GARY BS2,952Not reported
2026-10-192026-10-15Gage BrodieS1,200Not reported
2026-10-192026-10-15DiPerna DinoS445Not reported
2026-10-192026-10-15DiPerna DinoS445Not reported
2026-10-192026-10-15SMITH GARY BS2,952Not reported
2026-10-192026-10-15Rothenstein David MS2,500Not reported
2026-10-132026-10-01SMITH GARY BS2,952Not reported
2026-10-062026-10-01Graff Marc D.S97Not reported
2026-10-062026-10-01Kosaraju SheelaS2,101Not reported
2026-10-062026-10-01Phipps JasonS2,629Not reported
2026-09-292026-09-25Cumello JosephS1,586Not reported
2026-09-282026-09-24Claflin Bruce L.S2,857Not reported
2026-09-252026-09-23NEVENS THOMAS MICHAELS3,738Not reported
2026-09-172026-09-15SMITH GARY BS2,952Not reported
2026-09-172026-09-15Rothenstein David MS2,500Not reported
2026-09-172026-09-15Gage BrodieS1,200Not reported
2026-09-172026-09-16DiPerna DinoS249Not reported
2026-09-172026-09-15DiPerna DinoS249Not reported
2026-09-032026-09-01SMITH GARY BS2,952Not reported
2026-08-192026-08-14Graff Marc D.S4,995Not reported
2026-08-192026-08-17Gage BrodieS1,200Not reported
2026-08-192026-08-14Rothenstein David MS2,500Not reported
2026-08-192026-08-17SMITH GARY BS2,952Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Cornerstone Financial Management LLC2026-06-302026-08-2941$20,113None
Cornerstone Financial Management LLC2026-03-312026-08-2924$9,318None
Cornerstone Financial Management LLC2025-12-312026-08-2921$4,911None
Advisors Asset Management, Inc.2021-12-312026-08-2811,720$902,088None
Advisors Asset Management, Inc.2020-06-302026-08-2811,612$628,906None
Advisors Asset Management, Inc.2022-06-302026-08-283,768$172,000None
Advisors Asset Management, Inc.2021-09-302026-08-2816,642$855,000None
Corient Private Wealth LP2026-06-302026-08-2831,252$15,330,998None
Corient Private Wealth LP2026-06-302026-08-283,200$1,569,792None
Formuepleje A/S2026-06-302026-08-281,648$808,443None
Principia Wealth Advisory, LLC2026-06-302026-08-2712$5,887None
Principia Wealth Advisory, LLC2026-03-312026-08-2712$4,659None
Advisors Asset Management, Inc.2024-03-312026-08-27683$33,774None
Advisors Asset Management, Inc.2025-03-312026-08-275,109$308,737None
Advisors Asset Management, Inc.2022-09-302026-08-273,730$151,000None
Advisors Asset Management, Inc.2020-12-312026-08-2724,950$1,319,000None
Advisors Asset Management, Inc.2022-03-312026-08-276,839$414,649None
Advisors Asset Management, Inc.2023-06-302026-08-27564$23,964None
Advisors Asset Management, Inc.2023-09-302026-08-27698$32,987None
Advisors Asset Management, Inc.2021-03-312026-08-2722,526$1,232,623None
Advisors Asset Management, Inc.2021-06-302026-08-2721,561$1,227,000None
Advisors Asset Management, Inc.2020-09-302026-08-2717,158$681,001None
Advisors Asset Management, Inc.2025-09-302026-08-276,599$961,276None
Advisors Asset Management, Inc.2023-12-312026-08-27691$31,102None
Dakota Wealth Management2026-03-312026-08-276,001$2,329,769None
Advus Financial Partners, LLC2026-06-302026-08-26575$282,072None
Groupe la Francaise2026-06-302026-08-2624,275$11,911,470None
Advisors Asset Management, Inc.2019-12-312026-08-264,996$213,279None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2623,740$11,645,894None
Advisors Asset Management, Inc.2025-06-302026-08-256,702$545,074None
CYBER HORNET ETFs LLC2026-06-302026-08-25386$189,356None
First Eagle Investment Management, LLC2026-06-302026-08-252,000$981,120None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25213,528$104,748,296None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25104,748,296$213,528,000None
Advisors Asset Management, Inc.2024-06-302026-08-22628$30,257None
Advisors Asset Management, Inc.2024-12-312026-08-223,537$299,973None
Advisors Asset Management, Inc.2025-12-312026-08-226,526$1,526,236None
Advisors Asset Management, Inc.2020-03-312026-08-225,335$212,386None
WEST MICHIGAN ADVISORS, LLC2026-06-302026-08-228,375$4,108,440None
Assenagon Asset Management S.A.2026-06-302026-08-22214,002$104,980,821None
HARVEY CAPITAL MANAGEMENT INC2026-06-302026-08-221,200$588,672None
Harvest Fund Management Co., Ltd2026-06-302026-08-21125$61,000None
Kingsview Wealth Management, LLC2026-06-302026-08-20511$250,676None
Archer Investment Corp2026-06-302026-08-201,518$744,670None
CANTOR FITZGERALD, L. P.2026-06-302026-08-2012,249$6,008,869None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2037,220$18,258,689None
Beacon Pointe Advisors, LLC2026-06-302026-08-197,387$3,623,767None
Copia Wealth Management2026-06-302026-08-1924$11,773None
Advisors Asset Management, Inc.2019-03-312026-08-198,296$309,773None
Advisors Asset Management, Inc.2019-09-302026-08-191,715$67,279None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗Corient Private Wealth LP ↗Formuepleje A/S ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.