CIEN — CIENA CORP COM

Ownership history in Quantbot Technologies LP  ·  23 quarters on record

This page tracks every 13F SEC filing in which Quantbot Technologies LP reported a position in CIENA CORP COM (CIEN). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.34% (2019 Q2)
Avg. % of fund
0.09%
First filed
2011 Q2
Last filed
2025 Q3
Quarters held
23
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 4,406 -7,705 -63.6% 0.02% $642K $145.67
2023 Q1 REDUCED 12,111 -35,260 -74.4% 0.05% $636K $52.52
2022 Q4 ADDED 47,371 +46,609 +6116.7% 0.17% $2.4M $50.98
2021 Q4 REDUCED 762 -24,278 -97.0% 0.00% $58K $76.97
19 older quarters hidden  —  Sign in free or upgrade to Premium to see full history
% of Fund (quarterly)    CIEN price (monthly, adj. close)

Other funds also holding CIEN

As of 2025 Q4 — sorted by position size

Anatole Investment Management Ltd 3Y 19.56% North Growth Management Ltd. 3Y 7Y 9.03% FengHe Fund Management Pte. Ltd. 3Y 8.7% JAT Capital Mgmt LP 3Y 7.55% ThornTree Capital Partners LP 3Y 7Y 6.99% 12th Street Asset Management Company, LLC 3Y 7Y 6.92% Amanah Holdings Trust 6.85% Amitell Capital Pte Ltd 3Y 5.84% TITAN GLOBAL CAPITAL MANAGEMENT USA LLC 3Y 5.61% Analog Century Management LP 3Y 4.93%
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