Two Sigma Securities’s Ciena CIEN Stock Holding History

Two Sigma Securities’s Portfolio CIEN Stock Details CIEN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$490K	Sell	1,262 -1,684	-57%	-$515K	0.06%	481
2025 Q4	$689K	Buy	+2,946	New	+$572K	0.09%	281
2025 Q2	–	Sell	-11,870	Closed	-$717K	–	1572
2025 Q1	$717K	Buy	+11,870	New	+$938K	0.11%	233
2024 Q3	–	Sell	-8,079	Closed	-$426K	–	2952
2024 Q2	$389K	Buy	8,079 +2,242	+38%	+$106K	﹤0.01%	1757
2024 Q1	$289K	Buy	+5,837	New	+$308K	﹤0.01%	1994
2023 Q4	–	Sell	-28,027	Closed	-$1.24M	–	3086
2023 Q3	$1.32M	Buy	28,027 +21,100	+305%	+$930K	0.01%	877
2023 Q2	$294K	Buy	+6,927	New	+$315K	﹤0.01%	1901
2022 Q1	–	Sell	-3,578	Closed	-$275K	–	2148
2021 Q4	$275K	Buy	+3,578	New	+$221K	0.01%	867
2021 Q2	–	Sell	-4,653	Closed	-$256K	–	1507
2021 Q1	$255K	Buy	+4,653	New	+$250K	0.01%	520
2020 Q4	–	Sell	-6,193	Closed	-$246K	–	1697
2020 Q3	$246K	Buy	+6,193	New	+$326K	0.01%	989
2019 Q4	–	Sell	-5,515	Closed	-$210K	–	2355
2019 Q3	$216K	Sell	5,515 -7,479	-58%	-$314K	﹤0.01%	1797
2019 Q2	$534K	Buy	+12,994	New	+$500K	0.01%	1079

Other funds holding CIEN

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Two Sigma Securities's CIEN Position: Q1 2026 in Review

Two Sigma Securities reduced its Ciena (CIEN) stake by 57% in Q1 2026, selling an estimated $515K and leaving 1,262 shares worth $490K. The position accounts for 0.06% of the portfolio, ranked #481.

Two Sigma Securities first reported a position in CIEN in Q2 2019 and has held it in 12 quarters since. The position peaked at $1.32M in Q3 2023. 1,081 funds tracked by Wall St. Rank hold CIEN as of Q1 2026.

Two Sigma Securities held 1,262 shares of Ciena worth $490K as of Q1 2026.
Two Sigma Securities sold 1,684 Ciena shares in Q1 2026, an estimated $515K.
Ciena made up 0.06% of Two Sigma Securities's portfolio in Q1 2026, its #481 holding.
Two Sigma Securities first reported a position in Ciena in Q2 2019 and has held it in 12 quarters since.
Two Sigma Securities's Ciena position peaked at $1.32M in Q3 2023.
1,081 funds tracked by Wall St. Rank held Ciena as of Q1 2026.

Based on Two Sigma Securities's 13F filing for Q1 2026, filed 15 May 2026.