Two Sigma Investments’s Ciena CIEN Stock Holding History

Two Sigma Investments’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	$388K	Buy	+1,000	New	+$306K	﹤0.01%	3895
2021 Q4	–	Sell	-19,600	Closed	-$1.01M	–	4344
2021 Q3	$1.01M	Buy	+19,600	New	+$1.09M	﹤0.01%	2616
2021 Q1	–	Sell	-31,100	Closed	-$1.64M	–	3858
2020 Q4	$1.64M	Buy	31,100 +21,100	+211%	+$938K	﹤0.01%	1618
2020 Q3	$397K	Buy	10,000 +1,100	+12%	+$57.9K	﹤0.01%	2402
2020 Q2	$482K	Sell	8,900 -11,600	-57%	-$577K	﹤0.01%	2019
2020 Q1	$816K	Buy	+20,500	New	+$841K	0.01%	1572
2019 Q4	–	Sell	-7,800	Closed	-$306K	–	3674
2019 Q3	$306K	Buy	7,800 +2,300	+42%	+$96.4K	﹤0.01%	2949
2019 Q2	$226K	Buy	+5,500	New	+$212K	﹤0.01%	3028
2018 Q3	–	Sell	-25,200	Closed	-$668K	–	3214
2018 Q2	$668K	Buy	+25,200	New	+$640K	﹤0.01%	2440
2017 Q4	–	Sell	-15,400	Closed	-$338K	–	3121
2017 Q3	$338K	Buy	+15,400	New	+$369K	﹤0.01%	2357
2017 Q2	–	Sell	-19,500	Closed	-$460K	–	2993
2017 Q1	$460K	Sell	19,500 -1,500	-7%	-$36.8K	﹤0.01%	2384
2016 Q4	$513K	Buy	+21,000	New	+$459K	﹤0.01%	2498

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 Investments's CIEN Position: Q1 2026 in Review

Two Sigma Investments reduced its Ciena (CIEN) stake by 83% in Q1 2026, selling an estimated $5.39M and leaving 3,486 shares worth $1.35M. The position accounts for ﹤0.01% of the portfolio, ranked #3037.

Two Sigma Investments first reported a position in CIEN in Q2 2013 and has held it in 29 quarters since. The position peaked at $28.1M in Q1 2025. 1,080 funds tracked by Wall St. Rank hold CIEN as of Q1 2026.

Two Sigma Investments held 3,486 shares of Ciena worth $1.35M as of Q1 2026.
Two Sigma Investments sold 17,615 Ciena shares in Q1 2026, an estimated $5.39M.
Ciena made up ﹤0.01% of Two Sigma Investments's portfolio in Q1 2026, its #3037 holding.
Two Sigma Investments first reported a position in Ciena in Q2 2013 and has held it in 29 quarters since.
Two Sigma Investments's Ciena position peaked at $28.1M in Q1 2025.
1,080 funds tracked by Wall St. Rank held Ciena as of Q1 2026.

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