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	$738K	Buy	+1,900	New	+$581K	﹤0.01%	3463
2021 Q4	–	Sell	-12,200	Closed	-$626K	–	4343
2021 Q3	$626K	Buy	+12,200	New	+$678K	﹤0.01%	3043
2021 Q1	–	Sell	-11,500	Closed	-$608K	–	3857
2020 Q4	$608K	Buy	11,500 +3,500	+44%	+$156K	﹤0.01%	2360
2020 Q3	$318K	Sell	8,000 -900	-10%	-$47.4K	﹤0.01%	2552
2020 Q2	$482K	Sell	8,900 -17,300	-66%	-$860K	﹤0.01%	2018
2020 Q1	$1.04M	Buy	+26,200	New	+$1.07M	0.01%	1377
2019 Q4	–	Sell	-12,600	Closed	-$494K	–	3673
2019 Q3	$494K	Sell	12,600 -2,400	-16%	-$101K	﹤0.01%	2568
2019 Q2	$617K	Buy	+15,000	New	+$577K	﹤0.01%	2333
2018 Q3	–	Sell	-30,900	Closed	-$819K	–	3213
2018 Q2	$819K	Buy	+30,900	New	+$785K	﹤0.01%	2294
2017 Q4	–	Sell	-16,600	Closed	-$365K	–	3120
2017 Q3	$365K	Buy	+16,600	New	+$397K	﹤0.01%	2324
2017 Q2	–	Sell	-16,700	Closed	-$394K	–	2992
2017 Q1	$394K	Buy	16,700 +7,200	+76%	+$177K	﹤0.01%	2467
2016 Q4	$232K	Buy	+9,500	New	+$208K	﹤0.01%	2871

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.