Twin Tree Management’s Ciena CIEN Stock Holding History

Twin Tree Management’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	$815K	Sell	2,100 -12,000	-85%	-$3.67M	0.02%	802
2025 Q4	$3.3M	Sell	14,100 -28,200	-67%	-$5.47M	0.03%	657
2025 Q3	$6.16M	Sell	42,300 -118,900	-74%	-$12.1M	0.03%	680
2025 Q2	$13.1M	Buy	161,200 +77,700	+93%	+$5.57M	0.02%	664
2025 Q1	$5.05M	Buy	83,500 +51,500	+161%	+$4.07M	0.01%	898
2024 Q4	$2.71M	Buy	32,000 +13,500	+73%	+$969K	﹤0.01%	1086
2024 Q3	$1.14M	Sell	18,500 -35,300	-66%	-$1.86M	﹤0.01%	1216
2024 Q2	$2.59M	Sell	53,800 -54,600	-50%	-$2.59M	0.01%	910
2024 Q1	$5.36M	Buy	108,400 +94,400	+674%	+$4.98M	0.01%	795
2023 Q4	$630K	Hold	14,000	–	–	﹤0.01%	1181
2023 Q3	$662K	Buy	14,000 +6,600	+89%	+$291K	﹤0.01%	1009
2023 Q2	$314K	Buy	+7,400	New	+$337K	﹤0.01%	1088
2020 Q3	–	Sell	-33,000	Closed	-$1.79M	–	1255
2020 Q2	$1.79M	Hold	33,000	–	–	0.01%	911
2020 Q1	$1.31M	Buy	+33,000	New	+$1.35M	0.01%	806
2019 Q3	–	Sell	-107,000	Closed	-$4.4M	–	1253
2019 Q2	$4.4M	Buy	+107,000	New	+$4.12M	0.02%	487

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

Twin Tree Management's CIEN Position: Q1 2026 in Review

Twin Tree Management reduced its Ciena (CIEN) stake by 93% in Q1 2026, selling an estimated $17.3M and leaving 4,573 shares worth $1.78M. The position accounts for 0.04% of the portfolio, ranked #523.

Twin Tree Management first reported a position in CIEN in Q1 2019 and has held it in 23 quarters since. The position peaked at $19.2M in Q3 2025. 1,080 funds tracked by Wall St. Rank hold CIEN as of Q1 2026.

Twin Tree Management held 4,573 shares of Ciena worth $1.78M as of Q1 2026.
Twin Tree Management sold 56,612 Ciena shares in Q1 2026, an estimated $17.3M.
Ciena made up 0.04% of Twin Tree Management's portfolio in Q1 2026, its #523 holding.
Twin Tree Management first reported a position in Ciena in Q1 2019 and has held it in 23 quarters since.
Twin Tree Management's Ciena position peaked at $19.2M in Q3 2025.
1,080 funds tracked by Wall St. Rank held Ciena as of Q1 2026.

Based on Twin Tree Management's 13F filing for Q1 2026, filed 14 May 2026.