Horizon Investments’s Ciena CIEN Stock Holding History

Horizon 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	$4.81M	Sell	12,384 -45,246	-79%	-$13.8M	0.05%	296
2025 Q4	$13.5M	Buy	57,630 +57,606	+240,025%	+$11.2M	0.17%	100
2025 Q3	$3.5K	Buy	+24	New	+$2.44K	﹤0.01%	1073
2024 Q2	–	Sell	-14	Closed	-$692	–	831
2024 Q1	$692	Buy	+14	New	+$739	﹤0.01%	772

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

Horizon Investments's CIEN Position: Q1 2026 in Review

Horizon Investments reduced its Ciena (CIEN) stake by 79% in Q1 2026, selling an estimated $13.8M and leaving 12,384 shares worth $4.81M. The position accounts for 0.05% of the portfolio, ranked #296.

Horizon Investments first reported a position in CIEN in Q1 2024 and has held it in 4 quarters since. The position peaked at $13.5M in Q4 2025. 1,080 funds tracked by Wall St. Rank hold CIEN as of Q1 2026.

Horizon Investments held 12,384 shares of Ciena worth $4.81M as of Q1 2026.
Horizon Investments sold 45,246 Ciena shares in Q1 2026, an estimated $13.8M.
Ciena made up 0.05% of Horizon Investments's portfolio in Q1 2026, its #296 holding.
Horizon Investments first reported a position in Ciena in Q1 2024 and has held it in 4 quarters since.
Horizon Investments's Ciena position peaked at $13.5M in Q4 2025.
1,080 funds tracked by Wall St. Rank held Ciena as of Q1 2026.

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