Rossby Financial’s Ciena CIEN Stock Holding History

Rossby Financial’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	$41.1K	Buy	99 +59	+148%	+$18K	0.01%	797
2025 Q4	$9.36K	Buy	+40	New	+$7.76K	﹤0.01%	955

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

Rossby Financial's CIEN Position: Q1 2026 in Review

Rossby Financial increased its Ciena (CIEN) stake by 148% in Q1 2026, buying an estimated $18K and bringing the position to 99 shares worth $41.1K. The position accounts for 0.01% of the portfolio, ranked #797.

Rossby Financial first reported a position in CIEN in Q4 2025 and has held it in 2 quarters since. 1,080 funds tracked by Wall St. Rank hold CIEN as of Q1 2026.

Rossby Financial held 99 shares of Ciena worth $41.1K as of Q1 2026.
Rossby Financial bought 59 Ciena shares in Q1 2026, an estimated $18K.
Ciena made up 0.01% of Rossby Financial's portfolio in Q1 2026, its #797 holding.
Rossby Financial first reported a position in Ciena in Q4 2025 and has held it in 2 quarters since.
1,080 funds tracked by Wall St. Rank held Ciena as of Q1 2026.

Based on Rossby Financial's 13F filing for Q1 2026, filed 11 May 2026.