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 Q2	$42.2K	Sell	86 -13	-13%	-$6.63K	0.01%	740
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 $2.3T AUM 54.33% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Rossby Financial's CIEN Position: Q2 2026 in Review

Rossby Financial reduced its Ciena (CIEN) stake by 13% in Q2 2026, selling an estimated $6.63K and leaving 86 shares worth $42.2K. The position accounts for 0.01% of the portfolio, ranked #740.

Rossby Financial first reported a position in CIEN in Q4 2025 and has held it in 3 quarters since. 1,226 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

Rossby Financial held 86 shares of Ciena worth $42.2K as of Q2 2026.
Rossby Financial sold 13 Ciena shares in Q2 2026, an estimated $6.63K.
Ciena made up 0.01% of Rossby Financial's portfolio in Q2 2026, its #740 holding.
Rossby Financial first reported a position in Ciena in Q4 2025 and has held it in 3 quarters since.
1,226 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Rossby Financial's 13F filing for Q2 2026, filed 4 Aug 2026.