Summit Partners Public Asset Management’s Ciena CIEN Stock Holding History

Summit Partners Public Asset 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 Q2	–	Sell	-35,000	Closed	-$13.6M	–	172
2026 Q1	$13.6M	Buy	+35,000	New	+$10.7M	0.37%	77
2025 Q3	–	Sell	-53,500	Closed	-$4.35M	–	183
2025 Q2	$4.35M	Buy	+53,500	New	+$3.84M	0.11%	114

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 $3.38T AUM 44.17% 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

Summit Partners Public Asset Management's CIEN Position: Q2 2026 in Review

Summit Partners Public Asset Management opened a new position in Ciena (CIEN) in Q2 2026: 13,348 shares worth $6.55M. The stake represents 0.12% of the portfolio and ranks #123 among its holdings.

1,226 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

Summit Partners Public Asset Management held 13,348 shares of Ciena worth $6.55M as of Q2 2026.
Ciena was a new Summit Partners Public Asset Management position in Q2 2026.
Ciena made up 0.12% of Summit Partners Public Asset Management's portfolio in Q2 2026, its #123 holding.
1,226 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Summit Partners Public Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.