National Bank of Canada’s Ciena CIEN Stock Holding History

National Bank of Canada’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
2025 Q3	–	Sell	-946	Closed	-$7.69M	–	2899
2025 Q2	$7.69M	Buy	+946	New	+$67.9K	0.01%	853

Other funds holding CIEN

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

State Street Boston, Massachusetts $3.37T AUM 44.26% 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

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return

National Bank of Canada's CIEN Position: Q2 2026 in Review

National Bank of Canada increased its Ciena (CIEN) stake by 5.3% in Q2 2026, buying an estimated $2.29M and bringing the position to 88,971 shares worth $43.6M. The position accounts for 0.03% of the portfolio, ranked #373.

National Bank of Canada first reported a position in CIEN in Q4 2021 and has held it in 19 quarters since. 893 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

National Bank of Canada held 88,971 shares of Ciena worth $43.6M as of Q2 2026.
National Bank of Canada bought 4,483 Ciena shares in Q2 2026, an estimated $2.29M.
Ciena made up 0.03% of National Bank of Canada's portfolio in Q2 2026, its #373 holding.
National Bank of Canada first reported a position in Ciena in Q4 2021 and has held it in 19 quarters since.
893 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on National Bank of Canada's 13F filing for Q2 2026, filed 10 Aug 2026.