Brown Brothers Harriman & Co’s Ciena CIEN Stock Holding History

Brown Brothers Harriman & Co’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	$1.21M	Buy	2,462 +768	+45%	+$392K	0.01%	461
2026 Q1	$658K	Buy	+1,694	New	+$518K	﹤0.01%	523
2023 Q2	–	Sell	-71	Closed	-$3.73K	–	1233
2023 Q1	$3.73K	Buy	+71	New	+$3.54K	﹤0.01%	1093
2022 Q4	–	Sell	-753	Closed	-$30K	–	1288
2022 Q3	$30K	Buy	+753	New	+$36.2K	﹤0.01%	863
2020 Q4	–	Sell	-1	Closed	–	–	1093
2020 Q3	$0	Hold	1	–	–	﹤0.01%	969
2020 Q2	$0	Buy	+1	New	+$50	﹤0.01%	1013
2013 Q3	–	Sell	-11,650	Closed	-$226K	–	711
2013 Q2	$226K	Buy	+11,650	New	+$194K	﹤0.01%	370

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

Brown Brothers Harriman & Co's CIEN Position: Q2 2026 in Review

Brown Brothers Harriman & Co increased its Ciena (CIEN) stake by 45% in Q2 2026, buying an estimated $392K and bringing the position to 2,462 shares worth $1.21M. The position accounts for 0.01% of the portfolio, ranked #461.

Brown Brothers Harriman & Co first reported a position in CIEN in Q2 2013 and has held it in 7 quarters since. 1,226 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

Brown Brothers Harriman & Co held 2,462 shares of Ciena worth $1.21M as of Q2 2026.
Brown Brothers Harriman & Co bought 768 Ciena shares in Q2 2026, an estimated $392K.
Ciena made up 0.01% of Brown Brothers Harriman & Co's portfolio in Q2 2026, its #461 holding.
Brown Brothers Harriman & Co first reported a position in Ciena in Q2 2013 and has held it in 7 quarters since.
1,226 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Brown Brothers Harriman & Co's 13F filing for Q2 2026, filed 12 Aug 2026.