1832 Asset Management’s Ciena CIEN Stock Holding History

1832 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	$49.4M	Sell	100,800 -186,600	-65%	-$95.2M	0.02%	245
2026 Q1	$112M	Sell	287,400 -502,500	-64%	-$154M	0.1%	146
2025 Q4	$185M	Buy	+789,900	New	+$153M	0.14%	107
2020 Q4	–	Sell	-578,586	Closed	-$23.1M	–	698
2020 Q3	$23.1M	Buy	+578,586	New	+$30.4M	0.06%	206
2017 Q3	–	Sell	-120,800	Closed	-$3.03M	–	656
2017 Q2	$3.03M	Buy	+120,800	New	+$2.89M	0.01%	352
2014 Q4	–	Sell	-28	Closed	–	–	623
2014 Q3	$0	Buy	+28	New	+$549	﹤0.01%	613

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

1832 Asset Management's CIEN Position: Q2 2026 in Review

1832 Asset Management reduced its Ciena (CIEN) stake by 65% in Q2 2026, selling an estimated $95.2M and leaving 100,800 shares worth $49.4M. The position accounts for 0.02% of the portfolio, ranked #245.

1832 Asset Management first reported a position in CIEN in Q3 2014 and has held it in 6 quarters since. The position peaked at $185M in Q4 2025. 1,226 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

1832 Asset Management held 100,800 shares of Ciena worth $49.4M as of Q2 2026.
1832 Asset Management sold 186,600 Ciena shares in Q2 2026, an estimated $95.2M.
Ciena made up 0.02% of 1832 Asset Management's portfolio in Q2 2026, its #245 holding.
1832 Asset Management first reported a position in Ciena in Q3 2014 and has held it in 6 quarters since.
1832 Asset Management's Ciena position peaked at $185M in Q4 2025.
1,226 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on 1832 Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.