Bridgewater Associates’s Ciena CIEN Stock Holding History

Bridgewater Associates’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	$49.6M	Sell	101,038 -42,808	-30%	-$21.8M	0.2%	80
2026 Q1	$55.8M	Sell	143,846 -68,797	-32%	-$21M	0.25%	71
2025 Q4	$49.7M	Buy	212,643 +50,936	+31%	+$9.88M	0.18%	87
2025 Q3	$23.6M	Buy	161,707 +113,751	+237%	+$11.6M	0.09%	183
2025 Q2	$3.9M	Buy	+47,956	New	+$3.44M	0.02%	359
2021 Q3	–	Sell	-7,283	Closed	-$414K	–	703
2021 Q2	$414K	Buy	+7,283	New	+$401K	﹤0.01%	665
2019 Q1	–	Sell	-14,882	Closed	-$505K	–	347
2018 Q4	$505K	Buy	+14,882	New	+$472K	﹤0.01%	403
2018 Q3	–	Sell	-8,938	Closed	-$237K	–	384
2018 Q2	$237K	Sell	8,938 -6,356	-42%	-$161K	﹤0.01%	434
2018 Q1	$396K	Buy	+15,294	New	+$360K	﹤0.01%	404
2015 Q4	–	Sell	-19,431	Closed	-$403K	–	300
2015 Q3	$403K	Buy	+19,431	New	+$452K	0.01%	364

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

Bridgewater Associates's CIEN Position: Q2 2026 in Review

Bridgewater Associates reduced its Ciena (CIEN) stake by 30% in Q2 2026, selling an estimated $21.8M and leaving 101,038 shares worth $49.6M. The position accounts for 0.2% of the portfolio, ranked #80.

Bridgewater Associates first reported a position in CIEN in Q3 2015 and has held it in 10 quarters since. The position peaked at $55.8M in Q1 2026. 1,226 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

Bridgewater Associates held 101,038 shares of Ciena worth $49.6M as of Q2 2026.
Bridgewater Associates sold 42,808 Ciena shares in Q2 2026, an estimated $21.8M.
Ciena made up 0.2% of Bridgewater Associates's portfolio in Q2 2026, its #80 holding.
Bridgewater Associates first reported a position in Ciena in Q3 2015 and has held it in 10 quarters since.
Bridgewater Associates's Ciena position peaked at $55.8M in Q1 2026.
1,226 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Bridgewater Associates's 13F filing for Q2 2026, filed 14 Aug 2026.