Vaughan Nelson Investment Management’s Ciena CIEN Stock Holding History

Vaughan Nelson Investment 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	$38.7M	Buy	78,867 +23,190	+42%	+$11.8M	0.34%	113
2026 Q1	$21.6M	Sell	55,677 -7,785	-12%	-$2.38M	0.22%	138
2025 Q4	$14.8M	Sell	63,462 -650,234	-91%	-$126M	0.15%	137
2025 Q3	$104M	Sell	713,696 -522,000	-42%	-$53.2M	0.95%	32
2025 Q2	$100M	Buy	1,235,696 +975,792	+375%	+$70M	0.94%	33
2025 Q1	$15.7M	Sell	259,904 -539,642	-67%	-$42.7M	0.16%	127
2024 Q4	$67.8M	Buy	799,546 +143,350	+22%	+$10.3M	0.63%	47
2024 Q3	$40.4M	Buy	+656,196	New	+$34.6M	0.36%	93

Other funds holding CIEN

Wealth Enhancement Advisory Services Plymouth, Minnesota $59.8B AUM 29.42% 1-Year Est. Return

Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return

Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return

AHT

Amanah Holdings Trust London $1.7B AUM 612.53% 1-Year Est. Return

NGM

North Growth Management Vancouver, British Columbia, Canada $780M AUM 102.77% 1-Year Est. Return

New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return

Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

Handelsbanken Fonder Stockholm, Sweden $35.1B AUM 47.76% 1-Year Est. Return

MLCM

M & L Capital Management London, United Kingdom $370M AUM 165.61% 1-Year Est. Return

Mirae Asset Global Investments Seoul, South Korea $67.7B AUM 51.91% 1-Year Est. Return

Vaughan Nelson Investment Management's CIEN Position: Q2 2026 in Review

Vaughan Nelson Investment Management increased its Ciena (CIEN) stake by 42% in Q2 2026, buying an estimated $11.8M and bringing the position to 78,867 shares worth $38.7M. The position accounts for 0.34% of the portfolio, ranked #113.

Vaughan Nelson Investment Management first reported a position in CIEN in Q3 2024 and has held it in 8 quarters since. The position peaked at $104M in Q3 2025. 293 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

Vaughan Nelson Investment Management held 78,867 shares of Ciena worth $38.7M as of Q2 2026.
Vaughan Nelson Investment Management bought 23,190 Ciena shares in Q2 2026, an estimated $11.8M.
Ciena made up 0.34% of Vaughan Nelson Investment Management's portfolio in Q2 2026, its #113 holding.
Vaughan Nelson Investment Management first reported a position in Ciena in Q3 2024 and has held it in 8 quarters since.
Vaughan Nelson Investment Management's Ciena position peaked at $104M in Q3 2025.
293 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Vaughan Nelson Investment Management's 13F filing for Q2 2026, filed 16 Jul 2026.