New England Research & Management’s Ciena CIEN Stock Holding History

New England Research & 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	$454K	Buy	+925	New	+$472K	0.18%	105
2023 Q2	–	Sell	-5,025	Closed	-$264K	–	141
2023 Q1	$264K	Buy	+5,025	New	+$251K	0.15%	127
2021 Q4	–	Sell	-6,060	Closed	-$311K	–	179
2021 Q3	$311K	Buy	+6,060	New	+$337K	0.16%	143
2021 Q1	–	Sell	-13,410	Closed	-$709K	–	171
2020 Q4	$709K	Sell	13,410 -500	-4%	-$22.2K	0.44%	79
2020 Q3	$552K	Buy	+13,910	New	+$732K	0.4%	86
2020 Q2	–	Sell	-29,680	Closed	-$1.18M	–	147
2020 Q1	$1.18M	Sell	29,680 -200	-0.7%	-$8.21K	1.01%	28
2019 Q4	$1.28M	Buy	29,880 +10,350	+53%	+$394K	0.85%	38
2019 Q3	$766K	Buy	19,530 +12,155	+165%	+$510K	0.55%	66
2019 Q2	$303K	Sell	7,375 -4,025	-35%	-$155K	0.21%	137
2019 Q1	$426K	Buy	11,400 +1,050	+10%	+$40.8K	0.29%	111
2018 Q4	$351K	Buy	+10,350	New	+$328K	0.28%	108

Other funds holding CIEN

Wealth Enhancement Advisory Services Plymouth, Minnesota $59.8B AUM 29.42% 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

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

VNIM

Vaughan Nelson Investment Management Houston, Texas $11.3B AUM 53% 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

CNB

Czech National Bank Prague, Czech Republic $18.3B AUM 43.04% 1-Year Est. Return

HCA

Harbour Capital Advisors Tysons Corner, Virginia $549M AUM 54.99% 1-Year Est. Return

UNICOM Systems Las Vegas, Nevada $1.53B AUM 148.94% 1-Year Est. Return

New England Research & Management's CIEN Position: Q2 2026 in Review

New England Research & Management opened a new position in Ciena (CIEN) in Q2 2026: 925 shares worth $454K. The stake represents 0.18% of the portfolio and ranks #105 among its holdings. This is a return to the name: New England Research & Management previously reported a position in CIEN as recently as Q1 2023.

New England Research & Management first reported a position in CIEN in Q4 2018 and has held it in 11 quarters since. The position peaked at $1.28M in Q4 2019. 151 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

New England Research & Management held 925 shares of Ciena worth $454K as of Q2 2026.
Ciena was a new New England Research & Management position in Q2 2026.
Ciena made up 0.18% of New England Research & Management's portfolio in Q2 2026, its #105 holding.
New England Research & Management first reported a position in Ciena in Q4 2018 and has held it in 11 quarters since.
New England Research & Management's Ciena position peaked at $1.28M in Q4 2019.
151 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on New England Research & Management's 13F filing for Q2 2026, filed 9 Jul 2026.