Tectonic Advisors’s Ciena CIEN Stock Holding History

Tectonic Advisors’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	$6.45M	Sell	13,139 -5,438	-29%	-$2.77M	0.31%	75
2026 Q1	$7.21M	Sell	18,577 -30,172	-62%	-$9.23M	0.38%	69
2025 Q4	$11.4M	Sell	48,749 -3,765	-7%	-$730K	0.6%	48
2025 Q3	$7.65M	Sell	52,514 -50,805	-49%	-$5.17M	0.42%	68
2025 Q2	$8.4M	Buy	103,319 +11,772	+13%	+$844K	0.49%	57
2025 Q1	$5.53M	Buy	91,547 +17,709	+24%	+$1.4M	0.35%	72
2024 Q4	$6.26M	Buy	73,838 +15,996	+28%	+$1.15M	0.41%	66
2024 Q3	$3.56M	Buy	+57,842	New	+$3.05M	0.23%	79

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

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

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

Tectonic Advisors's CIEN Position: Q2 2026 in Review

Tectonic Advisors reduced its Ciena (CIEN) stake by 29% in Q2 2026, selling an estimated $2.77M and leaving 13,139 shares worth $6.45M. The position accounts for 0.31% of the portfolio, ranked #75.

Tectonic Advisors first reported a position in CIEN in Q3 2024 and has held it in 8 quarters since. The position peaked at $11.4M in Q4 2025. 233 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

Tectonic Advisors held 13,139 shares of Ciena worth $6.45M as of Q2 2026.
Tectonic Advisors sold 5,438 Ciena shares in Q2 2026, an estimated $2.77M.
Ciena made up 0.31% of Tectonic Advisors's portfolio in Q2 2026, its #75 holding.
Tectonic Advisors first reported a position in Ciena in Q3 2024 and has held it in 8 quarters since.
Tectonic Advisors's Ciena position peaked at $11.4M in Q4 2025.
233 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Tectonic Advisors's 13F filing for Q2 2026, filed 15 Jul 2026.