Question 1

How many shares of CIEN does Tidal Investments LLC own?

Accepted Answer

As of 2026-Q2, Tidal Investments LLC holds 127,546 shares of CIEN (CIENA CORP).

Question 2

What is Tidal Investments LLC's CIEN position worth?

Accepted Answer

As of 2026-Q2, Tidal Investments LLC's CIEN position is worth $62.6M.

Question 3

Is Tidal Investments LLC buying or selling CIEN?

Accepted Answer

In 2026-Q2, Tidal Investments LLC decreased their CIEN position (-10.3% change in shares).

Question 4

When did Tidal Investments LLC first buy CIEN?

Accepted Answer

Based on available 13F filings, Tidal Investments LLC first reported a position in CIEN in 2024-Q3. They have held the position across 11 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	127,546	-10.3%	$62.6M	0.1%	$490.56	0
2026-Q1	Increased	142,146	+224.3%	$55.2M	0.1%	$388.23	57
2025-Q4	Increased	43,827	+3.0%	$10.2M	0.0%	$233.87	29
2025-Q3	Decreased	42,533	-2.4%	$6.2M	0.0%	$145.67	0
2025-Q2	Increased	43,584	+28.1%	$3.5M	0.0%	$81.33	33
2025-Q1	Increased	34,009	+9.7%	$2.1M	0.0%	$60.43	28
2024-Q4	Increased	31,013	+1.9%	$2.6M	0.0%	$84.81	27
2024-Q3	Decreased	30,420	-31.9%	$1.9M	0.0%	$61.59	0