Question 1

Does Gilder Gagnon Howe own CIEN stock?

Accepted Answer

No. Gilder Gagnon Howe exited its CIEN (Ciena) position in Q2 2026. Its Q1 2026 13F listed 10,558 shares worth $4.1M.

Question 2

How many shares of CIEN does Gilder Gagnon Howe own?

Accepted Answer

None since Q2 2026, when Gilder Gagnon Howe exited the position. Its Q1 2026 13F listed 10,558 shares worth $4.1M.

Question 3

What is Gilder Gagnon Howe's CIEN position worth?

Accepted Answer

Gilder Gagnon Howe's CIEN position was worth $4.1M in its Q1 2026 13F, before the exit in Q2 2026.

Question 4

Is Gilder Gagnon Howe buying or selling CIEN?

Accepted Answer

In Q2 2026, Gilder Gagnon Howe exited its entire CIEN position.

Question 5

When did Gilder Gagnon Howe first buy CIEN?

Accepted Answer

Gilder Gagnon Howe first reported CIEN in its Q1 2025 13F and listed it in 5 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Exited	0	-100.0%	$0	0.0%	$490.56	0
2026-Q1	Decreased	10,558	-70.7%	$4.1M	0.0%	$388.23	0
2025-Q4	Decreased	36,034	-4.9%	$8.4M	0.1%	$233.87	0
2025-Q3	Increased	37,891	+0.5%	$5.5M	0.1%	$145.67	27
2025-Q2	Increased	37,716	+35.6%	$3.1M	0.0%	$81.33	34
2025-Q1	New	27,811	—	$1.7M	0.0%	$60.43	36