Question 1

How many shares of CIEN does GILDER GAGNON HOWE & CO LLC own?

Accepted Answer

As of 2026-Q1, GILDER GAGNON HOWE & CO LLC holds 10,558 shares of CIEN (CIENA CORP).

Question 2

What is GILDER GAGNON HOWE & CO LLC's CIEN position worth?

Accepted Answer

As of 2026-Q1, GILDER GAGNON HOWE & CO LLC's CIEN position is worth $4.1M.

Question 3

Is GILDER GAGNON HOWE & CO LLC buying or selling CIEN?

Accepted Answer

In 2026-Q1, GILDER GAGNON HOWE & CO LLC decreased their CIEN position (-70.7% change in shares).

Question 4

When did GILDER GAGNON HOWE & CO LLC first buy CIEN?

Accepted Answer

Based on available 13F filings, GILDER GAGNON HOWE & CO LLC first reported a position in CIEN in 2026-Q1. They have held the position across 5 quarters.