SEC 13F Intelligence

Gagnon Advisors, LLC / FIVN

Gagnon Advisors, LLC’s Five9 Inc Position

Does Gagnon Advisors, LLC own Five9 Inc (FIVN)? Yes — 336.3K shares worth $5M (+3.75% of its 13F portfolio) as of Q1 2026.

Position Value
$5M
Q1 2026
Shares
336.3K
% of Portfolio
+3.75%
Quarters Held
30
currently held

Position History FIVN

Reported value by quarter
Q4 ’18: $4MQ4 ’18Q1 ’19: $4MQ2 ’19: $6MQ3 ’19: $7MQ4 ’19: $8MQ4 ’19Q1 ’20: $6MQ2 ’20: $8MQ3 ’20: $10MQ4 ’20: $13MQ4 ’20Q1 ’21: $12MQ2 ’21: $14MQ3 ’21: $13MQ4 ’21: $11MQ4 ’21Q1 ’22: $10MQ2 ’22: $8MQ3 ’22: $6MQ4 ’22: $6MQ4 ’22Q1 ’23: $7MQ2 ’23: $8MQ3 ’23: $6MQ4 ’23: $7MQ4 ’23Q1 ’24: $6MQ2 ’24: $6MQ3 ’24: $5MQ4 ’24: $7MQ4 ’24Q1 ’25: $5MQ2 ’25: $4MQ3 ’25: $4MQ4 ’25: $7MQ4 ’25Q1 ’26: $5Mfilingsflow.com
QuarterSharesValue% of Portfolio
Q1 2026336.3K$5M+3.75%
Q4 2025336.3K$7M+4.28%
Q3 2025167.4K$4M+2.50%
Q2 2025167.4K$4M+2.98%
Q1 2025167.4K$5M+3.21%
Q4 2024167.4K$7M+4.36%
Q3 2024167.4K$5M+3.11%
Q2 2024125.5K$6M+4.22%
Q1 2024104.3K$6M+5.62%
Q4 202394.9K$7M+6.52%
Q3 202394.9K$6M+5.10%
Q2 202394.9K$8M+5.23%
Q1 202394.9K$7M+4.60%
Q4 202294.9K$6M+4.34%
Q3 202279.0K$6M+3.84%
Q2 202289.4K$8M+4.93%
Q1 202289.4K$10M+4.55%
Q4 202181.3K$11M+4.43%
Q3 202181.3K$13M+5.15%
Q2 202173.9K$14M+5.15%
Q1 202173.9K$12M+2.44%
Q4 202073.9K$13M+5.79%
Q3 202073.9K$10M+5.88%
Q2 202073.9K$8M+5.88%
Q1 202073.9K$6M+5.27%
Q4 2019122.2K$8M+4.49%
Q3 2019122.2K$7M+4.07%
Q2 2019116.2K$6M+3.40%
Q1 201984.9K$4M+2.57%
Q4 201884.9K$4M+2.61%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Gagnon Advisors, LLC’s full portfolio or all institutional holders of FIVN.