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Filers›Family Office›Gagnon Advisors, LLC
DOSSIER · 13F-HR · Q1 2026

Gagnon Advisors, LLC

Gagnon's family office based in Greenwich, CT — $136M in tracked AUM across 22 positions as of Q1 2026.

G
Gagnon·Greenwich, CT·Family Office
CIK 0001599466 · last filed Mar 31, 2026
Total AUM
$136M
▲ 18.5%
vs prior
Holdings
22
—
positions
Whale Score
62
62
tracked
Activity
—
no data
changes this Q
Top sector
Tech
13% weight
concentration
AI Analysis · Q1 2026 · Q1 2026
Comprehensive Analysis of Gagnon Advisors, LLC SEC 13F Filing
Portfolio Overview

For the reporting period ending September 30, 2025, Gagnon Advisors, LLC managed a total portfolio value of approximately $106.72 million across 17 holdings. This represents a significant decrease in assets under management (AUM) of -28.3% compared to the previous quarter's value of $148.81 million. The reduction in portfolio value is likely attributable to a combination of market depreciation and ...

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
EPD
ENTERPRISE PRODS PARTNERS L P
$13M340K9.5%
02
AMRC
AMERESCO INC
$12M473K8.9%
03
EQIX
EQUINIX INC
$11M11K7.7%
04
Y62132108
NAVIGATOR HLDGS LTD
$10M540K7.7%
05
SGOV
ISHARES TR
$10M96K7.1%
06
WGS
GENEDX HOLDINGS CORP
$10M148K7.0%
07
CDNA
CAREDX INC
$9M533K6.8%
08
PCRX
PACIRA BIOSCIENCES INC
$8M353K5.9%
09
PROF
PROFOUND MED CORP
$6M962K4.6%
10
FRSH
FRESHWORKS INC
$6M776K4.6%

Filing history

Filing history loading…
AI Agent · grounded in Gagnon
haiku-4-5 · 22 positions indexed
Sector mix
  • Tech13%
  • Financials9%
  • Health Care18%
  • Cons. Disc.13%
  • Communications48%
  • Industrials4%
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