Gagnon Advisors, LLC

All Holdings — 2025 Q4

AI Portfolio Summary
In 2025 Q4, Gagnon Advisors, LLC maintained a portfolio of 24 distinct positions. They heavily accumulated shares in CAREDX INC, increasing their position by 0.7%. Conversely, Gagnon Advisors, LLC completely exited their position in ASPEN AEROGELS INC.
PCA Score Concentration Risk
Risk ENB
Total Positions
24
Quarter
2025 Q4
Top Holding
WGS (10.5%)
Top 10 Concentration
65.2%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
1-24 of 24
Stock History Sector / Type Port % Prev % Rank / Prev Conviction Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
WGS
GENEDX HOLDINGS...
Healthcare 10.49% 8.45% #1 1
Prev: #2
7.0 no change no change
P
S
127,062 $16,525,684 2023 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
AMRC
AMERESCO INC
Industrials 8.79% 9.80% #2 1
Prev: #1
6.0 no change no change
P
S
472,798 $13,848,253 2013 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
AL
AIR LEASE CORP
Industrials 8.01% 7.72% #3 1
Prev: #4
5.2 no change no change
P
S
196,479 $12,619,846 2013 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
EPD
ENTERPRISE PROD...
Energy 6.92% 6.56% #4 1
Prev: #5
4.3 no change no change
P
S
339,877 $10,896,457 2019 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
CDNA
CAREDX INC
Healthcare 6.37% 4.75% #5 3
Prev: #8
3.5 3,478 0.7%
P
S
532,892 $10,039,685 2014 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
NVGS
NAVIGATOR HLDGS...
Energy 5.69% 4.95% #6 1
Prev: #7
3.3 no change no change
P
S
517,066 $8,955,583 2015 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
EQIX
EQUINIX INC
Real Estate 5.21% 5.18% #7 1
Prev: #6
3.1 no change no change
P
S
10,715 $8,209,404 2013 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
PROF
PROFOUND MED CO...
Healthcare 4.81% 2.71% #8 7
Prev: #15
3.9 65,515 7.3%
P
S
962,186 $7,572,404 2020 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
BL
BLACKLINE INC
Technology 4.56% 4.26% #9 2
Prev: #11
2.8 no change no change
P
S
130,050 $7,190,465 2018 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
FRSH
FRESHWORKS INC
Technology 4.39% 8.21% #10 7
Prev: #3
1.8 -564,879 -50.0%
P
S
564,879 $6,919,768 2021 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
PCRX
PACIRA BIOSCIEN...
Healthcare 4.29% 3.40% #11 3
Prev: #14
4.2 47,506 22.3%
P
S
260,908 $6,752,299 2019 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
FIVN
FIVE9 INC
Technology 4.28% 2.50% #12 4
Prev: #16
4.7 168,891 100.9%
P
S
336,277 $6,742,354 2016 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
BLFS
BIOLIFE SOLUTIO...
Healthcare 4.21% 4.32% #13 3
Prev: #10
2.7 no change no change
P
S
274,217 $6,630,567 2020 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
AMPL
AMPLITUDE INC
Technology 3.36% 2.34% #14 6
Prev: #20
3.8 104,221 29.5%
P
S
457,212 $5,294,515 2025 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
DV
DOUBLEVERIFY HL...
Communication Services 3.18% 4.63% #15 6
Prev: #9
1.3 -187,731 -30.0%
P
S
438,039 $5,011,166 2023 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
HZO
MarineMax Inc
Consumer Cyclical 2.99% 2.37% #16 3
Prev: #19
3.7 42,639 28.1%
P
S
194,484 $4,712,347 2025 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
VERX
VERTEX INC
Technology 2.95% 3.56% #17 4
Prev: #13
2.2 no change no change
P
S
232,479 $4,642,606 2023 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
TMCI
TREACE MED CONC...
Healthcare 2.39% 4.01% #18 6
Prev: #12
4.0 565,570 58.4%
P
S
1,534,034 $3,758,383 2024 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
NVDA
NVIDIA CORPORAT...
Technology 1.96% 1.91% #19 3
Prev: #22
1.8 no change no change
P
S
16,555 $3,087,508 2024 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
OSUR
OraSure Technol...
Healthcare 1.86% 2.39% #20 2
Prev: #18
1.7 no change no change
P
S
1,207,440 $2,922,005 2025 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
AOSL
ALPHA & OMEGA S...
Technology 1.51% 2.08% #21
Prev: #21
1.6 no change no change
P
S
120,196 $2,381,083 2013 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
KLTR
KALTURA INC
Technology 1.47% 1.26% #22 1
Prev: #23
1.6 no change no change
P
S
1,413,010 $2,317,336 2023 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
CNF
CNFINANCE HLDGS...
Financial Services 0.31% 0.21% #23 1
Prev: #24
1.1 no change no change
P
S
80,359 $486,172 2018 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
ASPN
ASPEN AEROGELS ...
Industrials 0.00% 2.43%
Sold All 😨
(Was: #17)
0.0 -565,570 -100.0%
CLOSED
$— 2025 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
Showing 1-24 of 24 holdings

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