Gagnon Advisors, LLC

Q4 2025 13F-HR Holdings

Location
New York, NY
Holdings as of
12/31/2025
Date filed
2/13/2026
Form type
13F-HR
Num holdings
23
Total value ($000)
$157,516
Net value change ($000)
-4,438 (-2.7%)
New positions
0
Sold out positions
1
Turnover %
2.5%
Sector allocation + QoQ delta (equities-only)
Prev filing: 11/3/2025 Next filing: 4/21/2026 SEC filing

Snapshot: Change Analysis

Compared to Q3 2025
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
PROF 3,187 72.7%
WGS 2,836 20.7%
FIVN 2,691 66.4%
CDNA 2,342 30.4%
AMPL 1,511 39.9%
PCRX 1,253 22.8%
NVGS 947 11.8%
HZO 866 22.5%
BL 284 4.1%
KLTR 282 13.9%
Top Reduces (Value $000, Stocks/ETFs)
FRSH -6,377 -48.0%
ASPN -3,936 -100.0%
TMCI -2,740 -42.2%
DV -2,486 -33.2%
AMRC -2,029 -12.8%
VERX -1,120 -19.4%
AOSL -980 -29.2%
OSUR -954 -24.6%
BLFS -364 -5.2%
EQIX -183 -2.2%
Instrument mix + QoQ Δ (ex-options)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type