SEC 13F Intelligence

Managers / Q4 2019 · view latest →

Gagnon Advisors, LLC

CIK 0001599466 · 1370 AVENUE OF THE AMERICAS, 26TH FLOOR, NEW YORK, NY, 10019 · 212-554-5050

Reported Value
$178M
Q4 2019
Positions
32
Filings on Record
32
2019–present window
Filed
Feb 14, 2020
original filing

Summary

Gagnon Advisors, LLC reported $178M in U.S.-listed holdings across 32 positions for Q4 2019.

Its largest position, AL, represents 6.8% of the portfolio.

Compared with Q3 2019, the fund opened 1 new position and exited 1.

Portfolio Metrics

Turnover
+7.3%
vs prior filed quarter
Top-10 Concentration
+53.1%
share of reported value
Largest Position
+6.8%
Air Lease
New / Exited
1 / 1
positions this quarter

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $142MQ4 ’18Q1 ’19: $175MQ2 ’19: $175MQ3 ’19: $161MQ4 ’19: $178MQ4 ’19Q1 ’20: $107MQ2 ’20: $139MQ3 ’20: $163MQ4 ’20: $222MQ4 ’20Q1 ’21: $474MQ2 ’21: $263MQ3 ’21: $252MQ4 ’21: $252MQ4 ’21Q1 ’22: $217MQ2 ’22: $165MQ3 ’22: $154MQ4 ’22: $148MQ4 ’22Q1 ’23: $149MQ2 ’23: $149MQ3 ’23: $120MQ4 ’23: $114MQ4 ’23Q1 ’24: $115MQ2 ’24: $131MQ3 ’24: $155MQ4 ’24: $156MQ4 ’24Q1 ’25: $142MQ2 ’25: $149MQ3 ’25: $162MQ4 ’25: $158MQ4 ’25Q1 ’26: $136Mfilingsflow.com

Portfolio Composition

By security type
Common Stock: 73.3%Other: 17.2%REIT: 5.0%MLP: 2.7%ADR: 1.1%Other: 0.8%
  • Common Stock · 73.3% · $131M
  • Other · 17.2% · $31M
  • REIT · 5.0% · $9M
  • MLP · 2.7% · $5M
  • ADR · 1.1% · $2M
  • Other · 0.8% · $1M

Quarter-over-Quarter Changes full breakdown →

vs Q3 2019 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
ONTOONTO INNOVATION INCNEW+217.2K217.2K+$8M$8M
RTECEURRUDOLPH TECHNOLOGIES INCSOLD OUT−270.1K0−$7M$0
PROFOUND MED CORPTRIMMED−2.09M232.7K+$663,000$3M
LUMBER LIQUIDATORS HLDGS INCTRIMMED−130.2K183.0K−$1M$2M
NEWREURNEW RELIC INCADDED+8.0K95.1K+$894,000$6M
PSIXPOWER SOLUTIONS INTL INCHELD+12.3K513.0K+$398,000$4M
FLEXION THERAPEUTICS INCHELD+0431.3K+$3M$9M
EVBGEUREVERBRIDGE INCHELD+0124.1K+$2M$10M

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q4 2019

31 positions
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
1ALAIR LEASE CORPhistory →CL A6.79%$12M254.9K
2GFNGENERAL FIN CORP DELCOM · SERIES C PREFERRED6.31%$11M904.4K
3AMRCAMERESCO INChistory →CLA6.21%$11M633.0K
4EVBGEUREVERBRIDGE INChistory →COM5.43%$10M124.1K
5NAVIGATOR HOLDINGS LTDSHS5.28%$9M699.9K
6FLEXION THERAPEUTICS INCCOM5.01%$9M431.3K
7EQIXEQUINIX INChistory →COM4.99%$9M15.2K
8PCRXPACIRA BIOSCIENCEShistory →COM4.92%$9M193.9K
9FIVNFIVE9 INChistory →COM4.49%$8M122.2K
10ONTOONTO INNOVATION INChistory →COM4.45%$8M217.2K
11ALPHA & OMEGA SEMICONDUCTORSHS4.04%$7M528.8K
12SUSUNCOR ENERGY INC NEWhistory →COM3.86%$7M209.9K
13INSTEURINSTRUCTURE INChistory →COM3.59%$6M132.9K
14BLBLACKLINE INChistory →COM3.58%$6M123.8K
15CDNACAREDX INChistory →COM3.55%$6M293.8K
16NEWREURNEW RELIC INChistory →COM3.50%$6M95.1K
1707SSECUREWORKS CORPhistory →CL A3.27%$6M350.3K
18EPDENTERPRISE PRODS PARTNERS Lhistory →COM2.70%$5M171.1K
19WPXUSDWPX ENERGY INChistory →COM2.67%$5M346.1K
20YEXTYEXT INChistory →COM2.57%$5M317.5K
21ZUOUSDZUORA INChistory →COM CL A2.41%$4M299.5K
22PSIXPOWER SOLUTIONS INTL INChistory →COM NEW2.27%$4M513.0K
23PROFOUND MED CORPCOM1.43%$3M232.7K
24CSLT1EURCASTLIGHT HEALTH INChistory →CL B1.42%$3M1.91M
25TALEND SAADS1.09%$2M49.8K
26LUMBER LIQUIDATORS HLDGS INCCOM1.00%$2M183.0K
27HQ8FAPOLLO ENDOSURGERY INCCOM0.83%$1M519.8K
28CELCCELCUITY INCCOM0.79%$1M132.6K
29CEMIUSDCHEMBIO DIAGNOSTICS INCCOM NEW0.64%$1M249.1K
30POEEURPAN ORIENT ENERGY CORPCOM0.49%$871,0001.06M
31CNFINANCE HLDGS LTDSPONS ADS0.41%$727,000181.6K

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$136M22Apr 22, 202613F-HRchanges · EDGAR ↗
Q4 2025$158M23Feb 13, 202613F-HRchanges · EDGAR ↗
Q3 2025$162M24Nov 3, 202513F-HRchanges · EDGAR ↗
Q2 2025$149M24Jul 23, 202513F-HRchanges · EDGAR ↗
Q1 2025$142M28May 12, 202513F-HRchanges · EDGAR ↗
Q4 2024$156M26Jan 24, 202513F-HRchanges · EDGAR ↗
Q3 2024$155M27Nov 12, 202413F-HRchanges · EDGAR ↗
Q2 2024$131M27Aug 14, 202413F-HRchanges · EDGAR ↗
Q1 2024$115M27May 13, 202413F-HRchanges · EDGAR ↗
Q4 2023$114M26Feb 14, 202413F-HRchanges · EDGAR ↗
Q3 2023$120M28Nov 14, 202313F-HRchanges · EDGAR ↗
Q2 2023$149M29Aug 8, 202313F-HRchanges · EDGAR ↗
Q1 2023$149M28Apr 10, 202313F-HRchanges · EDGAR ↗
Q4 2022$148M29Feb 7, 202313F-HRchanges · EDGAR ↗
Q3 2022$154M32Nov 14, 202213F-HRchanges · EDGAR ↗
Q2 2022$165M33Aug 1, 202213F-HRchanges · EDGAR ↗
Q1 2022$217M33May 9, 202213F-HRchanges · EDGAR ↗
Q4 2021$252M34Feb 8, 202213F-HRchanges · EDGAR ↗
Q3 2021$252M35Nov 12, 202113F-HRchanges · EDGAR ↗
Q2 2021$263M32Jul 28, 202113F-HRchanges · EDGAR ↗
Q1 2021$474M30May 14, 202113F-HRchanges · EDGAR ↗
Q4 2020$222M29Feb 12, 202113F-HRchanges · EDGAR ↗
Q3 2020$163M30Nov 12, 202013F-HRchanges · EDGAR ↗
Q2 2020$139M26Aug 14, 2020RESTATEMENTchanges · EDGAR ↗
Q1 2020$107M27May 11, 202013F-HRchanges · EDGAR ↗
Q4 2019$178M32Feb 14, 202013F-HRchanges · EDGAR ↗
Q3 2019$161M32Nov 8, 201913F-HRchanges · EDGAR ↗
Q2 2019$175M33Aug 12, 201913F-HRchanges · EDGAR ↗
Q1 2019$175M33May 13, 201913F-HRchanges · EDGAR ↗
Q4 2018$142M31Jan 18, 201913F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.