SEC 13F Intelligence

Managers / Q3 2019 · view latest →

Gagnon Advisors, LLC

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

Reported Value
$161M
Q3 2019
Positions
32
Filings on Record
32
2019–present window
Filed
Nov 8, 2019
original filing

Summary

Gagnon Advisors, LLC reported $161M in U.S.-listed holdings across 32 positions for Q3 2019.

Its largest position, AL, represents 6.6% of the portfolio.

Compared with Q2 2019, the fund opened 0 new positions and exited 1.

Portfolio Metrics

Turnover
+6.1%
vs prior filed quarter
Top-10 Concentration
+49.9%
share of reported value
Largest Position
+6.6%
Air Lease

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: 73.5%Other: 16.1%REIT: 5.5%MLP: 3.0%ADR: 1.0%Other: 0.9%
  • Common Stock · 73.5% · $119M
  • Other · 16.1% · $26M
  • REIT · 5.5% · $9M
  • MLP · 3.0% · $5M
  • ADR · 1.0% · $2M
  • Other · 0.9% · $1M

Quarter-over-Quarter Changes full breakdown →

vs Q2 2019 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
I8RIROBOT CORPSOLD OUT−52.2K0−$5M$0
PCRXPACIRA BIOSCIENCESADDED+86.4K193.9K+$3M$7M
PROFOUND MED CORPADDED+500.0K2.33M+$781,000$2M
ZUOUSDZUORA INCTRIMMED−62.0K299.5K−$1M$5M
NEWREURNEW RELIC INCADDED+6.7K87.1K−$2M$5M
FLEXION THERAPEUTICS INCADDED+29.7K431.3K+$971,000$6M
PSIXPOWER SOLUTIONS INTL INCADDED+27.9K500.7K−$955,000$4M
FIVNFIVE9 INCADDED+6.1K122.2K+$612,000$7M

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

Holdings — Q3 2019

31 positions
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
1ALAIR LEASE CORPhistory →CL A6.61%$11M254.9K
2AMRCAMERESCO INChistory →CL A6.31%$10M633.0K
3GFNGENERAL FIN CORP DELCOM · SERIES C PREFERRED5.75%$9M904.4K
4EQIXEQUINIX INChistory →COM5.45%$9M15.2K
5EVBGEUREVERBRIDGE INChistory →COM4.75%$8M124.1K
6NAVIGATOR HOLDINGS LTDSHS4.63%$7M699.9K
7PCRXPACIRA BIOSCIENCEShistory →COM4.58%$7M193.9K
8RTECEURRUDOLPH TECHNOLOGIES INChistory →COM4.41%$7M270.1K
9CDNACAREDX INChistory →COM4.12%$7M293.8K
10SUSUNCOR ENERGY INC NEWhistory →COM4.11%$7M209.9K
11FIVNFIVE9 INChistory →COM4.07%$7M122.2K
12ALPHA & OMEGA SEMICONDUCTORSHS4.03%$6M528.8K
13BLBLACKLINE INChistory →COM3.67%$6M123.8K
14FLEXION THERAPEUTICS INCCOM3.67%$6M431.3K
15NEWREURNEW RELIC INChistory →COM3.32%$5M87.1K
16INSTEURINSTRUCTURE INChistory →COM3.19%$5M132.9K
17YEXTYEXT INChistory →COM3.13%$5M317.5K
18EPDENTERPRISE PRODS PARTNERS Lhistory →COM3.03%$5M171.1K
1907SSECUREWORKS CORPhistory →CL A2.81%$5M350.3K
20ZUOUSDZUORA INChistory →COM CL A2.80%$5M299.5K
21WPXUSDWPX ENERGY INChistory →COM2.27%$4M346.1K
22PSIXPOWER SOLUTIONS INTL INChistory →COM NEW2.27%$4M500.7K
23LUMBER LIQUIDATORS HLDGS INCCOM1.92%$3M313.2K
24CSLT1EURCASTLIGHT HEALTH INChistory →CL B1.67%$3M1.91M
25CELCCELCUITY INChistory →COM1.40%$2M132.6K
26PROFOUND MED CORPCOM1.17%$2M2.33M
27POEEURPAN ORIENT ENERGY CORPhistory →COM1.14%$2M1.06M
28HQ8FAPOLLO ENDOSURGERY INChistory →COM1.06%$2M519.8K
29TALEND SAADS1.05%$2M49.8K
30CEMIUSDCHEMBIO DIAGNOSTICS INCCOM NEW0.94%$2M249.1K
31CNFINANCE HLDGS LTDSPONS ADS0.68%$1M181.6K

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 ↗.