SEC 13F Intelligence

Managers / Q1 2021 · view latest →

Gagnon Advisors, LLC

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

Reported Value
$474M
Q1 2021
Positions
30
Filings on Record
32
2019–present window
Filed
May 14, 2021
original filing

Summary

Gagnon Advisors, LLC reported $474M in U.S.-listed holdings across 30 positions for Q1 2021.

The portfolio is heavily concentrated: EPD alone accounts for 50.0% of reported value.

Compared with Q4 2020, the fund opened 4 new positions and exited 3.

Portfolio Metrics

Turnover
+5.7%
vs prior filed quarter
Top-10 Concentration
+77.1%
share of reported value
Largest Position
+50.0%
Enterprise Prods Partnersl P
New / Exited
4 / 3
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, with multiple share classes and repeated sub-manager rows for the same issuer combined into one position — the same rule the holdings table uses by default. 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
MLP: 50.0%Common Stock: 44.3%Other: 4.3%REIT: 1.3%
  • MLP · 50.0% · $237M
  • Common Stock · 44.3% · $210M
  • Other · 4.3% · $21M
  • REIT · 1.3% · $6M

Quarter-over-Quarter Changes full breakdown →

vs Q4 2020 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
E2OPEN PARENT HOLDINGS INCNEW+594.5K594.5K+$6M$6M
CM LIFE SCIENCES II INCNEW+366.9K366.9K+$5M$5M
DVNDEVON ENERGY CORPNEW+178.8K178.8K+$4M$4M
QUMU CORPNEW+197.4K197.4K+$1M$1M
CNFINANCE HOLDINGS LIMITEDADDED+485.9K667.6K+$2M$3M
WPX ENERGY INCSOLD OUT−346.1K0−$3M$0
CC NEUBERGER PRINCIPAL HOLDINGS ISOLD OUT−94.0K0−$1M$0
CC NEUBERGER PRINCIPAL HOLDINGS ISOLD OUT−4.6K0−$54,000$0

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

Holdings — Q1 2021

30 positions
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
1EPDENTERPRISE PRODS PARTNERSL Phistory →COM50.00%$237M276.0K
2CDNACAREDX INChistory →COM4.96%$23M344.9K
3AMRCAMERESCO INChistory →CLA4.07%$19M396.0K
4AOSLALPHA AND OMEGA SEMICONDUCTORLTDhistory →SHS2.97%$14M430.8K
5PCRXPACIRA BIOSCIENCEShistory →COM2.87%$14M193.9K
6BLBLACKLINE INChistory →COM2.83%$13M123.8K
7ALAIR LEASE CORPhistory →CL A2.64%$12M254.9K
8FIVNFIVE9 INChistory →COM2.44%$12M73.9K
9GFNGENERAL FINANCE CORPhistory →CL A2.29%$11M891.0K
10ONTOONTO INNOVATION INChistory →COM2.08%$10M149.6K
11EVERBRIDGE INCCOM1.96%$9M76.7K
12NVGSNAVIGATOR HOLDINGS LTDhistory →SHS1.83%$9M973.8K
13NEW RELIC INCCOM1.62%$8M124.6K
14LUMBER LIQUIDATORS HOLDINGS INCCOM1.53%$7M287.6K
15BLFSBIOLIFE SOLUTIONS INChistory →COM NEW1.48%$7M194.8K
16APOLLO ENDOSURGERY INCCOM1.40%$7M1.20M
17EQIXEQUINIX INChistory →COM1.32%$6M9.2K
18CM LIFE SCIENCES INCUNIT 9/1/20251.29%$6M370.4K
19YEXTYEXT INChistory →CL A1.27%$6M416.1K
20E2OPEN PARENT HOLDINGS INCCOM CL A1.25%$6M594.5K
21PROFPROFOUND MED CORPhistory →COM NEW1.18%$6M277.3K
22CM LIFE SCIENCES II INCUNIT 02/25/280.99%$5M366.9K
23SECUREWORKS CORPCL A0.99%$5M350.3K
24PSIXPOWER SOLUTIONS INTERNATIONAL INCCOM0.97%$5M626.6K
25CASTLIGHT HEALTH INCCL B0.94%$4M2.96M
26DVNDEVON ENERGY CORPCOM0.82%$4M178.8K
27CELCCELCUITY INCCOM0.69%$3M228.0K
28CNFINANCE HOLDINGS LIMITEDSPON ADS0.54%$3M667.6K
29TFF PHARMACEUTICALS INCCOM0.51%$2M176.5K
30QUMU CORPCOM0.28%$1M197.4K

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 ↗.