Gagnon Advisors, LLC Long-Term Concentrated

Location: New York, NY

CIK: 0001599466 · Show all filings

Period: Q3 2025 (← Previous) (Next →)

Filing Date: Nov 3, 2025

Total Value: $162M (100.0% shares, 0.0% debt)

Holdings (24)

AMRC AMERESCO INC 9.8%

Value $15.88M Shares 472,798 Est. Cost $18.40 Unrealized +24.3%

WGS GENEDX HOLDINGS CORP 8.5%

Value $13.69M Shares 127,062 Est. Cost $9.34 Unrealized +1066.6%

FRSH FRESHWORKS INC 8.2%

Value $13.3M Shares 1,129,758 Est. Cost $17.17 Unrealized -21.5%

AL AIR LEASE CORP 7.7%

Value $12.51M Shares 196,479 Est. Cost $30.18 Unrealized +96.8%

EPD ENTERPRISE PRODS PARTNERS L P 6.6%

Value $10.63M Shares 339,877 Est. Cost $24.20 Unrealized —

EQIX EQUINIX INC 5.2%

Value $8.392M Shares 10,715 Est. Cost $490.46 Unrealized +57.9%

NVGS NAVIGATOR HLDGS LTD 4.9%

Value $8.009M Shares 517,066 Est. Cost $9.59 Unrealized +65.7%

CDNA CAREDX INC 4.8%

Value $7.698M Shares 529,414 Est. Cost $14.68 Unrealized -2.9%

DV DOUBLEVERIFY HLDGS INC 4.6%

Value $7.497M Shares 625,770 Est. Cost $15.78 Unrealized -6.0%

BLFS BIOLIFE SOLUTIONS INC 4.3%

Value $6.995M Shares 274,217 Est. Cost $17.91 Unrealized +32.4%

BL BLACKLINE INC 4.3%

Value $6.906M Shares 130,050 Est. Cost $48.77 Unrealized +10.8%

TMCI TREACE MED CONCEPTS INC 4.0%

Value $6.498M Shares 968,464 Est. Cost $6.47 Unrealized +0.9%

VERX VERTEX INC 3.6%

Value $5.763M Shares 232,479 Est. Cost $30.97 Unrealized -6.5%

PCRX PACIRA BIOSCIENCES INC 3.4%

Value $5.499M Shares 213,402 Est. Cost $37.81 Unrealized -35.0%

PROF PROFOUND MED CORP 2.7%

Value $4.385M Shares 896,671 Est. Cost $10.51 Unrealized -51.5%

FIVN FIVE9 INC 2.5%

Value $4.051M Shares 167,386 Est. Cost $46.56 Unrealized -43.2%

ASPN ASPEN AEROGELS INC 2.4%

Value $3.936M Shares 565,570 Est. Cost $5.75 Unrealized +22.6%

OSUR OraSure Technologies Inc 2.4%

Value $3.876M Shares 1,207,440 Est. Cost $3.41 Unrealized -8.0%

HZO MarineMax Inc 2.4%

Value $3.846M Shares 151,845 Est. Cost $25.48 Unrealized 0.0%

AMPL AMPLITUDE INC 2.3%

Value $3.784M Shares 352,991 Est. Cost $11.86 Unrealized 0.0%

AOSL ALPHA & OMEGA SEMICONDUCTOR LT 2.1%

Value $3.361M Shares 120,196 Est. Cost $12.07 Unrealized +129.9%

NVDA NVIDIA CORPORATION 1.9%

Value $3.089M Shares 16,555 Est. Cost $118.07 Unrealized +47.6%

KLTR KALTURA INC 1.3%

Value $2.035M Shares 1,413,010 Est. Cost $1.85 Unrealized -8.7%

CNF CNFINANCE HLDGS LTD 0.2%

Value $337K Shares 80,359 Est. Cost $4.19 Unrealized —

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
AMRC	AMERESCO INC	472,798	$15.88M	9.8%	$18.40	+24.3%	CLA	02361E108
WGS	GENEDX HOLDINGS CORP	127,062	$13.69M	8.5%	$9.34	+1066.6%	COM CL A	81663L200
FRSH	FRESHWORKS INC	1,129,758	$13.3M	8.2%	$17.17	-21.5%	CLASS A COM	358054104
AL	AIR LEASE CORP	196,479	$12.51M	7.7%	$30.18	+96.8%	CL A	00912X302
EPD	ENTERPRISE PRODS PARTNERS L P	339,877	$10.63M	6.6%	$24.20	—	COM	293792107
EQIX	EQUINIX INC	10,715	$8.392M	5.2%	$490.46	+57.9%	COM	29444U700
NVGS	NAVIGATOR HLDGS LTD	517,066	$8.009M	4.9%	$9.59	+65.7%	SHS	Y62132108
CDNA	CAREDX INC	529,414	$7.698M	4.8%	$14.68	-2.9%	COM	14167L103
DV	DOUBLEVERIFY HLDGS INC	625,770	$7.497M	4.6%	$15.78	-6.0%	COM	25862V105
BLFS	BIOLIFE SOLUTIONS INC	274,217	$6.995M	4.3%	$17.91	+32.4%	COM NEW	09062W204
BL	BLACKLINE INC	130,050	$6.906M	4.3%	$48.77	+10.8%	COM	09239B109
TMCI	TREACE MED CONCEPTS INC	968,464	$6.498M	4.0%	$6.47	+0.9%	COM	89455T109
VERX	VERTEX INC	232,479	$5.763M	3.6%	$30.97	-6.5%	CL A	92538J106
PCRX	PACIRA BIOSCIENCES INC	213,402	$5.499M	3.4%	$37.81	-35.0%	COM	695127100
PROF	PROFOUND MED CORP	896,671	$4.385M	2.7%	$10.51	-51.5%	COM NEW	74319B502
FIVN	FIVE9 INC	167,386	$4.051M	2.5%	$46.56	-43.2%	COM	338307101
ASPN	ASPEN AEROGELS INC	565,570	$3.936M	2.4%	$5.75	+22.6%	COM	04523Y105
OSUR	OraSure Technologies Inc	1,207,440	$3.876M	2.4%	$3.41	-8.0%	COM	68554V108
HZO	MarineMax Inc	151,845	$3.846M	2.4%	$25.48	0.0%	COM	567908108
AMPL	AMPLITUDE INC	352,991	$3.784M	2.3%	$11.86	0.0%	COM CL A	03213A104
AOSL	ALPHA & OMEGA SEMICONDUCTOR LT	120,196	$3.361M	2.1%	$12.07	+129.9%	SHS	G6331P104
NVDA	NVIDIA CORPORATION	16,555	$3.089M	1.9%	$118.07	+47.6%	COM	67066G104
KLTR	KALTURA INC	1,413,010	$2.035M	1.3%	$1.85	-8.7%	COM	483467106
CNF	CNFINANCE HLDGS LTD	80,359	$337K	0.2%	$4.19	—	SPON ADS	18979T204