Gagnon Advisors, LLC
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed April 22, 2026), Gagnon Advisors, LLC reported 22 stock positions worth $135.9 million. Its top holding was Enterprise Products Partners (EPD) at 9.5% of the portfolio, followed by Ameresco Class A (AMRC, 8.9%) and Equinix (EQIX, 7.7%). Compared with Q4 2025, it opened 2 new positions, sold out of 3, added to 6 and reduced 1. The biggest buy was a new position in iShares 0-3 Month Treasury B (SGOV) and the biggest sale an exit from Sumisho Air Lease (AL).
- Most Recent 13F
- Q2 2026
- Location
- New York, NY
- CIK
- 0001599466
- Portfolio Value
- $135.9M (Q1 2026)
- SEC Filing
- 0001019056-26-000079 ↗ filed Apr 22, 2026
Holdings Value
Holdings 22 stocks · $135.9M
| EPD Enterprise Products Partners | 9.46% | 339,877 | $12.9M | No change |
| AMRC Ameresco Inc. Class A | 8.87% | 472,798 | $12.1M | No change |
| EQIX Equinix Inc. | 7.73% | 10,715 | $10.5M | No change |
| NVGS Navigator Holdings Ltd. | 7.68% | 539,881 | $10.4M | Add +4.4% |
| SGOV iShares 0-3 Month Treasury B | 7.08% | 95,621 | $9.6M | New |
| WGS Genedx Holdings Corp. | 7.00% | 148,225 | $9.5M | Add +16.7% |
| CDNA Caredx Inc. | 6.81% | 532,892 | $9.3M | No change |
| PCRX Pacira Biosciences Inc. | 5.86% | 352,637 | $8.0M | Add +35.2% |
| PROF Profound Medical Corp. | 4.59% | 962,186 | $6.2M | No change |
| FRSH Freshworks Inc. Class A | 4.59% | 776,212 | $6.2M | Add +37.4% |
| BLFS Biolife Solutions Inc. | 3.85% | 274,217 | $5.2M | No change |
| FIVN FIVE9 Inc. | 3.75% | 336,277 | $5.1M | No change |
| BL Blackline Inc. | 3.54% | 130,050 | $4.8M | No change |
| AMPL Amplitude Inc. Class A | 3.19% | 634,987 | $4.3M | Add +38.9% |
| DV Doubleverify Holdings Inc. | 3.06% | 438,039 | $4.2M | No change |
| OSUR Orasure Technologies Inc. | 2.66% | 1,207,440 | $3.6M | No change |
| VERX Vertex Inc. Class A | 2.60% | 297,050 | $3.5M | Add +27.8% |
| HNGE Hinge Health Inc. Class A | 2.29% | 80,787 | $3.1M | New |
| AOSL Alpha & Omega Semiconductor | 1.96% | 120,196 | $2.7M | No change |
| HZO Marinemax Inc. | 1.94% | 97,242 | $2.6M | Reduce -50.0% |
| KLTR Kaltura Inc. | 1.27% | 1,413,010 | $1.7M | No change |
| CNF Cnfinance Holdings Ltd. | 0.23% | 80,359 | $314K | No change |
Portfolio Sells Q4 2025 → Q1 2026
Portfolio Buys Q4 2025 → Q1 2026
| SGOV iShares 0-3 Month Treasury B | New | 7.08% | +7.08 |
| HNGE Hinge Health Inc. Class A | New | 2.29% | +2.29 |
| NVGS Navigator Holdings Ltd. | Add +4.4% | 7.68% | +1.99 |
| PCRX Pacira Biosciences Inc. | Add +35.2% | 5.86% | +1.58 |
| FRSH Freshworks Inc. Class A | Add +37.4% | 4.59% | +0.19 |
| AMPL Amplitude Inc. Class A | Add +38.9% | 3.19% | −0.18 |
| VERX Vertex Inc. Class A | Add +27.8% | 2.60% | −0.35 |
| WGS Genedx Holdings Corp. | Add +16.7% | 7.00% | −3.49 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 23 | $157.3M | CDNA, AMRC, EPD, WGS, EQIX |
| Q1 2026 | 22 | $135.9M | EPD, AMRC, EQIX, NVGS, SGOV |
| Q4 2025 | 23 | $157.5M | WGS, AMRC, AL, EPD, CDNA |
| Q3 2025 | 24 | $162.0M | AMRC, WGS, FRSH, AL, EPD |
| Q2 2025 | 24 | $148.8M | WGS, PSIX, AL, EPD, CDNA |
| Q1 2025 | 28 | $141.8M | EPD, WGS, AL, PSIX, CDNA |
| Q4 2024 | 26 | $156.2M | WGS, PSIX, EPD, AL, CDNA |
| Q3 2024 | 27 | $154.8M | PSIX, CDNA, WGS, EPD, AL |
| Q2 2024 | 27 | $131.3M | EPD, CDNA, AL, NVGS, AOSL |
| Q1 2024 | 26 | $115.3M | AL, EPD, NVGS, BL, FIVN |