Gagnon Advisors, LLC
In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 12, 2025), Gagnon Advisors, LLC reported 28 stock positions worth $141.8 million. Its top holding was Enterprise Products Partners (EPD) at 8.2% of the portfolio, followed by Genedx (WGS, 7.9%) and Sumisho Air Lease (AL, 6.7%). Compared with Q4 2024, it opened 2 new positions, added to 5 and reduced 2. The biggest buy was a new position in Orasure Technologies (OSUR) and the biggest sale Power Solutions Internationa (PSIX, shares −31%).
- Most Recent 13F
- Q2 2026
- Location
- New York, NY
- CIK
- 0001599466
- Portfolio Value
- $141.8M (Q1 2025)
- SEC Filing
- 0001019056-25-000175 ↗ filed May 12, 2025
Holdings Value
Holdings 28 stocks · $141.8M
| EPD Enterprise Products Partners | 8.18% | 339,877 | $11.6M | No change |
| WGS Genedx Holdings Corp. | 7.94% | 127,062 | $11.3M | Reduce -32.3% |
| AL Sumisho Air Lease Corp. filed as AIR LEASE CORP | 6.69% | 196,479 | $9.5M | No change |
| PSIX Power Solutions Internationa | 5.77% | 323,484 | $8.2M | Reduce -31.2% |
| CDNA Caredx Inc. | 5.17% | 412,875 | $7.3M | No change |
| NVGS Navigator Holdings Ltd. | 4.85% | 517,066 | $6.9M | No change |
| FRSH Freshworks Inc. Class A | 4.68% | 470,434 | $6.6M | No change |
| EQIX Equinix Inc. | 4.47% | 7,778 | $6.3M | Add +17.9% |
| BL Blackline Inc. | 4.44% | 130,050 | $6.3M | Add +25.4% |
| BLFS Biolife Solutions Inc. | 4.42% | 274,217 | $6.3M | No change |
| VRN Veren Inc. | 4.16% | 890,693 | $5.9M | No change |
| AMRC Ameresco Inc. Class A | 4.03% | 472,798 | $5.7M | Add +73.4% |
| VERX Vertex Inc. Class A | 4.00% | 161,813 | $5.7M | Add +40.0% |
| PROF Profound Medical Corp. | 3.68% | 896,671 | $5.2M | No change |
| ETWO E2OPEN Parent Holdings Inc. | 3.30% | 2,342,234 | $4.7M | Add +100.0% |
| FIVN FIVE9 Inc. | 3.21% | 167,386 | $4.5M | No change |
| TMCI Treace Medical Concepts Inc. | 2.90% | 489,891 | $4.1M | No change |
| EXAS Exact Sciences Corp. | 2.66% | 86,972 | $3.8M | No change |
| PCRX Pacira Biosciences Inc. | 2.34% | 133,390 | $3.3M | No change |
| AOSL Alpha & Omega Semiconductor | 2.11% | 120,196 | $3.0M | No change |
| OSUR Orasure Technologies Inc. | 1.89% | 797,277 | $2.7M | New |
| KLTR Kaltura Inc. | 1.84% | 1,386,044 | $2.6M | No change |
| MXCT Maxcyte Inc. | 1.80% | 934,196 | $2.6M | New |
| IONQ Ionq Inc. | 1.64% | 105,589 | $2.3M | No change |
| NCNO Ncino Inc. | 1.50% | 77,511 | $2.1M | No change |
| NVDA Nvidia Corp. | 1.27% | 16,555 | $1.8M | No change |
| DV Doubleverify Holdings Inc. | 0.64% | 67,705 | $905K | No change |
| CNF Cnfinance Hldgs Ltd. | 0.43% | 784,717 | $612K | No change |
Portfolio Sells Q4 2024 → Q1 2025
Portfolio Buys Q4 2024 → Q1 2025
| OSUR Orasure Technologies Inc. | New | 1.89% | +1.89 |
| MXCT Maxcyte Inc. | New | 1.80% | +1.80 |
| ETWO E2OPEN Parent Holdings Inc. | Add +100.0% | 3.30% | +1.31 |
| EQIX Equinix Inc. | Add +17.9% | 4.47% | +0.49 |
| BL Blackline Inc. | Add +25.4% | 4.44% | +0.41 |
| VERX Vertex Inc. Class A | Add +40.0% | 4.00% | +0.05 |
| AMRC Ameresco Inc. Class A | Add +73.4% | 4.03% | −0.07 |
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 |