Q2 2026 13F · SEC CIK 1599466
Gagnon Advisors, LLC
Hedge fundFiled 2026-08-05 for Q2 2026. Open the filing ↗ · All SEC filings ↗
- Reported 13F value
- $157.3M
- Reported positions
- 23
- Top holdings a year, 3 yrs
- +13.8%
- Assets under management
- $187.3M
Gagnon Advisors, LLC is a hedge fund that reported 23 positions worth $157.3M in its Q2 2026 13F, filed 2026-08-05. Its largest holdings were CareDx, Inc. (CDNA, 9.9%), Ameresco Inc (AMRC, 8.3%), Enterprise Prods Partners L (EPD, 7.9%). A portfolio copying its top holdings returned 13.8% a year over the last 3 years, against 20.4% for the S&P 500.
Gagnon Advisors, LLC holdings all 23 positions.
Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.
| Stock | % of 13F value | Share change | Reported value |
|---|---|---|---|
| CDNACareDx, Inc. | 9.9% | +2.6% | $15.6M |
| AMRCAmeresco Inc | 8.3% | +0.0% | $13.0M |
| EPDEnterprise Prods Partners L | 7.9% | +0.0% | $12.5M |
| WGSGenedx Holdings Corp | 7.8% | +20.0% | $12.2M |
| EQIXEquinix Inc | 7.1% | +0.0% | $11.2M |
| HNGEHinge Health, Inc. | 6.0% | +40.3% | $9.4M |
| PCRXPacira Biosciences Inc | 5.7% | +0.0% | $8.9M |
| FRSHFreshworks Inc Class A Com | 5.0% | +0.0% | $7.9M |
| BLFSBiolife Solutions Inc | 4.9% | +0.0% | $7.7M |
| FIVNFive9 Inc | 4.6% | +0.0% | $7.2M |
| PROFProfound Med Corp | 4.1% | +0.0% | $6.4M |
| 000000000Koninklijke Philips N V | 3.9% | — | $6.1M |
| TMCITreace Med Concepts Inc | 3.9% | — | $6.1M |
| OSUROrasure Technologies Inc | 3.4% | +0.0% | $5.4M |
| AMPLAmplitude Inc | 3.1% | +0.0% | $4.9M |
| DVDoubleverify Hldgs Inc | 3.0% | +0.0% | $4.7M |
| QDELQuidelortho Corp | 2.7% | — | $4.2M |
| VERXVertex Inc | 2.6% | +21.7% | $4.2M |
| BLBlackline Inc | 2.3% | +0.0% | $3.7M |
| HZOMarinemax Inc | 2.3% | +0.0% | $3.6M |
| KLTRKaltura Inc | 1.2% | +0.0% | $1.8M |
| CNFCnfinance Hldgs Ltd | 0.2% | +34.4% | $299K |
| BYNDBeyond Meat Inc | 0.2% | — | $292K |
What Gagnon Advisors, LLC bought and sold in Q2 2026, against Q1 2026.
New positions
- Koninklijke Philips N V3.9% of 13F
- TMCI Treace Med Concepts Inc3.9% of 13F
- QDEL Quidelortho Corp2.7% of 13F
- BYND Beyond Meat Inc0.2% of 13F
Added to
- HNGE Hinge Health, Inc.+40.3% shares
- CNF Cnfinance Hldgs Ltd+34.4% shares
- VERX Vertex Inc+21.7% shares
- WGS Genedx Holdings Corp+20.0% shares
Reduced
No position shrank by more than 5%.
Sold out
- NVGS Navigator Holdings PLCwas 7.7%
- SGOV Ishares Trwas 7.1%
- AOSL Alpha & Omega Semiconductorwas 2.0%
Share counts compared with the Q1 2026 13F; a split also changes share counts.
How the holdings did against the S&P 500.
- 1 year
- +17.2% /yr
- S&P 500 +20.1%
- 3 years
- +13.8% /yr
- S&P 500 +20.4%
- 5 years
- +0.2% /yr
- S&P 500 +11.6%
A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.
Reported 13F value by quarter.
| Quarter | 13F value | Positions |
|---|---|---|
| Q2 2026 | $157.3M | 23 |
| Q1 2026 | $135.9M | 22 |
| Q4 2025 | $157.5M | 23 |
| Q3 2025 | $162.0M | 24 |
| Q2 2025 | $148.8M | 24 |
| Q1 2025 | $141.8M | 28 |
| Q4 2024 | $156.2M | 26 |
| Q3 2024 | $154.8M | 27 |
| Q2 2024 | $131.3M | 27 |
| Q1 2024 | $115.3M | 27 |
| Q4 2023 | $114.5M | 26 |
| Q3 2023 | $119.5M | 28 |
Questions about Gagnon Advisors, LLC's portfolio
What stocks does Gagnon Advisors, LLC own?
Gagnon Advisors, LLC's latest 13F, for Q2 2026 and filed Aug 5, 2026, lists 23 positions worth $157.3M. The largest are CareDx, Inc. (CDNA) at 9.9%, Ameresco Inc (AMRC) at 8.3%, Enterprise Prods Partners L (EPD) at 7.9%, Genedx Holdings Corp (WGS) at 7.8% and Equinix Inc (EQIX) at 7.1%.
What did Gagnon Advisors, LLC buy last quarter?
In Q2 2026, Gagnon Advisors, LLC added a new position in Koninklijke Philips N V, a new position in Treace Med Concepts Inc (TMCI), a new position in Quidelortho Corp (QDEL), a new position in Beyond Meat Inc (BYND), Hinge Health, Inc. (HNGE) (+40.3% shares), Cnfinance Hldgs Ltd (CNF) (+34.4% shares) and Vertex Inc (VERX) (+21.7% shares), compared with its Q1 2026 filing.
What did Gagnon Advisors, LLC sell last quarter?
In Q2 2026, Gagnon Advisors, LLC sold all of Navigator Holdings PLC (NVGS), sold all of Ishares Tr (SGOV) and sold all of Alpha & Omega Semiconductor (AOSL), compared with its Q1 2026 filing.
How has Gagnon Advisors, LLC's portfolio performed?
A portfolio copying Gagnon Advisors, LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +13.8% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +17.2% against +20.1%. Over 5 years: +0.2% a year against +11.6%.
When is Gagnon Advisors, LLC's next 13F filing due?
13F filings are due 45 days after each quarter ends. Gagnon Advisors, LLC's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.
How much money does Gagnon Advisors, LLC manage?
Gagnon Advisors, LLC reported $187.3M of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $157.3M.