13F GuideFiling Basics
What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
AlphaSMO Research GuideRead Guide
CIK: 0001125725
Total reported value
$507.1M
$507.1M
86 檔
30.4%
The Q4 2025 SEC filing reveals that Gagnon Securities LLC held a total portfolio value of $507.1M, covering 86 public equity positions.
Gagnon Securities LLC executed strategic sector rebalancing during Q4 2025, establishing 2 new positions while fully exiting 2 holdings and trimming 26 positions.
In terms of portfolio concentration, the top 5 core holdings (including CDNA, WGS, AL) accounted for 30.4% of total reported equity market value during Q4 2025.
Top New Position Initiated
BX
市值: $227.4K
Top Position Liquidated / Trimmed
PSIX
前期市值: $6.4M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | CDNA | Caredx Inc | Stock-Other | 6.81% | +2.89% | +2.63% | |
| 2 | WGS | Genedx Holdings CORP | Stock-Other | 6.71% | +2.62% | -5.77% | |
| 3 | AL | Air Lease CORP | Stock-Other | 6.50% | — | -17.94% | |
| 4 | ENSG | Ensign Group Inc/the | Stock-Healthcare | 6.40% | -2.86% | -1.36% | |
| 5 | AMRC | Ameresco Inc-cl A | Stock-Other | 4.97% | -0.44% | -3.09% | |
| 6 | ISRG | Intuitive Surgical Inc | Stock-Healthcare | 3.67% | -1.07% | -26.67% | |
| 7 | EXK | Exact Sciences CORP | Stock-Materials | 3.46% | — | -6.70% | |
| 8 | EPD | Enterprise Products Partners | Stock-Energy | 3.44% | -0.79% | -0.22% | |
| 9 | BL | Blackline Inc | Stock-Tech | 3.15% | -0.45% | +0.17% | |
| 10 | PROF | Profound Medical CORP | Stock-Other | 3.12% | -0.34% | +12.18% | |
| 11 | FRSH | Freshworks Inc-cl A | Stock-Other | 3.07% | -0.09% | -34.08% | |
| 12 | NVGS | Navigator Holdings Ltd. | Stock-Other | 3.04% | -3.96% | EXIT | |
| 13 | EQIX | Equinix Inc | Stock-Real Estate | 2.67% | -0.40% | -0.64% | |
| 14 | PCRX | Pacira Biosciences Inc | Stock-Other | 2.64% | -0.18% | +11.45% | |
| 15 | BLFS | Biolife Solutions Inc | Stock-Other | 2.63% | +0.62% | -0.26% | |
| 16 | FIVN | Five9 Inc | Stock-Tech | 2.55% | +0.86% | +108.99% | |
| 17 | KMX | Carmax Inc | Stock-Consumer Disc | 2.52% | +0.42% | +41.86% | |
| 18 | CAKE | Cheesecake Factory Inc/the | Stock-Consumer Disc | 2.33% | +0.64% | -0.33% | |
| 19 | CARG | Cargurus Inc | Stock-Consumer Disc | 2.11% | +0.34% | -0.55% | |
| 20 | GNRC | Generac Holdings Inc | Stock-Industrials | 2.10% | +0.84% | -2.54% | |
| 21 | AMPL | Amplitude Inc-class A | Stock-Other | 1.65% | -0.08% | +36.84% | |
| 22 | HZO | Marinemax Inc | Stock-Other | 1.59% | +0.15% | +23.23% | |
| 23 | TMCI | Treace Medical Concepts Inc | Stock-Other | 1.55% | +0.77% | +37.74% | |
| 24 | VERX | Vertex Inc - Class A | Stock-Other | 1.48% | +0.43% | -3.71% | |
| 25 | CMG | Chipotle Mexican Grill Inc | Stock-Consumer Disc | 1.18% | -0.13% | +30.38% | |
| 26 | PRLB | Proto Labs Inc | Stock-Other | 1.15% | +0.41% | +2.57% | |
| 27 | DV | Doubleverify Holdings Inc | Stock-Other | 1.15% | +0.05% | -27.69% | |
| 28 | CELC | Celcuity Inc | Stock-Other | 1.08% | -0.31% | -1.03% | |
| 29 | CTRE | Caretrust Reit Inc | Stock-Real Estate | 0.98% | -0.10% | -1.93% | |
| 30 | KLTR | Kaltura Inc | Stock-Other | 0.96% | -0.08% | -0.85% | |
| 31 | QDEL | Quidelortho CORP | Stock-Other | 0.93% | +2.03% | +29.94% | |
| 32 | GOOG | Alphabet Inc. | Stock-Comm Services | 0.87% | -0.86% | EXIT | |
| 33 | ICUI | Icu Medical Inc | Stock-Other | 0.84% | -0.04% | +1.12% | |
| 34 | WCPRF | Whitecap Resources Inc | Stock-Other | 0.83% | -0.24% | -0.09% | |
| 35 | PNTG | Pennant Group Inc/the | Stock-Other | 0.79% | +0.01% | -2.93% | |
| 36 | NVDA | Nvidia CORP | Stock-Tech | 0.78% | -0.01% | -0.27% | |
| 37 | OSUR | Orasure Technologies Inc | Stock-Other | 0.77% | +0.21% | -1.57% | |
| 38 | ASPN | Aspen Aerogels Inc | Stock-Other | 0.65% | +0.45% | -35.42% | |
| 39 | TPR | Tapestry Inc | Stock-Consumer Disc | 0.56% | — | -0.03% | |
| 40 | PTEN | Patterson-uti Energy Inc | Stock-Energy | 0.44% | -0.76% | +69.04% | |
| 41 | CNF | Cnfinance Holdings LTD | Stock-Other | 0.39% | -0.10% | -0.11% | |
| 42 | NCNO | Ncino Inc | Stock-Other | 0.38% | -0.04% | +92.10% | |
| 43 | MCHP | Microchip Technology Inc | Stock-Tech | 0.35% | +0.07% | +0.51% | |
| 44 | GNL | Global Net Lease Inc | Stock-Real Estate | 0.30% | -0.09% | -12.01% | |
| 45 | GNTX | Gentex CORP | Stock-Consumer Disc | 0.26% | -0.01% | +0.83% | |
| 46 | SAM | Boston Beer Company Inc-a | Stock-Consumer Staples | 0.25% | -0.13% | -70.45% | |
| 47 | NTDOY | Nintendo Co Ltd-unspons Adr | Stock-Other | 0.24% | -0.08% | +0.25% | |
| 48 | SLG | Sl Green Realty CORP | Stock-Real Estate | 0.24% | +0.04% | -0.57% | |
| 49 | PFE | Pfizer Inc | Stock-Healthcare | 0.22% | -0.18% | +2.76% | |
| 50 | FLG | Flagstar Bank NA | Stock-Financials | 0.19% | -0.01% | -0.11% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | CDNA | Caredx Inc | +1.8% | +2.63% | Add |
| 2 | EXK | Exact Sciences CORP | +1.5% | -6.70% | Trim |
| 3 | PROF | Profound Medical CORP | +1.4% | +12.18% | Add |
| 4 | FIVN | Five9 Inc | +1.1% | +108.99% | Add |
| 5 | WGS | Genedx Holdings CORP | +0.9% | -5.77% | Trim |
| 6 | CELC | Celcuity Inc | +0.6% | -1.03% | Trim |
| 7 | AMPL | Amplitude Inc-class A | +0.6% | +36.84% | Add |
| 8 | KMX | Carmax Inc | +0.5% | +41.86% | Add |
| 9 | NVGS | Navigator Holdings Ltd. | +0.4% | -0.46% | Trim |
| 10 | PCRX | Pacira Biosciences Inc | +0.3% | +11.45% | Add |
| 11 | HZO | Marinemax Inc | +0.3% | +23.23% | Add |
| 12 | CMG | Chipotle Mexican Grill Inc | +0.2% | +30.38% | Add |
| 13 | PTEN | Patterson-uti Energy Inc | +0.2% | +69.04% | Add |
| 14 | QDEL | Quidelortho CORP | +0.2% | +29.94% | Add |
| 15 | BL | Blackline Inc | +0.2% | +0.17% | Add |
| 16 | NCNO | Ncino Inc | +0.2% | +92.10% | Add |
| 17 | ICUI | Icu Medical Inc | +0.2% | +1.12% | Add |
| 18 | KLTR | Kaltura Inc | +0.1% | -0.85% | Trim |
| 19 | CNF | Cnfinance Holdings LTD | +0.1% | -0.11% | Trim |
| 20 | EPD | Enterprise Products Partners | +0.1% | -0.22% | Trim |
| 21 | WCPRF | Whitecap Resources Inc | +0.1% | -0.09% | Trim |
| 22 | GAMB | Gambling.com Group Limited | +0.1% | +357.76% | Add |
| 23 | CARG | Cargurus Inc | +0.1% | -0.55% | Trim |
| 24 | TPR | Tapestry Inc | +0.1% | -0.03% | Trim |
| 25 | PNTG | Pennant Group Inc/the | +0.1% | -2.93% | Trim |
| 26 | PRLB | Proto Labs Inc | +0.1% | +2.57% | Add |
| 27 | WEAV | Weave Communications Inc | +0.1% | +54.77% | Add |
| 28 | EQIX | Equinix Inc | 0% | -0.64% | Trim |
| 29 | SHOP | Shopify Inc - Class A | 0% | -31.08% | Trim |
| 30 | GNTX | Gentex CORP | -0.1% | +0.83% | Add |
| 31 | NTDOY | Nintendo Co Ltd-unspons Adr | -0.1% | +0.25% | Add |
| 32 | SLG | Sl Green Realty CORP | -0.1% | -0.57% | Trim |
| 33 | BLFS | Biolife Solutions Inc | -0.1% | -0.26% | Trim |
| 34 | CAKE | Cheesecake Factory Inc/the | -0.2% | -0.33% | Trim |
| 35 | ISRG | Intuitive Surgical Inc | -0.2% | -26.67% | Trim |
| 36 | OSUR | Orasure Technologies Inc | -0.3% | -1.57% | Trim |
| 37 | GOOG | Alphabet Inc. | -0.3% | +0.14% | Add |
| 38 | VERX | Vertex Inc - Class A | -0.4% | -3.71% | Trim |
| 39 | DV | Doubleverify Holdings Inc | -0.5% | -27.69% | Trim |
| 40 | GNRC | Generac Holdings Inc | -0.5% | -2.54% | Trim |
| 41 | SAM | Boston Beer Company Inc-a | -0.7% | -70.45% | Trim |
| 42 | AMRC | Ameresco Inc-cl A | -0.8% | -3.09% | Trim |
| 43 | AL | Air Lease CORP | -1.2% | -17.94% | Trim |
| 44 | FRSH | Freshworks Inc-cl A | -1.3% | -34.08% | Trim |
| 45 | TMCI | Treace Medical Concepts Inc | -1.5% | +37.74% | Add |
| 46 | ASPN | Aspen Aerogels Inc | -1.8% | -35.42% | Trim |
| 47 | PSIX | Power Solutions Internationa | — | EXIT | Sold out |
| 48 | BLZE | Backblaze Inc-a | — | EXIT | Sold out |
| 49 | BX | Blackstone Inc | — | NEW | New buy |
| 50 | AKAM | Akamai Technologies Inc | — | NEW | New buy |
According to official SEC Form 13F filings, Gagnon Securities LLC reported a total U.S. public equity portfolio value of $507.1M across 86 disclosed positions in Q4 2025.
During Q4 2025, Gagnon Securities LLC's top holdings by market value included CDNA (6.8%)、WGS (6.7%)、AL (6.5%). The largest single position, CDNA, represented 6.8% of total portfolio value.
In Q4 2025, Gagnon Securities LLC made 50 total portfolio adjustments, initiating 2 new buys, adding to 20 positions, trimming 26 holdings, and fully liquidating 2 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.