GAGNON SECURITIES LLC
13F Reported Value
ⓘ$518.8M
Holdings
83
Latest Filing
2026-06-30
Filing Quarter
Q2 2026
Portfolio Overview
GAGNON SECURITIES LLC disclosed 83 positions worth $518.8M in its Form 13F-HR for Q2 2026, led by $CDNA (CareDx, Inc.) at 9.7% of the equity portfolio, followed by $WGS and $ENSG. During the quarter the fund opened 4 new positions and exited 6 — including a new stake in $NOV and a full exit from $NVGS. The portfolio is most concentrated in Healthcare (43.3% of disclosed assets). All figures are sourced directly from GAGNON SECURITIES LLC’s Form 13F-HR filing with the SEC under CIK 1125725.
AI Fund Analysis
StableSector Allocation
AUM History
Top Equity Holdings by Value
Quarterly Activity — Q2 2026
Click any card to unlockTop Holdings
- 67.5#361
Quality
$50.5M1,770,735 sh - 35.4#2,307
Quality
$36.0M524,865 sh - 67.9#337
Quality
$27.9M173,911 sh - 42.9
Quality
$22.8M826,562 sh - 54.4
Quality
$21.4M73,170 sh - 61.4
Quality
$18.8M510,576 sh - 28.2
Quality
$18.0M1,030,371 sh - 55.0
Quality
$17.6M221,792 sh - 59.0
Quality
$17.4M16,720 sh - 50.0
Quality
$17.2M325,410 sh
| Company | Quality | Value | Shares |
|---|---|---|---|
 CareDx, Inc.$CDNA | 67.5#361 | $50.5M | 1,770,735 |
 GeneDx Holdings Corp.$WGS | 35.4#2,307 | $36.0M | 524,865 |
 ENSIGN GROUP, INC$ENSG | 67.9#337 | $27.9M | 173,911 |
 Ameresco, Inc.$AMRC | 42.9 | $22.8M | 826,562 |
 GENERAC HOLDINGS INC.$GNRC | 54.4 | $21.4M | 73,170 |
 ENTERPRISE PRODUCTS PARTNERS L.P.$EPD | 61.4 | $18.8M | 510,576 |
 QuidelOrtho Corp$QDEL | 28.2 | $18.0M | 1,030,371 |
 CHEESECAKE FACTORY INC$CAKE | 55.0 | $17.6M | 221,792 |
 EQUINIX INC$EQIX | 59.0 | $17.4M | 16,720 |
 CARMAX INC$KMX | 50.0 | $17.2M | 325,410 |
Unlock AI quality scores for every holding
32-signal composite ranking on each of GAGNON SECURITIES LLC's 83 positions.
Showing top 10 of 83 holdings.
Sector Allocation
Healthcare
$224.6M
Technology
$133.0M
Consumer Discretionary
$58.0M
Industrials
$34.5M
Energy
$31.4M
Real Estate
$25.4M
Other
$5.6M
Financials
$3.3M
Full Holdings — GAGNON SECURITIES LLC (Q2 2026)
All 83 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.
| # | Ticker | Company | Value | Weight | QoQ | Quality |
|---|---|---|---|---|---|---|
| 1 | $CDNA | CareDx, Inc. | $50.5M | 9.7% | +1% | 67.5 |
| 2 | $WGS | GeneDx Holdings Corp. | $36.0M | 6.9% | +73% | 35.4 |
| 3 | $ENSG | ENSIGN GROUP, INC | $27.9M | 5.4% | -3% | 67.9 |
| 4 | $AMRC | Ameresco, Inc. | $22.8M | 4.4% | -2% | 42.9 |
| 5 | $GNRC | GENERAC HOLDINGS INC. | $21.4M | 4.1% | -2% | 54.4 |
| 6 | $EPD | ENTERPRISE PRODUCTS PARTNERS L.P. | $18.8M | 3.6% | -1% | 61.4 |
| 7 | $QDEL | QuidelOrtho Corp | $18.0M | 3.5% | +155% | 28.2 |
| 8 | $CAKE | CHEESECAKE FACTORY INC | $17.6M | 3.4% | -1% | 55 |
| 9 | $EQIX | EQUINIX INC | $17.4M | 3.4% | -1% | 59 |
| 10 | $KMX | CARMAX INC | $17.2M | 3.3% | +5% | 50 |
| 11 |  $FRSH | Freshworks Inc. | $15.8M | 3.0% | -10% | 68.6 |
| 12 |  $PCRX | Pacira BioSciences, Inc. | $15.4M | 3.0% | -1% | 51.5 |
| 13 |  $FIVN | Five9, Inc. | $15.4M | 3.0% | +16% | 59.7 |
| 14 |  $HNGE | Hinge Health, Inc. | $15.2M | 2.9% | +47% | 74.9 |
| 15 |  $BLFS | BIOLIFE SOLUTIONS INC | $15.1M | 2.9% | -0% | 62.1 |
| 16 |  $PROF | Profound Medical Corp. | $13.0M | 2.5% | +1% | — |
| 17 |  $CARG | CarGurus, Inc. | $12.5M | 2.4% | +35% | 63.2 |
| 18 |  $TMCI | TREACE MEDICAL CONCEPTS, INC. | $12.1M | 2.3% | -42% | 25.6 |
| 19 |  $NOV | NOV Inc. | $11.7M | 2.3% | NEW | 47.8 |
| 20 |  $ISRG | INTUITIVE SURGICAL INC | $11.6M | 2.2% | -8% | 79.9 |
| 21 |  $BL | BLACKLINE, INC. | $10.5M | 2.0% | +27% | 52.7 |
| 22 |  $ASPN | ASPEN AEROGELS INC | $9.7M | 1.9% | -18% | 28.6 |
| 23 |  $PRLB | Proto Labs Inc | $9.5M | 1.8% | +5% | 53.5 |
| 24 |  $VERX | Vertex, Inc. | $8.7M | 1.7% | +63% | 57.5 |
| 25 |  $AMPL | Amplitude, Inc. | $8.1M | 1.6% | -0% | 35.4 |
| 26 |  $HZO | MARINEMAX INC | $7.7M | 1.5% | -4% | 42.4 |
| 27 |  $OSUR | ORASURE TECHNOLOGIES INC | $7.1M | 1.4% | -7% | 12.6 |
| 28 |  $DV | DoubleVerify Holdings, Inc. | $5.7M | 1.1% | +7% | 61.6 |
| 29 |  $CELC | Celcuity Inc. | $5.6M | 1.1% | -0% | — |
| 30 |  $CMG | CHIPOTLE MEXICAN GRILL INC | $5.3M | 1.0% | -2% | 65.1 |
| 31 |  $CTRE | CareTrust REIT, Inc. | $5.2M | 1.0% | -2% | 74.1 |
| 32 |  $PNTG | Pennant Group, Inc. | $5.0M | 1.0% | -2% | 62.6 |
| 33 | — | WHITECAP RES INC - COM NEW | $4.5M | 0.9% | -0% | — |
| 34 |  $ICUI | ICU MEDICAL INC/DE | $4.3M | 0.8% | -1% | 49 |
| 35 |  $KLTR | KALTURA INC | $4.2M | 0.8% | -0% | 31.2 |
| 36 |  $MCHP | MICROCHIP TECHNOLOGY INC | $2.4M | 0.5% | -2% | 52.9 |
| 37 |  $GNTX | GENTEX CORP | $1.4M | 0.3% | +0% | 64.7 |
| 38 |  $GNL | Global Net Lease, Inc. | $1.4M | 0.3% | -6% | 45.8 |
| 39 |  $SLG | SL GREEN REALTY CORP | $1.3M | 0.3% | +0% | 42.5 |
| 40 |  $SAM | BOSTON BEER CO INC | $1.3M | 0.3% | +1% | 44.4 |
| 41 |  $NCNO | nCino, Inc. | $1.2M | 0.2% | -5% | 60.9 |
| 42 |  $FLG | FLAGSTAR BANK, NATIONAL ASSOCIATION | $1.1M | 0.2% | -0% | 37.6 |
| 43 |  $APPS | Digital Turbine, Inc. | $1.1M | 0.2% | +0% | 43.4 |
| 44 |  $WEAV | Weave Communications, Inc. | $998,703 | 0.2% | +359% | 43.2 |
| 45 |  $DOCU | DOCUSIGN, INC. | $928,645 | 0.2% | -2% | 65.7 |
| 46 |  $CNF | CNFinance Holdings Ltd. | $920,596 | 0.2% | +6% | — |
| 47 |  $GOOG | Alphabet Inc. | $913,438 | 0.2% | +0% | 78.2 |
| 48 |  $MRVL | Marvell Technology, Inc. | $870,734 | 0.2% | -57% | 76.5 |
| 49 |  $TECH | BIO-TECHNE Corp | $864,050 | 0.2% | +24% | 58.9 |
| 50 |  $DVN | DEVON ENERGY CORP/DE | $785,948 | 0.1% | -0% | 74.8 |
| 51 |  $MU | MICRON TECHNOLOGY INC | $783,763 | 0.1% | -37% | 86.2 |
| 52 | — | NINTENDO LTD - COM | $740,674 | 0.1% | +1% | — |
| 53 |  $CGNX | COGNEX CORP | $709,571 | 0.1% | +0% | 66.9 |
| 54 |  $NVDA | NVIDIA CORP | $699,915 | 0.1% | -4% | 85.9 |
| 55 |  $CVLT | COMMVAULT SYSTEMS INC | $690,792 | 0.1% | +11% | 62.3 |
| 56 |  $GOOGL | Alphabet Inc. | $681,574 | 0.1% | -0% | 78.2 |
| 57 |  $ONTO | ONTO INNOVATION INC. | $646,771 | 0.1% | -24% | 61.9 |
| 58 |  $T | AT&T INC. | $639,589 | 0.1% | -4% | 65.7 |
| 59 |  $HIMX | Himax Technologies, Inc. | $605,899 | 0.1% | -12% | — |
| 60 |  $PFE | PFIZER INC | $562,172 | 0.1% | -47% | 62 |
| 61 |  $LTH | Life Time Group Holdings, Inc. | $549,911 | 0.1% | -1% | 60.9 |
| 62 |  $MTSI | MACOM Technology Solutions Holdings, Inc. | $487,254 | 0.1% | -65% | 69.4 |
| 63 |  $VIAV | VIAVI SOLUTIONS INC. | $476,832 | 0.1% | -31% | 51.5 |
| 64 |  $META | Meta Platforms, Inc. | $472,600 | 0.1% | +0% | 79.6 |
| 65 |  $SHOP | SHOPIFY INC. | $459,346 | 0.1% | +2% | 64.9 |
| 66 |  $ETSY | ETSY INC | $433,524 | 0.1% | -0% | 61.2 |
| 67 |  $SBUX | STARBUCKS CORP | $413,359 | 0.1% | -1% | 58.2 |
| 68 |  $MRK | Merck & Co., Inc. | $409,530 | 0.1% | -0% | 59.9 |
| 69 | — | CES ENERGY SOLUTIONS CORP - COM | $389,504 | 0.1% | +0% | — |
| 70 |  $AKAM | AKAMAI TECHNOLOGIES INC | $373,898 | 0.1% | +9% | 59.5 |
| 71 |  $WRBY | Warby Parker Inc. | $345,300 | 0.1% | NEW | 54.3 |
| 72 |  $RNG | RingCentral, Inc. | $331,993 | 0.1% | +1% | 63.5 |
| 73 |  $VCEL | Vericel Corp | $324,910 | 0.1% | NEW | 62.8 |
| 74 |  $BYND | BEYOND MEAT, INC. | $285,953 | 0.1% | NEW | 38.4 |
| 75 |  $PL | Planet Labs PBC | $276,702 | 0.1% | +0% | 38.4 |
| 76 |  $ELVA | Electrovaya Inc. | $276,224 | 0.1% | +0% | — |
| 77 |  $RNTX | Rein Therapeutics, Inc. | $238,233 | 0.1% | -4% | — |
| 78 |  $RMBS | RAMBUS INC | $236,012 | 0.1% | -35% | 70.2 |
| 79 |  $BX | Blackstone Inc. | $228,280 | 0.0% | +0% | 74.4 |
| 80 |  $MSFT | MICROSOFT CORP | $207,399 | 0.0% | +2% | 79.8 |
| 81 |  $ATNM | Actinium Pharmaceuticals, Inc. | $178,499 | 0.0% | -10% | — |
| 82 |  $PTEN | PATTERSON UTI ENERGY INC | $159,916 | 0.0% | -94% | 49.7 |
| 83 |  $RDHL | RedHill Biopharma Ltd. | $74,702 | 0.0% | +0% | — |
New Positions (4)
Browse Top Institutional Investors
13F Pro tracks 8,700+ institutional investors filing 13F reports with the SEC.
to search all 8,700+ institutional filers.
Available Analysis
13F Pro tracks comprehensive institutional data for GAGNON SECURITIES LLC including:
Track GAGNON SECURITIES LLC's Full Portfolio
See every holding, quarter-over-quarter changes, sector allocation, and accumulation patterns for GAGNON SECURITIES LLC and 8,700+ other institutional investors.
Free tier includes full 13F search and fund profiles. Pro starts at $6.67/mo (billed annually).
AI-Powered Hedge Fund Analysis: GAGNON SECURITIES LLC
13F Pro is an AI hedge fund tracker and stock research platform. For GAGNON SECURITIES LLC (SEC CIK: 1125725), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.
Every holding in GAGNON SECURITIES LLC's portfolio is scored on a 32-signal AI quality ranking (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.