Gagnon Advisors, LLC: 13F holdings, Q2 2026
Hedge fund · SEC EDGAR filings (CIK 1599466) · Explore on the interactive board
Gagnon Advisors, LLC disclosed 23 US equity positions worth $157.3m in its Q2 2026 13F filing (holdings as of June 30, 2026, filed August 5, 2026). Its largest position is CDNA at 9.9% of the reported book, followed by AMRC, EPD. The top ten holdings are 67.2% of the book, and the portfolio behaves like about 17 equal-weight positions. Versus the prior filing it opened 23 new positions, added to 0, reduced 0 and exited 0. Note: this manager's most recent filing is 3934 quarters behind the newest quarter on file, so these figures are history rather than current positioning.
What does Gagnon Advisors, LLC own? Top holdings as of June 30, 2026
Change is measured in shares against the previous filing, so price moves do not read as decisions. This quarter: 23 new, 0 added, 0 reduced, 0 exited.
| # | Stock | Sector | Weight | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|---|
| 1 | CDNA CAREDX INC | Healthcare | 9.9% | $15.6m | 546,893 | – | new |
| 2 | AMRC AMERESCO INC | Industrials | 8.3% | $13.0m | 472,798 | – | new |
| 3 | EPD ENTERPRISE PRODS PARTNERS L P | Energy | 7.9% | $12.5m | 339,877 | – | new |
| 4 | WGS GENEDX HOLDINGS CORP | Healthcare | 7.8% | $12.2m | 177,870 | – | new |
| 5 | EQIX EQUINIX INC | Real Estate | 7.1% | $11.2m | 10,715 | – | new |
| 6 | HNGE HINGE HEALTH INC | Healthcare | 6.0% | $9.4m | 113,304 | – | new |
| 7 | PCRX PACIRA BIOSCIENCES INC | Healthcare | 5.7% | $8.9m | 352,637 | – | new |
| 8 | FRSH FRESHWORKS INC | Technology | 5.0% | $7.9m | 776,212 | – | new |
| 9 | BLFS BIOLIFE SOLUTIONS INC | Healthcare | 4.9% | $7.7m | 274,217 | – | new |
| 10 | FIVN FIVE9 INC | Technology | 4.6% | $7.2m | 336,277 | – | new |
| 11 | PROF PROFOUND MED CORP | 4.1% | $6.4m | 962,186 | – | new | |
| 12 | NAVIGATOR HLDGS LTD | 3.9% | $6.1m | 328,488 | – | new | |
| 13 | TMCI TREACE MED CONCEPTS INC | Healthcare | 3.9% | $6.1m | 1,534,034 | – | new |
| 14 | OSUR OraSure Technologies Inc | Healthcare | 3.4% | $5.4m | 1,207,440 | – | new |
| 15 | AMPL AMPLITUDE INC | Technology | 3.1% | $4.9m | 634,987 | – | new |
| 16 | DV DOUBLEVERIFY HLDGS INC | Communication Services | 3.0% | $4.7m | 438,039 | – | new |
| 17 | QDEL QUIDELORTHO CORP | Healthcare | 2.7% | $4.2m | 241,097 | – | new |
| 18 | VERX VERTEX INC | Technology | 2.6% | $4.2m | 361,621 | – | new |
| 19 | BL BLACKLINE INC | Technology | 2.3% | $3.7m | 130,050 | – | new |
| 20 | HZO MarineMax Inc | 2.3% | $3.6m | 97,242 | – | new | |
| 21 | KLTR KALTURA INC | 1.2% | $1.8m | 1,413,010 | – | new | |
| 22 | CNFINANCE HLDGS LTD | 0.2% | $299.2k | 108,017 | – | new | |
| 23 | BYND BEYOND MEAT INC | Consumer Defensive | 0.2% | $291.7k | 388,880 | – | new |
Sector mix
| Sector | Weight |
|---|---|
| Healthcare | 44.3% |
| Technology | 17.6% |
| Industrials | 8.3% |
| Energy | 7.9% |
| Real Estate | 7.1% |
| Communication Services | 3.0% |
Sectors cover positions whose ticker resolved to a sector; the remainder is unclassified, not cash.
Filing history
| Quarter | Positions | Equity value |
|---|---|---|
| Q2 2026 | 23 | $157.3m |
How concentrated is Gagnon Advisors, LLC's portfolio?
Across every quarter Gagnon Advisors, LLC has filed, its median largest position is 9.9% of the book and its median top-ten weight is 67.2%, which WhaleCreep classifies as concentrated (the gate is a median largest position of 5%).