Gagnon Advisors, LLC
CIK 1599466 · View on SEC EDGAR ↗
- Portfolio value
- $157.3M
- Positions
- 23
- As of
- June 30, 2026
Portfolio value QoQ: +15.7% 13F does not disclose cash
- Top 10 holdings weight
- 67.17%
- Top 25 holdings weight
- 100.00%
- Positions above 1%
- 21
- Effective number of positions
- 17.2
Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)
Turnover Q2 2026: 15.48% Est. buys $22,690,617 · sells $22,724,653
Median holding: 5.0 quarters Tracked Q4 2024–Q2 2026 · 62.2% still held
- New positions
- 4
- Increased
- 5
- Decreased
- 0
- Closed
- 3
On this page
- Performance vs S&P How this manager's 13F portfolio performed against the S&P 500.
- Sector breakdown How the portfolio splits across market sectors.
- Portfolio Every stock this institution reports holding, from its latest 13F.
- Biggest new bets Brand-new positions opened in the latest quarter.
- Top moves The biggest position increases and decreases this quarter.
- Exited positions Positions the manager fully sold out of last quarter.
Performance vs S&P 500
Annualized: +4.5% · S&P 500: +18.0%
Approximates a buy-and-hold portfolio built from quarterly SEC 13F snapshots. Excludes cash, short positions, options/derivatives, and non-13(f) securities — reflects the disclosed long-equity book only, not total fund AUM. SEC filing lag is up to 45 days; this is not a real-time-copyable timing.
Priceable coverage: 91.8% · Options excluded: 0.0%
Sector breakdown
Full portfolio 23 positions
| Type | Streak | 8Q trend | |||||
|---|---|---|---|---|---|---|---|
| CDNA CareDx, Inc. - Common Stock | $15,586,451 | 9.91% | 546,893 | $6,335,446 | Up ×1 | ||
| AMRC Ameresco, Inc. Class A Common Stock | $13,049,225 | 8.30% | 472,798 | $992,876 | |||
| EPD Enterprise Products Partners L.P. Common Stock | $12,493,879 | 7.94% | 339,877 | $-367,067 | |||
| WGS GeneDx Holdings Corp. - Class A Common Stock | $12,210,776 | 7.76% | 177,870 | $2,691,767 | Up ×2 | ||
| EQIX Equinix, Inc. - Common Stock | $11,169,209 | 7.10% | 10,715 | $665,937 | |||
| HNGE Hinge Health, Inc. Class A Common Stock | $9,404,232 | 5.98% | 113,304 | $6,289,085 | Up ×1 | ||
| PCRX Pacira BioSciences, Inc. - Common Stock | $8,946,401 | 5.69% | 352,637 | $976,805 | |||
| FRSH Freshworks Inc. - Class A Common Stock | $7,855,265 | 5.00% | 776,212 | $1,622,283 | |||
| BLFS BioLife Solutions, Inc. - Common Stock | $7,743,888 | 4.92% | 274,217 | $2,511,828 | |||
| FIVN Five9, Inc. - Common Stock | $7,169,426 | 4.56% | 336,277 | $2,068,104 | |||
| PROF Profound Medical Corp. - common stock | $6,398,537 | 4.07% | 962,186 | $163,572 | |||
| Unknown issuer (CUSIP: 000000000) | $6,119,731 | 3.89% | 328,488 | Up ×1 | |||
| TMCI Treace Medical Concepts, Inc. - Common Stock | $6,105,455 | 3.88% | 1,534,034 | ||||
| OSUR OraSure Technologies, Inc. - Common Stock | $5,385,182 | 3.42% | 1,207,440 | $1,762,862 | |||
| AMPL Amplitude, Inc. - Class A Common Stock | $4,857,651 | 3.09% | 634,987 | $527,040 | |||
| DV DoubleVerify Holdings, Inc. Common Stock | $4,748,343 | 3.02% | 438,039 | $586,972 | |||
| QDEL QuidelOrtho Corporation - Common Stock | $4,222,814 | 2.69% | 241,097 | Up ×1 | |||
| VERX Vertex, Inc. - Class A Common Stock | $4,151,409 | 2.64% | 361,621 | $619,484 | Up ×2 | ||
| BL BlackLine, Inc. - Common Stock | $3,650,504 | 2.32% | 130,050 | $-1,161,346 | |||
| HZO MarineMax, Inc. (FL) Common Stock | $3,561,002 | 2.26% | 97,242 | $929,633 | |||
| KLTR Kaltura, Inc. - Common Stock | $1,836,913 | 1.17% | 1,413,010 | $113,041 | |||
| CNF CNFinance Holdings Limited American Depositary Shares, each representing two hundred (200) Ordinary Shares | $299,207 | 0.19% | 108,017 | $-14,997 | Up ×1 | ||
| BYND Beyond Meat, Inc. - Common stock | $291,660 | 0.19% | 388,880 | Up ×1 | |||
| No matches | |||||||
Biggest new bets
New positions opened this quarter, largest first.
Top movers (QoQ)
| Security | Action | Shares Δ | Value Δ |
|---|---|---|---|
| CDNA | Bought more | +14K | +$6.3M |
| HNGE | Bought more | +33K | +$6.3M |
| WGS | Bought more | +30K | +$2.7M |
| BLFS | Price move only | +0 | +$2.5M |
| FIVN | Price move only | +0 | +$2.1M |
| OSUR | Price move only | +0 | +$1.8M |
| FRSH | Price move only | +0 | +$1.6M |
| BL | Price move only | +0 | -$1.2M |
| AMRC | Price move only | +0 | +$993K |
| PCRX | Price move only | +0 | +$977K |
Exited positions
Includes corporate events (mergers, delistings) — not all exits are sells
Closed positions reflect 13F reporting changes; for index managers these are often mechanical (delisting, M&A, index rebalancing), not active decisions.
| Security | Quarter | Shares before | Value before | Price since exit |
|---|---|---|---|---|
| AL | March 31, 2026 | 196,479 | $12,619,846 | No longer tracked |
| PSIX | Sept. 30, 2025 | 180,405 | $11,668,595 | -62.3% |
| NVGS | June 30, 2026 | 539,881 | $10,435,900 | 17.1% |
| SGOV | June 30, 2026 | 95,621 | $9,625,210 | -0.1% |
| VRN | June 30, 2025 | 890,693 | $5,896,388 | No longer tracked |
| ETWO | June 30, 2025 | 2,342,234 | $4,684,468 | No longer tracked |
| EXAS | Sept. 30, 2025 | 86,972 | $4,621,692 | No longer tracked |
| ASPN | Dec. 31, 2025 | 565,570 | $3,936,367 | 90.8% |
| TMCI | March 31, 2026 | 1,534,034 | $3,758,383 | 227.6% |
| NVDA | March 31, 2026 | 16,555 | $3,087,508 | 25.7% |
| AOSL | June 30, 2026 | 120,196 | $2,663,543 | -43.4% |
| MXCT | June 30, 2025 | 934,196 | $2,550,355 | -36.0% |
| IONQ | June 30, 2025 | 105,589 | $2,330,349 | -1.6% |
| NCNO | June 30, 2025 | 77,511 | $2,129,227 | -26.7% |