Essex Investment Management Co LLC 13F Holdings · Q2 2026
Essex Investment Management Co LLC reported 303 securities worth $763.37M in its SEC 13F filing for Q2 2026 (period ended 2026-06-30). Top holdings: TSEM (3.60%), LINC (2.22%), KNSA (2.02%). Among its top 25 positions this quarter: 1 new, 2 added, 22 trimmed.
| Rank | Ticker | Company | Value | % Portfolio | Shares | Action |
|---|---|---|---|---|---|---|
| 1 | TSEM | TOWER SEMICONDUCTOR LTD | $27.5M | 3.60% | 105,543 | Trimmed |
| 2 | LINC | LINCOLN EDL SVCS CORP | $17.0M | 2.22% | 340,366 | Trimmed |
| 3 | KNSA | KINIKSA PHARMACEUTICALS INTL P | $15.4M | 2.02% | 241,382 | Trimmed |
| 4 | OUST | OUSTER INC | $14.1M | 1.85% | 226,028 | Added |
| 5 | LGND | LIGAND PHARMACEUTICALS INC | $13.8M | 1.80% | 43,567 | Trimmed |
| 6 | CECO | CECO ENVIRONMENTAL CORP | $13.6M | 1.79% | 150,416 | Trimmed |
| 7 | STRL | STERLING INFRASTRUCTURE INC | $13.6M | 1.78% | 16,155 | Trimmed |
| 8 | AIP | ARTERIS INC | $13.5M | 1.77% | 277,665 | Trimmed |
| 9 | AGX | ARGAN INC | $12.4M | 1.62% | 15,467 | Trimmed |
| 10 | MIRM | MIRUM PHARMACEUTICALS INC | $12.4M | 1.62% | 105,669 | Trimmed |
| 11 | GHM | GRAHAM CORP | $11.6M | 1.51% | 93,405 | Trimmed |
| 12 | DRS | LEONARDO DRS INC | $10.7M | 1.40% | 250,215 | Trimmed |
| 13 | ADPT | ADAPTIVE BIOTECHNOLOGIES CORP | $10.1M | 1.33% | 472,763 | Trimmed |
| 14 | WERN | WERNER ENTERPRISES INC | $10.1M | 1.32% | 231,625 | New |
| 15 | HCI | HCI GROUP INC | $9.9M | 1.29% | 56,260 | Trimmed |
| 16 | COHU | COHU INC | $9.7M | 1.27% | 131,170 | Trimmed |
| 17 | GEV | GE VERNOVA INC | $9.7M | 1.27% | 8,283 | Trimmed |
| 18 | AAPL | APPLE INC | $9.4M | 1.23% | 32,427 | Trimmed |
| 19 | AMSC | AMERICAN SUPERCONDUCTOR CORP | $9.2M | 1.21% | 221,933 | Trimmed |
| 20 | BWAY | BRAINSWAY LTD | $9.2M | 1.20% | 592,606 | Trimmed |
| 21 | TTI | TETRA TECHNOLOGIES INC DEL | $8.4M | 1.10% | 741,007 | Trimmed |
| 22 | LYTS | LSI INDS INC OHIO | $7.9M | 1.03% | 295,820 | Added |
| 23 | MRVL | MARVELL TECHNOLOGY INC | $7.7M | 1.01% | 25,911 | Trimmed |
| 24 | GS | GOLDMAN SACHS GROUP INC | $7.6M | 1.00% | 7,513 | Trimmed |
| 25 | KTOS | KRATOS DEFENSE & SEC SOLUTIONS | $7.7M | 1.00% | 153,576 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30
Every position in this 13F-HR, with its change from the prior quarter.
13F holdings, latest quarter
SourceSEC EDGAR13F-HR