ESSEX INVESTMENT MANAGEMENT CO LLC
Top Portfolio Positions
296 positions ·
$630,035,267 total
· as of Mar 31, 2026
| Ticker | Company | Shares | Value (USD) | % of Portfolio | Open |
|---|---|---|---|---|---|
| TSEM |
Tower Semiconductor Ltd
Technology
|
115,933 | $20,343,922 | 3.23% | |
| LINC |
Lincoln Educational Services Corp
Consumer Defensive
|
355,304 | $14,453,766 | 2.29% | |
| STRL |
Sterling Infrastructure, Inc.
Industrials
|
32,057 | $13,055,854 | 2.07% | |
| KNSA |
Kiniksa Pharmaceuticals International, plc
Healthcare
|
249,278 | $12,002,735 | 1.91% | |
| LGND |
Ligand Pharmaceuticals Inc
Healthcare
|
58,460 | $11,671,539 | 1.85% | |
| DRS |
Leonardo DRS, Inc.
Industrials
|
261,454 | $11,639,932 | 1.85% | |
| KTOS |
Kratos Defense & Security Solutions, Inc.
Industrials
|
158,844 | $11,200,090 | 1.78% | |
| GSAT |
Globalstar, Inc.
Communication Services
|
165,665 | $11,003,469 | 1.75% | |
| INSM |
INSMED Inc
Healthcare
|
62,676 | $10,248,779 | 1.63% | |
| GHM |
Graham Corp
Industrials
|
128,294 | $10,124,962 | 1.61% |
Portfolio Trend
25 quarters · across all stocks
Holdings in PATK
Shares Held
Position Value (USD)
25 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $5,134,543 | 46,228 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $4,981,382 | 45,941 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $4,848,177 | 46,874 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $4,249,494 | 46,055 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $3,931,278 | 46,491 | Shares | Sole | 2025-05-07 | |
| 2024-12-31 | $4,023,730 | 48,432 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $3,420,960 | 36,043 | Shares | Sole | 2024-10-10 | |
| 2024-06-30 | $3,639,538 | 50,293 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $3,193,832 | 40,100 | Shares | Sole | 2024-05-03 | |
| 2023-12-31 | $2,682,221 | 40,093 | Shares | Sole | 2024-02-08 | |
| 2023-09-30 | $2,795,584 | 55,867 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $4,199,357 | 78,738 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $3,936,708 | 85,817 | Shares | Sole | 2023-05-04 | |
| 2022-12-31 | $3,375,137 | 83,543 | Shares | Sole | 2023-02-03 | |
| 2022-09-30 | $2,500,694 | 85,562 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $2,656,661 | 76,871 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $3,243,858 | 80,693 | Shares | Sole | 2022-05-09 | |
| 2021-12-31 | $3,841,917 | 71,420 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $3,038,448 | 54,714 | Shares | Sole | 2021-11-09 | |
| 2021-06-30 | $2,694,042 | 55,357 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $3,840,868 | 67,780 | Shares | Sole | 2021-05-12 | |
| 2020-12-31 | $3,341,360 | 73,329 | Shares | Sole | 2021-02-12 | |
| 2020-09-30 | $2,069,609 | 53,971 | Shares | Sole | 2020-11-12 | |
| 2020-06-30 | $2,147,954 | 52,603 | Shares | Sole | 2020-08-04 | |
| 2020-03-31 | $1,031,161 | 54,927 | Shares | Sole | 2020-05-04 | |
| No 13F history on record for this holder in this stock. | ||||||