ESSEX INVESTMENT MANAGEMENT CO LLC
Top Portfolio Positions
295 positions ·
$628,907,832 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 | 2.30% | |
| STRL |
Sterling Infrastructure, Inc.
Industrials
|
32,057 | $13,055,854 | 2.08% | |
| KNSA |
Kiniksa Pharmaceuticals International, plc
Healthcare
|
249,278 | $12,002,735 | 1.91% | |
| LGND |
Ligand Pharmaceuticals Inc
Healthcare
|
58,460 | $11,671,539 | 1.86% | |
| 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 STXS
Shares Held
Position Value (USD)
25 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $2,925,785 | 1,590,101 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $3,592,643 | 1,562,019 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $4,970,134 | 1,598,114 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $3,274,882 | 1,544,756 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $2,738,725 | 1,556,094 | Shares | Sole | 2025-05-07 | |
| 2024-12-31 | $2,765,557 | 1,212,964 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $2,876,663 | 1,410,129 | Shares | Sole | 2024-10-10 | |
| 2024-06-30 | $2,559,669 | 1,406,412 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $3,116,311 | 1,193,989 | Shares | Sole | 2024-05-03 | |
| 2023-12-31 | $2,057,436 | 1,175,678 | Shares | Sole | 2024-02-08 | |
| 2023-09-30 | $2,068,390 | 1,309,108 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $2,042,449 | 1,334,934 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $1,762,404 | 863,924 | Shares | Sole | 2023-05-04 | |
| 2022-12-31 | $1,441,127 | 696,197 | Shares | Sole | 2023-02-03 | |
| 2022-09-30 | $994,411 | 552,451 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $528,703 | 287,339 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $1,035,612 | 277,644 | Shares | Sole | 2022-05-09 | |
| 2021-12-31 | $1,641,791 | 264,805 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $1,315,334 | 244,486 | Shares | Sole | 2021-11-09 | |
| 2021-06-30 | $2,371,787 | 246,036 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $1,290,004 | 191,965 | Shares | Sole | 2021-05-12 | |
| 2020-12-31 | $1,082,744 | 212,720 | Shares | Sole | 2021-02-12 | |
| 2020-09-30 | $897,205 | 250,616 | Shares | Sole | 2020-11-12 | |
| 2020-06-30 | $1,080,617 | 242,291 | Shares | Sole | 2020-08-04 | |
| 2020-03-31 | $735,351 | 243,494 | Shares | Sole | 2020-05-04 | |
| No 13F history on record for this holder in this stock. | ||||||