ESSEX INVESTMENT MANAGEMENT CO LLC
CIK 201772
13F filing for Q2 2026・No. 3,043
- Holdings
- US$763.37M
- Quarter change
- +US$131.64M
- Entries
- 306
- Net bought (estimate)
- −US$13.07M
The quarter change is the holdings' value against the quarter before, price moves included — not what was bought or sold; each institution's page estimates that.
Net bought (estimate)
Each stock's change in shares at the quarter-end price, added up: a new position counts as bought, one sold out as sold, shares held long only. Splits are compared split-adjusted; corporate actions under a new CUSIP are not estimated. An estimate from the filings, not actual trades.
- New 27
- Sold out 26
- Cut 153
- Added 32
- Corporate actions 4
- Unchanged 94
Largest holdings
306 stocks worth US$763.37M, options and bonds left out.
| Stock | This quarter | Shares | Value | Weight |
|---|---|---|---|---|
| TSEMTOWER SEMICONDUCTOR LTDCOM | Cut | 105,543 | US$27.51M | 3.60% |
| LINCOLN EDL SVCS CORPCOM | Cut | 340,366 | US$16.98M | 2.22% |
| KINIKSA PHARMACEUTICALS INTL PCOM | Cut | 241,382 | US$15.44M | 2.02% |
| OUSTOUSTER INCCOM | Added | 226,028 | US$14.13M | 1.85% |
| LGNDLIGAND PHARMACEUTICALS INCCOM | Cut | 43,567 | US$13.77M | 1.80% |
| CECOCECO ENVIRONMENTAL CORPCOM | Cut | 150,416 | US$13.65M | 1.79% |
| STRLSTERLING INFRASTRUCTURE INCCOM | AddedSplit 1:2 | 16,155 | US$13.56M | 1.78% |
| AIPARTERIS INCCOM | Cut | 277,665 | US$13.49M | 1.77% |
| MIRUM PHARMACEUTICALS INCCOM | Cut | 105,669 | US$12.37M | 1.62% |
| AGXARGAN INCCOM | Cut | 15,467 | US$12.35M | 1.62% |
Sign in (free) to see its 50 largest holdings and its trades. Sign in
Filings
The quarter's original 13F filings (SEC).
- 13F-HRFiled August 6, 2026SEC ↗
13F covers long positions in US-listed securities only; the data is SEC's, filed within 45 days of the quarter's end.