ESSEX INVESTMENT MANAGEMENT CO LLC is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q2 2026, the fund manages $763M in reported equity holdings across 306 positions. The largest holdings are TSEM (3.6%), LINC (2.2%), KNSA (2.0%), OUST (1.9%), LGND (1.8%). The portfolio is concentrated in Other (81.7%), Technology (8.1%), Industrials (5.4%). Data sourced from SEC EDGAR 13F filings (CIK 201772).