Home/Smart Money/ESSEX INVESTMENT MANAGEMENT CO LLC
§ 13F · FUND PROFILE

ESSEX INVESTMENT MANAGEMENT CO LLC.

Institutional filer · behavioral pattern: Other. Summary pending.
AUM · $550.0T (13F)Positions · 298Turnover · · Q4Filed · Feb 13, 2026
CONCENTRATION
Top 10 holdings
NEW BUYS
0
+$54.4T deployed
EXITS
0
No exits
SECTOR SHIFT
No prior quarter data
3YR HIT RATE
Top-5 overlap
§ 01 · TOP HOLDINGS

The book · Q4 2025

FILED FEB 13, 2026
#TickerNameShares$ value% portΔ Q4
1TSEMTOWER SEMICONDUCTOR LTD193K$22.6T3.4%−2%
2KTOSKRATOS DEFENSE & SEC SOLUTIONS190K$14.4T2.2%−22%
3STRLSTERLING INFRASTRUCTURE INC45K$13.7T2.1%−2%
4HCIHCI GROUP INC59K$11.3T1.7%−2%
5LGNDLIGAND PHARMACEUTICALS INC60K$11.3T1.7%−2%
6INSMINSMED INC62K$10.9T1.7%−28%
7KNSAKINIKSA PHARMACEUTICALS INTL P251K$10.4T1.6%+1%
8GSATGLOBALSTAR INC167K$10.2T1.6%−14%
9ADPTADAPTIVE BIOTECHNOLOGIES CORP624K$10.1T1.5%−2%
10AAPLAPPLE INC35K$9.5T1.4%−4%
§ 02 · SECTOR ALLOCATION

Where the money is

Sector data pending
§ 03 · THE ESSEX SIGNAL

AC read

ESSEX INVESTMENT MANAGEMENT CO LLC is a Other fund managing $549965.8 trillion in assets. The fund runs a broad portfolio of 298 positions.

Read the full dossier →
§ 04 · FILING HISTORY

Q-by-Q deltas

1 FILINGS
Q4 2025
Steady book
+0 buys · 0 exits · 0 changed
Q3 2025
Steady book
+0 buys · 0 exits · 0 changed
Q2 2025
Steady book
+0 buys · 0 exits · 0 changed
Q1 2025
Steady book
+0 buys · 0 exits · 0 changed