ESSEX INVESTMENT MANAGEMENT CO LLC SNES — SENESTECH INC

Ownership history in ESSEX INVESTMENT MANAGEMENT CO LLC  ·  4 quarters on record

AI Ownership Summary

ESSEX INVESTMENT MANAGEMENT CO LLC reported SENESTECH INC (SNES) in 4 quarterly 13F filings from 2025 Q3 through 2026 Q2. Peak portfolio weight reached 0.02% in 2025 Q3. The latest visible filing shows SNES at 0.01% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this SNES ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was ESSEX INVESTMENT MANAGEMENT CO LLC's position in SENESTECH INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q2

SNES was reported at 0.01% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.02% in 2025 Q3

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2025 Q3 to 2026 Q2

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

SNES stock page ESSEX INVESTMENT MANAGEMENT CO LLC fund profile ESSEX INVESTMENT MANAGEMENT CO LLC full holdings
How ESSEX INVESTMENT MANAGEMENT CO LLC held SNES — position size vs. price
% of Fund (quarterly)    SNES price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 4 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q2 REDUCED — — — 26,203 -91 -0.3% 0.01% $39K 2026-08-06 $1.27
2026 Q1 ADDED — — — 26,294 +4,002 +18.0% 0.01% $43K 2026-05-11 $1.73
2025 Q4 REDUCED 14.9% -23.4% ✅ 22,292 -3,891 -14.9% 0.01% $48K 2026-02-13 $2.00
2025 Q3 INITIATED — — — 26,183 — — 0.02% $115K 2025-11-06 $3.04

🏢 Other funds also holding SNES

As of 2026 Q2 — sorted by position size

SABBY MANAGEMENT, LLC 3Y 7Y 0.19% DIVERSIFY WEALTH MANAGEMENT, LLC 0.0% Diversify Advisory Services, LLC 0.0% XTX Topco Ltd 3Y 0.0% RENAISSANCE TECHNOLOGIES LLC 3Y 7Y 0.0% VANGUARD FIDUCIARY TRUST CO 0.0% CITADEL ADVISORS LLC 3Y 7Y 0.0% GEODE CAPITAL MANAGEMENT, LLC 3Y 7Y 0.0% NORTHERN TRUST CORP 3Y 7Y 0.0% Caitong International Asset Management Co., Ltd 0.0%

FAQ About ESSEX INVESTMENT MANAGEMENT CO LLC and SNES

These are the practical questions this page is built to answer before you even open the full history table.

How long has ESSEX INVESTMENT MANAGEMENT CO LLC reported owning SNES?

ESSEX INVESTMENT MANAGEMENT CO LLC reported SNES across 4 quarterly 13F filings, from 2025 Q3 through 2026 Q2.

What was the largest reported SNES position in ESSEX INVESTMENT MANAGEMENT CO LLC's portfolio?

The largest reported portfolio weight for SNES was 0.02% in 2025 Q3.

What is the latest reported SNES position on this page?

The most recent filing on this page is 2026 Q2, when ESSEX INVESTMENT MANAGEMENT CO LLC reported 26,203 shares, equal to 0.01% of portfolio, with an estimated market value of $39K.

What does the chart on this SNES ownership page compare?

The chart compares ESSEX INVESTMENT MANAGEMENT CO LLC's quarterly SNES portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did ESSEX INVESTMENT MANAGEMENT CO LLC time their SNES position?

Based on 13F filing dates vs. subsequent SNES price moves, ESSEX INVESTMENT MANAGEMENT CO LLC correctly timed 1 out of 3 reported position changes (33%). The annualised alpha on SNES relative to SPY over the holding period was -99.9%.

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