Tecogen (TGEN) Stock Analysis & Price (Updated Oct 16, 2026, 4:00 PM ET)

Updated Oct 16, 2026, 4:00 PM ET

What changed since yesterday

Closed at $2.09, -7.11% vs the prior close of $2.25.
Volume 151.22K shares, 0.9x its 50-day average.
No new SEC filings since the prior session.
No new insider buys or sales reported since the prior session.

TGEN slides 7.1% to $2.09, a 6-month low, 7 down days in a row. Closed at $2.09, -7.11% vs the prior close of $2.25. Day range $2.05–$2.29, opened at $2.28.

Last close$2.09-7.11%

Day range2.05–2.29

Open2.28

Volume151.22K

52-week range1.94–11.90

Avg volume (20d)149.36K

TGEN daily analysis — what happened

A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.

Oct 16, 2026 — TGEN slides 7.1% to $2.09, a 6-month low, 7 down days in a row

Closed at $2.09, -7.11% vs the prior close of $2.25. Day range $2.05–$2.29, opened at $2.28.
Volume was 151.22K shares, 0.9x its 50-day average of 162.23K.
Price is -31.9% vs its 50-day average ($3.07) and -47.1% vs its 200-day average ($3.95).
52-week range $1.94–$11.90; today's close sits at 2% of that range, 82.4% below the 52-week high.
That makes 7 straight losses.

Oct 15, 2026 — TGEN dips 2.2% to $2.25, a 6-month low, 6 down days in a row

Closed at $2.25, -2.17% vs the prior close of $2.30. Day range $2.21–$2.30, opened at $2.26.
Volume was 103.80K shares, 0.6x its 50-day average of 163.27K.
Price is -27.5% vs its 50-day average ($3.10) and -43.3% vs its 200-day average ($3.97).
52-week range $1.94–$12.07; today's close sits at 3% of that range, 81.4% below the 52-week high.
That makes 6 straight losses.

Oct 14, 2026 — TGEN ends flat (+0.0%) to $2.30, 5 down days in a row

Closed at $2.30, +0.00% vs the prior close of $2.30. Day range $2.21–$2.33, opened at $2.25.
Volume was 144.80K shares, 0.9x its 50-day average of 163.96K.
Price is -26.6% vs its 50-day average ($3.13) and -42.2% vs its 200-day average ($3.98).
52-week range $1.94–$12.07; today's close sits at 4% of that range, 80.9% below the 52-week high.
That makes 5 straight losses.
SEC filings that day: 8-K.

Oct 13, 2026 — TGEN dips 2.1% to $2.30, a 6-month low, 4 down days in a row

Closed at $2.30, -2.13% vs the prior close of $2.35. Day range $2.26–$2.39, opened at $2.33.
Volume was 86.60K shares, 0.5x its 50-day average of 166.14K — lighter than usual.
Price is -27.3% vs its 50-day average ($3.16) and -42.5% vs its 200-day average ($4.00).
52-week range $1.94–$12.07; today's close sits at 4% of that range, 80.9% below the 52-week high.
That makes 4 straight losses.

Oct 12, 2026 — TGEN dips 2.9% to $2.35, a 6-month low, 3 down days in a row

Closed at $2.35, -2.89% vs the prior close of $2.42. Day range $2.31–$2.42, opened at $2.42.
Volume was 106.30K shares, 0.6x its 50-day average of 165.50K.
Price is -26.3% vs its 50-day average ($3.19) and -41.4% vs its 200-day average ($4.01).
52-week range $1.94–$12.07; today's close sits at 4% of that range, 80.5% below the 52-week high.
That makes 3 straight losses.

Oct 9, 2026 — TGEN dips 2.0% to $2.42, a 6-month low

Closed at $2.42, -2.02% vs the prior close of $2.47. Day range $2.38–$2.53, opened at $2.52.
Volume was 57.90K shares, 0.3x its 50-day average of 167.99K — lighter than usual.
Price is -24.6% vs its 50-day average ($3.21) and -39.9% vs its 200-day average ($4.03).
52-week range $1.94–$12.07; today's close sits at 5% of that range, 80.0% below the 52-week high.

Oct 8, 2026 — TGEN slides 10.5% to $2.47, a 6-month low

Closed at $2.47, -10.51% vs the prior close of $2.76. Day range $2.35–$2.77, opened at $2.73.
Volume was 254.10K shares, 1.5x its 50-day average of 173.48K.
Price is -23.4% vs its 50-day average ($3.22) and -38.9% vs its 200-day average ($4.04).
52-week range $1.94–$12.07; today's close sits at 5% of that range, 79.5% below the 52-week high.

Oct 7, 2026 — TGEN rises 3.0% to $2.76

Closed at $2.76, +2.99% vs the prior close of $2.68. Day range $2.60–$2.82, opened at $2.66.
Volume was 245.30K shares, 1.4x its 50-day average of 176.51K.
Price is -14.7% vs its 50-day average ($3.23) and -31.9% vs its 200-day average ($4.05).
52-week range $1.94–$12.07; today's close sits at 8% of that range, 77.1% below the 52-week high.

Oct 6, 2026 — TGEN jumps 5.5% to $2.68

Closed at $2.68, +5.51% vs the prior close of $2.54. Day range $2.51–$2.77, opened at $2.58.
Volume was 86.00K shares, 0.5x its 50-day average of 180.71K — lighter than usual.
Price is -17.3% vs its 50-day average ($3.24) and -34.0% vs its 200-day average ($4.06).
52-week range $1.94–$12.07; today's close sits at 7% of that range, 77.8% below the 52-week high.

Oct 5, 2026 — TGEN slides 4.2% to $2.54, a 6-month low, 5 down days in a row

Closed at $2.54, -4.15% vs the prior close of $2.65. Day range $2.51–$2.67, opened at $2.65.
Volume was 105.10K shares, 0.6x its 50-day average of 185.87K — lighter than usual.
Price is -22.0% vs its 50-day average ($3.25) and -37.6% vs its 200-day average ($4.07).
52-week range $1.94–$12.07; today's close sits at 6% of that range, 79.0% below the 52-week high.
That makes 5 straight losses.

Oct 2, 2026 — TGEN ends flat (+0.0%) to $2.65, 4 down days in a row

Closed at $2.65, +0.00% vs the prior close of $2.65. Day range $2.63–$2.78, opened at $2.71.
Volume was 91.40K shares, 0.5x its 50-day average of 189.56K — lighter than usual.
Price is -18.9% vs its 50-day average ($3.27) and -35.2% vs its 200-day average ($4.09).
52-week range $1.94–$12.07; today's close sits at 7% of that range, 78.0% below the 52-week high.
That makes 4 straight losses.

TGEN latest news & SEC filings

Every SEC filing by or about TGEN in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.

Oct 14, 2026 · Form 8-K — Major event / current report

Current report — a filing companies must make within 4 business days of a major event

Item 8.01 — Reported other events the company considers important.

Source: SEC EDGAR filing 0001537435-26-000092