What is the 13F Pro Quality Score for TGEN?

13F Pro ranks TECOGEN INC. (TGEN) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View TGEN's current score at https://13fpro.ai/research/TGEN (free sign-up required for the full ranking).

Where does 13F Pro source TGEN data?

All TECOGEN INC. fundamentals and ownership data come directly from SEC EDGAR. TECOGEN INC. files with the SEC under CIK 1537435. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is TGEN in?

TECOGEN INC. (TGEN) is classified in the Industrials sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/industrials.

How often is TGEN research updated on 13F Pro?

TGEN's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

TECOGEN INC.(TGEN)Stock Analysis

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13F Pro Quality Score

24.3/100

Rank #2,589 of 2,879 stocks

View Industrials peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Aug 14, 2026.

Revenue Growth

51.3/100

Profitability

14.0/100

Balance Sheet

12.9/100

Earnings Quality

30.0/100

Free Cash Flow

10.6/100

Institutional Flow

52.6/100

Revenue Scale

6.7/100

Dilution Risk

50.6/100

TGEN Stock Analysis & AI Quality Score

AI stock analysis and institutional research for TECOGEN INC. (TGEN), a Industrials sector company. 13F Pro's AI-powered ranking engine scores TGEN at 24.3/100 on a 32-signal composite quality model, placing it at rank #2,589 of 2,879 stocks — the bottom half of the AI-ranked universe. Areas of concern include revenue scale (6.7) and free cash flow (10.6), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q1 2026), TECOGEN INC. reports quarterly revenue of $6.3M, net income of $-2.1M, free cash flow of $-3.2M. Top institutional holders of TGEN by reported 13-F value include VANGUARD CAPITAL MANAGEMENT, BARD ASSOCIATES, Clear Harbor Asset Management,, based on the most recent SEC filings. TGEN trades on the NYSE exchange and files with the SEC under CIK 1537435. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate TGEN daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for TECOGEN INC. directly from SEC EDGAR. TECOGEN INC.'s 13F Pro composite quality score has ranged between 17 and 38 since 2021, currently 24.3 — a stable long-term trajectory across 20 quarterly and live scoring snapshots.

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Fun facts about TECOGEN INC.

Quirks, history, and lore behind TGEN — the kind of stuff that makes a stock memorable.

1
The Basics
A small-cap U.S. industrials company headquartered in Massachusetts, selling equipment that sits on-site at commercial and industrial facilities to generate energy locally.
2
The Numbers
Annual revenue in the low tens of millions of dollars — a genuine micro-cap — with a business built around selling and servicing a relatively small fleet of units rather than mass production.
3
The History
The company traces its roots back to the 1980s, spinning out of a larger industrial parent to focus specifically on natural-gas-powered onsite generation technology.
4
The Secret
Its real edge is combined heat and power (CHP) — squeezing electricity AND useful heat from a single gas input, meaning customers waste almost nothing and slash their utility bills.
5
The Lore
Its units hum away inside hospitals, universities, and hotels that can't afford the grid going dark — essentially a permanent backup and baseload system rolled into one quiet machine.
6
The Giveaway
The ticker spells out the technology: this Waltham, MA micro-cap makes cogeneration systems powered by natural gas, and its name is basically just "tech" plus "cogen" smooshed together.

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Revenue

Q1 2026

$6.3M

Net Income

Q1 2026

$-2.1M

Free Cash Flow

Q1 2026

$-3.2M

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro+

Revenue

+7.7% YoY

$27.1MFY 2025

FY20 $28.3MFY22 $25.0MFY23 $25.1MFY25 $27.1M

Net Income

-79.4% YoY

$-8.2MFY 2025

FY20 $-6.2MFY22 $-2.4MFY23 $-4.6MFY25 $-8.2M

Operating Income

-86.8% YoY

$-8.2MFY 2025

FY20 $-6.0MFY22 $-2.3MFY23 $-4.4MFY25 $-8.2M

EPS (Diluted)

-57.9% YoY

$-0.30FY 2025

FY20 $-0.25FY22 $-0.10FY23 $-0.19FY25 $-0.30

Total Assets

+33.1% YoY

$37.0MFY 2025

FY20 $30.1MFY22 $28.3MFY23 $27.8MFY25 $37.0M

Op. Cash Flow

-1112.0% YoY

$-9.9MFY 2025

FY20 $1.4MFY22 $-1.4MFY23 $-817.8KFY25 $-9.9M

Metric	FY 2025	FY 2023	FY 2022	FY 2020	FY 2019	FY 2018
Revenue	$27.1M +7.7%	$25.1M +0.5%	$25.0M -11.5%	$28.3M -15.5%	$33.4M -6.8%	$35.9M
Net Income	$-8.2M -79.4%	$-4.6M -87.8%	$-2.4M +60.2%	$-6.2M -30.6%	$-4.7M +17.5%	$-5.7M
Operating Income	$-8.2M -86.8%	$-4.4M -87.9%	$-2.3M +60.6%	$-6.0M -27.9%	$-4.7M +15.9%	$-5.5M
EPS (Diluted)	$-0.30 -57.9%	$-0.19 -90.0%	$-0.10 +60.0%	$-0.25	—	$-0.23
Total Assets	$37.0M +33.1%	$27.8M -1.6%	$28.3M -6.1%	$30.1M -26.9%	$41.1M -17.6%	$49.9M
Operating Cash Flow	$-9.9M -1112.0%	$-817.8K +39.5%	$-1.4M -196.1%	$1.4M +131.4%	$-4.5M -16.3%	$-3.9M

AI Insight: TGEN Financial Trends

TECOGEN swung from modest revenue growth to contraction while losses accelerated; Q4 2025 marked a sharp deterioration.

• Revenue peaked at $7M in Q1–Q3 2025, then collapsed to $5M in Q4 2025 and recovered only to $6M in Q1 2026.

• Net loss widened from $1M–$2M per quarter (Q2 2024–Q2 2025) to $4M in Q4 2025; Q1 2026 loss of $2M remains elevated.

• Operating cash flow deteriorated from $4M positive in Q4 2024 to negative $3M–$4M in Q2 2025 onward.

⚠ Equity surged from $10M to $25M in Q3 2025 (unusual one-quarter jump), then fell to $20M; source and sustainability unclear.

⚠ Operating margin slipped to –67% (–$4M op income on $5M revenue) in Q4 2025; Q1 2026 margin of –33% signals ongoing operational stress.

AI Insight: TGEN Ratio Trends

Tecogen remains deeply unprofitable across all metrics; Q4 2025 marked a severe deterioration before partial recovery in Q1 2026.

• Operating margin collapsed to -77.8% in Q4 2025, worst quarter on record, then recovered to -33.7% in Q1 2026.

• ROIC improved from -76.5% in Q4 2025 to -43.3% in Q1 2026, but remains deeply negative across entire dataset.

• ROE degraded from -27.4% in Q1 2025 to -73.8% in Q4 2025, reflecting severe equity destruction.

⚠ Q4 2025 operational crisis: all profitability metrics hit multi-quarter lows; driver and sustainability unknown.

⚠ TTM margins at -37.5% OpMargin and -49.6% ROIC indicate no path to profitability evident in trailing twelve months.

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Available Research

13F Pro tracks comprehensive data for TECOGEN INC. including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of TGEN

VANGUARD CAPITAL MANAGEMENT LLC
$2.0M769,964 sh
BARD ASSOCIATES INC
$1.8M688,309 sh
Clear Harbor Asset Management, LLC
$1.7M650,000 sh
Portolan Capital Management, LLC
$1.1M443,555 sh
Herald Investment Management Ltd
$1.1M420,000 sh
Arosa Capital Management LP
$896.0K350,000 sh
Palisades Investment Partners, LLC
$854.8K333,907 sh
UBS Group AG
$818.8K319,836 sh
SUSQUEHANNA INTERNATIONAL GROUP, LLP
$753.7K294,400 sh
Meros Investment Management, LP
$746.8K291,705 sh

Fund	Value	Shares
VANGUARD CAPITAL MANAGEMENT LLC	$2.0M	769,964
BARD ASSOCIATES INC	$1.8M	688,309
Clear Harbor Asset Management, LLC	$1.7M	650,000
Portolan Capital Management, LLC	$1.1M	443,555
Herald Investment Management Ltd	$1.1M	420,000
Arosa Capital Management LP	$896.0K	350,000
Palisades Investment Partners, LLC	$854.8K	333,907
UBS Group AG	$818.8K	319,836
SUSQUEHANNA INTERNATIONAL GROUP, LLP	$753.7K	294,400
Meros Investment Management, LP	$746.8K	291,705

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Is TGEN a good stock to buy?

13F Pro's AI-powered analysis of TECOGEN INC. (TGEN) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Industrials sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for TGEN are available on the TGEN stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing.

Which hedge funds own TGEN?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling TGEN. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of TECOGEN INC.'s investment landscape.