TGEN

TECOGEN INC.

NYSE · Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip · Inc. DE · CIK 0001537435
$5.73 +0.35% $171.4M
Insider Buying Cluster (5 insiders)High Impact Filing (7/10)4 New Institutional Positions
Vol
Market Cap$171.4M
Cap SizeMicro Cap
Inst. Holders26 funds
Inst. Value$8.1M
Inst. Activity4 buys / 1 sells
Insider Activity8B / 0S
Insider Net $$134.0K
SEC Reports6
Exchange NYSE·Sector Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip·Inc. DE·CIK 0001537435·Prev Close $5.71

Recent Activity

May 12, 2026 SEC
Tecogen reported Q1 2026 revenue of $6.34M (down 12.9% YoY) and a net loss of $2.12M (loss of $0.07 per share), signific
8-K — Impact 6/10
May 7, 2026 earnings_calendar
TGEN Q1 2026 Earnings Scheduled — 2026-05-07
Apr 24, 2026 Insider
Ghoniem Ahmed bought 12,723 shares
Director @ $0.7860 ($10.0K)
Apr 24, 2026 Insider
Ghoniem Ahmed acquired via exercise 12,723 shares
Director @ $0.7860 ($10.0K)
Apr 13, 2026 Insider
Hirsch Susan B bought 5,000 shares
Director @ $3.73 ($18.6K)
Apr 8, 2026 SEC
Tecogen Inc. extended its advisory agreement with John N. Hatsopoulos through March 31, 2028. This is a routine extensio
8-K — Impact 2/10
Mar 27, 2026 SEC
Three corporate insiders at TECOGEN INC. purchased shares in the open market over the past week, including a director bu
CLUSTER — Impact 5/10
Inst.
RENAISSANCE TECHNOLOGIES LLC — DOUBLED
272,300 shares ($697.1K)

Price Targets

Historical data — last covering-analyst action Aug 2025. No current recommendation available.
$8.83 (Aug 2025)
Current $5.73 Low $7.50 Median $9.00 High $10.00 3 analysts
$7.50 $10.00

Analyst Ratings

Historical distribution89% buy · 9 analysts · last covering-analyst action Aug 2025
2Strong Buy
6Buy
1Hold
0Sell
0Strong Sell
Historical Analyst Actions
DateFirmActionRating
Aug 18, 2025 Roth Capital INITIATE Buy
Aug 11, 2023 HC Wainwright & Co. REITERATE Buy → Buy
May 12, 2023 HC Wainwright & Co. REITERATE Buy
Mar 13, 2020 HC Wainwright & Co. MAINTAIN Buy
Aug 15, 2018 Maxim Group MAINTAIN Buy → Buy

Earnings Estimates

PeriodEPS Est.RangeGrowth#
Current Q $-0.08 $-0.08 — $-0.08 1
Next Q $-0.07 ▼ -40.0% $-0.07 — $-0.07 3% YoY 1
Current FY $-0.24 ▲ +4.0% $-0.24 — $-0.24 1
Next FY $0.21 $0.21 — $0.21 188% YoY 1

Top Institutional Holders

FundValueMove
VANGUARD CAPITAL MANAGEMENT LLC$2.0M
SUSQUEHANNA INTERNATIONAL GROUP, LLP$753.7K
RENAISSANCE TECHNOLOGIES LLC$697.1KDOUBLED
CITADEL ADVISORS LLC$594.9K
MARSHALL WACE, LLP$531.1KTRIM

Recent Insider Trades

DateInsiderTypeValue
Apr 24, 2026Ghoniem AhmedBUY$10.0K
Apr 24, 2026Ghoniem AhmedM$10.0K
Apr 13, 2026Hirsch SusanBUY$18.6K
Mar 27, 2026Lewis EarlBUY$12.6K
Mar 27, 2026Hirsch SusanBUY$25.4K
26 institutional holders with $8.1M total value (3,194,483 shares) as of 2026-Q1. Top holders: VANGUARD, SUSQUEHANNA, RENAISSANCE. Net buying activity: 4 institutions added/increased vs 1 reduced.

Top Institutional Holders — 2026-Q1

#FundSharesValue% of TrackedLast Move
1VANGUARD CAPITAL MANAGEMENT LLC769,964$2.0M24.2%
2SUSQUEHANNA INTERNATIONAL GROUP, LLP294,400$753.7K9.3%
3RENAISSANCE TECHNOLOGIES LLC272,300$697.1K8.6%DOUBLED +401.5%
4CITADEL ADVISORS LLC232,400$594.9K7.3%
5MARSHALL WACE, LLP207,467$531.1K6.5%TRIM -27.5%
6RAYMOND JAMES FINANCIAL INC185,794$475.6K5.8%
7BlackRock, Inc.184,779$473.0K5.8%
8CITADEL ADVISORS LLC147,472$377.5K4.6%
9HighTower Advisors, LLC132,665$339.6K4.2%
10SUSQUEHANNA INTERNATIONAL GROUP, LLP109,457$280.2K3.4%
11VANGUARD FIDUCIARY TRUST CO96,442$246.9K3.0%
12GROUP ONE TRADING LLC83,922$214.8K2.6%ADD +48.3%
13SUSQUEHANNA INTERNATIONAL GROUP, LLP77,300$197.9K2.4%
14MORGAN STANLEY76,736$196.4K2.4%DOUBLED +212.6%
15STATE STREET CORP69,226$177.2K2.2%ADD +68.4%
16TWO SIGMA INVESTMENTS, LP67,418$172.6K2.1%
17CITADEL ADVISORS LLC50,200$128.5K1.6%
18GAMCO INVESTORS, INC. ET AL40,000$102.4K1.3%
19GOLDMAN SACHS GROUP INC25,106$64.3K0.8%
20GABELLI FUNDS LLC20,000$51.2K0.6%

Recent Position Changes

FundActionPrev SharesCurr SharesChange %ValueQuarter
RENAISSANCE TECHNOLOGIES LLCDOUBLED54,300272,300+401.5%$697.1K2026-Q1
MARSHALL WACE, LLPTRIM286,325207,467-27.5%$531.1K2026-Q1
GROUP ONE TRADING LLCADD56,57883,922+48.3%$214.8K2026-Q1
COMMONWEALTH EQUITY SERVICES, LLCADD11,77416,124+36.9%$41.3K2026-Q1
NATIONAL BANK OF CANADA /FI/DOUBLED230500+117.4%$1.3K2026-Q1
MARSHALL WACE, LLPDOUBLED49,089286,325+483.3%$1.4M2025-Q4
MORGAN STANLEYDOUBLED22,38569,978+212.6%$345.7K2025-Q4
GROUP ONE TRADING LLCADD33,95256,578+66.6%$279.5K2025-Q4
RENAISSANCE TECHNOLOGIES LLCTRIM102,20054,300-46.9%$268.2K2025-Q4
BANK OF AMERICA CORP /DE/DOUBLED4,83610,784+123.0%$53.3K2025-Q4
STATE STREET CORPADD41,40069,726+68.4%$614.3K2025-Q3
MORGAN STANLEYDOUBLED60022,385+3630.8%$197.2K2025-Q3
UBS Group AGDOUBLED39,588+319500.0%$84.5K2025-Q3
BANK OF AMERICA CORP /DE/DOUBLED1164,836+4069.0%$42.6K2025-Q3
7 unique insiders with 10 transactions. Net insider value: $134.0K ($134.0K bought, $0.00 sold).

Insider Transactions

DateInsiderTitleTypeSharesPriceValue
Apr 24, 2026Ghoniem AhmedDirectorBUY12,723$0.7860$10.0K
Apr 24, 2026Ghoniem AhmedDirectorEXERCISE12,723$0.7860$10.0K
Apr 13, 2026Hirsch Susan BDirectorBUY5,000$3.73$18.6K
Mar 27, 2026Lewis EarlDirectorBUY5,000$2.52$12.6K
Mar 27, 2026Hirsch Susan BDirectorBUY10,000$2.54$25.4K
Mar 26, 2026Lewis EarlDirectorBUY5,000$2.88$14.4K
Mar 23, 2026Whiting John Kimball IVGeneral Counsel & SecretaryBUY10,000$2.38$23.8K
Mar 20, 2026Rangesh AbinandChief Executive OfficerBUY3,000$2.30$6.9K
Mar 20, 2026Hatsopoulos JohnDirectorEXERCISE50,000$0.8800$44.0K
Mar 20, 2026Deschenes Roger P.CAOBUY10,000$2.23$22.3K

No press releases analyzed yet. Press releases are collected from GlobeNewsWire and analyzed by the LLM pipeline.

Historical analyst distribution (last covering-analyst action Aug 2025): 89% buy across 9 analysts — 2 strong buy, 6 buy, 1 hold, 0 sell, 0 strong sell. No current recommendation available.

Analyst Price Targets

Historical data — last covering-analyst action Aug 2025. No current recommendation available.
$8.83 mean target (Aug 2025)
$7.50 Low $10.00 High
MetricValue
Current Price$5.73
Target Low$7.50
Target Mean$8.83
Target Median$9.00
Target High$10.00
# Analysts3
Recommendation— (no recent coverage)

Earnings Estimates & Revisions

PeriodEPS AvgEPS LowEPS HighEPS Growth30d Rev.Up/DownRev. AvgRev. GrowthAnalysts
Current Q
2026-06-30
$-0.08 $-0.08 $-0.08 +0.0% 0↑ 1↓ $0.0B 1
Next Q
2026-09-30
$-0.07 $-0.07 $-0.07 2.8% -40.0% 0↑ 1↓ $0.0B -7.2% 1
Current FY
2026-12-31
$-0.24 $-0.24 $-0.24 +4.0% 0↑ 1↓ $0.0B 2.8% 1
Next FY
2027-12-31
$0.21 $0.21 $0.21 187.5% +0.0% 0↑ 1↓ $0.1B 122.8% 1

Current Quarter EPS Revision History

TimepointEPS EstimateChange
Current$-0.080
7d ago$-0.080
30d ago$-0.080
60d ago$-0.060-0.020
90d ago$-0.060-0.020
4 analyst firms have rated this stock: 0 upgrades, 0 downgrades, 2 initiations.

Historical Analyst Actions

DateAnalyst FirmActionPrevious RatingNew Rating
Aug 18, 2025 Roth Capital INITIATE Buy
Aug 11, 2023 HC Wainwright & Co. REITERATE Buy Buy
May 12, 2023 HC Wainwright & Co. REITERATE Buy
Mar 13, 2020 HC Wainwright & Co. MAINTAIN Buy
Aug 15, 2018 Maxim Group MAINTAIN Buy Buy
Oct 4, 2016 Rodman & Renshaw INITIATE Buy

Monthly Consensus History

PeriodStrong BuyBuyHoldSellStrong SellBuy %Distribution
Jun 1, 20262610089%
May 1, 20262610089%
Apr 1, 20262410086%
Mar 1, 20262410086%
Feb 1, 20262410086%
Jan 1, 20262410086%
Strong BuyBuyHoldSellStrong Sell

No congressional trading data available for this ticker. Data is sourced from Senate and House financial disclosure filings.

No Reddit sentiment data available yet. Sentiment is analyzed from Reddit investment communities on a rolling basis.

May 7, 2026
earnings_calendar
TGEN Q1 2026 Earnings Scheduled — 2026-05-07
Mar 18, 2026
earnings_calendar
TGEN Q4 2025 Earnings After Market Close — 2026-03-18