Tecogen Inc.
TGEN • XNAS
Tecogen Inc. is a publicly traded company on XNAS, led by Abinand Rangesh, with a market cap of $180.0M. As of Q3 2025, 26% of shares are held by 69 institutional investors, with VANGUARD GROUP INC as the largest holder at 2.93%.
Chief Executive and Financial Officer (Principal Executive and Financial Officer) and TreasurerAbinand Rangesh
Market Cap$180.0M
Overview
Overview of institutional ownership in TGEN as of Q3 2025 with a market cap of $261.6M
All Institutions
- Institutions
- 69
- Value Held
- $67.9M
- Shares Held
- 7.7M
- Avg Position
- $984.1K
- Median Position
- $327.4K
Hedge Funds
- Hedge Funds
- 11
- Value Held
- $16.0M
- Shares Held
- 1.8M
- Avg Position
- $1.5M
- Median Position
- $900.4K
Ownership Breakdown
Based on market cap of $261.6M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in TGEN as of Q3 2025
| Institution | Position Value |
|---|---|
 VANGUARD GROUP INC Institution | $7.7M 0.00% of portfolio |
 BARD ASSOCIATES INC RIA/Wealth | $6.1M 1.62% of portfolio |
 Clear Harbor Asset Management, LLC RIA/Wealth | $5.4M 0.38% of portfolio |
 Portolan Capital Management, LLC Hedge Fund•Long/Short | $5.2M 0.28% of portfolio |
H Herald Investment Management Ltd Institution | $3.9M 0.52% of portfolio |
 Palisades Investment Partners, LLC RIA/Wealth | $3.3M 1.30% of portfolio |
 Arosa Capital Management LP Hedge Fund•Multi-Strategy | $2.5M 4.16% of portfolio |
 SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $2.2M 0.00% of portfolio |
 TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy | $2.2M 0.00% of portfolio |
G GENDELL JEFFREY L Institution | $2.1M 0.04% of portfolio |
Net Capital Flow
Institutional buying and selling activity for TGEN in Q3 2025
- Traded
- +$33.9M
- Buyers
- 55
- Sellers
- 8
- Total Bought
- +$34.1M
- Total Sold
- −$256.8K
- Avg Position
- $956.4K
Biggest Buyers
| Institution | Net Bought |
|---|---|
Palisades Investment Partners, LLC RIA/Wealth | +$3.3M +376.6K shares |
Arosa Capital Management LP Hedge Fund•Multi-Strategy | +$2.5M +287.5K shares |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | +$2.2M +252.0K shares |
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy | +$2.2M +246.7K shares |
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | +$1.9M +213.7K shares |
G GENDELL JEFFREY L Institution | +$1.8M +201.9K shares |
 RAYMOND JAMES FINANCIAL INC RIA/Wealth | +$1.4M +157.9K shares |
 APIS CAPITAL ADVISORS, LLC Hedge Fund•Long/Short | +$1.3M +153.0K shares |
N NEW YORK STATE COMMON RETIREMENT FUND Institution | +$1.2M +137.2K shares |
 GOLDMAN SACHS GROUP INC Institution | +$1.2M +132.8K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
 CORSAIR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy | −$112.4K −12.8K shares |
A Advisory Services Network, LLC RIA/Wealth | −$44.1K −5.0K shares |
 Global Retirement Partners, LLC RIA/Wealth | −$35.0K −5.1K shares |
 SHIKIAR ASSET MANAGEMENT INC RIA/Wealth | −$30.8K −3.5K shares |
G GAMCO INVESTORS, INC. ET AL Institution | −$17.6K −2.0K shares |
 LAZARD ASSET MANAGEMENT LLC Long Only Manager | −$9.0K −1.3K shares |
 HighTower Advisors, LLC RIA/Wealth | −$4.4K −500.0 shares |
 Gordian Capital Singapore Pte Ltd Fund of Funds | −$3.4K −389.0 shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited TGEN in Q3 2025
- New Positions
- 34
- New Value
- $23.4M
- Exited Positions
- 2
- Exited Value
- $44.0K
New Positions
| Institution | Position Value |
|---|---|
Palisades Investment Partners, LLC RIA/Wealth | $3.3M 376.6K shares |
Arosa Capital Management LP Hedge Fund•Multi-Strategy | $2.5M 287.5K shares |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $2.2M 252.0K shares |
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy | $2.2M 246.7K shares |
RAYMOND JAMES FINANCIAL INC RIA/Wealth | $1.4M 157.9K shares |
APIS CAPITAL ADVISORS, LLC Hedge Fund•Long/Short | $1.3M 153.0K shares |
N NEW YORK STATE COMMON RETIREMENT FUND Institution | $1.2M 137.2K shares |
T THOMPSON DAVIS & CO., INC. Institution | $1.0M 118.0K shares |
 GRANAHAN INVESTMENT MANAGEMENT INC/MA Long Only Manager | $989.7K 112.3K shares |
 RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | $900.4K 102.2K shares |
Exited Positions
| Institution | Previous Position |
|---|---|
Global Retirement Partners, LLC RIA/Wealth | $35.0K 5.1K shares |
LAZARD ASSET MANAGEMENT LLC Long Only Manager | $9.0K 1.3K shares |
Options Activity
Institutions with the largest Call and Put options positions in TGEN as of Q3 2025
- Call Positions
- 5
- Call Value
- $2.2M
- Put Positions
- 4
- Put Value
- $4.7M
Call Positions
| Institution | Position Value |
|---|---|
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $971.7K 1.1K contracts |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $444.0K 504.0 contracts |
J JANE STREET GROUP, LLC Institution | $440.5K 500.0 contracts |
W WOLVERINE TRADING, LLC Institution | $178.2K 217.0 contracts |
 Centiva Capital, LP Hedge Fund•Multi-Strategy | $162.1K 184.0 contracts |
Put Positions
| Institution | Position Value |
|---|---|
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $2.3M 2.6K contracts |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $1.2M 1.3K contracts |
J JANE STREET GROUP, LLC Institution | $693.3K 787.0 contracts |
W WOLVERINE TRADING, LLC Institution | $518.1K 631.0 contracts |
Most Committed Institutions
Institutions with TGEN as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
Arosa Capital Management LP Hedge Fund•Multi-Strategy | 4.16% $2.5M |
BARD ASSOCIATES INC RIA/Wealth | 1.62% $6.1M |
Palisades Investment Partners, LLC RIA/Wealth | 1.30% $3.3M |
T THOMPSON DAVIS & CO., INC. Institution | 0.64% $1.0M |
H Herald Investment Management Ltd Institution | 0.52% $3.9M |
Clear Harbor Asset Management, LLC RIA/Wealth | 0.38% $5.4M |
APIS CAPITAL ADVISORS, LLC Hedge Fund•Long/Short | 0.29% $1.3M |
Portolan Capital Management, LLC Hedge Fund•Long/Short | 0.28% $5.2M |
Gordian Capital Singapore Pte Ltd Fund of Funds | 0.18% $129.5K |
M Manatuck Hill Partners, LLC Hedge Fund•Long/Short | 0.16% $440.5K |
Hedge Fund Spotlight
Discover hedge funds investing in TGEN
Portolan Capital Management, LLC
Hedge Fund • Long/Short
Portfolio ManagerGeorge Frederic Mccabe
- Portfolio Value
- $1.8B
- Positions
- 119
- Last Reported
- Q3 2025
Sector Allocation
Position in Tecogen Inc.
- Market Value
- $5.2M
- Shares Held
- 595.8K
- Portfolio Weight
- 0.28%
- Owned Since
- 2025-Q2
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Auto - Parts Consumer Cyclical | $85.6M | 4.63% | |
Hardware, Equipment & Parts Technology | $68.5M | 3.71% | |
Household & Personal Products Consumer Defensive | $64.6M | 3.49% |
