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About 29.07% of TGEN shares are held by financial institutions. NATIONAL BANK OF CANADA /FI/ is the top corporate investor, holding 230 shares valued at $1.14K. A 0% stake in Tecogen Inc. is owned by the company. BNP PARIBAS ARBITRAGE, SNC owns 214 shares valued at $1.06K, which translates its holding of 0% of the stake in the company.
| Date | Holder | % Stake | Shares Held | Total Value ($) | Shares | % Change in Portfolio |
|---|---|---|---|---|---|---|
| Dec 31, 2025 | NATIONAL BANK OF CANADA /FI/ | 0% | 230 | 1.14K | 0 | 0 |
| Dec 31, 2025 | BNP PARIBAS ARBITRAGE, SNC | 0% | 214 | 1.06K | 214 | +100.00% |
| Dec 31, 2025 | SBI SECURITIES CO., LTD. | 0% | 117 | 578 | 0 | 0 |
| Dec 31, 2025 | MAI CAPITAL MANAGEMENT | 0% | 64 | 317 | 0 | 0 |
| Dec 31, 2025 | LAUREL WEALTH ADVISORS LLC | 0% | 45 | 223 | 45 | +100.00% |
| Dec 31, 2025 | OMERS ADMINISTRATION CORP | 0.16% | 42K | 207.48K | 42K | +100.00% |
| Dec 31, 2025 | CITADEL ADVISORS LLC | 0.09% | 22.6K | 111.64K | -111.7K | -83.17% |
| Dec 31, 2025 | XTX TOPCO LTD | 0.21% | 54.76K | 270.53K | 54.76K | +100.00% |
| Dec 31, 2025 | HERON BAY CAPITAL MANAGEMENT | 0% | 0 | - | -37.17K | -100.00% |
| Dec 31, 2025 | HIGHTOWER ADVISORS, LLC | 0.5% | 132.67K | 655.37K | 69.6K | +110.36% |
| Dec 31, 2025 | GEODE CAPITAL MANAGEMENT, LLC | 0.68% | 177.91K | 879.45K | 11.36K | +6.82% |
| Dec 31, 2025 | NEW YORK STATE COMMON RETIREMENT FUND | 0.52% | 137.2K | 677.77K | 0 | 0 |
| Dec 31, 2025 | STATE STREET CORP | 0.26% | 69.23K | 341.98K | -500 | -0.72% |
| Dec 31, 2025 | BARD ASSOCIATES INC | 2.61% | 689.11K | 3.4M | -1.5K | -0.22% |
| Dec 31, 2025 | DIAMETRIC CAPITAL, LP | 0.2% | 53.23K | 262.94K | 22.49K | +73.15% |
| Dec 31, 2025 | BLACKROCK, INC. | 0.73% | 191.36K | 945.32K | 6.58K | +3.56% |
| Dec 31, 2025 | MARSHALL WACE, LLP | 1.09% | 286.33K | 1.41M | 237.24K | +483.28% |
| Dec 31, 2025 | GENDELL JEFFREY L | 1.12% | 295.54K | 1.46M | 51.92K | +21.31% |
| Dec 31, 2025 | PALISADES INVESTMENT PARTNERS, LLC | 1.48% | 390.21K | 1.93M | 13.62K | +3.62% |
| Dec 31, 2025 | HERALD INVESTMENT MANAGEMENT LTD | 1.59% | 420K | 2.08M | -26.08K | -5.85% |
| Dec 31, 2025 | CLEAR HARBOR ASSET MANAGEMENT, LLC | 2.31% | 610K | 3.01M | -1.6K | -0.26% |
| Dec 31, 2025 | VANGUARD GROUP INC | 3.31% | 871.84K | 4.31M | 1.4K | +0.16% |
| Dec 31, 2025 | BANK OF AMERICA CORP /DE/ | 0.04% | 10.78K | 53.27M | 5.95K | +122.99% |
| Dec 31, 2025 | LIGHTHOUSE INVESTMENT PARTNERS, LLC | 0.04% | 10.92K | 53.95M | 10.92K | +100.00% |
| Dec 31, 2025 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.05% | 12K | 59.28K | 0 | 0 |
| Dec 31, 2025 | SHIKIAR ASSET MANAGEMENT INC | 0.05% | 13.3K | 66K | -5.2K | -28.11% |
| Dec 31, 2025 | CENTIVA CAPITAL, LP | 0.07% | 18.4K | 90.9K | 0 | 0 |
| Dec 31, 2025 | PATHSTONE HOLDINGS, LLC | 0.07% | 18.73K | 92.5K | 0 | 0 |
| Dec 31, 2025 | GSA CAPITAL PARTNERS LLP | 0.07% | 19.43K | 96K | 19.43K | +100.00% |
| Dec 31, 2025 | THOMPSON DAVIS & CO., INC. | 0.46% | 120.45K | 595.02K | 2.5K | +2.12% |
| Dec 31, 2025 | UBS GROUP AG | 0.4% | 104.96K | 518.5K | 95.37K | +994.69% |
| Dec 31, 2025 | LPL FINANCIAL LLC | 0.28% | 73.79K | 364.54K | 73.79K | +100.00% |
| Dec 31, 2025 | MORGAN STANLEY | 0.27% | 69.98K | 345.69K | 47.59K | +212.61% |
| Dec 31, 2025 | JANE STREET GROUP, LLC | 0.1% | 25.9K | 127.95K | -52.8K | -67.09% |
| Dec 31, 2025 | INTEGRATED WEALTH CONCEPTS LLC | 0% | 0 | - | -216.47K | -100.00% |
| Dec 31, 2025 | EAM INVESTORS, LLC | 0% | 0 | - | -74.1K | -100.00% |
| Dec 31, 2025 | CALAMOS ADVISORS LLC | 0% | 0 | - | -12.48K | -100.00% |
| Dec 31, 2025 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.1% | 25.5K | 125.97K | 0 | 0 |
| Dec 31, 2025 | ARS INVESTMENT PARTNERS, LLC | 0% | 0 | - | -43.17K | -100.00% |
| Dec 31, 2025 | COMMONWEALTH EQUITY SERVICES, LLC | 0.04% | 11.77K | 58.16K | 11.77K | +100.00% |
| Dec 31, 2025 | HIDDEN COVE WEALTH MANAGEMENT, LLC | 0.08% | 21.09K | 104.17K | 7.05K | +50.17% |
| Dec 31, 2025 | MILLENNIUM MANAGEMENT LLC | 0.09% | 22.51K | 111.19K | -25.74K | -53.35% |
| Dec 31, 2025 | ROYAL BANK OF CANADA | 0.32% | 85.55K | 423K | -36.84K | -30.10% |
| Dec 31, 2025 | RAYMOND JAMES FINANCIAL INC | 0.38% | 99.75K | 492.79K | -58.13K | -36.82% |
| Dec 31, 2025 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.42% | 109.8K | 542.41K | 59.4K | +117.86% |
| Dec 31, 2025 | TWO SIGMA INVESTMENTS, LP | 0.83% | 218.63K | 1.08M | -28.08K | -11.38% |
| Dec 31, 2025 | QUANTBOT TECHNOLOGIES LP | 0.09% | 22.82K | 112.73K | 22.82K | +100.00% |
| Dec 31, 2025 | PORTOLAN CAPITAL MANAGEMENT, LLC | 1.69% | 445.81K | 2.2M | -150K | -25.18% |
| Dec 31, 2025 | AROSA CAPITAL MANAGEMENT LP | 1.33% | 350K | 1.73M | 62.5K | +21.74% |
| Dec 31, 2025 | GRANAHAN INVESTMENT MANAGEMENT, LLC | 0.67% | 177.82K | 878.44K | 65.48K | +58.29% |
| Dec 31, 2025 | CAPTION MANAGEMENT, LLC | 0.57% | 150K | 741K | 150K | +100.00% |
| Dec 31, 2025 | POINT72 ASSET MANAGEMENT, L.P. | 0.32% | 83.91K | 414.5K | 83.91K | +100.00% |
| Dec 31, 2025 | GOLDMAN SACHS GROUP INC | 0.26% | 67.72K | 334.56K | -65.04K | -48.99% |
| Dec 31, 2025 | PFG INVESTMENTS, LLC | 0.24% | 62.52K | 308.86K | 0 | 0 |
| Dec 31, 2025 | MANGROVE PARTNERS | 0.23% | 61.21K | 302.36K | 61.21K | +100.00% |
| Dec 31, 2025 | GROUP ONE TRADING, L.P. | 0.21% | 56.58K | 279.5K | 22.63K | +66.64% |
| Dec 31, 2025 | CORSAIR CAPITAL MANAGEMENT, L.P. | 0.21% | 55.02K | 271.78K | 17 | +0.03% |
| Dec 31, 2025 | RENAISSANCE TECHNOLOGIES LLC | 0.21% | 54.3K | 268.24K | -47.9K | -46.87% |
| Dec 31, 2025 | SIMPLEX TRADING, LLC | 0.18% | 46.53K | 229.86K | 14.97K | +47.43% |
| Dec 31, 2025 | IMC-CHICAGO, LLC | 0.16% | 42.96K | 212.2K | 42.96K | +100.00% |
| Dec 31, 2025 | HARBOR CAPITAL ADVISORS, INC. | 0.15% | 40.45K | 200K | 12.97K | +47.18% |
| Dec 31, 2025 | GAMCO INVESTORS, INC. ET AL | 0.15% | 40K | 197.6K | 0 | 0 |
| Dec 31, 2025 | NORTHERN TRUST CORP | 0.14% | 37.68K | 186.14K | 11.94K | +46.41% |
| Dec 31, 2025 | J.W. COLE ADVISORS, INC. | 0.1% | 26.3K | 129.92K | -5.1K | -16.24% |
| Dec 31, 2025 | CITIGROUP INC | 0.03% | 8.54K | 42.16K | 8.54K | +100.00% |
| Dec 31, 2025 | EVERSOURCE WEALTH ADVISORS, LLC | 0% | 1K | 4.94K | -1K | -50.00% |
| Dec 31, 2025 | CAITONG INTERNATIONAL ASSET MANAGEMENT CO., LTD | 0% | 782 | 3.86K | 782 | +100.00% |
| Dec 31, 2025 | FEDERATION DES CAISSES DESJARDINS DU QUEBEC | 0% | 562 | 2.78K | 562 | +100.00% |
| Dec 31, 2025 | STATE OF WYOMING | 0% | 538 | 2.66K | 448 | +497.78% |
| Dec 31, 2025 | JPMORGAN CHASE & CO | 0% | 450 | 2.22K | 0 | 0 |
| Sep 30, 2025 | MANATUCK HILL PARTNERS, LLC | 0.2% | 50K | 440.5K | 50K | +100.00% |
| Sep 30, 2025 | CITADEL ADVISORS LLC | 0.44% | 110.3K | 971.74K | 110.3K | +100.00% |
| Sep 30, 2025 | EAM INVESTORS, LLC | 0.29% | 74.1K | 652.83K | 74.1K | +100.00% |
| Sep 30, 2025 | STATE STREET CORP | 0.28% | 69.73K | 614.29K | 28.33K | +68.42% |
| Sep 30, 2025 | WOLVERINE TRADING, LLC | 0.25% | 63.1K | 518.05K | 63.1K | +100.00% |
| Sep 30, 2025 | HIGHTOWER ADVISORS, LLC | 0.25% | 63.07K | 555.62K | -500 | -0.79% |
| Sep 30, 2025 | EVERNEST FINANCIAL ADVISORS, LLC | 0.14% | 34.15K | 300.86K | 34.15K | +100.00% |
| Sep 30, 2025 | GROUP ONE TRADING, L.P. | 0.13% | 33.95K | 299.12K | 33.95K | +100.00% |
| Sep 30, 2025 | SIMPLEX TRADING, LLC | 0.13% | 31.56K | 278K | 31.56K | +100.00% |
| Sep 30, 2025 | HARBOR CAPITAL ADVISORS, INC. | 0.11% | 27.48K | 242K | 27.48K | +100.00% |
| Sep 30, 2025 | JANE STREET GROUP, LLC | 0.2% | 50K | 440.5K | 50K | +100.00% |
| Sep 30, 2025 | PFG INVESTMENTS, LLC | 0.25% | 62.52K | 550.83K | 0 | 0 |
| Sep 30, 2025 | TWO SIGMA ADVISERS, LP | 0.14% | 36.2K | 318.92K | 36.2K | +100.00% |
| Sep 30, 2025 | CORSAIR CAPITAL MANAGEMENT, L.P. | 0.22% | 55K | 484.55K | -12.76K | -18.83% |
| Sep 30, 2025 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.1% | 25.5K | 224.66K | 25.5K | +100.00% |
| Sep 30, 2025 | MORGAN STANLEY | 0.09% | 22.39K | 197.21K | 21.79K | +3,630.83% |
| Sep 30, 2025 | VIRTU FINANCIAL LLC | 0.08% | 20.04K | 177K | 20.04K | +100.00% |
| Sep 30, 2025 | PATHSTONE HOLDINGS, LLC | 0.07% | 18.73K | 164.97K | 0 | 0 |
| Sep 30, 2025 | SHIKIAR ASSET MANAGEMENT INC | 0.07% | 18.5K | 163K | -3.5K | -15.91% |
| Sep 30, 2025 | CENTIVA CAPITAL, LP | 0.07% | 18.4K | 162.1K | 18.4K | +100.00% |
| Sep 30, 2025 | GOLDMAN SACHS GROUP INC | 0.53% | 132.76K | 1.17M | 132.76K | +100.00% |
| Sep 30, 2025 | ROYAL BANK OF CANADA | 0.48% | 122.39K | 1.08M | 63.89K | +109.21% |
| Sep 30, 2025 | THOMPSON DAVIS & CO., INC. | 0.47% | 117.95K | 1.04M | 117.95K | +100.00% |
| Sep 30, 2025 | GRANAHAN INVESTMENT MANAGEMENT, LLC | 0.44% | 112.34K | 989.7K | 112.34K | +100.00% |
| Sep 30, 2025 | RENAISSANCE TECHNOLOGIES LLC | 0.4% | 102.2K | 900.38K | 102.2K | +100.00% |
| Sep 30, 2025 | BLACKROCK, INC. | 0.73% | 184.78K | 1.63M | 0 | 0 |
| Sep 30, 2025 | GEODE CAPITAL MANAGEMENT, LLC | 0.66% | 166.56K | 1.47M | 23.71K | +16.60% |
| Sep 30, 2025 | RAYMOND JAMES FINANCIAL INC | 0.63% | 157.89K | 1.39M | 157.89K | +100.00% |
| Sep 30, 2025 | APIS CAPITAL ADVISORS, LLC | 0.61% | 153K | 1.35M | 153K | +100.00% |
| Sep 30, 2025 | NEW YORK STATE COMMON RETIREMENT FUND | 0.54% | 137.2K | 1.21M | 137.2K | +100.00% |
| Sep 30, 2025 | MARSHALL WACE, LLP | 0.19% | 49.09K | 432.47K | 49.09K | +100.00% |
| Sep 30, 2025 | MILLENNIUM MANAGEMENT LLC | 0.19% | 48.25K | 425.04K | 48.25K | +100.00% |
| Sep 30, 2025 | ARS INVESTMENT PARTNERS, LLC | 0.17% | 43.17K | 380.35K | 43.17K | +100.00% |
| Sep 30, 2025 | GAMCO INVESTORS, INC. ET AL | 0.16% | 40K | 352.4K | -2K | -4.76% |
| Sep 30, 2025 | HERON BAY CAPITAL MANAGEMENT | 0.15% | 37.17K | 327.44K | 0 | 0 |
| Sep 30, 2025 | NORTHERN TRUST CORP | 0.1% | 25.74K | 226.74K | 0 | 0 |
| Sep 30, 2025 | RUSSELL INVESTMENTS GROUP, LTD. | 0.38% | 94.7K | 834.27K | 94.7K | +100.00% |
| Sep 30, 2025 | GORDIAN CAPITAL SINGAPORE PTE LTD | 0.06% | 14.7K | 129.51K | -389 | -2.58% |
| Sep 30, 2025 | HIDDEN COVE WEALTH MANAGEMENT, LLC | 0.06% | 14.04K | 123.71K | 14.04K | +100.00% |
| Sep 30, 2025 | CALAMOS ADVISORS LLC | 0.05% | 12.48K | 109.94K | 12.48K | +100.00% |
| Sep 30, 2025 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.05% | 12K | 105.72K | 12K | +100.00% |
| Sep 30, 2025 | UBS GROUP AG | 0.04% | 9.59K | 84.47K | 9.59K | +319,500.00% |
| Sep 30, 2025 | CORECAP ADVISORS, LLC | 0.02% | 4.94K | 43.56K | 4.94K | +100.00% |
| Sep 30, 2025 | EVERSOURCE WEALTH ADVISORS, LLC | 0.01% | 2K | 17.62K | 2K | +100.00% |
| Sep 30, 2025 | ALTSHULER SHAHAM LTD | 0.01% | 1.5K | 13.22K | 1.5K | +100.00% |
| Sep 30, 2025 | JPMORGAN CHASE & CO | 0% | 450 | 3.97K | 0 | 0 |
| Sep 30, 2025 | SBI SECURITIES CO., LTD. | 0% | 117 | 1.03K | 0 | 0 |
| Sep 30, 2025 | STATE OF WYOMING | 0% | 90 | 793 | 90 | +100.00% |
| Sep 30, 2025 | MAI CAPITAL MANAGEMENT | 0% | 64 | 564 | 0 | 0 |
| Sep 30, 2025 | ORG PARTNERS LLC | 0% | 50 | 440 | 50 | +100.00% |
| Sep 30, 2025 | GLOBAL RETIREMENT PARTNERS, LLC | 0% | 0 | - | -5.15K | -100.00% |
| Sep 30, 2025 | J.W. COLE ADVISORS, INC. | 0.12% | 31.4K | 276.63K | 31.4K | +100.00% |
| Sep 30, 2025 | DIAMETRIC CAPITAL, LP | 0.12% | 30.74K | 270.83K | 30.74K | +100.00% |
| Sep 30, 2025 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.2% | 50.4K | 444.02K | 50.4K | +100.00% |
| Sep 30, 2025 | VANGUARD GROUP INC | 3.45% | 870.44K | 7.67M | 44.8K | +5.43% |
| Sep 30, 2025 | BARD ASSOCIATES INC | 2.74% | 690.61K | 6.08M | 67.03K | +10.75% |
| Sep 30, 2025 | CLEAR HARBOR ASSET MANAGEMENT, LLC | 2.42% | 611.6K | 5.39M | 1.6K | +0.26% |
| Sep 30, 2025 | PORTOLAN CAPITAL MANAGEMENT, LLC | 2.36% | 595.81K | 5.25M | 130.24K | +27.97% |
| Sep 30, 2025 | HERALD INVESTMENT MANAGEMENT LTD | 1.77% | 446.08K | 3.9M | 446.08K | +100.00% |
| Sep 30, 2025 | PALISADES INVESTMENT PARTNERS, LLC | 1.49% | 376.59K | 3.32M | 376.59K | +100.00% |
| Sep 30, 2025 | AROSA CAPITAL MANAGEMENT LP | 1.14% | 287.5K | 2.53M | 287.5K | +100.00% |
| Sep 30, 2025 | TWO SIGMA INVESTMENTS, LP | 0.98% | 246.71K | 2.17M | 246.71K | +100.00% |
| Sep 30, 2025 | GENDELL JEFFREY L | 0.96% | 243.62K | 2.15M | 201.92K | +484.23% |
| Sep 30, 2025 | INTEGRATED WEALTH CONCEPTS LLC | 0.86% | 216.47K | 1.91M | 39.22K | +22.12% |
| Jun 30, 2025 | LAZARD ASSET MANAGEMENT LLC | 0.01% | 1.33K | 9K | 1.33K | +100.00% |
| Jun 30, 2025 | SBI SECURITIES CO., LTD. | 0% | 117 | 796 | 117 | +100.00% |
| Jun 30, 2025 | ADVISORY SERVICES NETWORK, LLC | 0.04% | 10K | 96.8K | 10K | +100.00% |
| Jun 30, 2025 | GORDIAN CAPITAL SINGAPORE PTE LTD | 0.06% | 15.09K | 193.39K | 15.09K | +100.00% |
| Jun 30, 2025 | PATHSTONE HOLDINGS, LLC | 0.07% | 18.73K | 127.33K | 18.73K | +100.00% |
| Jun 30, 2025 | SHIKIAR ASSET MANAGEMENT INC | 0.09% | 22K | 150K | 9.5K | +76.00% |
| Jun 30, 2025 | NORTHERN TRUST CORP | 0.1% | 25.74K | 175.01K | 25.74K | +100.00% |
| Jun 30, 2025 | HERON BAY CAPITAL MANAGEMENT | 0.15% | 37.17K | 252.74K | 37.17K | +100.00% |
| Jun 30, 2025 | 0% | 117 | 796 | 117 | +100.00% | |
| Jun 30, 2025 | STATE STREET CORP | 0.16% | 41.4K | 281.52K | 41.4K | +100.00% |
| Jun 30, 2025 | GENDELL JEFFREY L | 0.17% | 41.7K | 283.56K | 41.7K | +100.00% |
| Jun 30, 2025 | GAMCO INVESTORS, INC. ET AL | 0.17% | 42K | 285.6K | 42K | +100.00% |
| Jun 30, 2025 | ROYAL BANK OF CANADA | 0.23% | 58.5K | 398K | 58.5K | +100.00% |
| Jun 30, 2025 | PFG INVESTMENTS, LLC | 0.25% | 62.52K | 425.16K | 62.52K | +100.00% |
| Jun 30, 2025 | HIGHTOWER ADVISORS, LLC | 0.25% | 63.57K | 432.26K | 63.57K | +100.00% |
| Jun 30, 2025 | CORSAIR CAPITAL MANAGEMENT, L.P. | 0.27% | 67.76K | 460.77K | 67.76K | +100.00% |
| Jun 30, 2025 | GEODE CAPITAL MANAGEMENT, LLC | 0.57% | 142.85K | 971.38K | 142.85K | +100.00% |
| Jun 30, 2025 | INTEGRATED WEALTH CONCEPTS LLC | 0.7% | 177.25K | 1.21M | 177.25K | +100.00% |
| Jun 30, 2025 | BLACKROCK, INC. | 0.73% | 184.78K | 1.26M | 184.78K | +100.00% |
| Jun 30, 2025 | PORTOLAN CAPITAL MANAGEMENT, LLC | 1.84% | 465.57K | 3.17M | 465.57K | +100.00% |
| Jun 30, 2025 | CLEAR HARBOR ASSET MANAGEMENT, LLC | 2.42% | 610K | 4.15M | 610K | +100.00% |
| Jun 30, 2025 | MORGAN STANLEY | 0% | 600 | 4.08M | 600 | +100.00% |
| Jun 30, 2025 | BARD ASSOCIATES INC | 2.47% | 623.58K | 4.24M | 623.58K | +100.00% |
| Jun 30, 2025 | VANGUARD GROUP INC | 3.27% | 825.64K | 5.61M | 825.64K | +100.00% |
| Jun 30, 2025 | TOWER RESEARCH CAPITAL LLC (TRC) | 0% | 496 | 3.37K | 496 | +100.00% |
| Jun 30, 2025 | BANK OF AMERICA CORP /DE/ | 0% | 116 | 789 | 116 | +100.00% |
| Jun 30, 2025 | GLOBAL RETIREMENT PARTNERS, LLC | 0.02% | 5.15K | 34.99K | 5.15K | +100.00% |
| Jun 30, 2025 | UBS GROUP AG | 0% | 3 | 22 | 3 | +100.00% |
| Jun 30, 2025 | MAI CAPITAL MANAGEMENT | 0% | 64 | 436 | 64 | +100.00% |
| Jun 30, 2025 | JPMORGAN CHASE & CO | 0% | 450 | 3.06K | 450 | +100.00% |
| Mar 31, 2025 | SHIKIAR ASSET MANAGEMENT INC | 0.05% | 12.5K | 28K | 12.5K | +100.00% |
| Dec 31, 2023 | HERALD INVESTMENT MANAGEMENT LTD | 1.29% | 321.08K | 260.07K | 0 | 0 |
| Sep 30, 2023 | HERALD INVESTMENT MANAGEMENT LTD | 1.29% | 321.08K | 272.92K | 0 | 0 |
Among the TGEN insiders holding of 38.93% of the stake in company, HATSOPOULOS JOHN, director, holds the largest shares of 988.95K. LEWIS EARL R, director, is the second largest TGEN insider with ownership of 737K shares. HIRSCH SUSAN B, director, stands third with possession of 250.42K shares of that stake.
| Insiders | Designation | Shares Held |
|---|---|---|
| HATSOPOULOS JOHN | director | 988.95K |
| LEWIS EARL R | director | 737K |
| HIRSCH SUSAN B | director | 250.42K |
| MAXWELL CHARLEST | director | 107.27K |
| PANORA ROBERT A | COO and President | 62.52K |
| RANGESH ABINAND | Chief Executive Officer | 10.3K |
| BENJAMIN LOCKE M. | CEO | 5.42K |
| LAFAILLE STEPHEN | VP of Business Development | 400 |
| Date | Insider | Type | Cost | Shares | Value ($) | Shares Total |
|---|---|---|---|---|---|---|
| Jun 24, 2025 | PANORA ROBERT A | SALE | 6.86 | 900 | 6.17K | 62.52K |
| Jun 23, 2025 | LAFAILLE STEPHEN | SALE | 7.25 | 10K | 72.5K | 400 |
| Jun 23, 2025 | PANORA ROBERT A | SALE | 6.36 | 31.8K | 202.25K | 63.42K |
| Jun 18, 2025 | PANORA ROBERT A | SALE | 5.03 | 13K | 65.39K | 95.22K |
| Jun 06, 2025 | LAFAILLE STEPHEN | SALE | 5.98 | 25K | 149.5K | 400 |
| Jun 04, 2025 | LAFAILLE STEPHEN | SALE | 5.00 | 15K | 75K | 400 |
| Jun 04, 2025 | PANORA ROBERT A | SALE | 5.00 | 31K | 155K | 13K |
| Jun 03, 2025 | PANORA ROBERT A | SALE | 4.69 | 26K | 121.94K | 44K |
| Jun 03, 2025 | LAFAILLE STEPHEN | SALE | 4.88 | 10K | 48.8K | 400 |
| Mar 03, 2025 | LAFAILLE STEPHEN | PURCHASE | 2.50 | 400 | 1K | 400 |
| Nov 22, 2024 | LEWIS EARL R | PURCHASE | 0.71 | 100K | 71K | 737K |
| Sep 27, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.84 | 10K | 8.38K | 988.95K |
| Sep 25, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.86 | 10K | 8.6K | 978.95K |
| Aug 19, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.90 | 10K | 8.95K | 968.95K |
| Jul 15, 2024 | LEWIS EARL R | PURCHASE | 0.68 | 10K | 6.8K | 625K |
| Jul 10, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.65 | 22.47K | 14.6K | 958.95K |
| May 29, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.80 | 10K | 8K | 935.22K |
| May 28, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.80 | 1.27K | 1.01K | 936.49K |
| May 24, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.80 | 8.74K | 6.99K | 925.22K |
| May 22, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.79 | 3.2K | 2.53K | 916.49K |
| May 21, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.79 | 13.8K | 10.9K | 913.29K |
| May 16, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.75 | 3K | 2.25K | 899.49K |
| May 15, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.74 | 10K | 7.4K | 896.49K |
| May 01, 2024 | LEWIS EARL R | PURCHASE | 0.75 | 5K | 3.75K | 615K |
| Apr 24, 2024 | LEWIS EARL R | PURCHASE | 0.68 | 10K | 6.8K | 610K |
| Apr 24, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.67 | 5K | 3.35K | 886.49K |
| Apr 23, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.69 | 5K | 3.43K | 880.49K |
| Apr 16, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.68 | 1K | 679 | 875.49K |
| Apr 15, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.70 | 1K | 700 | 874.49K |
| Apr 12, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.70 | 1K | 699.7 | 873.49K |
| Apr 11, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.70 | 1K | 700 | 872.49K |
| Apr 09, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.70 | 1K | 700 | 871.49K |
| Apr 08, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.70 | 1K | 700 | 870.49K |
| Apr 01, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.70 | 612 | 428.4 | 864.49K |
| Mar 28, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.70 | 2.39K | 1.67K | 863.87K |
| Mar 27, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.70 | 2K | 1.4K | 861.49K |
| Jan 24, 2024 | LEWIS EARL R | PURCHASE | 0.78 | 9.15K | 7.14K | 560.84K |
| Jan 23, 2024 | LEWIS EARL R | PURCHASE | 0.68 | 10K | 6.8K | 551.68K |
| Jan 22, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.77 | 10K | 7.7K | 859.49K |
| Jan 18, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.73 | 10K | 7.35K | 849.49K |
| Jan 16, 2024 | HATSOPOULOS JOHN | PURCHASE | 0.73 | 100K | 73.46K | 839.49K |
| Dec 27, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.80 | 25K | 20K | 739.49K |
| Dec 22, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.80 | 25K | 20K | 714.49K |
| Dec 14, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.82 | 1K | 825 | 640.49K |
| Nov 20, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.84 | 4K | 3.38K | 639.49K |
| Nov 17, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.84 | 46K | 38.87K | 635.49K |
| Nov 14, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.84 | 100 | 84.5 | 589.49K |
| Oct 19, 2023 | HIRSCH SUSAN B | PURCHASE | 0.92 | 5K | 4.58K | 250.42K |
| Oct 18, 2023 | LEWIS EARL R | PURCHASE | 0.91 | 25K | 22.75K | 541.68K |
| Oct 17, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.80 | 50K | 40K | 589.39K |
| Oct 12, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.80 | 50K | 40K | 539.39K |
| Oct 09, 2023 | LEWIS EARL R | PURCHASE | 0.80 | 2K | 1.6K | 627K |
| Sep 29, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.98 | 2K | 1.96K | 489.39K |
| Sep 27, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.91 | 1.38K | 1.26K | 487.39K |
| Sep 26, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.92 | 2K | 1.84K | 486.01K |
| Sep 19, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.91 | 5K | 4.55K | 484.01K |
| Sep 08, 2023 | LEWIS EARL R | PURCHASE | 0.95 | 10K | 9.5K | 514.68K |
| Sep 07, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.00 | 200 | 200 | 479.01K |
| Sep 05, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.97 | 10K | 9.7K | 478.81K |
| Sep 05, 2023 | LEWIS EARL R | PURCHASE | 1.00 | 10K | 10K | 504.68K |
| Aug 30, 2023 | RANGESH ABINAND | PURCHASE | 1.02 | 800 | 816 | 10.3K |
| Aug 23, 2023 | RANGESH ABINAND | PURCHASE | 1.02 | 200 | 204 | 9.5K |
| Aug 22, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.12 | 5K | 5.6K | 468.81K |
| Aug 17, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.04 | 4.67K | 4.86K | 463.81K |
| Aug 15, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.00 | 5K | 5K | 459.13K |
| Aug 15, 2023 | RANGESH ABINAND | PURCHASE | 0.95 | 1 | 0.95 | 9.3K |
| Aug 14, 2023 | LEWIS EARL R | PURCHASE | 1.00 | 1.5K | 1.5K | 494.68K |
| Jun 26, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.96 | 1K | 960 | 454.13K |
| Jun 20, 2023 | RANGESH ABINAND | PURCHASE | 1.04 | 1.5K | 1.56K | 9.3K |
| Jun 20, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.00 | 3K | 3K | 453.13K |
| Jun 15, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.11 | 5K | 5.55K | 450.13K |
| Jun 12, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.12 | 5K | 5.6K | 445.13K |
| Jun 08, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.09 | 500 | 546.25 | 440.13K |
| Jun 07, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.00 | 7K | 6.99K | 436.63K |
| Jun 06, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.14 | 1K | 1.14K | 422.63K |
| Jun 02, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.09 | 1K | 1.09K | 421.63K |
| May 26, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.17 | 1K | 1.17K | 420.63K |
| May 25, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.17 | 1K | 1.17K | 419.63K |
| May 23, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.17 | 1K | 1.17K | 418.63K |
| May 15, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.00 | 3.65K | 3.65K | 417.63K |
| May 15, 2023 | LEWIS EARL R | PURCHASE | 0.96 | 10K | 9.6K | 493.18K |
| Mar 29, 2023 | LEWIS EARL R | PURCHASE | 1.17 | 10K | 11.7K | 473.18K |
| Mar 28, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.00 | 17.7K | 17.7K | 413.98K |
| Mar 28, 2023 | LEWIS EARL R | PURCHASE | 1.03 | 2.1K | 2.16K | 459.28K |
| Mar 27, 2023 | LEWIS EARL R | PURCHASE | 0.98 | 806 | 793.51 | 457.18K |
| Mar 27, 2023 | HATSOPOULOS JOHN | PURCHASE | 1.00 | 11.42K | 11.39K | 396.28K |
| Mar 24, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.92 | 50K | 46K | 384.86K |
| Mar 24, 2023 | LEWIS EARL R | PURCHASE | 0.92 | 5.5K | 5.06K | 453.68K |
| Mar 22, 2023 | LEWIS EARL R | PURCHASE | 0.87 | 5K | 4.35K | 448.18K |
| Mar 21, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.88 | 10K | 8.8K | 334.86K |
| Mar 20, 2023 | RANGESH ABINAND | PURCHASE | 0.85 | 800 | 676.16 | 6.8K |
| Mar 20, 2023 | HATSOPOULOS JOHN | PURCHASE | 0.84 | 10K | 8.4K | 324.86K |
| Mar 20, 2023 | LEWIS EARL R | PURCHASE | 0.90 | 10K | 9K | 438.18K |
| Oct 19, 2022 | HATSOPOULOS JOHN | PURCHASE | 1.00 | 5K | 5K | 314.86K |
| Oct 17, 2022 | HATSOPOULOS JOHN | PURCHASE | 0.98 | 5K | 4.9K | 309.86K |
| Oct 11, 2022 | HATSOPOULOS JOHN | PURCHASE | 0.96 | 5K | 4.8K | 304.86K |
| Oct 10, 2022 | HATSOPOULOS JOHN | PURCHASE | 0.96 | 5K | 4.8K | 299.86K |
| Sep 29, 2022 | LEWIS EARL R | PURCHASE | 0.97 | 5K | 4.85K | 428.18K |
| Sep 28, 2022 | LEWIS EARL R | PURCHASE | 0.95 | 8.18K | 7.77K | 423.18K |
| Sep 08, 2022 | HATSOPOULOS JOHN | PURCHASE | 1.17 | 5K | 5.83K | 294.86K |
| Sep 02, 2022 | HATSOPOULOS JOHN | PURCHASE | 1.10 | 5K | 5.5K | 289.86K |
| Aug 31, 2022 | HATSOPOULOS JOHN | PURCHASE | 1.10 | 5K | 5.5K | 284.86K |
| Aug 29, 2022 | HATSOPOULOS JOHN | PURCHASE | 1.23 | 5K | 6.17K | 269.86K |
| Aug 26, 2022 | HATSOPOULOS JOHN | PURCHASE | 1.14 | 5K | 5.7K | 274.86K |
| Aug 24, 2022 | HATSOPOULOS JOHN | PURCHASE | 1.23 | 2.7K | 3.31K | 252.56K |
| Aug 23, 2022 | HATSOPOULOS JOHN | PURCHASE | 1.25 | 5K | 6.25K | 249.86K |
| Aug 22, 2022 | HATSOPOULOS JOHN | PURCHASE | 1.21 | 5K | 6.05K | 244.86K |
| Aug 17, 2021 | LEWIS EARL R | PURCHASE | 1.94 | 5K | 9.7K | 265K |
| Jun 08, 2020 | LEWIS EARL R | PURCHASE | 0.82 | 11.71K | 9.6K | 111.71K |
| Jun 04, 2020 | LEWIS EARL R | PURCHASE | 0.70 | 1K | 699.8 | 1K |
| Apr 23, 2020 | HATSOPOULOS JOHN | PURCHASE | 1.02 | 5K | 5.09K | 2.33M |
| Apr 21, 2020 | BENJAMIN LOCKE M. | PURCHASE | 1.02 | 2K | 2.04K | 5.42K |
| Nov 14, 2017 | BENJAMIN LOCKE M. | PURCHASE | 2.64 | 2K | 5.28K | 3.42K |
| Jan 06, 2017 | MAXWELL CHARLEST | PURCHASE | 4.00 | 2.5K | 10K | 107.27K |
| Jan 04, 2017 | MAXWELL CHARLEST | PURCHASE | 3.84 | 1K | 3.84K | 104.77K |