Group One Trading
TGEN

Group One Trading’s Tecogen Inc TGEN Stock Holding History

Group One Trading’s Portfolio TGEN Stock Details TGEN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$22.5K Sell
8,800
-34,700
-80% -$127K ﹤0.01% 5879
2025
Q4 		$215K Sell
43,500
-53,000
-55% -$398K ﹤0.01% 4307
2025
Q3 		$850K Buy
+96,500
New +$774K ﹤0.01% 3194

Other funds holding TGEN

VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
BA
Bard Associates Chicago, Illinois $398M AUM 54.32% 1-Year Est. Return
CHAM
Clear Harbor Asset Management Stamford, Connecticut $1.45B AUM 23.7% 1-Year Est. Return
PCM
Portolan Capital Management Boston, Massachusetts $1.88B AUM 115.74% 1-Year Est. Return
HIM
Herald Investment Management London, United Kingdom $718M AUM 91.16% 1-Year Est. Return
ACM
Arosa Capital Management Miami Beach, Florida $660M AUM 210.26% 1-Year Est. Return
PIP
Palisades Investment Partners Santa Monica, California $255M AUM 50.52% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
MIM
Meros Investment Management Dallas, Texas $231M AUM 35.94% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Group One Trading's TGEN Position: Q1 2026 in Review

Group One Trading increased its Tecogen Inc (TGEN) stake by 48% in Q1 2026, buying an estimated $100K and bringing the position to 83,922 shares worth $215K. The position accounts for ﹤0.01% of the portfolio, ranked #4053.

Group One Trading first reported a position in TGEN in Q3 2025 and has held it in 3 quarters since. The position peaked at $299K in Q3 2025. 62 funds tracked by Wall St. Rank hold TGEN as of Q1 2026.

  • Group One Trading held 83,922 shares of Tecogen Inc worth $215K as of Q1 2026.
  • Group One Trading bought 27,344 Tecogen Inc shares in Q1 2026, an estimated $100K.
  • Tecogen Inc made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #4053 holding.
  • Group One Trading first reported a position in Tecogen Inc in Q3 2025 and has held it in 3 quarters since.
  • Group One Trading's Tecogen Inc position peaked at $299K in Q3 2025.
  • 62 funds tracked by Wall St. Rank held Tecogen Inc as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.