Jane Street
TGEN

Jane Street’s Tecogen Inc TGEN Stock Holding History

Jane Street’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 		$48.9K Sell
19,100
-65,400
-77% -$240K ﹤0.01% 10979
2025
Q4 		$417K Buy
84,500
+34,500
+69% +$259K ﹤0.01% 8105
2025
Q3 		$441K Buy
+50,000
New +$401K ﹤0.01% 8128

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

Jane Street's TGEN Position: Q1 2026 in Review

Jane Street reduced its Tecogen Inc (TGEN) stake by 43% in Q1 2026, selling an estimated $332K and leaving 117,342 shares worth $300K. The position accounts for ﹤0.01% of the portfolio, ranked #9237.

Jane Street first reported a position in TGEN in Q3 2025 and has held it in 3 quarters since. The position peaked at $1.03M in Q4 2025. 62 funds tracked by Wall St. Rank hold TGEN as of Q1 2026.

  • Jane Street held 117,342 shares of Tecogen Inc worth $300K as of Q1 2026.
  • Jane Street sold 90,265 Tecogen Inc shares in Q1 2026, an estimated $332K.
  • Tecogen Inc made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #9237 holding.
  • Jane Street first reported a position in Tecogen Inc in Q3 2025 and has held it in 3 quarters since.
  • Jane Street's Tecogen Inc position peaked at $1.03M in Q4 2025.
  • 62 funds tracked by Wall St. Rank held Tecogen Inc as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.