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
Q2 		$1.59M Buy
303,800
+284,700
+1,491% +$1.43M ﹤0.01% 5586
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

PCM
Portolan Capital Management Boston, Massachusetts $2.67B AUM 169.09% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
BA
Bard Associates Chicago, Illinois $451M AUM 66.6% 1-Year Est. Return
CHAM
Clear Harbor Asset Management Stamford, Connecticut $1.62B AUM 38.77% 1-Year Est. Return
HIM
Herald Investment Management London, United Kingdom $737M AUM 158.15% 1-Year Est. Return
GC
Gratia Capital Los Angeles, California $165M AUM 34.15% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
MIM
Meros Investment Management Dallas, Texas $315M AUM 58.44% 1-Year Est. Return
PIP
Palisades Investment Partners Santa Monica, California $352M AUM 76.79% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return

Jane Street's TGEN Position: Q2 2026 in Review

Jane Street reduced its Tecogen Inc (TGEN) stake by 58% in Q2 2026, selling an estimated $342K and leaving 49,087 shares worth $256K. The position accounts for ﹤0.01% of the portfolio, ranked #9556.

Jane Street first reported a position in TGEN in Q3 2025 and has held it in 4 quarters since. The position peaked at $1.03M in Q4 2025. 69 funds tracked by Wall St. Rank hold TGEN as of Q2 2026.

  • Jane Street held 49,087 shares of Tecogen Inc worth $256K as of Q2 2026.
  • Jane Street sold 68,255 Tecogen Inc shares in Q2 2026, an estimated $342K.
  • Tecogen Inc made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #9556 holding.
  • Jane Street first reported a position in Tecogen Inc in Q3 2025 and has held it in 4 quarters since.
  • Jane Street's Tecogen Inc position peaked at $1.03M in Q4 2025.
  • 69 funds tracked by Wall St. Rank held Tecogen Inc as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.