Renaissance Technologies’s Tecogen Inc TGEN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
Sell
-272,300
Closed -$697K 3739
2026
Q1
$697K Buy
272,300
+218,000
+401% +$801K ﹤0.01% 2445
2025
Q4
$268K Sell
54,300
-47,900
-47% -$360K ﹤0.01% 2801
2025
Q3
$900K Buy
+102,200
New +$819K ﹤0.01% 2538

Other funds holding TGEN

Renaissance Technologies's TGEN Position: Q2 2026 in Review

Renaissance Technologies sold out of Tecogen Inc (TGEN) in Q2 2026, closing a stake of 272,300 shares — an estimated $697K sold.

Renaissance Technologies first reported a position in TGEN in Q3 2025 and held it in 3 quarters. The position peaked at $900K in Q3 2025. 69 funds tracked by Wall St. Rank hold TGEN as of Q2 2026.

  • Renaissance Technologies reported no remaining Tecogen Inc position as of Q2 2026 after selling out during the quarter.
  • Renaissance Technologies sold 272,300 Tecogen Inc shares in Q2 2026, an estimated $697K.
  • Renaissance Technologies first reported a position in Tecogen Inc in Q3 2025 and held it in 3 quarters.
  • Renaissance Technologies's Tecogen Inc position peaked at $900K in Q3 2025.
  • 69 funds tracked by Wall St. Rank held Tecogen Inc as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.