BlackRock
TGEN

BlackRock’s Tecogen Inc TGEN Stock Holding History

BlackRock’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 		$473K Sell
184,779
-6,581
-3% -$24.2K ﹤0.01% 4540
2025
Q4 		$945K Buy
191,360
+6,581
+4% +$49.4K ﹤0.01% 4319
2025
Q3 		$1.63M Hold
184,779
– – ﹤0.01% 4156
2025
Q2 		$1.26M Buy
+184,779
New +$960K ﹤0.01% 4182
2020
Q2 		– Sell
-53,807
Closed -$50K – 5162
2020
Q1 		$50K Sell
53,807
-1,752
-3% -$3.27K ﹤0.01% 4471
2019
Q4 		$118K Sell
55,559
-387
-0.7% -$923 ﹤0.01% 4418
2019
Q3 		$134K Sell
55,946
-2,425
-4% -$7.25K ﹤0.01% 4389
2019
Q2 		$219K Buy
58,371
+7,222
+14% +$26.7K ﹤0.01% 4348
2019
Q1 		$204K Sell
51,149
-4,318
-8% -$16.6K ﹤0.01% 4236
2018
Q4 		$201K Buy
55,467
+30
+0.1% +$106 ﹤0.01% 4233
2018
Q3 		$174K Buy
55,437
+2,218
+4% +$7.3K ﹤0.01% 4349
2018
Q2 		$198K Buy
53,219
+9,142
+21% +$31.5K ﹤0.01% 4305
2018
Q1 		$126K Sell
44,077
-2,063
-4% -$5.02K ﹤0.01% 4297
2017
Q4 		$124K Buy
46,140
+2,566
+6% +$7.13K ﹤0.01% 4306
2017
Q3 		$139K Sell
43,574
-1,790
-4% -$5.81K ﹤0.01% 4311
2017
Q2 		$151K Buy
45,364
+15,361
+51% +$55.1K ﹤0.01% 4322
2017
Q1 		$113K Buy
+30,003
New +$118K ﹤0.01% 4309

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

BlackRock's TGEN Position: Q1 2026 in Review

BlackRock reduced its Tecogen Inc (TGEN) stake by 3.4% in Q1 2026, selling an estimated $24.2K and leaving 184,779 shares worth $473K. The position accounts for ﹤0.01% of the portfolio, ranked #4540.

BlackRock first reported a position in TGEN in Q1 2017 and has held it in 17 quarters since. The position peaked at $1.63M in Q3 2025. 62 funds tracked by Wall St. Rank hold TGEN as of Q1 2026.

  • BlackRock held 184,779 shares of Tecogen Inc worth $473K as of Q1 2026.
  • BlackRock sold 6,581 Tecogen Inc shares in Q1 2026, an estimated $24.2K.
  • Tecogen Inc made up ﹤0.01% of BlackRock's portfolio in Q1 2026, its #4540 holding.
  • BlackRock first reported a position in Tecogen Inc in Q1 2017 and has held it in 17 quarters since.
  • BlackRock's Tecogen Inc position peaked at $1.63M in Q3 2025.
  • 62 funds tracked by Wall St. Rank held Tecogen Inc as of Q1 2026.

Based on BlackRock's 13F filing for Q1 2026, filed 13 May 2026.