William Blair & Company’s Thermon Group Holdings THR Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
Sell
-61,065
Closed -$2.27M 2004
2025
Q4
$2.27M Buy
61,065
+963
+2% +$31.6K 0.01% 712
2025
Q3
$1.61M Sell
60,102
-46,535
-44% -$1.25M ﹤0.01% 789
2025
Q2
$2.99M Sell
106,637
-92,287
-46% -$2.5M 0.01% 625
2025
Q1
$5.54M Buy
198,924
+495
+0.2% +$14.3K 0.02% 457
2024
Q4
$5.71M Buy
198,429
+7,328
+4% +$216K 0.02% 461
2024
Q3
$5.7M Sell
191,101
-6,107
-3% -$184K 0.02% 468
2024
Q2
$6.07M Buy
197,208
+3,684
+2% +$118K 0.02% 435
2024
Q1
$6.33M Sell
193,524
-335
-0.2% -$9.84K 0.02% 425
2023
Q4
$6.31M Buy
193,859
+5,883
+3% +$175K 0.02% 408
2023
Q3
$5.16M Sell
187,976
-5,324
-3% -$143K 0.02% 429
2023
Q2
$5.14M Buy
193,300
+114,905
+147% +$2.67M 0.02% 438
2023
Q1
$1.95M Buy
+78,395
New +$1.91M 0.01% 662
2022
Q3
Sell
-41,271
Closed -$580K 1886
2022
Q2
$580K Buy
41,271
+30,300
+276% +$468K ﹤0.01% 1016
2022
Q1
$178K Sell
10,971
-31,241
-74% -$543K ﹤0.01% 1544
2021
Q4
$715K Sell
42,212
-20,825
-33% -$364K ﹤0.01% 1078
2021
Q3
$1.09M Buy
63,037
+6,090
+11% +$101K ﹤0.01% 893
2021
Q2
$970K Buy
+56,947
New +$1.06M ﹤0.01% 932
2020
Q3
Sell
-14,146
Closed -$206K 1766
2020
Q2
$206K Hold
14,146
﹤0.01% 1233
2020
Q1
$213K Sell
14,146
-3,098
-18% -$64.5K ﹤0.01% 1147
2019
Q4
$462K Sell
17,244
-1,725
-9% -$43.5K ﹤0.01% 1016
2019
Q3
$436K Sell
18,969
-35,170
-65% -$832K ﹤0.01% 990
2019
Q2
$1.39M Sell
54,139
-2,003
-4% -$50K 0.01% 677
2019
Q1
$1.38M Sell
56,142
-1,310
-2% -$31.2K 0.01% 653
2018
Q4
$1.17M Buy
57,452
+14,583
+34% +$329K 0.01% 653
2018
Q3
$1.1M Buy
+42,869
New +$1.08M 0.01% 713
2018
Q1
Sell
-8,550
Closed -$202K 1588
2017
Q4
$202K Buy
+8,550
New +$187K ﹤0.01% 1267
2013
Q3
Sell
-65,150
Closed -$1.33M 2076
2013
Q2
$1.33M Buy
+65,150
New +$1.31M ﹤0.01% 1183

Other funds holding THR

William Blair & Company's THR Position: Q1 2026 in Review

William Blair & Company sold out of Thermon Group Holdings (THR) in Q1 2026, closing a stake of 61,065 shares — an estimated $2.27M sold.

William Blair & Company first reported a position in THR in Q2 2013 and held it in 27 quarters. The position peaked at $6.33M in Q1 2024. 215 funds tracked by Wall St. Rank hold THR as of Q1 2026.

  • William Blair & Company reported no remaining Thermon Group Holdings position as of Q1 2026 after selling out during the quarter.
  • William Blair & Company sold 61,065 Thermon Group Holdings shares in Q1 2026, an estimated $2.27M.
  • William Blair & Company first reported a position in Thermon Group Holdings in Q2 2013 and held it in 27 quarters.
  • William Blair & Company's Thermon Group Holdings position peaked at $6.33M in Q1 2024.
  • 215 funds tracked by Wall St. Rank held Thermon Group Holdings as of Q1 2026.

Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.