GIM
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Granahan Investment Management’s Comfort Systems FIX Stock Holding History

Granahan Investment Management’s Portfolio FIX Stock Details FIX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-26,027
Closed -$35.9M – 155
2026
Q1 		$35.9M Sell
26,027
-8
-0% -$10.2K 1.74% 13
2025
Q4 		$24.3M Sell
26,035
-66,737
-72% -$61.6M 1.04% 30
2025
Q3 		$76.6M Buy
92,772
+24,160
+35% +$16.4M 3.13% 6
2025
Q2 		$36.8M Buy
68,612
+360
+0.5% +$157K 1.5% 17
2025
Q1 		$22M Buy
+68,252
New +$27.5M 1.1% 24
2024
Q3 		– Sell
-13,495
Closed -$4.1M – 191
2024
Q2 		$4.1M Buy
+13,495
New +$4.29M 0.16% 135
2015
Q4 		– Sell
-585,080
Closed -$15.9M – 245
2015
Q3 		$15.9M Sell
585,080
-30,110
-5% -$807K 0.49% 69
2015
Q2 		$14.1M Sell
615,190
-36,990
-6% -$813K 0.4% 90
2015
Q1 		$13.7M Buy
652,180
+196,090
+43% +$3.49M 0.39% 94
2014
Q4 		$7.81M Buy
456,090
+54,100
+13% +$814K 0.23% 132
2014
Q3 		$5.45M Buy
401,990
+368,040
+1,084% +$5.55M 0.17% 158
2014
Q2 		$536K Sell
33,950
-157,707
-82% -$2.46M 0.02% 209
2014
Q1 		$2.92M Sell
191,657
-83,370
-30% -$1.42M 0.08% 190
2013
Q4 		$5.33M Buy
275,027
+15,387
+6% +$291K 0.14% 171
2013
Q3 		$4.37M Buy
259,640
+14,780
+6% +$237K 0.12% 182
2013
Q2 		$3.65M Buy
+244,860
New +$3.33M 0.11% 185

Other funds holding FIX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Granahan Investment Management's FIX Position: Q2 2026 in Review

Granahan Investment Management sold out of Comfort Systems (FIX) in Q2 2026, closing a stake of 26,027 shares — an estimated $35.9M sold.

Granahan Investment Management first reported a position in FIX in Q2 2013 and held it in 16 quarters. The position peaked at $76.6M in Q3 2025. 1,348 funds tracked by Wall St. Rank hold FIX as of Q2 2026.

  • Granahan Investment Management reported no remaining Comfort Systems position as of Q2 2026 after selling out during the quarter.
  • Granahan Investment Management sold 26,027 Comfort Systems shares in Q2 2026, an estimated $35.9M.
  • Granahan Investment Management first reported a position in Comfort Systems in Q2 2013 and held it in 16 quarters.
  • Granahan Investment Management's Comfort Systems position peaked at $76.6M in Q3 2025.
  • 1,348 funds tracked by Wall St. Rank held Comfort Systems as of Q2 2026.

Based on Granahan Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.