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GIM
Granahan Investment Management’s
Comfort Systems
FIX
Stock Holding History
Granahan Investment Management’s Portfolio
FIX Stock Details
FIX Fund Activity
Bought
Maintained
Sold
Shares
Quarter
Market Value
Status
Shares
Change in
Stake
Trade Value
Portfolio Weight
Portfolio Position
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
New York
$5.7T AUM
30.48%
1-Year Est. Return
VCM
Vanguard Capital Management
Malvern, Pennsylvania
$4.04T AUM
VPM
Vanguard Portfolio Management
Malvern, Pennsylvania
$1.91T AUM
State Street
Boston, Massachusetts
$2.9T AUM
29.55%
1-Year Est. Return
Fidelity Investments
Boston, Massachusetts
$1.9T AUM
41.92%
1-Year Est. Return
Geode Capital Management
Boston, Massachusetts
$1.61T AUM
30.72%
1-Year Est. Return
AQR Capital Management
Greenwich, Connecticut
$218B AUM
29.41%
1-Year Est. Return
Capital World Investors
Los Angeles, California
$733B AUM
35.63%
1-Year Est. Return
JP Morgan Chase
New York
$1.47T AUM
27.86%
1-Year Est. Return
Westfield Capital Management
Boston, Massachusetts
$23.8B AUM
49.45%
1-Year Est. Return
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Fund Insights
Common Fund Bets
See what stocks and ETFs funds are collectively bullish/bearish on
Largest Fund Trades
Explore the largest stock and ETF buys and sells made by funds
High Conviction Trades
Discover high conviction trades that caused a significant change in a fund's stake in a stock
Fund Manager Portfolios
Gain insights from the world’s largest funds and super investors
WSR Indexes
Fund Manager Index
Stock index based on fund manager consensus updated each quarter
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