AIM
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Aigen Investment Management’s Comfort Systems FIX Stock Holding History

Aigen 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
2025
Q4 		– Sell
-502
Closed -$414K – 726
2025
Q3 		$414K Buy
+502
New +$340K 0.06% 446
2025
Q2 		– Sell
-1,030
Closed -$332K – 877
2025
Q1 		$332K Buy
+1,030
New +$415K 0.05% 469
2024
Q4 		– Sell
-777
Closed -$303K – 818
2024
Q3 		$303K Sell
777
-1,286
-62% -$424K 0.06% 467
2024
Q2 		$627K Buy
2,063
+883
+75% +$281K 0.12% 243
2024
Q1 		$375K Sell
1,180
-15
-1% -$3.83K 0.08% 362
2023
Q4 		$246K Sell
1,195
-1,158
-49% -$214K 0.04% 575
2023
Q3 		$401K Buy
+2,353
New +$413K 0.08% 434
2023
Q2 		– Sell
-1,525
Closed -$223K – 823
2023
Q1 		$223K Sell
1,525
-1,605
-51% -$208K 0.03% 498
2022
Q4 		$360K Buy
+3,130
New +$364K 0.05% 332
2020
Q3 		– Sell
-25,999
Closed -$1.06M – 931
2020
Q2 		$1.06M Buy
25,999
+19,489
+299% +$692K 0.14% 241
2020
Q1 		$238K Buy
6,510
+1,753
+37% +$77.7K 0.03% 655
2019
Q4 		$237K Buy
+4,757
New +$231K 0.04% 506

Other funds holding FIX

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 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
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $30.6B AUM 61.81% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Aigen Investment Management's FIX Position: Q4 2025 in Review

Aigen Investment Management sold out of Comfort Systems (FIX) in Q4 2025, closing a stake of 502 shares — an estimated $414K sold.

Aigen Investment Management first reported a position in FIX in Q4 2019 and held it in 12 quarters. The position peaked at $1.06M in Q2 2020. 1,041 funds tracked by Wall St. Rank hold FIX as of Q4 2025.

  • Aigen Investment Management reported no remaining Comfort Systems position as of Q4 2025 after selling out during the quarter.
  • Aigen Investment Management sold 502 Comfort Systems shares in Q4 2025, an estimated $414K.
  • Aigen Investment Management first reported a position in Comfort Systems in Q4 2019 and held it in 12 quarters.
  • Aigen Investment Management's Comfort Systems position peaked at $1.06M in Q2 2020.
  • 1,041 funds tracked by Wall St. Rank held Comfort Systems as of Q4 2025.

Based on Aigen Investment Management's 13F filing for Q4 2025, filed 13 Feb 2026.