Twin Tree Management
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Twin Tree Management’s Charles River Laboratories CRL Stock Holding History

Twin Tree Management’s Portfolio CRL Stock Details CRL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-4,700
Closed -$735K – 1463
2025
Q3 		$735K Sell
4,700
-32,700
-87% -$5.19M ﹤0.01% 1229
2025
Q2 		$5.67M Buy
+37,400
New +$4.99M 0.01% 957
2023
Q3 		– Sell
-3,200
Closed -$673K – 1266
2023
Q2 		$673K Sell
3,200
-2,700
-46% -$537K ﹤0.01% 1037
2023
Q1 		$1.19M Buy
+5,900
New +$1.34M ﹤0.01% 981
2022
Q3 		– Sell
-14,500
Closed -$3.1M – 1377
2022
Q2 		$3.1M Sell
14,500
-39,100
-73% -$9.55M ﹤0.01% 983
2022
Q1 		$15.2M Buy
53,600
+53,200
+13,300% +$16.4M 0.02% 570
2021
Q4 		$151K Buy
+400
New +$155K ﹤0.01% 1444
2021
Q2 		– Sell
-11,700
Closed -$3.39M – 1385
2021
Q1 		$3.39M Buy
11,700
+11,600
+11,600% +$3.22M 0.01% 733
2020
Q4 		$25K Sell
100
-56,400
-100% -$13.4M ﹤0.01% 1199
2020
Q3 		$12.8M Sell
56,500
-32,000
-36% -$6.64M 0.05% 378
2020
Q2 		$15.4M Buy
88,500
+61,700
+230% +$9.85M 0.06% 349
2020
Q1 		$3.38M Buy
26,800
+5,700
+27% +$855K 0.02% 585
2019
Q4 		$3.22M Sell
21,100
-6,700
-24% -$928K 0.01% 606
2019
Q3 		$3.68M Sell
27,800
-47,200
-63% -$6.33M 0.01% 555
2019
Q2 		$10.6M Sell
75,000
-20,500
-21% -$2.78M 0.05% 287
2019
Q1 		$13.9M Buy
95,500
+75,000
+366% +$9.85M 0.07% 231
2018
Q4 		$2.32M Buy
+20,500
New +$2.57M 0.01% 684

Other funds holding CRL

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $59.7B AUM 29.08% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Harris Associates
Harris Associates Chicago, Illinois $75B AUM 11.27% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
AI
Ariel Investments Chicago, Illinois $8.93B AUM 29.58% 1-Year Est. Return

Twin Tree Management's CRL Position: Q4 2025 in Review

Twin Tree Management sold out of Charles River Laboratories (CRL) in Q4 2025, closing a stake of 1,485 shares — an estimated $232K sold.

Twin Tree Management first reported a position in CRL in Q2 2018 and held it in 16 quarters. The position peaked at $7.44M in Q1 2022. 580 funds tracked by Wall St. Rank hold CRL as of Q4 2025.

  • Twin Tree Management reported no remaining Charles River Laboratories position as of Q4 2025 after selling out during the quarter.
  • Twin Tree Management sold 1,485 Charles River Laboratories shares in Q4 2025, an estimated $232K.
  • Twin Tree Management first reported a position in Charles River Laboratories in Q2 2018 and held it in 16 quarters.
  • Twin Tree Management's Charles River Laboratories position peaked at $7.44M in Q1 2022.
  • 580 funds tracked by Wall St. Rank held Charles River Laboratories as of Q4 2025.

Based on Twin Tree Management's 13F filing for Q4 2025, filed 11 Feb 2026.