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
-1,485
Closed -$232K – 1462
2025
Q3 		$232K Buy
+1,485
New +$236K ﹤0.01% 1334
2024
Q3 		– Sell
-545
Closed -$113K – 1556
2024
Q2 		$113K Buy
+545
New +$123K ﹤0.01% 1175
2022
Q3 		– Sell
-7,060
Closed -$1.52M – 1376
2022
Q2 		$1.51M Sell
7,060
-19,130
-73% -$4.67M ﹤0.01% 1137
2022
Q1 		$7.44M Buy
+26,190
New +$8.08M 0.01% 790
2021
Q4 		– Sell
-9,033
Closed -$3.51M – 1616
2021
Q3 		$3.73M Buy
+9,033
New +$3.75M 0.01% 875
2021
Q2 		– Sell
-521
Closed -$151K – 1384
2021
Q1 		$151K Buy
521
+503
+2,794% +$140K ﹤0.01% 1157
2020
Q4 		$4K Sell
18
-428
-96% -$102K ﹤0.01% 1231
2020
Q3 		$101K Sell
446
-14,039
-97% -$2.91M ﹤0.01% 1068
2020
Q2 		$2.52M Sell
14,485
-1,530
-10% -$244K 0.01% 825
2020
Q1 		$2.02M Buy
16,015
+14,041
+711% +$2.11M 0.01% 713
2019
Q4 		$302K Sell
1,974
-3,227
-62% -$447K ﹤0.01% 991
2019
Q3 		$688K Sell
5,201
-10,059
-66% -$1.35M ﹤0.01% 877
2019
Q2 		$2.17M Sell
15,260
-7,512
-33% -$1.02M 0.01% 642
2019
Q1 		$3.31M Buy
22,772
+14,260
+168% +$1.87M 0.02% 547
2018
Q4 		$963K Buy
+8,512
New +$1.07M 0.01% 861
2018
Q3 		– Sell
-4,526
Closed -$508K – 1085
2018
Q2 		$508K Buy
+4,526
New +$489K ﹤0.01% 895

Other funds holding CRL

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
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $65.2B AUM 39.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Harris Associates
Harris Associates Chicago, Illinois $75.4B AUM 14.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
AI
Ariel Investments Chicago, Illinois $10B AUM 42.59% 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. 582 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.
  • 582 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.