Group One Trading
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Group One Trading’s Charles River Laboratories CRL Stock Holding History

Group One Trading’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
2026
Q2 		$357K Buy
1,573
+1,498
+1,997% +$267K ﹤0.01% 3810
2026
Q1 		$12.9K Sell
75
-220
-75% -$40.8K ﹤0.01% 6221
2025
Q4 		$58.8K Buy
295
+163
+123% +$29.6K ﹤0.01% 5465
2025
Q3 		$20.7K Sell
132
-841
-86% -$134K ﹤0.01% 6671
2025
Q2 		$148K Sell
973
-9,733
-91% -$1.3M ﹤0.01% 4636
2025
Q1 		$1.61M Buy
10,706
+2,685
+33% +$450K ﹤0.01% 2028
2024
Q4 		$1.48M Buy
8,021
+2,285
+40% +$440K ﹤0.01% 2186
2024
Q3 		$1.13M Buy
+5,736
New +$1.19M ﹤0.01% 2190
2024
Q2 		– Sell
-91
Closed -$20.6K – 6831
2024
Q1 		$24.7K Buy
91
+40
+78% +$9.55K ﹤0.01% 5274
2023
Q4 		$12.1K Buy
+51
New +$10K ﹤0.01% 6086
2023
Q2 		– Sell
-1,372
Closed -$273K – 7718
2023
Q1 		$277K Sell
1,372
-1,544
-53% -$350K ﹤0.01% 3362
2022
Q4 		$635K Buy
2,916
+2,842
+3,841% +$621K ﹤0.01% 2816
2022
Q3 		$15K Sell
74
-128
-63% -$27.6K ﹤0.01% 6249
2022
Q2 		$43K Sell
202
-3,492
-95% -$853K ﹤0.01% 5690
2022
Q1 		$1.05M Buy
3,694
+2,311
+167% +$713K ﹤0.01% 3020
2021
Q4 		$521K Buy
+1,383
New +$537K ﹤0.01% 4088
2019
Q2 		– Sell
-8,392
Closed -$1.22M – 5017
2019
Q1 		$1.22M Buy
8,392
+4,330
+107% +$569K 0.01% 1270
2018
Q4 		$460K Buy
+4,062
New +$509K ﹤0.01% 2035
2016
Q1 		– Sell
-402
Closed -$29.8K – 4608
2015
Q4 		$32K Sell
402
-2,475
-86% -$179K ﹤0.01% 3668
2015
Q3 		$183K Sell
2,877
-866
-23% -$62.2K ﹤0.01% 2566
2015
Q2 		$263K Buy
+3,743
New +$277K ﹤0.01% 2335
2014
Q3 		– Sell
-507
Closed -$29K – 5171
2014
Q2 		$27K Buy
+507
New +$27.8K ﹤0.01% 3958
2013
Q4 		– Sell
-718
Closed -$36.1K – 5255
2013
Q3 		$33K Sell
718
-874
-55% -$40.1K ﹤0.01% 3849
2013
Q2 		$65K Buy
+1,592
New +$68.2K ﹤0.01% 3195

Other funds holding CRL

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Harris Associates
Harris Associates Chicago, Illinois $75.4B AUM 14.46% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
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
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

Group One Trading's CRL Position: Q2 2026 in Review

Group One Trading increased its Charles River Laboratories (CRL) stake by 1,997% in Q2 2026, buying an estimated $267K and bringing the position to 1,573 shares worth $357K. The position accounts for ﹤0.01% of the portfolio, ranked #3810.

Group One Trading first reported a position in CRL in Q2 2013 and has held it in 24 quarters since. The position peaked at $1.61M in Q1 2025. 569 funds tracked by Wall St. Rank hold CRL as of Q2 2026.

  • Group One Trading held 1,573 shares of Charles River Laboratories worth $357K as of Q2 2026.
  • Group One Trading bought 1,498 Charles River Laboratories shares in Q2 2026, an estimated $267K.
  • Charles River Laboratories made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #3810 holding.
  • Group One Trading first reported a position in Charles River Laboratories in Q2 2013 and has held it in 24 quarters since.
  • Group One Trading's Charles River Laboratories position peaked at $1.61M in Q1 2025.
  • 569 funds tracked by Wall St. Rank held Charles River Laboratories as of Q2 2026.

Based on Group One Trading's 13F filing for Q2 2026, filed 14 Aug 2026.