Does Marshall Wace own CRL stock?

Yes. As of its Q2 2026 13F, Marshall Wace holds 342,995 shares of CRL (Charles Riv Labs International), worth $77.8M.

How many shares of CRL does Marshall Wace own?

As of its Q2 2026 13F, Marshall Wace holds 342,995 shares of CRL (Charles Riv Labs International).

As of its Q2 2026 13F, Marshall Wace's CRL position is worth $77.8M.

In Q2 2026, Marshall Wace increased its CRL position by 193,344 shares (+129.2%).

Marshall Wace already held CRL in its Q4 2018 13F, the earliest on record, and has listed it in 29 quarterly 13F filings.

Position history for MWMARSHALL WACE, LLP's holdings in CHARLES RIV LABS INTL INC

Current Value

$77.8M

Current Shares

342,995

Total Value Change

+$77.3M

Total Shares Change

+338,925

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	342,995	+129.2%	$77.8M	0.1%	$226.79	48
2026-Q1	Increased	149,651	+20.5%	$25.8M	0.0%	$172.50	34
2025-Q4	Decreased	124,193	-10.1%	$24.8M	0.0%	$199.48	0
2025-Q3	Increased	138,110	+881.5%	$21.6M	0.0%	$156.46	46
2025-Q2	Decreased	14,072	-62.9%	$2.1M	0.0%	$151.73	0
2025-Q1	Increased	37,934	+75.6%	$5.7M	0.0%	$150.52	41
2024-Q4	Decreased	21,608	-93.0%	$4M	0.0%	$184.60	0
2024-Q3	Decreased	309,059	-62.6%	$60.9M	0.1%	$196.97	0
2024-Q2	Increased	825,905	+24.6%	$170.6M	0.2%	$206.58	44
2024-Q1	New	662,849	-	$179.6M	0.3%	$270.95	50
2023-Q4	Exited	0	-100.0%	$0	0.0%	$236.40	0
2023-Q3	Decreased	121,479	-71.5%	$23.8M	0.0%	$195.98	0
2023-Q2	Decreased	426,526	-55.3%	$89.7M	0.2%	$210.25	0
2023-Q1	Increased	954,914	+9.2%	$192.7M	0.4%	$201.82	40
2022-Q4	Increased	874,773	+57.4%	$190.6M	0.4%	$217.90	52
2022-Q3	Increased	555,678	+63.3%	$109.4M	0.2%	$196.80	52
2022-Q2	Increased	340,306	+96.9%	$72.8M	0.1%	$213.97	57
2022-Q1	Decreased	172,859	-62.0%	$49.1M	0.1%	$283.97	0
2021-Q4	Increased	454,795	+50.3%	$171.4M	0.3%	$376.78	50
2021-Q3	Increased	302,537	+7.0%	$124.8M	0.5%	$412.67	46
2021-Q2	Decreased	282,727	-69.2%	$104.6M	0.5%	$369.92	0
2021-Q1	Increased	917,056	+7.5%	$265.8M	1.2%	$289.83	52
2020-Q4	Increased	852,914	+4.9%	$213.1M	1.2%	$249.86	51
2020-Q3	Increased	813,277	+789.3%	$184.2M	1.2%	$226.45	77
2020-Q2	New	91,448	-	$15.9M	0.1%	$174.35	47
2020-Q1	Exited	0	-100.0%	$0	0.0%	$126.21	0
2019-Q4	Increased	201,547	+66.2%	$30.8M	0.2%	$152.76	51
2019-Q3	Increased	121,244	+73.7%	$16M	0.1%	$132.37	51
2019-Q2	Increased	69,783	+832.4%	$9.9M	0.1%	$141.90	45
2019-Q1	Increased	7,484	+83.9%	$1.1M	0.0%	$145.25	39
2018-Q4	First report	4,070	-	$461,000	0.0%	$113.18	0