Marshall Wace
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Marshall Wace’s Core Laboratories CLB Stock Holding History

Marshall Wace’s Portfolio CLB Stock Details CLB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.98M Buy
+117,744
New +$2.11M ﹤0.01% 1795
2025
Q1 		– Sell
-11,123
Closed -$193K – 2680
2024
Q4 		$193K Sell
11,123
-10,188
-48% -$197K ﹤0.01% 2363
2024
Q3 		$395K Sell
21,311
-59,741
-74% -$1.2M ﹤0.01% 2010
2024
Q2 		$1.64M Sell
81,052
-41,819
-34% -$740K ﹤0.01% 1457
2024
Q1 		$2.1M Buy
122,871
+104,510
+569% +$1.64M ﹤0.01% 1344
2023
Q4 		$324K Buy
+18,361
New +$370K ﹤0.01% 1863
2023
Q2 		– Sell
-19,970
Closed -$440K – 2520
2023
Q1 		$440K Buy
+19,970
New +$467K ﹤0.01% 2152
2022
Q4 		– Sell
-124,469
Closed -$1.68M – 2980
2022
Q3 		$1.68M Buy
124,469
+38,029
+44% +$641K ﹤0.01% 2125
2022
Q2 		$1.71M Buy
+86,440
New +$2.3M ﹤0.01% 2101
2022
Q1 		– Sell
-835,491
Closed -$18.6M – 3415
2021
Q4 		$18.6M Buy
835,491
+662,216
+382% +$17.3M 0.03% 518
2021
Q3 		$4.81M Buy
+173,275
New +$5.27M 0.02% 965
2019
Q2 		– Sell
-433
Closed -$30K – 1413
2019
Q1 		$30K Buy
+433
New +$29K ﹤0.01% 1594
2017
Q1 		– Sell
-8,065
Closed -$968K – 374
2016
Q4 		$968K Sell
8,065
-62,437
-89% -$6.91M 0.01% 757
2016
Q3 		$7.92M Sell
70,502
-136,875
-66% -$15.8M 0.06% 322
2016
Q2 		$25.7M Buy
207,377
+103,785
+100% +$12.5M 0.22% 117
2016
Q1 		$11.6M Buy
+103,592
New +$10.8M 0.11% 190

Other funds holding CLB

AI
Ariel Investments Chicago, Illinois $8.93B AUM 29.58% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
DGI
Disciplined Growth Investors Minneapolis, Minnesota $4.89B AUM 33.85% 1-Year Est. Return
EARNEST Partners
EARNEST Partners Atlanta, Georgia $24.3B AUM 34.41% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
CAMG
CWA Asset Management Group Naples, Florida $3.28B AUM 34.07% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Marshall Wace's CLB Position: Q1 2026 in Review

Marshall Wace opened a new position in Core Laboratories (CLB) in Q1 2026: 117,744 shares worth $1.98M. The stake represents ﹤0.01% of the portfolio and ranks #1795 among its holdings. This is a return to the name: Marshall Wace previously reported a position in CLB as recently as Q4 2024.

Marshall Wace first reported a position in CLB in Q1 2016 and has held it in 16 quarters since. The position peaked at $25.7M in Q2 2016. 190 funds tracked by Wall St. Rank hold CLB as of Q1 2026.

  • Marshall Wace held 117,744 shares of Core Laboratories worth $1.98M as of Q1 2026.
  • Core Laboratories was a new Marshall Wace position in Q1 2026.
  • Core Laboratories made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #1795 holding.
  • Marshall Wace first reported a position in Core Laboratories in Q1 2016 and has held it in 16 quarters since.
  • Marshall Wace's Core Laboratories position peaked at $25.7M in Q2 2016.
  • 190 funds tracked by Wall St. Rank held Core Laboratories as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.