TRCT
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Tower Research Capital (TRC)’s Core Laboratories CLB Stock Holding History

Tower Research Capital (TRC)’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 		$37.9K Buy
2,257
+1,063
+89% +$19K ﹤0.01% 2983
2025
Q4 		$19.1K Sell
1,194
-3,367
-74% -$50.1K ﹤0.01% 3129
2025
Q3 		$56.4K Sell
4,561
-2,772
-38% -$32.5K ﹤0.01% 2435
2025
Q2 		$84.5K Buy
7,333
+5,869
+401% +$69.6K ﹤0.01% 2518
2025
Q1 		$21.9K Sell
1,464
-1,820
-55% -$30.5K ﹤0.01% 2875
2024
Q4 		$56.8K Buy
3,284
+2,936
+844% +$56.7K ﹤0.01% 2473
2024
Q3 		$6.45K Sell
348
-9,690
-97% -$195K ﹤0.01% 4145
2024
Q2 		$204K Buy
10,038
+8,580
+588% +$152K ﹤0.01% 2064
2024
Q1 		$24.9K Sell
1,458
-13,730
-90% -$216K ﹤0.01% 2803
2023
Q4 		$268K Buy
15,188
+11,980
+373% +$241K ﹤0.01% 1861
2023
Q3 		$77K Buy
3,208
+1,706
+114% +$41.9K ﹤0.01% 2181
2023
Q2 		$34.9K Buy
1,502
+1,487
+9,913% +$33.6K ﹤0.01% 2885
2023
Q1 		$0 Buy
+15
New +$351 ﹤0.01% 5855
2022
Q4 		– Sell
-3,452
Closed -$47K – 5936
2022
Q3 		$47K Sell
3,452
-29,268
-89% -$493K ﹤0.01% 3207
2022
Q2 		$648K Buy
+32,720
New +$869K 0.01% 965
2022
Q1 		– Sell
-170
Closed -$4K – 6129
2021
Q4 		$4K Sell
170
-1,410
-89% -$36.8K ﹤0.01% 5286
2021
Q3 		$44K Sell
1,580
-32
-2% -$974 ﹤0.01% 3057
2021
Q2 		$63K Sell
1,612
-4,148
-72% -$149K ﹤0.01% 2818
2021
Q1 		$166K Buy
5,760
+5,661
+5,718% +$193K ﹤0.01% 2163
2020
Q4 		$3K Sell
99
-10,107
-99% -$206K ﹤0.01% 4781
2020
Q3 		$156K Buy
10,206
+7,124
+231% +$149K ﹤0.01% 2788
2020
Q2 		$63K Buy
3,082
+2,927
+1,888% +$52.5K ﹤0.01% 2865
2020
Q1 		$2K Sell
155
-5,065
-97% -$142K ﹤0.01% 2558
2019
Q4 		$197K Buy
5,220
+4,897
+1,516% +$220K 0.02% 593
2019
Q3 		$15K Sell
323
-21,705
-99% -$1.01M ﹤0.01% 2655
2019
Q2 		$1.15M Buy
22,028
+8,331
+61% +$489K 0.08% 228
2019
Q1 		$944K Buy
13,697
+7,528
+122% +$505K 0.06% 303
2018
Q4 		$368K Buy
6,169
+956
+18% +$82.5K 0.03% 511
2018
Q3 		$604K Buy
5,213
+4,721
+960% +$533K 0.04% 395
2018
Q2 		$62K Sell
492
-1,071
-69% -$130K ﹤0.01% 1721
2018
Q1 		$169K Sell
1,563
-2,058
-57% -$228K 0.01% 958
2017
Q4 		$397K Buy
+3,621
New +$361K 0.05% 347
2017
Q2 		– Sell
-70
Closed -$8K – 2777
2017
Q1 		$8K Sell
70
-350
-83% -$40.7K ﹤0.01% 1903
2016
Q4 		$50K Sell
420
-115
-21% -$12.7K 0.01% 1427
2016
Q3 		$60K Sell
535
-1,188
-69% -$137K 0.01% 1041
2016
Q2 		$213K Buy
1,723
+1,387
+413% +$167K 0.02% 623
2016
Q1 		$38K Sell
336
-1,572
-82% -$163K 0.01% 924
2015
Q4 		$207K Buy
+1,908
New +$218K 0.03% 187
2015
Q3 		– Sell
-2,289
Closed -$261K – 4072
2015
Q2 		$261K Buy
2,289
+609
+36% +$73.8K 0.02% 272
2015
Q1 		$176K Buy
+1,680
New +$179K 0.02% 487
2014
Q1 		– Sell
-266
Closed -$51K – 4488
2013
Q4 		$51K Sell
266
-1,528
-85% -$284K 0.01% 1371
2013
Q3 		$304K Buy
1,794
+1,774
+8,870% +$275K 0.03% 512
2013
Q2 		$3K Buy
+20
New +$2.83K ﹤0.01% 3261

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

Tower Research Capital (TRC)'s CLB Position: Q1 2026 in Review

Tower Research Capital (TRC) increased its Core Laboratories (CLB) stake by 89% in Q1 2026, buying an estimated $19K and bringing the position to 2,257 shares worth $37.9K. The position accounts for ﹤0.01% of the portfolio, ranked #2983.

Tower Research Capital (TRC) first reported a position in CLB in Q2 2013 and has held it in 43 quarters since. The position peaked at $1.15M in Q2 2019. 190 funds tracked by Wall St. Rank hold CLB as of Q1 2026.

  • Tower Research Capital (TRC) held 2,257 shares of Core Laboratories worth $37.9K as of Q1 2026.
  • Tower Research Capital (TRC) bought 1,063 Core Laboratories shares in Q1 2026, an estimated $19K.
  • Core Laboratories made up ﹤0.01% of Tower Research Capital (TRC)'s portfolio in Q1 2026, its #2983 holding.
  • Tower Research Capital (TRC) first reported a position in Core Laboratories in Q2 2013 and has held it in 43 quarters since.
  • Tower Research Capital (TRC)'s Core Laboratories position peaked at $1.15M in Q2 2019.
  • 190 funds tracked by Wall St. Rank held Core Laboratories as of Q1 2026.

Based on Tower Research Capital (TRC)'s 13F filing for Q1 2026, filed 15 May 2026.