Core Laboratories Inc.
US ˙ NYSE ˙ US21867A1051

SecurityCLB / Core Laboratories Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Trexquant Investment LP closes position in CLB / Core Laboratories Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 0 shares of Core Laboratories Inc. (US:CLB) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 53,831 shares of Core Laboratories Inc.. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F CORE LABORATORIES COM 21867A105 0 -100.00 0
2026-02-17 2025-12-31 13F CORE LABORATORIES COM 21867A105 53,831 -191,670 -78.07 863 -71.59 0.0077
2025-11-14 2025-09-30 13F CORE LABORATORIES COM 21867A105 245,501 34,201 16.19 3,034 24.65 0.0312
2025-08-12 2025-06-30 13F CORE LABORATORIES COM 21867A105 211,300 83,263 65.03 2,434 26.84 0.0275
2025-05-14 2025-03-31 13F CORE LABORATORIES COM 21867A105 128,037 25,086 24.37 1,919 7.69 0.0223
2025-02-12 2024-12-31 13F CORE LABORATORIES COM 21867A105 102,951 -54,470 -34.60 1,782 -38.91 0.0208
2024-11-12 2024-09-30 13F CORE LABORATORIES COM 21867A105 157,421 99,993 174.12 2,917 150.39 0.0369
2024-08-13 2024-06-30 13F CORE LABORATORIES COM 21867A105 57,428 23,419 68.86 1,165 100.86 0.0178
2024-05-14 2024-03-31 13F CORE LABORATORIES COM 21867A105 34,009 34,009 581 0.0116
2022-05-13 2022-03-31 13F CORE LABORATORIES N V COM N22717107 0 -13,704 -100.00 0 -100.00
2022-02-14 2021-12-31 13F CORE LABORATORIES N V COM N22717107 13,704 13,704 306 0.0189
2021-02-11 2020-12-31 13F CORE LABORATORIES N V COM N22717107 0 -11,980 -100.00 0 -100.00
2020-11-06 2020-09-30 13F CORE LABORATORIES N V COM N22717107 11,980 11,980 183 0.0118
2020-08-07 2020-06-30 13F CORE LABORATORIES N V COM N22717107 0 -44,970 -100.00 0 -100.00
2020-05-08 2020-03-31 13F CORE LABORATORIES N V COM N22717107 44,970 28,850 178.97 465 -23.39 0.0337
2020-02-12 2019-12-31 13F CORE LABORATORIES N V COM N22717107 16,120 16,120 607 0.0359
2019-05-13 2019-03-31 13F CORE LABORATORIES N V COM N22717107 0 -46,524 -100.00 0 -100.00
2019-02-13 2018-12-31 13F CORE LABORATORIES N V COM N22717107 46,524 42,463 1,045.63 2,776 490.64 0.1735
2018-11-09 2018-09-30 13F CORE LABORATORIES N V COM N22717107 4,061 4,061 470 0.0353
2017-11-09 2017-09-30 13F CORE LABORATORIES N V COM N22717107 0 -8,900 -100.00 0 -100.00
2017-08-01 2017-06-30 13F CORE LABORATORIES N V COM N22717107 8,900 8,900 901 0.2466
2017-02-10 2016-12-31 13F CORE LABORATORIES N V COM N22717107 0 -4,300 -100.00 0 -100.00
2016-11-10 2016-09-30 13F CORE LABORATORIES N V COM N22717107 4,300 -19,192 -81.70 483 -83.40 0.1078
2016-08-10 2016-06-30 13F CORE LABORATORIES N V COM N22717107 23,492 23,492 0.00 2,910 0.3824
2016-05-11 2016-03-31 13F CORE LABORATORIES N V COM N22717107 0 0 0 0.0000
2015-11-02 2015-09-30 13F CORE LABORATORIES N V COM N22717107 0 -10,200 -100.00 0 -100.00
2015-08-12 2015-06-30 13F CORE LABORATORIES N V COM N22717107 10,200 10,200 1,163 0.1306
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.