Aperio Group, LLC reports 0.49% decrease in ownership of CLB / Core Laboratories Inc.

코어 연구소 Inc.

US ˙ NYSE ˙ US21867A1051

Security	CLB / Core Laboratories Inc.
Institution	Aperio Group, LLC
Latest Disclosed Ownership	316,366 shares
Latest Disclosed Value	$ 8,387,000

On February 5, 2021 - Aperio Group, LLC filed a 13F-HR form disclosing ownership of 316,366 shares of Core Laboratories Inc. (US:CLB) valued at $8,386,863 USD as of December 31, 2020. The entity filed a previous 13F-HR on November 6, 2020 disclosing 317,915 shares of Core Laboratories Inc.. This represents a change in shares of -0.49% during the quarter. The current value of the position is $4,090,612 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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2021-02-05	2020-12-31	13F	CORE LABORATORIES N V	COM	N22717107	316,366	-1,549	-0.49	8,387	72.89	0.0248
2020-11-06	2020-09-30	13F	CORE LABORATORIES N V	COM	N22717107	317,915	-12,825	-3.88	4,851	-27.82	0.0164
2020-08-13	2020-06-30	13F	CORE LABORATORIES N V	COM	N22717107	330,740	81,037	32.45	6,721	160.30	0.0248
2020-05-05	2020-03-31	13F	CORE LABORATORIES N V	COM	N22717107	249,703	159,038	175.41	2,582	-24.39	0.0114
2020-02-13	2019-12-31	13F	CORE LABORATORIES N V	COM	N22717107	90,665	19,217	26.90	3,415	2.52	0.0123
2019-11-06	2019-09-30	13F	CORE LABORATORIES N V	COM	N22717107	71,448	4,808	7.21	3,331	-4.39	0.0132
2019-07-30	2019-06-30	13F	CORE LABORATORIES N V	COM	N22717107	66,640	29,599	79.91	3,484	36.47	0.0142
2019-05-13	2019-03-31	13F	CORE LABORATORIES N V	COM	N22717107	37,041	6,911	22.94	2,553	41.99	0.0110
2019-05-06	2018-12-31	13F/A-1	CORE LABORATORIES N V	COM	N22717107	30,130	6,792	29.10	1,798	-33.48	0.0091
2019-02-14	2018-12-31	13F	CORE LABORATORIES N V	COM	N22717107	30,324	6,986		1,809
2019-05-06	2018-09-30	13F/A-1	CORE LABORATORIES N V	COM	N22717107	23,338	1,268	5.75	2,703	-2.94	0.0119
2018-10-17	2018-09-30	13F	CORE LABORATORIES N V	COMMON	N22717107	23,338	1,268		2,703
2019-05-06	2018-06-30	13F/A-1	CORE LABORATORIES N V	COM	N22717107	22,070	2,144	10.76	2,785	29.17	0.0133
2018-07-30	2018-06-30	13F	CORE LABORATORIES N V	COMMON	N22717107	22,070	2,144		2,785
2019-05-01	2018-03-31	13F/A-1	CORE LABORATORIES N V	COM	N22717107	19,926	63	0.32	2,156	-0.92	0.0107
2018-05-08	2018-03-31	13F	CORE LABORATORIES N V	COMMON	N22717107	19,926	63		2,156
2019-05-01	2017-12-31	13F/A-1	CORE LABORATORIES N V	COM	N22717107	19,863	8,923	81.56	2,176	101.48	0.0112
2018-02-02	2017-12-31	13F	CORE LABORATORIES N V	COMMON	N22717107	19,863	8,923		2,176
2019-05-01	2017-09-30	13F/A-1	CORE LABORATORIES N V	COM	N22717107	10,940	5,058	85.99	1,080	81.21	0.0061
2017-10-25	2017-09-30	13F	CORE LABORATORIES N V	COMMON	N22717107	10,940	5,058		1,080
2019-04-22	2017-06-30	13F/A-1	CORE LABORATORIES N V	COM	N22717107	5,882	518	9.66	596	-3.87	0.0037
2017-07-18	2017-06-30	13F	CORE LABORATORIES N V	COMMON	N22717107	5,882	518		596
2019-04-22	2017-03-31	13F/A-1	CORE LABORATORIES N V	COM	N22717107	5,364	-970	-15.31	620	-18.42	0.0042
2017-05-05	2017-03-31	13F	CORE LABORATORIES N V	COMMON	N22717107	5,364	-970		620
2019-04-22	2016-12-31	13F/A-1	CORE LABORATORIES N V	COM	N22717107	6,334	906	16.69	760	24.59	0.0058
2017-02-14	2016-12-31	13F	CORE LABORATORIES N V	COMMON	N22717107	6,334	906		760
2019-04-12	2016-09-30	13F/A-1	CORE LABORATORIES N V	COM	N22717107	5,428	-1,235	-18.54	610	-26.06	0.0044
2016-11-01	2016-09-30	13F	CORE LABORATORIES N V	COMMON	N22717107	5,428	-1,235		610
2019-04-12	2016-06-30	13F/A-1	CORE LABORATORIES N V	COM	N22717107	6,663	482	7.80	825	18.71	0.0064
2016-08-12	2016-06-30	13F	CORE LABORATORIES N V	COMMON	N22717107	6,663	482		825
2019-04-12	2016-03-31	13F/A-1	CORE LABORATORIES N V	COM	N22717107	6,181	-1,477	-19.29	695	-16.57	0.0059
2016-04-28	2016-03-31	13F	CORE LABORATORIES N V	COMMON	N22717107	6,181	-1,477		695
2016-01-21	2015-12-31	13F	CORE LABORATORIES N V	COMMON	N22717107	7,658	1,240	19.32	833	29.95	0.0076
2015-10-19	2015-09-30	13F	CORE LABORATORIES N V	COMMON	N22717107	6,418	718	12.60	641	-1.38	0.0065
2015-07-29	2015-06-30	13F	CORE LABORATORIES N V	COMMON	N22717107	5,700	-495	-7.99	650	0.46	0.0067
2015-04-29	2015-03-31	13F	CORE LABORATORIES N V	COMMON	N22717107	6,195	6,195	0.00	647		0.0072
2015-01-30	2014-12-31	13F	CORE LABORATORIES N V	COMMON	N22717107	0	-4,569	-100.00	0	-100.00
2014-10-21	2014-09-30	13F	CORE LABORATORIES N V	COMMON	N22717107	4,569	-68	-1.47	669	-13.68	0.0090
2014-07-23	2014-06-30	13F	CORE LABORATORIES N V	COMMON	N22717107	4,637	-177	-3.68	775	-18.85	0.0113
2014-04-25	2014-03-31	13F	CORE LABORATORIES N V	COMMON	N22717107	4,814			955	-8.44	0.0134
2014-01-30	2013-12-31	13F	CORE LABORATORIES N V	COMMON	N22717107				1,043	13.49	0.0162
2013-10-24	2013-09-30	13F	CORE LABORATORIES N V	COMMON	N22717107	5,433	-214	-3.79	919	7.36	0.0177
2013-07-19	2013-06-30	13F	CORE LABORATORIES N V	COMMON	N22717107	5,647			856

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.