SCHLUMBERGER LTD

Ticker: SLB CUSIP: 806857108 Class: COM STK

Calamos Advisors LLC's Holding History (CIK: 0001316507)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 496,014 Value ($000) $19,037 Avg Close $36.06 Range $31.39 - $40.88

Q3 2025

Shares 765,234 Value ($000) $26,301 Avg Close $34.34 Range $31.64 - $37.55

Q2 2025

Shares 327,046 Value ($000) $11,054 Avg Close $33.94 Range $30.37 - $41.43

Q1 2025

Shares 327,046 Value ($000) $13,671 Avg Close $39.90 Range $36.86 - $43.29

Q4 2024

Shares 558,506 Value ($000) $21,413 Avg Close $40.51 Range $35.40 - $44.46

Q3 2024

Shares 557,372 Value ($000) $23,382 Avg Close $42.68 Range $37.24 - $48.75

Q2 2024

Shares 560,157 Value ($000) $26,428 Avg Close $45.97 Range $40.78 - $52.92

Q1 2024

Shares 566,723 Value ($000) $31,062 Avg Close $47.83 Range $44.60 - $52.95

Q4 2023

Shares 571,550 Value ($000) $29,743 Avg Close $51.21 Range $45.47 - $57.59

Q3 2023

Shares 573,179 Value ($000) $33,416 Avg Close $54.41 Range $45.27 - $58.45

Q2 2023

Shares 571,268 Value ($000) $28,061 Avg Close $44.51 Range $39.82 - $50.15

Q1 2023

Shares 606,251 Value ($000) $29,767 Avg Close $49.39 Range $40.84 - $55.14

Q4 2022

Shares 619,411 Value ($000) $33,114 Avg Close $46.08 Range $34.50 - $51.80

Q3 2022

Shares 673,701 Value ($000) $24,186 Avg Close $33.41 Range $28.20 - $37.64

Q2 2022

Shares 910,444 Value ($000) $32,557 Avg Close $38.29 Range $31.63 - $45.85

Q1 2022

Shares 886,348 Value ($000) $36,615 Avg Close $35.90 Range $27.40 - $42.42

Q4 2021

Shares 549,256 Value ($000) $16,450 Avg Close $28.71 Range $25.27 - $31.85

Q3 2021

Shares 538,505 Value ($000) $15,961 Avg Close $26.00 Range $23.47 - $30.41

Q2 2021

Shares 515,802 Value ($000) $16,511 Avg Close $27.77 Range $22.13 - $33.41

Q1 2021

Shares 460,022 Value ($000) $12,508 Avg Close $23.71 Range $19.07 - $27.44

Q4 2020

Shares 480,569 Value ($000) $10,491 Avg Close $16.89 Range $12.23 - $21.46

Q3 2020

Shares 488,461 Value ($000) $7,600 Avg Close $16.53 Range $13.77 - $18.87

Q2 2020

Shares 505,149 Value ($000) $9,290 Avg Close $15.47 Range $10.72 - $21.06

Q1 2020

Shares 518,384 Value ($000) $6,993 Avg Close $25.29 Range $10.46 - $35.72

Q4 2019

Shares 543,296 Value ($000) $21,840 Avg Close $30.72 Range $26.24 - $35.53

Q3 2019

Shares 799,783 Value ($000) $27,329 Avg Close $30.96 Range $26.16 - $34.90

Q2 2019

Shares 904,940 Value ($000) $35,962 Avg Close $33.65 Range $28.64 - $40.63

Q1 2019

Shares 900,046 Value ($000) $39,215 Avg Close $35.74 Range $29.04 - $38.52

Q4 2018

Shares 868,258 Value ($000) $31,327 Avg Close $40.20 Range $28.75 - $51.73

Q3 2018

Shares 1,151,807 Value ($000) $70,168 Avg Close $52.03 Range $48.16 - $56.13

Q2 2018

Shares 1,167,417 Value ($000) $78,252 Avg Close $55.08 Range $49.65 - $60.38

Q1 2018

Shares 1,108,192 Value ($000) $71,789 Avg Close $55.74 Range $50.17 - $63.87

Q4 2017

Shares 998,951 Value ($000) $67,319 Avg Close $51.22 Range $48.13 - $54.87

Q3 2017

Shares 811,657 Value ($000) $56,621 Avg Close $51.87 Range $48.95 - $55.22

Q2 2017

Shares 863,916 Value ($000) $56,880 Avg Close $55.82 Range $50.94 - $62.85

Q1 2017

Shares 886,736 Value ($000) $69,254 Avg Close $63.35 Range $59.16 - $67.83

Q4 2016

Shares 1,028,847 Value ($000) $86,372 Avg Close $63.04 Range $59.05 - $67.18

Q3 2016

Shares 1,122,378 Value ($000) $88,264 Avg Close $60.67 Range $57.06 - $64.05

Q2 2016

Shares 1,071,473 Value ($000) $84,732 Avg Close $58.24 Range $54.33 - $62.12

Q1 2016

Shares 1,013,947 Value ($000) $74,779 Avg Close $53.13 Range $44.84 - $57.72

Q4 2015

Shares 1,304,493 Value ($000) $90,988 Avg Close $56.10 Range $49.76 - $61.62

Q3 2015

Shares 1,427,419 Value ($000) $98,449 Avg Close $58.92 Range $50.51 - $64.38

Q2 2015

Shares 1,360,046 Value ($000) $117,222 Avg Close $66.77 Range $61.74 - $70.26

Q1 2015

Shares 1,468,204 Value ($000) $122,507 Avg Close $61.34 Range $55.51 - $65.73

Q4 2014

Shares 1,448,107 Value ($000) $123,683 Avg Close $67.34 Range $57.62 - $74.84

Q3 2014

Shares 2,619,567 Value ($000) $266,384 Avg Close $79.49 Range $73.30 - $86.48

Q2 2014

Shares 2,760,580 Value ($000) $325,611 Avg Close $74.85 Range $70.12 - $86.02

Q1 2014

Shares 3,195,641 Value ($000) $311,575 Avg Close $65.48 Range $61.94 - $71.41

Q4 2013

Shares 3,333,128 Value ($000) $300,348 Avg Close $65.05 Range $61.32 - $68.30

Q3 2013

Shares 4,013,008 Value ($000) $354,589 Avg Close $58.98 Range $51.50 - $64.56

Q2 2013

Shares 4,055,156 Value ($000) $290,592 Avg Close $52.90 Range $49.31 - $55.56

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	496,014	$19,037	$36.06	$31.39 - $40.88
Q3 2025	765,234	$26,301	$34.34	$31.64 - $37.55
Q2 2025	327,046	$11,054	$33.94	$30.37 - $41.43
Q1 2025	327,046	$13,671	$39.90	$36.86 - $43.29
Q4 2024	558,506	$21,413	$40.51	$35.40 - $44.46
Q3 2024	557,372	$23,382	$42.68	$37.24 - $48.75
Q2 2024	560,157	$26,428	$45.97	$40.78 - $52.92
Q1 2024	566,723	$31,062	$47.83	$44.60 - $52.95
Q4 2023	571,550	$29,743	$51.21	$45.47 - $57.59
Q3 2023	573,179	$33,416	$54.41	$45.27 - $58.45
Q2 2023	571,268	$28,061	$44.51	$39.82 - $50.15
Q1 2023	606,251	$29,767	$49.39	$40.84 - $55.14
Q4 2022	619,411	$33,114	$46.08	$34.50 - $51.80
Q3 2022	673,701	$24,186	$33.41	$28.20 - $37.64
Q2 2022	910,444	$32,557	$38.29	$31.63 - $45.85
Q1 2022	886,348	$36,615	$35.90	$27.40 - $42.42
Q4 2021	549,256	$16,450	$28.71	$25.27 - $31.85
Q3 2021	538,505	$15,961	$26.00	$23.47 - $30.41
Q2 2021	515,802	$16,511	$27.77	$22.13 - $33.41
Q1 2021	460,022	$12,508	$23.71	$19.07 - $27.44
Q4 2020	480,569	$10,491	$16.89	$12.23 - $21.46
Q3 2020	488,461	$7,600	$16.53	$13.77 - $18.87
Q2 2020	505,149	$9,290	$15.47	$10.72 - $21.06
Q1 2020	518,384	$6,993	$25.29	$10.46 - $35.72
Q4 2019	543,296	$21,840	$30.72	$26.24 - $35.53
Q3 2019	799,783	$27,329	$30.96	$26.16 - $34.90
Q2 2019	904,940	$35,962	$33.65	$28.64 - $40.63
Q1 2019	900,046	$39,215	$35.74	$29.04 - $38.52
Q4 2018	868,258	$31,327	$40.20	$28.75 - $51.73
Q3 2018	1,151,807	$70,168	$52.03	$48.16 - $56.13
Q2 2018	1,167,417	$78,252	$55.08	$49.65 - $60.38
Q1 2018	1,108,192	$71,789	$55.74	$50.17 - $63.87
Q4 2017	998,951	$67,319	$51.22	$48.13 - $54.87
Q3 2017	811,657	$56,621	$51.87	$48.95 - $55.22
Q2 2017	863,916	$56,880	$55.82	$50.94 - $62.85
Q1 2017	886,736	$69,254	$63.35	$59.16 - $67.83
Q4 2016	1,028,847	$86,372	$63.04	$59.05 - $67.18
Q3 2016	1,122,378	$88,264	$60.67	$57.06 - $64.05
Q2 2016	1,071,473	$84,732	$58.24	$54.33 - $62.12
Q1 2016	1,013,947	$74,779	$53.13	$44.84 - $57.72
Q4 2015	1,304,493	$90,988	$56.10	$49.76 - $61.62
Q3 2015	1,427,419	$98,449	$58.92	$50.51 - $64.38
Q2 2015	1,360,046	$117,222	$66.77	$61.74 - $70.26
Q1 2015	1,468,204	$122,507	$61.34	$55.51 - $65.73
Q4 2014	1,448,107	$123,683	$67.34	$57.62 - $74.84
Q3 2014	2,619,567	$266,384	$79.49	$73.30 - $86.48
Q2 2014	2,760,580	$325,611	$74.85	$70.12 - $86.02
Q1 2014	3,195,641	$311,575	$65.48	$61.94 - $71.41
Q4 2013	3,333,128	$300,348	$65.05	$61.32 - $68.30
Q3 2013	4,013,008	$354,589	$58.98	$51.50 - $64.56
Q2 2013	4,055,156	$290,592	$52.90	$49.31 - $55.56