KIRBY CORP

Ticker: KEX CUSIP: 497266106 Class: COM

PRIMECAP MANAGEMENT CO/CA/'s Holding History (CIK: 0000763212)

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

Q4 2025

Shares 277,803 Value ($000) $30,608 Avg Close $101.65 Range $79.52 - $115.18

Q3 2025

Shares 285,853 Value ($000) $23,854 Avg Close $100.46 Range $81.90 - $122.50

Q2 2025

Shares 241,853 Value ($000) $27,429 Avg Close $104.91 Range $83.94 - $116.33

Q1 2025

Shares 264,350 Value ($000) $26,702 Avg Close $104.38 Range $93.85 - $115.93

Q4 2024

Shares 270,150 Value ($000) $28,582 Avg Close $120.50 Range $103.74 - $132.21

Q3 2024

Shares 268,000 Value ($000) $32,811 Avg Close $119.27 Range $102.74 - $130.90

Q2 2024

Shares 282,100 Value ($000) $33,776 Avg Close $111.71 Range $93.63 - $124.92

Q1 2024

Shares 317,600 Value ($000) $30,274 Avg Close $84.38 Range $74.88 - $95.79

Q4 2023

Shares 328,500 Value ($000) $25,781 Avg Close $78.20 Range $72.11 - $83.62

Q3 2023

Shares 347,700 Value ($000) $28,790 Avg Close $80.84 Range $73.76 - $87.52

Q2 2023

Shares 353,100 Value ($000) $27,171 Avg Close $71.97 Range $66.42 - $77.29

Q1 2023

Shares 367,100 Value ($000) $25,587 Avg Close $68.89 Range $60.14 - $76.34

Q4 2022

Shares 403,500 Value ($000) $25,965 Avg Close $66.74 Range $61.28 - $72.14

Q3 2022

Shares 416,700 Value ($000) $25,323 Avg Close $64.05 Range $55.03 - $71.47

Q2 2022

Shares 424,800 Value ($000) $25,845 Avg Close $65.10 Range $56.62 - $73.79

Q1 2022

Shares 442,000 Value ($000) $31,908 Avg Close $66.66 Range $58.84 - $75.08

Q4 2021

Shares 442,600 Value ($000) $26,299 Avg Close $55.90 Range $47.58 - $60.67

Q3 2021

Shares 446,800 Value ($000) $21,429 Avg Close $55.45 Range $47.91 - $62.15

Q2 2021

Shares 450,100 Value ($000) $27,294 Avg Close $64.44 Range $58.88 - $70.60

Q1 2021

Shares 450,100 Value ($000) $27,132 Avg Close $60.05 Range $48.05 - $70.00

Q4 2020

Shares 452,600 Value ($000) $23,458 Avg Close $45.56 Range $35.10 - $56.13

Q3 2018

Shares 3,000 Value ($000) $247 Avg Close $83.86 Range $75.70 - $88.80

Q2 2018

Shares 3,000 Value ($000) $251 Avg Close $86.79 Range $76.20 - $94.05

Q1 2018

Shares 3,000 Value ($000) $231 Avg Close $74.83 Range $66.80 - $80.90

Q4 2017

Shares 3,000 Value ($000) $200 Avg Close $65.55 Range $61.80 - $72.95

Q3 2017

Shares 3,600 Value ($000) $237 Avg Close $63.38 Range $59.25 - $68.60

Q2 2017

Shares 3,600 Value ($000) $241 Avg Close $68.12 Range $62.55 - $74.50

Q1 2017

Shares 3,600 Value ($000) $254 Avg Close $68.26 Range $61.65 - $73.40

Q4 2016

Shares 606,895 Value ($000) $40,359 Avg Close $63.22 Range $55.11 - $70.90

Q3 2016

Shares 623,845 Value ($000) $38,778 Avg Close $57.39 Range $50.80 - $64.85

Q2 2016

Shares 715,795 Value ($000) $44,658 Avg Close $65.49 Range $57.92 - $73.25

Q1 2016

Shares 792,395 Value ($000) $47,773 Avg Close $54.54 Range $44.63 - $63.03

Q4 2015

Shares 597,150 Value ($000) $31,422 Avg Close $61.90 Range $50.42 - $69.05

Q3 2015

Shares 648,100 Value ($000) $40,150 Avg Close $70.69 Range $59.54 - $78.72

Q2 2015

Shares 701,600 Value ($000) $53,785 Avg Close $79.24 Range $73.31 - $84.24

Q1 2015

Shares 711,074 Value ($000) $53,366 Avg Close $77.15 Range $70.89 - $82.91

Q4 2014

Shares 711,913 Value ($000) $57,480 Avg Close $99.06 Range $78.84 - $117.78

Q3 2014

Shares 795,263 Value ($000) $93,722 Avg Close $119.07 Range $114.11 - $124.12

Q2 2014

Shares 845,089 Value ($000) $98,994 Avg Close $107.32 Range $96.00 - $117.18

Q1 2014

Shares 911,089 Value ($000) $92,248 Avg Close $100.72 Range $92.86 - $106.93

Q4 2013

Shares 945,189 Value ($000) $93,810 Avg Close $91.83 Range $82.16 - $99.41

Q3 2013

Shares 986,300 Value ($000) $85,364 Avg Close $83.89 Range $79.15 - $89.19

Q2 2013

Shares 1,063,200 Value ($000) $84,567 Avg Close $77.04 Range $71.44 - $82.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	277,803	$30,608	$101.65	$79.52 - $115.18
Q3 2025	285,853	$23,854	$100.46	$81.90 - $122.50
Q2 2025	241,853	$27,429	$104.91	$83.94 - $116.33
Q1 2025	264,350	$26,702	$104.38	$93.85 - $115.93
Q4 2024	270,150	$28,582	$120.50	$103.74 - $132.21
Q3 2024	268,000	$32,811	$119.27	$102.74 - $130.90
Q2 2024	282,100	$33,776	$111.71	$93.63 - $124.92
Q1 2024	317,600	$30,274	$84.38	$74.88 - $95.79
Q4 2023	328,500	$25,781	$78.20	$72.11 - $83.62
Q3 2023	347,700	$28,790	$80.84	$73.76 - $87.52
Q2 2023	353,100	$27,171	$71.97	$66.42 - $77.29
Q1 2023	367,100	$25,587	$68.89	$60.14 - $76.34
Q4 2022	403,500	$25,965	$66.74	$61.28 - $72.14
Q3 2022	416,700	$25,323	$64.05	$55.03 - $71.47
Q2 2022	424,800	$25,845	$65.10	$56.62 - $73.79
Q1 2022	442,000	$31,908	$66.66	$58.84 - $75.08
Q4 2021	442,600	$26,299	$55.90	$47.58 - $60.67
Q3 2021	446,800	$21,429	$55.45	$47.91 - $62.15
Q2 2021	450,100	$27,294	$64.44	$58.88 - $70.60
Q1 2021	450,100	$27,132	$60.05	$48.05 - $70.00
Q4 2020	452,600	$23,458	$45.56	$35.10 - $56.13
Q3 2018	3,000	$247	$83.86	$75.70 - $88.80
Q2 2018	3,000	$251	$86.79	$76.20 - $94.05
Q1 2018	3,000	$231	$74.83	$66.80 - $80.90
Q4 2017	3,000	$200	$65.55	$61.80 - $72.95
Q3 2017	3,600	$237	$63.38	$59.25 - $68.60
Q2 2017	3,600	$241	$68.12	$62.55 - $74.50
Q1 2017	3,600	$254	$68.26	$61.65 - $73.40
Q4 2016	606,895	$40,359	$63.22	$55.11 - $70.90
Q3 2016	623,845	$38,778	$57.39	$50.80 - $64.85
Q2 2016	715,795	$44,658	$65.49	$57.92 - $73.25
Q1 2016	792,395	$47,773	$54.54	$44.63 - $63.03
Q4 2015	597,150	$31,422	$61.90	$50.42 - $69.05
Q3 2015	648,100	$40,150	$70.69	$59.54 - $78.72
Q2 2015	701,600	$53,785	$79.24	$73.31 - $84.24
Q1 2015	711,074	$53,366	$77.15	$70.89 - $82.91
Q4 2014	711,913	$57,480	$99.06	$78.84 - $117.78
Q3 2014	795,263	$93,722	$119.07	$114.11 - $124.12
Q2 2014	845,089	$98,994	$107.32	$96.00 - $117.18
Q1 2014	911,089	$92,248	$100.72	$92.86 - $106.93
Q4 2013	945,189	$93,810	$91.83	$82.16 - $99.41
Q3 2013	986,300	$85,364	$83.89	$79.15 - $89.19
Q2 2013	1,063,200	$84,567	$77.04	$71.44 - $82.84