FASTENAL CO

Ticker: FAST CUSIP: 311900104 Class: COM

GRANDFIELD & DODD, LLC's Holding History (CIK: 0001308016)

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

Q4 2025

Shares 52,228 Value ($000) $2,096 Avg Close $42.03 Range $38.97 - $48.84

Q3 2025

Shares 52,228 Value ($000) $2,561 Avg Close $46.94 Range $41.34 - $50.37

Q2 2025

Shares 53,100 Value ($000) $2,230 Avg Close $40.11 Range $34.77 - $42.68

Q1 2025

Shares 26,550 Value ($000) $2,059 Avg Close $36.85 Range $34.62 - $40.45

Q4 2024

Shares 26,550 Value ($000) $1,909 Avg Close $38.15 Range $33.79 - $41.56

Q3 2024

Shares 26,550 Value ($000) $1,896 Avg Close $32.92 Range $29.72 - $35.31

Q2 2024

Shares 26,550 Value ($000) $1,668 Avg Close $32.62 Range $29.97 - $37.14

Q1 2024

Shares 26,550 Value ($000) $2,048 Avg Close $33.99 Range $29.37 - $38.06

Q4 2023

Shares 26,850 Value ($000) $1,739 Avg Close $28.68 Range $25.51 - $31.44

Q3 2023

Shares 26,850 Value ($000) $1,467 Avg Close $26.81 Range $25.46 - $27.94

Q2 2023

Shares 26,850 Value ($000) $1,584 Avg Close $25.68 Range $23.49 - $27.88

Q1 2023

Shares 27,160 Value ($000) $1,465 Avg Close $23.90 Range $21.20 - $25.85

Q4 2022

Shares 26,360 Value ($000) $1,247 Avg Close $22.64 Range $20.15 - $24.81

Q3 2022

Shares 28,446 Value ($000) $1,310 Avg Close $23.19 Range $20.91 - $26.10

Q2 2022

Shares 28,446 Value ($000) $1,420 Avg Close $24.63 Range $22.02 - $27.65

Q1 2022

Shares 28,446 Value ($000) $1,690 Avg Close $25.41 Range $22.24 - $29.03

Q4 2021

Shares 28,446 Value ($000) $1,820 Avg Close $26.67 Range $22.84 - $29.32

Q3 2021

Shares 29,856 Value ($000) $1,540 Avg Close $24.41 Range $23.10 - $25.41

Q2 2021

Shares 29,856 Value ($000) $1,550 Avg Close $23.29 Range $21.65 - $24.35

Q1 2021

Shares 29,856 Value ($000) $1,500 Avg Close $21.29 Range $19.34 - $22.99

Q4 2020

Shares 29,856 Value ($000) $1,460 Avg Close $20.72 Range $18.71 - $22.36

Q3 2020

Shares 29,856 Value ($000) $1,350 Avg Close $20.06 Range $18.42 - $21.79

Q2 2020

Shares 29,856 Value ($000) $1,280 Avg Close $16.59 Range $12.92 - $18.78

Q1 2020

Shares 29,570 Value ($000) $924 Avg Close $15.16 Range $11.53 - $16.97

Q4 2019

Shares 29,570 Value ($000) $1,093 Avg Close $15.30 Range $12.85 - $16.26

Q3 2019

Shares 29,570 Value ($000) $966 Avg Close $13.23 Range $12.10 - $14.53

Q2 2019

Shares 29,570 Value ($000) $964 Avg Close $13.93 Range $12.69 - $15.21

Q1 2019

Shares 14,785 Value ($000) $951 Avg Close $12.63 Range $10.38 - $13.57

Q4 2018

Shares 14,785 Value ($000) $773 Avg Close $11.28 Range $10.02 - $12.62

Q3 2018

Shares 15,485 Value ($000) $898 Avg Close $11.78 Range $9.75 - $12.67

Q2 2018

Shares 15,635 Value ($000) $753 Avg Close $10.63 Range $9.90 - $11.44

Q1 2018

Shares 15,635 Value ($000) $854 Avg Close $11.23 Range $10.45 - $12.00

Q4 2017

Shares 15,635 Value ($000) $855 Avg Close $10.04 Range $8.57 - $11.25

Q3 2017

Shares 15,635 Value ($000) $713 Avg Close $8.67 Range $8.02 - $9.32

Q2 2017

Shares 15,635 Value ($000) $681 Avg Close $8.97 Range $8.38 - $10.48

Q1 2017

Shares 13,571 Value ($000) $699 Avg Close $9.94 Range $9.10 - $10.46

Q4 2016

Shares 13,571 Value ($000) $638 Avg Close $8.65 Range $7.38 - $9.73

Q3 2016

Shares 13,571 Value ($000) $567 Avg Close $8.32 Range $7.81 - $8.91

Q1 2015

Shares 9,982 Value ($000) $414 Avg Close $8.09 Range $7.41 - $9.02

Q4 2014

Shares 9,982 Value ($000) $475 Avg Close $8.34 Range $7.45 - $9.03

Q3 2014

Shares 10,034 Value ($000) $451 Avg Close $8.47 Range $8.05 - $9.26

Q2 2014

Shares 9,982 Value ($000) $494 Avg Close $9.11 Range $8.73 - $9.58

Q1 2014

Shares 12,982 Value ($000) $640 Avg Close $8.57 Range $7.79 - $9.32

Q4 2013

Shares 12,982 Value ($000) $617 Avg Close $8.75 Range $8.03 - $9.48

Q3 2013

Shares 19,982 Value ($000) $1,004 Avg Close $8.59 Range $7.94 - $9.35

Q2 2013

Shares 19,982 Value ($000) $915 Avg Close $8.84 Range $8.02 - $9.59

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	52,228	$2,096	$42.03	$38.97 - $48.84
Q3 2025	52,228	$2,561	$46.94	$41.34 - $50.37
Q2 2025	53,100	$2,230	$40.11	$34.77 - $42.68
Q1 2025	26,550	$2,059	$36.85	$34.62 - $40.45
Q4 2024	26,550	$1,909	$38.15	$33.79 - $41.56
Q3 2024	26,550	$1,896	$32.92	$29.72 - $35.31
Q2 2024	26,550	$1,668	$32.62	$29.97 - $37.14
Q1 2024	26,550	$2,048	$33.99	$29.37 - $38.06
Q4 2023	26,850	$1,739	$28.68	$25.51 - $31.44
Q3 2023	26,850	$1,467	$26.81	$25.46 - $27.94
Q2 2023	26,850	$1,584	$25.68	$23.49 - $27.88
Q1 2023	27,160	$1,465	$23.90	$21.20 - $25.85
Q4 2022	26,360	$1,247	$22.64	$20.15 - $24.81
Q3 2022	28,446	$1,310	$23.19	$20.91 - $26.10
Q2 2022	28,446	$1,420	$24.63	$22.02 - $27.65
Q1 2022	28,446	$1,690	$25.41	$22.24 - $29.03
Q4 2021	28,446	$1,820	$26.67	$22.84 - $29.32
Q3 2021	29,856	$1,540	$24.41	$23.10 - $25.41
Q2 2021	29,856	$1,550	$23.29	$21.65 - $24.35
Q1 2021	29,856	$1,500	$21.29	$19.34 - $22.99
Q4 2020	29,856	$1,460	$20.72	$18.71 - $22.36
Q3 2020	29,856	$1,350	$20.06	$18.42 - $21.79
Q2 2020	29,856	$1,280	$16.59	$12.92 - $18.78
Q1 2020	29,570	$924	$15.16	$11.53 - $16.97
Q4 2019	29,570	$1,093	$15.30	$12.85 - $16.26
Q3 2019	29,570	$966	$13.23	$12.10 - $14.53
Q2 2019	29,570	$964	$13.93	$12.69 - $15.21
Q1 2019	14,785	$951	$12.63	$10.38 - $13.57
Q4 2018	14,785	$773	$11.28	$10.02 - $12.62
Q3 2018	15,485	$898	$11.78	$9.75 - $12.67
Q2 2018	15,635	$753	$10.63	$9.90 - $11.44
Q1 2018	15,635	$854	$11.23	$10.45 - $12.00
Q4 2017	15,635	$855	$10.04	$8.57 - $11.25
Q3 2017	15,635	$713	$8.67	$8.02 - $9.32
Q2 2017	15,635	$681	$8.97	$8.38 - $10.48
Q1 2017	13,571	$699	$9.94	$9.10 - $10.46
Q4 2016	13,571	$638	$8.65	$7.38 - $9.73
Q3 2016	13,571	$567	$8.32	$7.81 - $8.91
Q1 2015	9,982	$414	$8.09	$7.41 - $9.02
Q4 2014	9,982	$475	$8.34	$7.45 - $9.03
Q3 2014	10,034	$451	$8.47	$8.05 - $9.26
Q2 2014	9,982	$494	$9.11	$8.73 - $9.58
Q1 2014	12,982	$640	$8.57	$7.79 - $9.32
Q4 2013	12,982	$617	$8.75	$8.03 - $9.48
Q3 2013	19,982	$1,004	$8.59	$7.94 - $9.35
Q2 2013	19,982	$915	$8.84	$8.02 - $9.59