WD-40 CO

Ticker: WDFC CUSIP: 929236107 Class: EQTY

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q4 2025

Shares 37,820 Value ($000) $7,447 Avg Close $195.95 Range $185.27 - $213.93

Q3 2025

Shares 37,820 Value ($000) $7,473 Avg Close $214.35 Range $192.63 - $234.01

Q2 2025

Shares 37,820 Value ($000) $8,626 Avg Close $231.83 Range $204.21 - $248.86

Q1 2025

Shares 37,820 Value ($000) $9,228 Avg Close $231.88 Range $216.42 - $248.13

Q4 2024

Shares 37,820 Value ($000) $9,178 Avg Close $260.26 Range $234.68 - $285.86

Q3 2024

Shares 37,820 Value ($000) $9,753 Avg Close $244.28 Range $204.93 - $265.55

Q2 2024

Shares 37,820 Value ($000) $8,307 Avg Close $224.34 Range $208.03 - $254.26

Q1 2024

Shares 37,820 Value ($000) $9,580 Avg Close $250.16 Range $223.34 - $268.83

Q4 2023

Shares 37,845 Value ($000) $9,048 Avg Close $215.12 Range $187.17 - $236.99

Q3 2023

Shares 38,345 Value ($000) $7,793 Avg Close $205.31 Range $174.98 - $224.57

Q2 2023

Shares 39,345 Value ($000) $7,422 Avg Close $180.66 Range $156.02 - $195.43

Q1 2023

Shares 39,345 Value ($000) $7,005 Avg Close $164.32 Range $150.31 - $178.03

Q4 2022

Shares 39,345 Value ($000) $6,343 Avg Close $157.96 Range $137.57 - $175.84

Q3 2022

Shares 39,345 Value ($000) $6,914 Avg Close $176.10 Range $154.02 - $197.78

Q2 2022

Shares 40,345 Value ($000) $8,124 Avg Close $175.17 Range $159.39 - $195.33

Q1 2022

Shares 40,345 Value ($000) $7,392 Avg Close $199.68 Range $170.30 - $238.75

Q4 2021

Shares 40,345 Value ($000) $9,870 Avg Close $216.94 Range $193.07 - $237.92

Q3 2021

Shares 40,345 Value ($000) $9,339 Avg Close $222.82 Range $206.21 - $259.43

Q2 2021

Shares 40,345 Value ($000) $10,340 Avg Close $236.72 Range $219.93 - $296.99

Q1 2021

Shares 40,845 Value ($000) $12,506 Avg Close $280.17 Range $234.79 - $308.09

Q4 2020

Shares 43,500 Value ($000) $11,557 Avg Close $223.09 Range $168.63 - $251.28

Q3 2020

Shares 43,700 Value ($000) $8,273 Avg Close $180.27 Range $168.83 - $190.61

Q2 2020

Shares 43,700 Value ($000) $8,666 Avg Close $166.00 Range $137.84 - $184.59

Q1 2020

Shares 43,700 Value ($000) $8,777 Avg Close $171.62 Range $149.78 - $193.03

Q4 2019

Shares 43,700 Value ($000) $8,484 Avg Close $171.13 Range $156.79 - $181.26

Q3 2019

Shares 43,700 Value ($000) $8,021 Avg Close $162.75 Range $142.61 - $170.51

Q2 2019

Shares 43,700 Value ($000) $6,950 Avg Close $147.91 Range $138.90 - $155.99

Q1 2019

Shares 43,700 Value ($000) $7,405 Avg Close $158.33 Range $147.89 - $165.74

Q4 2018

Shares 43,700 Value ($000) $8,008 Avg Close $151.67 Range $133.41 - $168.03

Q3 2018

Shares 43,700 Value ($000) $7,521 Avg Close $149.30 Range $128.21 - $164.55

Q2 2018

Shares 43,700 Value ($000) $6,391 Avg Close $122.47 Range $111.43 - $134.71

Q1 2018

Shares 43,700 Value ($000) $5,755 Avg Close $111.74 Range $102.00 - $119.19

Q4 2017

Shares 43,700 Value ($000) $5,157 Avg Close $101.18 Range $93.65 - $108.26

Q3 2017

Shares 43,700 Value ($000) $4,890 Avg Close $94.77 Range $91.23 - $99.57

Q2 2017

Shares 43,700 Value ($000) $4,822 Avg Close $93.06 Range $88.02 - $99.83

Q1 2017

Shares 43,900 Value ($000) $4,783 Avg Close $94.70 Range $87.23 - $103.92

Q4 2016

Shares 43,900 Value ($000) $5,132 Avg Close $95.11 Range $87.84 - $101.71

Q3 2016

Shares 43,900 Value ($000) $4,936 Avg Close $100.86 Range $95.26 - $107.55

Q2 2016

Shares 43,900 Value ($000) $5,156 Avg Close $93.26 Range $85.10 - $101.68

Q1 2016

Shares 42,900 Value ($000) $4,634 Avg Close $88.52 Range $80.20 - $94.25

Q4 2015

Shares 42,900 Value ($000) $4,232 Avg Close $82.77 Range $74.64 - $89.58

Q3 2015

Shares 42,900 Value ($000) $3,821 Avg Close $74.03 Range $68.72 - $78.00

Q2 2015

Shares 43,900 Value ($000) $3,826 Avg Close $71.61 Range $67.82 - $75.37

Q1 2015

Shares 43,900 Value ($000) $3,887 Avg Close $70.77 Range $67.38 - $75.28

Q4 2014

Shares 44,000 Value ($000) $3,744 Avg Close $63.74 Range $54.66 - $73.03

Q3 2014

Shares 44,000 Value ($000) $2,990 Avg Close $57.88 Range $55.12 - $63.95

Q2 2014

Shares 44,000 Value ($000) $3,310 Avg Close $60.75 Range $57.96 - $65.23

Q1 2014

Shares 44,000 Value ($000) $3,413 Avg Close $60.19 Range $55.20 - $64.51

Q4 2013

Shares 45,000 Value ($000) $3,361 Avg Close $58.73 Range $49.78 - $65.29

Q3 2013

Shares 46,000 Value ($000) $2,985 Avg Close $48.79 Range $44.37 - $53.55

Q2 2013

Shares 47,000 Value ($000) $2,561 Avg Close $44.73 Range $41.57 - $47.16

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	37,820	$7,447	$195.95	$185.27 - $213.93
Q3 2025	37,820	$7,473	$214.35	$192.63 - $234.01
Q2 2025	37,820	$8,626	$231.83	$204.21 - $248.86
Q1 2025	37,820	$9,228	$231.88	$216.42 - $248.13
Q4 2024	37,820	$9,178	$260.26	$234.68 - $285.86
Q3 2024	37,820	$9,753	$244.28	$204.93 - $265.55
Q2 2024	37,820	$8,307	$224.34	$208.03 - $254.26
Q1 2024	37,820	$9,580	$250.16	$223.34 - $268.83
Q4 2023	37,845	$9,048	$215.12	$187.17 - $236.99
Q3 2023	38,345	$7,793	$205.31	$174.98 - $224.57
Q2 2023	39,345	$7,422	$180.66	$156.02 - $195.43
Q1 2023	39,345	$7,005	$164.32	$150.31 - $178.03
Q4 2022	39,345	$6,343	$157.96	$137.57 - $175.84
Q3 2022	39,345	$6,914	$176.10	$154.02 - $197.78
Q2 2022	40,345	$8,124	$175.17	$159.39 - $195.33
Q1 2022	40,345	$7,392	$199.68	$170.30 - $238.75
Q4 2021	40,345	$9,870	$216.94	$193.07 - $237.92
Q3 2021	40,345	$9,339	$222.82	$206.21 - $259.43
Q2 2021	40,345	$10,340	$236.72	$219.93 - $296.99
Q1 2021	40,845	$12,506	$280.17	$234.79 - $308.09
Q4 2020	43,500	$11,557	$223.09	$168.63 - $251.28
Q3 2020	43,700	$8,273	$180.27	$168.83 - $190.61
Q2 2020	43,700	$8,666	$166.00	$137.84 - $184.59
Q1 2020	43,700	$8,777	$171.62	$149.78 - $193.03
Q4 2019	43,700	$8,484	$171.13	$156.79 - $181.26
Q3 2019	43,700	$8,021	$162.75	$142.61 - $170.51
Q2 2019	43,700	$6,950	$147.91	$138.90 - $155.99
Q1 2019	43,700	$7,405	$158.33	$147.89 - $165.74
Q4 2018	43,700	$8,008	$151.67	$133.41 - $168.03
Q3 2018	43,700	$7,521	$149.30	$128.21 - $164.55
Q2 2018	43,700	$6,391	$122.47	$111.43 - $134.71
Q1 2018	43,700	$5,755	$111.74	$102.00 - $119.19
Q4 2017	43,700	$5,157	$101.18	$93.65 - $108.26
Q3 2017	43,700	$4,890	$94.77	$91.23 - $99.57
Q2 2017	43,700	$4,822	$93.06	$88.02 - $99.83
Q1 2017	43,900	$4,783	$94.70	$87.23 - $103.92
Q4 2016	43,900	$5,132	$95.11	$87.84 - $101.71
Q3 2016	43,900	$4,936	$100.86	$95.26 - $107.55
Q2 2016	43,900	$5,156	$93.26	$85.10 - $101.68
Q1 2016	42,900	$4,634	$88.52	$80.20 - $94.25
Q4 2015	42,900	$4,232	$82.77	$74.64 - $89.58
Q3 2015	42,900	$3,821	$74.03	$68.72 - $78.00
Q2 2015	43,900	$3,826	$71.61	$67.82 - $75.37
Q1 2015	43,900	$3,887	$70.77	$67.38 - $75.28
Q4 2014	44,000	$3,744	$63.74	$54.66 - $73.03
Q3 2014	44,000	$2,990	$57.88	$55.12 - $63.95
Q2 2014	44,000	$3,310	$60.75	$57.96 - $65.23
Q1 2014	44,000	$3,413	$60.19	$55.20 - $64.51
Q4 2013	45,000	$3,361	$58.73	$49.78 - $65.29
Q3 2013	46,000	$2,985	$48.79	$44.37 - $53.55
Q2 2013	47,000	$2,561	$44.73	$41.57 - $47.16