3M CO

Ticker: MMM CUSIP: 88579Y101 Class: COM

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

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

Q4 2025

Shares 11,153 Value ($000) $1,786 Avg Close $163.18 Range $147.82 - $174.69

Q3 2025

Shares 11,493 Value ($000) $1,783 Avg Close $153.11 Range $142.97 - $162.70

Q2 2025

Shares 11,459 Value ($000) $1,745 Avg Close $141.25 Range $120.31 - $152.61

Q1 2025

Shares 11,500 Value ($000) $1,689 Avg Close $144.58 Range $126.59 - $154.21

Q4 2024

Shares 12,192 Value ($000) $1,574 Avg Close $128.38 Range $121.55 - $137.99

Q3 2024

Shares 11,535 Value ($000) $1,577 Avg Close $119.14 Range $95.41 - $137.38

Q2 2024

Shares 11,503 Value ($000) $1,175 Avg Close $94.27 Range $85.08 - $102.26

Q1 2024

Shares 9,341 Value ($000) $991 Avg Close $79.29 Range $72.48 - $88.04

Q4 2023

Shares 8,400 Value ($000) $918 Avg Close $75.54 Range $66.65 - $87.39

Q3 2023

Shares 6,017 Value ($000) $563 Avg Close $79.56 Range $72.16 - $87.04

Q2 2023

Shares 6,417 Value ($000) $642 Avg Close $77.55 Range $71.07 - $81.31

Q1 2023

Shares 6,792 Value ($000) $714 Avg Close $84.88 Range $75.90 - $97.15

Q4 2022

Shares 6,792 Value ($000) $814 Avg Close $90.68 Range $79.15 - $98.99

Q3 2022

Shares 6,217 Value ($000) $687 Avg Close $96.43 Range $81.61 - $111.45

Q2 2022

Shares 10,847 Value ($000) $1,404 Avg Close $105.20 Range $93.15 - $112.04

Q1 2022

Shares 6,847 Value ($000) $1,019 Avg Close $114.60 Range $101.23 - $130.43

Q4 2021

Shares 7,182 Value ($000) $1,276 Avg Close $127.29 Range $121.39 - $132.59

Q3 2021

Shares 6,547 Value ($000) $1,148 Avg Close $137.32 Range $124.81 - $143.53

Q2 2021

Shares 6,739 Value ($000) $1,339 Avg Close $140.42 Range $132.26 - $146.51

Q1 2021

Shares 6,732 Value ($000) $1,297 Avg Close $125.09 Range $113.62 - $137.93

Q4 2020

Shares 6,547 Value ($000) $1,144 Avg Close $117.52 Range $107.65 - $124.92

Q3 2020

Shares 6,447 Value ($000) $1,033 Avg Close $110.37 Range $101.67 - $119.41

Q2 2020

Shares 6,347 Value ($000) $990 Avg Close $102.42 Range $88.63 - $115.84

Q1 2020

Shares 6,247 Value ($000) $853 Avg Close $105.95 Range $77.15 - $122.39

Q4 2019

Shares 6,557 Value ($000) $1,157 Avg Close $111.76 Range $100.09 - $120.13

Q3 2019

Shares 7,597 Value ($000) $1,249 Avg Close $110.63 Range $102.36 - $123.65

Q2 2019

Shares 8,397 Value ($000) $1,456 Avg Close $120.63 Range $104.94 - $143.52

Q1 2019

Shares 7,637 Value ($000) $1,587 Avg Close $131.07 Range $118.62 - $138.19

Q4 2018

Shares 6,247 Value ($000) $1,190 Avg Close $128.25 Range $114.72 - $140.01

Q3 2018

Shares 6,247 Value ($000) $1,316 Avg Close $132.20 Range $121.95 - $140.35

Q2 2018

Shares 10,403 Value ($000) $2,046 Avg Close $130.14 Range $121.67 - $140.90

Q1 2018

Shares 10,543 Value ($000) $2,314 Avg Close $150.16 Range $136.48 - $164.13

Q4 2017

Shares 10,242 Value ($000) $2,411 Avg Close $144.97 Range $132.04 - $154.32

Q3 2017

Shares 10,322 Value ($000) $2,167 Avg Close $129.88 Range $123.25 - $134.94

Q2 2017

Shares 10,482 Value ($000) $2,182 Avg Close $124.67 Range $117.20 - $134.12

Q1 2017

Shares 10,526 Value ($000) $2,014 Avg Close $113.65 Range $107.14 - $120.23

Q4 2016

Shares 10,876 Value ($000) $1,942 Avg Close $106.20 Range $100.51 - $111.16

Q3 2016

Shares 10,926 Value ($000) $1,925 Avg Close $109.19 Range $105.77 - $111.43

Q2 2016

Shares 17,626 Value ($000) $3,087 Avg Close $102.46 Range $99.47 - $106.77

Q1 2016

Shares 17,707 Value ($000) $2,951 Avg Close $92.76 Range $80.95 - $101.43

Q4 2015

Shares 17,707 Value ($000) $2,667 Avg Close $92.11 Range $82.77 - $96.10

Q3 2015

Shares 17,687 Value ($000) $2,507 Avg Close $87.51 Range $80.04 - $93.69

Q2 2015

Shares 19,947 Value ($000) $3,078 Avg Close $94.82 Range $91.30 - $98.85

Q1 2015

Shares 20,127 Value ($000) $3,320 Avg Close $96.87 Range $92.41 - $100.50

Q4 2014

Shares 20,137 Value ($000) $3,309 Avg Close $89.68 Range $76.10 - $98.51

Q3 2014

Shares 20,137 Value ($000) $2,853 Avg Close $83.50 Range $80.18 - $86.16

Q2 2014

Shares 20,767 Value ($000) $2,975 Avg Close $81.05 Range $76.00 - $84.30

Q1 2014

Shares 19,792 Value ($000) $2,685 Avg Close $76.26 Range $70.70 - $79.67

Q4 2013

Shares 20,090 Value ($000) $2,818 Avg Close $72.67 Range $66.39 - $80.32

Q3 2013

Shares 7,890 Value ($000) $942 Avg Close $65.98 Range $61.25 - $69.59

Q2 2013

Shares 8,000 Value ($000) $875 Avg Close $61.26 Range $57.91 - $64.10

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	11,153	$1,786	$163.18	$147.82 - $174.69
Q3 2025	11,493	$1,783	$153.11	$142.97 - $162.70
Q2 2025	11,459	$1,745	$141.25	$120.31 - $152.61
Q1 2025	11,500	$1,689	$144.58	$126.59 - $154.21
Q4 2024	12,192	$1,574	$128.38	$121.55 - $137.99
Q3 2024	11,535	$1,577	$119.14	$95.41 - $137.38
Q2 2024	11,503	$1,175	$94.27	$85.08 - $102.26
Q1 2024	9,341	$991	$79.29	$72.48 - $88.04
Q4 2023	8,400	$918	$75.54	$66.65 - $87.39
Q3 2023	6,017	$563	$79.56	$72.16 - $87.04
Q2 2023	6,417	$642	$77.55	$71.07 - $81.31
Q1 2023	6,792	$714	$84.88	$75.90 - $97.15
Q4 2022	6,792	$814	$90.68	$79.15 - $98.99
Q3 2022	6,217	$687	$96.43	$81.61 - $111.45
Q2 2022	10,847	$1,404	$105.20	$93.15 - $112.04
Q1 2022	6,847	$1,019	$114.60	$101.23 - $130.43
Q4 2021	7,182	$1,276	$127.29	$121.39 - $132.59
Q3 2021	6,547	$1,148	$137.32	$124.81 - $143.53
Q2 2021	6,739	$1,339	$140.42	$132.26 - $146.51
Q1 2021	6,732	$1,297	$125.09	$113.62 - $137.93
Q4 2020	6,547	$1,144	$117.52	$107.65 - $124.92
Q3 2020	6,447	$1,033	$110.37	$101.67 - $119.41
Q2 2020	6,347	$990	$102.42	$88.63 - $115.84
Q1 2020	6,247	$853	$105.95	$77.15 - $122.39
Q4 2019	6,557	$1,157	$111.76	$100.09 - $120.13
Q3 2019	7,597	$1,249	$110.63	$102.36 - $123.65
Q2 2019	8,397	$1,456	$120.63	$104.94 - $143.52
Q1 2019	7,637	$1,587	$131.07	$118.62 - $138.19
Q4 2018	6,247	$1,190	$128.25	$114.72 - $140.01
Q3 2018	6,247	$1,316	$132.20	$121.95 - $140.35
Q2 2018	10,403	$2,046	$130.14	$121.67 - $140.90
Q1 2018	10,543	$2,314	$150.16	$136.48 - $164.13
Q4 2017	10,242	$2,411	$144.97	$132.04 - $154.32
Q3 2017	10,322	$2,167	$129.88	$123.25 - $134.94
Q2 2017	10,482	$2,182	$124.67	$117.20 - $134.12
Q1 2017	10,526	$2,014	$113.65	$107.14 - $120.23
Q4 2016	10,876	$1,942	$106.20	$100.51 - $111.16
Q3 2016	10,926	$1,925	$109.19	$105.77 - $111.43
Q2 2016	17,626	$3,087	$102.46	$99.47 - $106.77
Q1 2016	17,707	$2,951	$92.76	$80.95 - $101.43
Q4 2015	17,707	$2,667	$92.11	$82.77 - $96.10
Q3 2015	17,687	$2,507	$87.51	$80.04 - $93.69
Q2 2015	19,947	$3,078	$94.82	$91.30 - $98.85
Q1 2015	20,127	$3,320	$96.87	$92.41 - $100.50
Q4 2014	20,137	$3,309	$89.68	$76.10 - $98.51
Q3 2014	20,137	$2,853	$83.50	$80.18 - $86.16
Q2 2014	20,767	$2,975	$81.05	$76.00 - $84.30
Q1 2014	19,792	$2,685	$76.26	$70.70 - $79.67
Q4 2013	20,090	$2,818	$72.67	$66.39 - $80.32
Q3 2013	7,890	$942	$65.98	$61.25 - $69.59
Q2 2013	8,000	$875	$61.26	$57.91 - $64.10