3M Company
MX ˙ BMV ˙ US88579Y1010
SecurityMX:MMM / 3M Company
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership3,393,646 shares
Latest Disclosed Value $ 492,858,471
Janus Henderson Group Plc reports 9.28% decrease in ownership of MMM / 3M Company

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 3,393,646 shares of 3M Company (MX:MMM) valued at $492,858,471 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,740,714 shares of 3M Company. This represents a change in shares of -9.28% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-18 2026-03-31 13F/A-1 3M COM 88579Y101 3,393,646 -347,068 -9.28 492,858 -17.70 0.0831
2026-05-15 2026-03-31 13F 3M COM 88579Y101 3,353,252 -387,462 -10.36 486,992 -18.68 0.0903
2026-02-17 2025-12-31 13F 3M COM 88579Y101 3,740,714 -82,941 -2.17 598,891 0.94 0.2682
2025-11-14 2025-09-30 13F 3M COM 88579Y101 3,823,655 387,774 11.29 593,340 13.43 0.2709
2025-08-14 2025-06-30 13F 3M COM 88579Y101 3,435,881 -126,855 -3.56 523,070 1.37 0.2564
2025-05-15 2025-03-31 13F 3M COM 88579Y101 3,562,736 -62,197 -1.72 516,025 10.27 0.2828
2025-02-14 2024-12-31 13F 3M COM 88579Y101 3,624,933 193,957 5.65 467,944 -0.23 0.2378
2024-11-14 2024-09-30 13F 3M COM 88579Y101 3,430,976 -16,209 -0.47 469,011 33.14 0.2401
2024-08-14 2024-06-30 13F 3M COM 88579Y101 3,447,185 2,558,621 287.95 352,271 273.77 0.1886
2024-05-15 2024-03-31 13F 3M COM 88579Y101 888,564 808,914 1,015.59 94,247 982.55 0.0514
2024-02-14 2023-12-31 13F 3M COM 88579Y101 79,650 -26,013 -24.62 8,707 -12.00 0.0052
2023-11-14 2023-09-30 13F 3M COM 88579Y101 105,663 24,259 29.80 9,893 21.42 0.0065
2023-08-14 2023-06-30 13F 3M COM 88579Y101 81,404 -8,737 -9.69 8,148 -13.97 0.0051
2023-05-15 2023-03-31 13F 3M COM 88579Y101 90,141 -8,816 -8.91 9,472 -20.19 0.0062
2023-02-14 2022-12-31 13F 3M COM 88579Y101 98,957 26,707 36.96 11,868 48.50 0.0085
2023-01-13 2022-09-30 13F/A-1 3M COM 88579Y101 72,250 -5,120 -6.62 7,991 -20.23 0.0060
2022-11-14 2022-09-30 13F 3M COM 88579Y101 72,250 -5,120 7,991 0.0060
2022-08-15 2022-06-30 13F 3M COM 88579Y101 77,370 -34,762 -31.00 10,018 -39.99 0.0069
2022-05-16 2022-03-31 13F 3M COM 88579Y101 112,132 5,782 5.44 16,693 -11.64 0.0081
2022-02-14 2021-12-31 13F 3M COM 88579Y101 106,350 -115,862 -52.14 18,891 -51.54 0.0079
2021-11-16 2021-09-30 13F 3M COM 88579Y101 222,212 -12,291 -5.24 38,983 -16.30 0.0170
2021-08-16 2021-06-30 13F 3M COM 88579Y101 234,503 -185,126 -44.12 46,576 -42.40 0.0199
2021-05-17 2021-03-31 13F 3M COM 88579Y101 419,629 -174,451 -29.36 80,863 -22.12 0.0369
2021-02-16 2020-12-31 13F 3M COM 88579Y101 594,080 -8,069 -1.34 103,833 7.66 0.0482
2020-11-16 2020-09-30 13F 3M COM 88579Y101 602,149 99,110 19.70 96,449 22.93 0.0503
2020-08-14 2020-06-30 13F 3M COM 88579Y101 503,039 250,698 99.35 78,461 127.71 0.0440
2020-05-14 2020-03-31 13F 3M COM 88579Y101 252,341 -26,221 -9.41 34,457 -29.88 0.0237
2020-02-18 2019-12-31 13F 3M COM 88579Y101 278,562 -230,573 -45.29 49,142 -41.28 0.0252
2019-11-14 2019-09-30 13F 3M COM 88579Y101 509,135 -312,316 -38.02 83,693 -41.22 0.0453
2019-07-31 2019-06-30 13F 3M COM 88579Y101 821,451 -342,599 -29.43 142,389 -41.13 0.0775
2019-04-30 2019-03-31 13F 3M COM 88579Y101 1,164,050 -24,887 -2.09 241,866 6.77 0.1341
2019-02-06 2018-12-31 13F 3M COM 88579Y101 1,188,937 -765,772 -39.18 226,536 -45.00 0.1445
2018-11-09 2018-09-30 13F 3M COM 88579Y101 1,954,709 -537,202 -21.56 411,876 -15.98 0.2201
2018-08-10 2018-06-30 13F 3M COM 88579Y101 2,491,911 77,867 3.23 490,213 -7.50 0.2794
2018-05-14 2018-03-31 13F 3M COM 88579Y101 2,414,044 556,479 29.96 529,944 21.19 0.3123
2018-03-12 2017-12-31 13F/A-1 3M COM 88579Y101 1,857,565 68,522 3.83 437,268 16.45 0.2693
2018-02-09 2017-12-31 13F 3M COM 88579Y101 1,857,565 68,522 437,268
2017-11-14 2017-09-30 13F 3M COM 88579Y101 1,789,043 442,061 32.82 375,511 33.90 0.2407
2017-08-17 2017-06-30 13F/A-1 3M COM 88579Y101 1,346,982 1,260,724 1,461.57 280,435 1,599.09 0.1911
2017-08-14 2017-06-30 13F 3M COM 88579Y101 1,346,982 1,260,724 280,435
2017-05-03 2017-03-31 13F 3M COM 88579Y101 86,258 240 0.28 16,505 7.38 0.1159
2017-01-30 2016-12-31 13F 3M COM 88579Y101 86,018 8,927 11.58 15,371 13.12 0.1134
2016-10-24 2016-09-30 13F 3M COM 88579Y101 77,091 -1,944 -2.46 13,588 -1.79 0.1001
2016-07-29 2016-06-30 13F 3M COM 88579Y101 79,035 -5,872 -6.92 13,835 -2.20 0.1150
2016-05-12 2016-03-31 13F 3M COM 88579Y101 84,907 2,113 2.55 14,146 13.41 0.1147
2016-02-03 2015-12-31 13F 3M COM 88579Y101 82,794 -5,562 -6.29 12,473 -0.41 0.1001
2015-11-16 2015-09-30 13F 3M COM 88579Y101 88,356 494 0.56 12,524 -7.59 0.1103
2015-08-17 2015-06-30 13F 3M COM 88579Y101 87,862 -1,490 -1.67 13,552 -8.05 0.1065
2015-06-02 2015-03-31 13F/A-1 3M COM 88579Y101 89,352 -7,450 -7.70 14,738 -7.36 0.1137
2015-05-15 2015-03-31 13F 3M COM 88579Y101 89,352 14,738
2015-02-12 2014-12-31 13F 3M COM 88579Y101 96,802 -2,683 -2.70 15,909 12.85 0.1147
2014-11-12 2014-09-30 13F 3M COM 88579Y101 99,485 -2,936 -2.87 14,097 -3.91 0.1326
2014-08-13 2014-06-30 13F 3M COM 88579Y101 102,421 -4,790 -4.47 14,671 0.86 0.1370
2014-05-08 2014-03-31 13F 3M COM 88579Y101 107,211 9,135 9.31 14,546 5.76 0.1416
2014-01-14 2013-12-31 13F 3M COM 88579Y101 98,076 0 0.00 13,754 17.40 0.1390
2013-11-12 2013-09-30 13F 3M COM 88579Y101 98,076 -1,616 -1.62 11,716 7.53 0.1292
2013-08-15 2013-06-30 13F 3M COM 88579Y101 99,692 99,692 10,896 0.1274
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.